java -Xmx8000000000 -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 ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf -i ../../../trunk/examples/svcomp/loops/trex03_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 20:30:25,547 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 20:30:25,549 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 20:30:25,566 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 20:30:25,566 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 20:30:25,567 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 20:30:25,569 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 20:30:25,571 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 20:30:25,572 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 20:30:25,573 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 20:30:25,574 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 20:30:25,575 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 20:30:25,576 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 20:30:25,577 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 20:30:25,578 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 20:30:25,579 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 20:30:25,579 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 20:30:25,581 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 20:30:25,584 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 20:30:25,585 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 20:30:25,587 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 20:30:25,588 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 20:30:25,590 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 20:30:25,591 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 20:30:25,591 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 20:30:25,592 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 20:30:25,593 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 20:30:25,594 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 20:30:25,594 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 20:30:25,596 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 20:30:25,596 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 20:30:25,597 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 20:30:25,597 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 20:30:25,597 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 20:30:25,598 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 20:30:25,599 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 20:30:25,599 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-12 20:30:25,617 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 20:30:25,617 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 20:30:25,618 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 20:30:25,619 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 20:30:25,620 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 20:30:25,620 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 20:30:25,620 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 20:30:25,620 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 20:30:25,622 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 20:30:25,622 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 20:30:25,623 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 20:30:25,623 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 20:30:25,623 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 20:30:25,624 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 20:30:25,624 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 20:30:25,624 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 20:30:25,624 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 20:30:25,625 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 20:30:25,626 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 20:30:25,626 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 20:30:25,626 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 20:30:25,626 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 20:30:25,626 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 20:30:25,626 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 20:30:25,627 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 20:30:25,628 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 20:30:25,628 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 20:30:25,628 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 20:30:25,628 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 20:30:25,629 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 20:30:25,629 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 20:30:25,630 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 20:30:25,630 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 20:30:25,630 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 20:30:25,630 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 20:30:25,687 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 20:30:25,700 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 20:30:25,703 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 20:30:25,704 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 20:30:25,704 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 20:30:25,705 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/trex03_true-unreach-call_true-termination.i [2018-11-12 20:30:25,767 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29ae32f08/085eb5017d1a470284b37ab844638a4c/FLAGb45ea92d7 [2018-11-12 20:30:26,225 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 20:30:26,227 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/trex03_true-unreach-call_true-termination.i [2018-11-12 20:30:26,236 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29ae32f08/085eb5017d1a470284b37ab844638a4c/FLAGb45ea92d7 [2018-11-12 20:30:26,256 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29ae32f08/085eb5017d1a470284b37ab844638a4c [2018-11-12 20:30:26,270 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 20:30:26,272 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 20:30:26,274 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 20:30:26,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 20:30:26,282 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 20:30:26,283 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:30:26" (1/1) ... [2018-11-12 20:30:26,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4abe5e14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:26, skipping insertion in model container [2018-11-12 20:30:26,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:30:26" (1/1) ... [2018-11-12 20:30:26,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 20:30:26,326 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 20:30:26,537 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 20:30:26,541 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 20:30:26,563 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 20:30:26,584 INFO L193 MainTranslator]: Completed translation [2018-11-12 20:30:26,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:26 WrapperNode [2018-11-12 20:30:26,585 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 20:30:26,586 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 20:30:26,586 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 20:30:26,586 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 20:30:26,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:26" (1/1) ... [2018-11-12 20:30:26,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:26" (1/1) ... [2018-11-12 20:30:26,607 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 20:30:26,608 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 20:30:26,608 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 20:30:26,608 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 20:30:26,617 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:26" (1/1) ... [2018-11-12 20:30:26,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:26" (1/1) ... [2018-11-12 20:30:26,618 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:26" (1/1) ... [2018-11-12 20:30:26,618 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:26" (1/1) ... [2018-11-12 20:30:26,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:26" (1/1) ... [2018-11-12 20:30:26,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:26" (1/1) ... [2018-11-12 20:30:26,628 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:26" (1/1) ... [2018-11-12 20:30:26,630 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 20:30:26,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 20:30:26,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 20:30:26,630 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 20:30:26,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:26" (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 [2018-11-12 20:30:26,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 20:30:26,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 20:30:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 20:30:26,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 20:30:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 20:30:26,772 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 20:30:26,773 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-12 20:30:26,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-12 20:30:27,043 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 20:30:27,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:30:27 BoogieIcfgContainer [2018-11-12 20:30:27,044 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 20:30:27,045 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 20:30:27,045 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 20:30:27,049 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 20:30:27,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 08:30:26" (1/3) ... [2018-11-12 20:30:27,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@515dafd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:30:27, skipping insertion in model container [2018-11-12 20:30:27,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:26" (2/3) ... [2018-11-12 20:30:27,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@515dafd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:30:27, skipping insertion in model container [2018-11-12 20:30:27,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:30:27" (3/3) ... [2018-11-12 20:30:27,053 INFO L112 eAbstractionObserver]: Analyzing ICFG trex03_true-unreach-call_true-termination.i [2018-11-12 20:30:27,063 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 20:30:27,071 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 20:30:27,086 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 20:30:27,122 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 20:30:27,122 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 20:30:27,122 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 20:30:27,122 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 20:30:27,123 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 20:30:27,123 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 20:30:27,123 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 20:30:27,123 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 20:30:27,143 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-11-12 20:30:27,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-12 20:30:27,150 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 20:30:27,151 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 20:30:27,153 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 20:30:27,158 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 20:30:27,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1575744449, now seen corresponding path program 1 times [2018-11-12 20:30:27,161 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 20:30:27,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 20:30:27,214 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 20:30:27,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 20:30:27,214 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 20:30:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 20:30:27,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 20:30:27,282 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 20:30:27,282 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-12 20:30:27,283 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 20:30:27,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-12 20:30:27,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-12 20:30:27,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-12 20:30:27,303 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2018-11-12 20:30:27,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 20:30:27,326 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2018-11-12 20:30:27,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-12 20:30:27,327 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-11-12 20:30:27,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 20:30:27,336 INFO L225 Difference]: With dead ends: 34 [2018-11-12 20:30:27,337 INFO L226 Difference]: Without dead ends: 15 [2018-11-12 20:30:27,341 INFO L604 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 [2018-11-12 20:30:27,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-11-12 20:30:27,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-11-12 20:30:27,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-12 20:30:27,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2018-11-12 20:30:27,384 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 10 [2018-11-12 20:30:27,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 20:30:27,385 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2018-11-12 20:30:27,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-12 20:30:27,385 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2018-11-12 20:30:27,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-12 20:30:27,386 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 20:30:27,387 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 20:30:27,387 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 20:30:27,387 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 20:30:27,388 INFO L82 PathProgramCache]: Analyzing trace with hash 998051845, now seen corresponding path program 1 times [2018-11-12 20:30:27,388 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 20:30:27,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 20:30:27,389 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 20:30:27,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 20:30:27,390 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 20:30:27,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 20:30:27,673 WARN L179 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-11-12 20:30:27,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 20:30:27,811 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 20:30:27,811 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-12 20:30:27,811 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 20:30:27,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 20:30:27,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 20:30:27,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-12 20:30:27,814 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 5 states. [2018-11-12 20:30:27,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 20:30:27,906 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2018-11-12 20:30:27,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-12 20:30:27,907 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-11-12 20:30:27,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 20:30:27,908 INFO L225 Difference]: With dead ends: 15 [2018-11-12 20:30:27,908 INFO L226 Difference]: Without dead ends: 0 [2018-11-12 20:30:27,910 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-12 20:30:27,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-12 20:30:27,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-12 20:30:27,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-12 20:30:27,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-12 20:30:27,913 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2018-11-12 20:30:27,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 20:30:27,914 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-12 20:30:27,914 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-12 20:30:27,914 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-12 20:30:27,914 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-12 20:30:27,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-12 20:30:28,020 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-12 20:30:28,020 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-12 20:30:28,020 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-12 20:30:28,020 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-12 20:30:28,021 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-12 20:30:28,021 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-12 20:30:28,021 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 25) no Hoare annotation was computed. [2018-11-12 20:30:28,021 INFO L425 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-11-12 20:30:28,022 INFO L425 ceAbstractionStarter]: For program point L17(lines 17 19) no Hoare annotation was computed. [2018-11-12 20:30:28,022 INFO L425 ceAbstractionStarter]: For program point L15-1(lines 15 22) no Hoare annotation was computed. [2018-11-12 20:30:28,022 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 25) no Hoare annotation was computed. [2018-11-12 20:30:28,022 INFO L428 ceAbstractionStarter]: At program point L15-3(lines 15 22) the Hoare annotation is: true [2018-11-12 20:30:28,025 INFO L421 ceAbstractionStarter]: At program point L15-4(lines 15 22) the Hoare annotation is: (or (= main_~x2~0 (* 4294967296 (div main_~x2~0 4294967296))) (= main_~x3~0 (* 4294967296 (div main_~x3~0 4294967296))) (= main_~x1~0 (* 4294967296 (div main_~x1~0 4294967296)))) [2018-11-12 20:30:28,025 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 25) the Hoare annotation is: true [2018-11-12 20:30:28,025 INFO L425 ceAbstractionStarter]: For program point L18(lines 18 19) no Hoare annotation was computed. [2018-11-12 20:30:28,025 INFO L425 ceAbstractionStarter]: For program point L18-2(lines 17 19) no Hoare annotation was computed. [2018-11-12 20:30:28,025 INFO L425 ceAbstractionStarter]: For program point L3-2(lines 2 7) no Hoare annotation was computed. [2018-11-12 20:30:28,026 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 2 7) the Hoare annotation is: true [2018-11-12 20:30:28,028 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2018-11-12 20:30:28,029 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 2 7) no Hoare annotation was computed. [2018-11-12 20:30:28,029 INFO L425 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2018-11-12 20:30:28,029 INFO L425 ceAbstractionStarter]: For program point L3(lines 3 5) no Hoare annotation was computed. [2018-11-12 20:30:28,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 08:30:28 BoogieIcfgContainer [2018-11-12 20:30:28,038 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 20:30:28,039 INFO L168 Benchmark]: Toolchain (without parser) took 1767.44 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 759.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -772.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-11-12 20:30:28,043 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-12 20:30:28,044 INFO L168 Benchmark]: CACSL2BoogieTranslator took 311.80 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-11-12 20:30:28,046 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.54 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-12 20:30:28,046 INFO L168 Benchmark]: Boogie Preprocessor took 21.98 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-12 20:30:28,048 INFO L168 Benchmark]: RCFGBuilder took 414.24 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 759.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -812.8 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. [2018-11-12 20:30:28,049 INFO L168 Benchmark]: TraceAbstraction took 992.35 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 30.1 MB). Peak memory consumption was 30.1 MB. Max. memory is 7.1 GB. [2018-11-12 20:30:28,058 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 311.80 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 21.54 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 21.98 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 414.24 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 759.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -812.8 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 992.35 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 30.1 MB). Peak memory consumption was 30.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. SAFE Result, 0.9s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 38 SDtfs, 1 SDslu, 35 SDs, 0 SdLazy, 7 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 8 PreInvPairs, 9 NumberOfFragments, 28 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 431 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...