java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/matrix_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8c3fbe1 [2018-10-22 15:36:51,885 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-22 15:36:51,886 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-22 15:36:51,901 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-22 15:36:51,901 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-22 15:36:51,903 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-22 15:36:51,904 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-22 15:36:51,906 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-22 15:36:51,907 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-22 15:36:51,908 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-22 15:36:51,909 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-22 15:36:51,909 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-22 15:36:51,910 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-22 15:36:51,911 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-22 15:36:51,913 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-22 15:36:51,913 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-22 15:36:51,914 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-22 15:36:51,916 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-22 15:36:51,918 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-22 15:36:51,920 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-22 15:36:51,921 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-22 15:36:51,922 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-22 15:36:51,925 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-22 15:36:51,925 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-22 15:36:51,925 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-22 15:36:51,926 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-22 15:36:51,927 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-22 15:36:51,928 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-22 15:36:51,929 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-22 15:36:51,930 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-22 15:36:51,930 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-22 15:36:51,931 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-22 15:36:51,931 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-22 15:36:51,931 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-22 15:36:51,932 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-22 15:36:51,933 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-22 15:36:51,934 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-22 15:36:51,948 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-22 15:36:51,949 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-22 15:36:51,949 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-22 15:36:51,950 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-22 15:36:51,950 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-22 15:36:51,950 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-22 15:36:51,951 INFO L133 SettingsManager]: * Use SBE=true [2018-10-22 15:36:51,951 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-22 15:36:51,951 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-22 15:36:51,951 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-22 15:36:51,952 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-22 15:36:51,952 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-22 15:36:51,952 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-22 15:36:51,952 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-22 15:36:51,952 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-22 15:36:51,953 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-22 15:36:51,953 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-22 15:36:51,953 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-22 15:36:51,953 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-22 15:36:51,953 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-22 15:36:51,954 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-22 15:36:51,954 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-22 15:36:51,954 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-22 15:36:51,954 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-22 15:36:51,954 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-22 15:36:51,955 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-22 15:36:51,955 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-22 15:36:51,955 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-22 15:36:52,000 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-22 15:36:52,014 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-22 15:36:52,019 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-22 15:36:52,021 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-22 15:36:52,021 INFO L276 PluginConnector]: CDTParser initialized [2018-10-22 15:36:52,022 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loops/matrix_true-unreach-call_true-termination.i [2018-10-22 15:36:52,088 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/41e4cdefc/1504d2fa5ab14d6a924c6e73d90876c7/FLAGd9127ac13 [2018-10-22 15:36:52,507 INFO L298 CDTParser]: Found 1 translation units. [2018-10-22 15:36:52,507 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/matrix_true-unreach-call_true-termination.i [2018-10-22 15:36:52,514 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/41e4cdefc/1504d2fa5ab14d6a924c6e73d90876c7/FLAGd9127ac13 [2018-10-22 15:36:52,532 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/41e4cdefc/1504d2fa5ab14d6a924c6e73d90876c7 [2018-10-22 15:36:52,541 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-22 15:36:52,543 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-22 15:36:52,544 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-22 15:36:52,549 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-22 15:36:52,552 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-22 15:36:52,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 03:36:52" (1/1) ... [2018-10-22 15:36:52,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2af25a96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:36:52, skipping insertion in model container [2018-10-22 15:36:52,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 03:36:52" (1/1) ... [2018-10-22 15:36:52,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-22 15:36:52,589 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-22 15:36:52,770 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 15:36:52,774 INFO L189 MainTranslator]: Completed pre-run [2018-10-22 15:36:52,798 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 15:36:52,819 INFO L193 MainTranslator]: Completed translation [2018-10-22 15:36:52,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:36:52 WrapperNode [2018-10-22 15:36:52,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-22 15:36:52,821 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-22 15:36:52,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-22 15:36:52,822 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-22 15:36:52,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:36:52" (1/1) ... [2018-10-22 15:36:52,841 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:36:52" (1/1) ... [2018-10-22 15:36:52,865 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-22 15:36:52,866 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-22 15:36:52,866 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-22 15:36:52,866 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-22 15:36:52,877 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:36:52" (1/1) ... [2018-10-22 15:36:52,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:36:52" (1/1) ... [2018-10-22 15:36:52,880 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:36:52" (1/1) ... [2018-10-22 15:36:52,880 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:36:52" (1/1) ... [2018-10-22 15:36:52,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:36:52" (1/1) ... [2018-10-22 15:36:52,890 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:36:52" (1/1) ... [2018-10-22 15:36:52,892 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:36:52" (1/1) ... [2018-10-22 15:36:52,894 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-22 15:36:52,894 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-22 15:36:52,894 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-22 15:36:52,895 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-22 15:36:52,896 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:36:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-22 15:36:53,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-22 15:36:53,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-22 15:36:53,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-10-22 15:36:53,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-10-22 15:36:53,471 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-22 15:36:53,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 03:36:53 BoogieIcfgContainer [2018-10-22 15:36:53,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-22 15:36:53,473 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-22 15:36:53,473 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-22 15:36:53,476 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-22 15:36:53,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 03:36:52" (1/3) ... [2018-10-22 15:36:53,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19bd67b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 03:36:53, skipping insertion in model container [2018-10-22 15:36:53,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:36:52" (2/3) ... [2018-10-22 15:36:53,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19bd67b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 03:36:53, skipping insertion in model container [2018-10-22 15:36:53,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 03:36:53" (3/3) ... [2018-10-22 15:36:53,480 INFO L112 eAbstractionObserver]: Analyzing ICFG matrix_true-unreach-call_true-termination.i [2018-10-22 15:36:53,490 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-22 15:36:53,499 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-22 15:36:53,517 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-22 15:36:53,552 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-22 15:36:53,553 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-22 15:36:53,553 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-22 15:36:53,553 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-22 15:36:53,553 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-22 15:36:53,553 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-22 15:36:53,554 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-22 15:36:53,554 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-22 15:36:53,554 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-22 15:36:53,570 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-10-22 15:36:53,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-22 15:36:53,577 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:36:53,578 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:36:53,580 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:36:53,587 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:36:53,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1834486276, now seen corresponding path program 1 times [2018-10-22 15:36:53,590 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:36:53,590 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:36:53,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:36:53,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:36:53,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:36:53,683 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-22 15:36:53,683 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-22 15:36:53,683 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-22 15:36:53,707 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:36:53,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:36:53,759 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:36:53,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:36:53,808 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 15:36:53,808 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-22 15:36:53,812 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-22 15:36:53,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-22 15:36:53,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-22 15:36:53,832 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2018-10-22 15:36:53,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:36:53,854 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2018-10-22 15:36:53,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-22 15:36:53,857 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2018-10-22 15:36:53,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:36:53,879 INFO L225 Difference]: With dead ends: 44 [2018-10-22 15:36:53,879 INFO L226 Difference]: Without dead ends: 17 [2018-10-22 15:36:53,883 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-22 15:36:53,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-10-22 15:36:53,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-10-22 15:36:53,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-10-22 15:36:53,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2018-10-22 15:36:53,920 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 7 [2018-10-22 15:36:53,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:36:53,921 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2018-10-22 15:36:53,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-22 15:36:53,921 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-10-22 15:36:53,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-22 15:36:53,921 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:36:53,922 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:36:53,922 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:36:53,922 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:36:53,923 INFO L82 PathProgramCache]: Analyzing trace with hash 148810377, now seen corresponding path program 1 times [2018-10-22 15:36:53,923 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:36:53,923 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:36:53,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:36:53,924 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:36:53,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:36:53,928 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-22 15:36:53,928 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-22 15:36:53,929 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-22 15:36:53,946 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:36:53,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:36:53,978 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:36:54,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:36:54,048 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 15:36:54,048 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-22 15:36:54,049 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-22 15:36:54,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-22 15:36:54,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-22 15:36:54,050 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 3 states. [2018-10-22 15:36:54,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:36:54,124 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2018-10-22 15:36:54,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-22 15:36:54,126 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-10-22 15:36:54,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:36:54,126 INFO L225 Difference]: With dead ends: 32 [2018-10-22 15:36:54,127 INFO L226 Difference]: Without dead ends: 27 [2018-10-22 15:36:54,127 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-22 15:36:54,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-10-22 15:36:54,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 19. [2018-10-22 15:36:54,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-10-22 15:36:54,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-10-22 15:36:54,132 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 8 [2018-10-22 15:36:54,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:36:54,133 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-10-22 15:36:54,133 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-22 15:36:54,133 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-10-22 15:36:54,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-22 15:36:54,134 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:36:54,134 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:36:54,134 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:36:54,135 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:36:54,135 INFO L82 PathProgramCache]: Analyzing trace with hash -50434659, now seen corresponding path program 1 times [2018-10-22 15:36:54,135 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:36:54,135 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:36:54,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:36:54,136 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:36:54,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:36:54,140 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-22 15:36:54,141 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-22 15:36:54,141 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-22 15:36:54,159 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:36:54,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:36:54,190 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:36:54,376 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:36:54,407 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 15:36:54,407 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-22 15:36:54,408 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-22 15:36:54,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-22 15:36:54,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-22 15:36:54,409 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 4 states. [2018-10-22 15:36:54,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:36:54,721 INFO L93 Difference]: Finished difference Result 49 states and 57 transitions. [2018-10-22 15:36:54,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-22 15:36:54,722 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-10-22 15:36:54,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:36:54,723 INFO L225 Difference]: With dead ends: 49 [2018-10-22 15:36:54,723 INFO L226 Difference]: Without dead ends: 34 [2018-10-22 15:36:54,724 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-22 15:36:54,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-10-22 15:36:54,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 21. [2018-10-22 15:36:54,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-10-22 15:36:54,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2018-10-22 15:36:54,732 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 13 [2018-10-22 15:36:54,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:36:54,732 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2018-10-22 15:36:54,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-22 15:36:54,732 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-10-22 15:36:54,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-22 15:36:54,733 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:36:54,733 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:36:54,734 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:36:54,734 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:36:54,734 INFO L82 PathProgramCache]: Analyzing trace with hash 226287643, now seen corresponding path program 1 times [2018-10-22 15:36:54,734 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:36:54,734 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:36:54,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:36:54,736 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:36:54,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:36:54,740 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-22 15:36:54,740 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-22 15:36:54,740 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-22 15:36:54,750 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:36:54,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:36:54,777 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:36:54,949 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-10-22 15:36:54,953 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2018-10-22 15:36:54,954 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-22 15:36:54,964 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-22 15:36:54,986 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-22 15:36:54,987 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2018-10-22 15:36:55,099 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:36:55,120 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-22 15:36:55,121 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-10-22 15:36:55,121 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-22 15:36:55,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-22 15:36:55,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-10-22 15:36:55,122 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 8 states. [2018-10-22 15:36:55,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:36:55,796 INFO L93 Difference]: Finished difference Result 48 states and 55 transitions. [2018-10-22 15:36:55,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-22 15:36:55,796 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2018-10-22 15:36:55,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:36:55,797 INFO L225 Difference]: With dead ends: 48 [2018-10-22 15:36:55,798 INFO L226 Difference]: Without dead ends: 43 [2018-10-22 15:36:55,799 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2018-10-22 15:36:55,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-10-22 15:36:55,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 29. [2018-10-22 15:36:55,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-10-22 15:36:55,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2018-10-22 15:36:55,806 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 18 [2018-10-22 15:36:55,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:36:55,806 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2018-10-22 15:36:55,806 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-22 15:36:55,806 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2018-10-22 15:36:55,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-22 15:36:55,807 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:36:55,808 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:36:55,808 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:36:55,808 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:36:55,808 INFO L82 PathProgramCache]: Analyzing trace with hash 1782046456, now seen corresponding path program 1 times [2018-10-22 15:36:55,808 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:36:55,809 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:36:55,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:36:55,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:36:55,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:36:55,814 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-22 15:36:55,814 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-22 15:36:55,814 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-22 15:36:55,829 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:36:55,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:36:55,852 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:36:56,015 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-10-22 15:36:56,018 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-10-22 15:36:56,019 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-22 15:36:56,021 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-22 15:36:56,026 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-22 15:36:56,026 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2018-10-22 15:36:56,056 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:36:56,077 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-22 15:36:56,077 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-10-22 15:36:56,077 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-22 15:36:56,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-22 15:36:56,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-10-22 15:36:56,078 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 8 states. [2018-10-22 15:36:56,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:36:56,395 INFO L93 Difference]: Finished difference Result 56 states and 65 transitions. [2018-10-22 15:36:56,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-22 15:36:56,395 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2018-10-22 15:36:56,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:36:56,396 INFO L225 Difference]: With dead ends: 56 [2018-10-22 15:36:56,396 INFO L226 Difference]: Without dead ends: 51 [2018-10-22 15:36:56,399 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2018-10-22 15:36:56,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-10-22 15:36:56,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 31. [2018-10-22 15:36:56,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-10-22 15:36:56,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2018-10-22 15:36:56,404 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 20 [2018-10-22 15:36:56,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:36:56,405 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2018-10-22 15:36:56,405 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-22 15:36:56,405 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2018-10-22 15:36:56,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-22 15:36:56,406 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:36:56,406 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:36:56,407 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:36:56,407 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:36:56,407 INFO L82 PathProgramCache]: Analyzing trace with hash -80196515, now seen corresponding path program 2 times [2018-10-22 15:36:56,407 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:36:56,407 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:36:56,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:36:56,409 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:36:56,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:36:56,412 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-22 15:36:56,412 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-22 15:36:56,412 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-22 15:36:56,424 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-22 15:36:56,446 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-22 15:36:56,446 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-22 15:36:56,448 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:36:56,508 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:36:56,536 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-22 15:36:56,536 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-10-22 15:36:56,536 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-22 15:36:56,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-22 15:36:56,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-22 15:36:56,537 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 5 states. [2018-10-22 15:36:56,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:36:56,574 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2018-10-22 15:36:56,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-22 15:36:56,577 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2018-10-22 15:36:56,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:36:56,578 INFO L225 Difference]: With dead ends: 55 [2018-10-22 15:36:56,578 INFO L226 Difference]: Without dead ends: 35 [2018-10-22 15:36:56,579 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-22 15:36:56,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-10-22 15:36:56,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2018-10-22 15:36:56,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-10-22 15:36:56,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2018-10-22 15:36:56,584 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 23 [2018-10-22 15:36:56,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:36:56,585 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2018-10-22 15:36:56,585 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-22 15:36:56,585 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2018-10-22 15:36:56,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-10-22 15:36:56,586 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:36:56,586 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:36:56,586 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:36:56,586 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:36:56,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1475688659, now seen corresponding path program 3 times [2018-10-22 15:36:56,587 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:36:56,587 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:36:56,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:36:56,588 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-22 15:36:56,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:36:56,591 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-22 15:36:56,592 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-22 15:36:56,592 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-22 15:36:56,601 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-10-22 15:36:56,623 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-10-22 15:36:56,623 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-22 15:36:56,626 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:36:56,663 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-22 15:36:56,684 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-22 15:36:56,684 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2018-10-22 15:36:56,685 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-22 15:36:56,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-22 15:36:56,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-22 15:36:56,685 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand 4 states. [2018-10-22 15:36:56,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:36:56,733 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2018-10-22 15:36:56,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-22 15:36:56,734 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2018-10-22 15:36:56,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:36:56,734 INFO L225 Difference]: With dead ends: 33 [2018-10-22 15:36:56,734 INFO L226 Difference]: Without dead ends: 0 [2018-10-22 15:36:56,735 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-22 15:36:56,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-22 15:36:56,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-22 15:36:56,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-22 15:36:56,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-22 15:36:56,736 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2018-10-22 15:36:56,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:36:56,736 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-22 15:36:56,736 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-22 15:36:56,736 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-22 15:36:56,736 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-22 15:36:56,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-22 15:36:56,945 INFO L425 ceAbstractionStarter]: For program point L19-1(lines 19 26) no Hoare annotation was computed. [2018-10-22 15:36:56,946 INFO L425 ceAbstractionStarter]: For program point L19-3(lines 19 26) no Hoare annotation was computed. [2018-10-22 15:36:56,946 INFO L421 ceAbstractionStarter]: At program point L19-4(lines 19 26) the Hoare annotation is: (let ((.cse0 (= 1 ULTIMATE.start_main_~N_LIN~0)) (.cse1 (= 1 ULTIMATE.start_main_~N_COL~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_main_~j~0 0)) (and .cse0 (<= (select (select |#memory_int| |ULTIMATE.start_main_~#matriz~0.base|) |ULTIMATE.start_main_~#matriz~0.offset|) ULTIMATE.start_main_~maior~0) .cse1 (= ULTIMATE.start_main_~j~0 1) (= ULTIMATE.start_main_~k~0 1)))) [2018-10-22 15:36:56,946 INFO L425 ceAbstractionStarter]: For program point L19-5(lines 19 26) no Hoare annotation was computed. [2018-10-22 15:36:56,947 INFO L425 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-10-22 15:36:56,947 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-10-22 15:36:56,947 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-22 15:36:56,947 INFO L425 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-10-22 15:36:56,947 INFO L425 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-10-22 15:36:56,947 INFO L425 ceAbstractionStarter]: For program point L24-1(lines 24 25) no Hoare annotation was computed. [2018-10-22 15:36:56,947 INFO L425 ceAbstractionStarter]: For program point L20-1(lines 20 26) no Hoare annotation was computed. [2018-10-22 15:36:56,948 INFO L425 ceAbstractionStarter]: For program point L20-3(lines 20 26) no Hoare annotation was computed. [2018-10-22 15:36:56,948 INFO L421 ceAbstractionStarter]: At program point L20-4(lines 20 26) the Hoare annotation is: (let ((.cse0 (= 1 ULTIMATE.start_main_~N_LIN~0)) (.cse1 (= 1 ULTIMATE.start_main_~N_COL~0)) (.cse2 (= ULTIMATE.start_main_~j~0 0))) (or (and .cse0 .cse1 (= ULTIMATE.start_main_~k~0 0) .cse2) (and .cse0 .cse1 (<= (select (select |#memory_int| |ULTIMATE.start_main_~#matriz~0.base|) |ULTIMATE.start_main_~#matriz~0.offset|) ULTIMATE.start_main_~maior~0) (= ULTIMATE.start_main_~k~0 1) .cse2))) [2018-10-22 15:36:56,948 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-22 15:36:56,948 INFO L425 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2018-10-22 15:36:56,948 INFO L425 ceAbstractionStarter]: For program point L16-1(line 16) no Hoare annotation was computed. [2018-10-22 15:36:56,949 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-22 15:36:56,949 INFO L428 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: true [2018-10-22 15:36:56,949 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-22 15:36:56,949 INFO L425 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-10-22 15:36:56,949 INFO L425 ceAbstractionStarter]: For program point L25-1(line 25) no Hoare annotation was computed. [2018-10-22 15:36:56,949 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-22 15:36:56,949 INFO L428 ceAbstractionStarter]: At program point L30(lines 11 31) the Hoare annotation is: true [2018-10-22 15:36:56,957 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-22 15:36:56,963 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-22 15:36:56,965 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-22 15:36:56,966 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-22 15:36:56,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 03:36:56 BoogieIcfgContainer [2018-10-22 15:36:56,968 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-22 15:36:56,969 INFO L168 Benchmark]: Toolchain (without parser) took 4426.71 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 786.4 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -585.3 MB). Peak memory consumption was 201.1 MB. Max. memory is 7.1 GB. [2018-10-22 15:36:56,970 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-10-22 15:36:56,971 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.52 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. [2018-10-22 15:36:56,972 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.43 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. [2018-10-22 15:36:56,973 INFO L168 Benchmark]: Boogie Preprocessor took 27.94 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. [2018-10-22 15:36:56,973 INFO L168 Benchmark]: RCFGBuilder took 577.62 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 786.4 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -831.7 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2018-10-22 15:36:56,974 INFO L168 Benchmark]: TraceAbstraction took 3495.17 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 235.8 MB). Peak memory consumption was 235.8 MB. Max. memory is 7.1 GB. [2018-10-22 15:36:56,979 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 276.52 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 44.43 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 27.94 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 577.62 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 786.4 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -831.7 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3495.17 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 235.8 MB). Peak memory consumption was 235.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 19]: Loop Invariant [2018-10-22 15:36:56,986 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-22 15:36:56,987 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((1 == N_LIN && 1 == N_COL) && j == 0) || ((((1 == N_LIN && unknown-#memory_int-unknown[matriz][matriz] <= maior) && 1 == N_COL) && j == 1) && k == 1) - InvariantResult [Line: 20]: Loop Invariant [2018-10-22 15:36:56,988 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-22 15:36:56,988 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((1 == N_LIN && 1 == N_COL) && k == 0) && j == 0) || ((((1 == N_LIN && 1 == N_COL) && unknown-#memory_int-unknown[matriz][matriz] <= maior) && k == 1) && j == 0) - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 1 error locations. SAFE Result, 3.4s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 1.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 101 SDtfs, 109 SDslu, 170 SDs, 0 SdLazy, 248 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=6, 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, 7 MinimizatonAttempts, 57 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 10 NumberOfFragments, 67 HoareAnnotationTreeSize, 4 FomulaSimplifications, 65 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 30 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 117 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 9598 SizeOfPredicates, 36 NumberOfNonLiveVariables, 433 ConjunctsInSsa, 74 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 31/43 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...