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/array_false-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 21:57:57,778 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 21:57:57,780 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 21:57:57,792 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 21:57:57,792 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 21:57:57,793 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 21:57:57,794 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 21:57:57,796 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 21:57:57,798 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 21:57:57,799 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 21:57:57,800 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 21:57:57,800 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 21:57:57,801 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 21:57:57,802 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 21:57:57,803 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 21:57:57,804 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 21:57:57,805 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 21:57:57,807 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 21:57:57,809 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 21:57:57,811 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 21:57:57,812 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 21:57:57,813 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 21:57:57,815 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 21:57:57,816 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 21:57:57,816 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 21:57:57,817 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 21:57:57,818 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 21:57:57,819 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 21:57:57,820 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 21:57:57,821 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 21:57:57,821 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 21:57:57,822 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 21:57:57,822 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 21:57:57,822 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 21:57:57,823 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 21:57:57,824 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 21:57:57,824 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 [2018-11-07 21:57:57,840 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 21:57:57,840 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 21:57:57,841 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 21:57:57,841 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 21:57:57,842 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 21:57:57,842 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 21:57:57,842 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 21:57:57,842 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 21:57:57,843 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 21:57:57,843 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 21:57:57,843 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 21:57:57,843 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 21:57:57,843 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 21:57:57,844 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 21:57:57,844 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 21:57:57,844 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 21:57:57,845 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 21:57:57,845 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 21:57:57,845 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 21:57:57,845 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 21:57:57,846 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 21:57:57,846 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 21:57:57,846 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 21:57:57,846 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 21:57:57,846 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 21:57:57,847 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 21:57:57,847 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 21:57:57,847 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 21:57:57,847 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 21:57:57,847 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 21:57:57,848 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 21:57:57,848 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 21:57:57,848 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 21:57:57,848 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 21:57:57,849 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 21:57:57,916 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 21:57:57,936 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 21:57:57,940 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 21:57:57,942 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 21:57:57,942 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 21:57:57,943 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/array_false-unreach-call_true-termination.i [2018-11-07 21:57:58,009 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4c11d6db/a6581b51303b4eb7b4bc8a405e5302a3/FLAG3ee2e706a [2018-11-07 21:57:58,430 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 21:57:58,431 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/array_false-unreach-call_true-termination.i [2018-11-07 21:57:58,438 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4c11d6db/a6581b51303b4eb7b4bc8a405e5302a3/FLAG3ee2e706a [2018-11-07 21:57:58,458 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4c11d6db/a6581b51303b4eb7b4bc8a405e5302a3 [2018-11-07 21:57:58,469 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 21:57:58,471 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 21:57:58,472 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 21:57:58,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 21:57:58,480 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 21:57:58,481 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:57:58" (1/1) ... [2018-11-07 21:57:58,484 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a721c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:57:58, skipping insertion in model container [2018-11-07 21:57:58,484 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:57:58" (1/1) ... [2018-11-07 21:57:58,495 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 21:57:58,523 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 21:57:58,764 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 21:57:58,770 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 21:57:58,799 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 21:57:58,822 INFO L193 MainTranslator]: Completed translation [2018-11-07 21:57:58,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:57:58 WrapperNode [2018-11-07 21:57:58,823 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 21:57:58,824 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 21:57:58,824 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 21:57:58,824 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 21:57:58,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:57:58" (1/1) ... [2018-11-07 21:57:58,840 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:57:58" (1/1) ... [2018-11-07 21:57:58,847 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 21:57:58,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 21:57:58,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 21:57:58,847 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 21:57:58,855 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:57:58" (1/1) ... [2018-11-07 21:57:58,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:57:58" (1/1) ... [2018-11-07 21:57:58,857 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:57:58" (1/1) ... [2018-11-07 21:57:58,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:57:58" (1/1) ... [2018-11-07 21:57:58,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:57:58" (1/1) ... [2018-11-07 21:57:58,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:57:58" (1/1) ... [2018-11-07 21:57:58,881 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:57:58" (1/1) ... [2018-11-07 21:57:58,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 21:57:58,883 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 21:57:58,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 21:57:58,884 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 21:57:58,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:57:58" (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 [2018-11-07 21:57:59,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-07 21:57:59,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 21:57:59,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 21:57:59,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-07 21:57:59,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 21:57:59,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 21:57:59,007 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 21:57:59,007 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 21:57:59,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-07 21:57:59,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-07 21:57:59,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-07 21:57:59,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-07 21:57:59,383 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 21:57:59,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:57:59 BoogieIcfgContainer [2018-11-07 21:57:59,383 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 21:57:59,384 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 21:57:59,384 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 21:57:59,388 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 21:57:59,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 09:57:58" (1/3) ... [2018-11-07 21:57:59,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4279b86b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:57:59, skipping insertion in model container [2018-11-07 21:57:59,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:57:58" (2/3) ... [2018-11-07 21:57:59,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4279b86b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:57:59, skipping insertion in model container [2018-11-07 21:57:59,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:57:59" (3/3) ... [2018-11-07 21:57:59,391 INFO L112 eAbstractionObserver]: Analyzing ICFG array_false-unreach-call_true-termination.i [2018-11-07 21:57:59,401 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 21:57:59,410 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 21:57:59,426 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 21:57:59,459 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 21:57:59,460 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 21:57:59,460 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 21:57:59,460 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 21:57:59,460 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 21:57:59,460 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 21:57:59,461 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 21:57:59,461 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 21:57:59,480 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2018-11-07 21:57:59,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-07 21:57:59,487 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:57:59,488 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 21:57:59,492 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:57:59,498 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:57:59,498 INFO L82 PathProgramCache]: Analyzing trace with hash 1480781609, now seen corresponding path program 1 times [2018-11-07 21:57:59,501 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:57:59,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:57:59,546 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:57:59,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:57:59,546 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:57:59,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:57:59,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:57:59,641 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:57:59,641 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-07 21:57:59,641 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:57:59,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-07 21:57:59,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-07 21:57:59,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-07 21:57:59,665 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2018-11-07 21:57:59,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:57:59,695 INFO L93 Difference]: Finished difference Result 47 states and 51 transitions. [2018-11-07 21:57:59,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-07 21:57:59,697 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-11-07 21:57:59,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:57:59,706 INFO L225 Difference]: With dead ends: 47 [2018-11-07 21:57:59,706 INFO L226 Difference]: Without dead ends: 23 [2018-11-07 21:57:59,709 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 [2018-11-07 21:57:59,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-07 21:57:59,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-11-07 21:57:59,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-07 21:57:59,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2018-11-07 21:57:59,749 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 14 [2018-11-07 21:57:59,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:57:59,750 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2018-11-07 21:57:59,750 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-07 21:57:59,750 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2018-11-07 21:57:59,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-07 21:57:59,751 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:57:59,751 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 21:57:59,751 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:57:59,752 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:57:59,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1557385828, now seen corresponding path program 1 times [2018-11-07 21:57:59,752 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:57:59,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:57:59,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:57:59,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:57:59,754 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:57:59,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:57:59,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:57:59,965 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:57:59,965 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 21:57:59,965 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:57:59,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 21:57:59,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 21:57:59,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-07 21:57:59,967 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 5 states. [2018-11-07 21:58:00,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:58:00,132 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2018-11-07 21:58:00,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 21:58:00,133 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-11-07 21:58:00,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:58:00,134 INFO L225 Difference]: With dead ends: 38 [2018-11-07 21:58:00,134 INFO L226 Difference]: Without dead ends: 32 [2018-11-07 21:58:00,136 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-11-07 21:58:00,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-07 21:58:00,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 25. [2018-11-07 21:58:00,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-07 21:58:00,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2018-11-07 21:58:00,143 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 15 [2018-11-07 21:58:00,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:58:00,144 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2018-11-07 21:58:00,144 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 21:58:00,144 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2018-11-07 21:58:00,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-07 21:58:00,145 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:58:00,145 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 21:58:00,145 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:58:00,145 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:58:00,146 INFO L82 PathProgramCache]: Analyzing trace with hash 465825685, now seen corresponding path program 1 times [2018-11-07 21:58:00,146 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:58:00,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:58:00,148 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:58:00,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:58:00,151 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:58:00,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:58:00,844 WARN L179 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 19 [2018-11-07 21:58:01,172 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:58:01,173 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:58:01,174 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 21:58:01,175 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 23 with the following transitions: [2018-11-07 21:58:01,177 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [6], [7], [11], [14], [16], [17], [18], [19], [26], [28], [32], [38], [41], [43], [49], [50], [51], [53] [2018-11-07 21:58:01,207 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 21:58:01,207 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 21:58:01,341 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 21:58:01,374 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 21:58:01,376 INFO L272 AbstractInterpreter]: Visited 21 different actions 24 times. Merged at 2 different actions 2 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 21 variables. [2018-11-07 21:58:01,382 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:58:01,383 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 21:58:01,383 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:58:01,383 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 21:58:01,396 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:58:01,396 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 21:58:01,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:58:01,446 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 21:58:01,529 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 14 [2018-11-07 21:58:01,534 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2018-11-07 21:58:01,535 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-07 21:58:01,540 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-07 21:58:01,549 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-07 21:58:01,549 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:3 [2018-11-07 21:58:01,605 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 [2018-11-07 21:58:01,609 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 [2018-11-07 21:58:01,610 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-07 21:58:01,632 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-07 21:58:01,634 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-07 21:58:01,635 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2018-11-07 21:58:01,651 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:58:01,651 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 21:58:02,191 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 18 treesize of output 16 [2018-11-07 21:58:02,220 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 7 treesize of output 5 [2018-11-07 21:58:02,221 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-07 21:58:02,222 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-07 21:58:02,224 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-07 21:58:02,224 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:18, output treesize:7 [2018-11-07 21:58:02,244 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:58:02,273 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 21:58:02,273 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 9] total 17 [2018-11-07 21:58:02,273 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 21:58:02,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-07 21:58:02,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-07 21:58:02,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2018-11-07 21:58:02,275 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 13 states. [2018-11-07 21:58:02,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:58:02,472 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2018-11-07 21:58:02,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 21:58:02,473 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 22 [2018-11-07 21:58:02,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:58:02,474 INFO L225 Difference]: With dead ends: 42 [2018-11-07 21:58:02,474 INFO L226 Difference]: Without dead ends: 36 [2018-11-07 21:58:02,475 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 34 SyntacticMatches, 6 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2018-11-07 21:58:02,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-07 21:58:02,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32. [2018-11-07 21:58:02,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-07 21:58:02,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2018-11-07 21:58:02,482 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 22 [2018-11-07 21:58:02,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:58:02,482 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2018-11-07 21:58:02,482 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-07 21:58:02,482 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2018-11-07 21:58:02,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-07 21:58:02,483 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:58:02,483 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 21:58:02,484 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:58:02,484 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:58:02,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1114672590, now seen corresponding path program 1 times [2018-11-07 21:58:02,484 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:58:02,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:58:02,485 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:58:02,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:58:02,486 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:58:02,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-07 21:58:02,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-07 21:58:02,549 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-07 21:58:02,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 09:58:02 BoogieIcfgContainer [2018-11-07 21:58:02,582 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 21:58:02,582 INFO L168 Benchmark]: Toolchain (without parser) took 4112.65 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 709.9 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -594.0 MB). Peak memory consumption was 115.9 MB. Max. memory is 7.1 GB. [2018-11-07 21:58:02,584 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-11-07 21:58:02,584 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.94 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. [2018-11-07 21:58:02,585 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.90 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. [2018-11-07 21:58:02,586 INFO L168 Benchmark]: Boogie Preprocessor took 35.98 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. [2018-11-07 21:58:02,586 INFO L168 Benchmark]: RCFGBuilder took 500.14 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 709.9 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -754.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 7.1 GB. [2018-11-07 21:58:02,587 INFO L168 Benchmark]: TraceAbstraction took 3197.33 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 150.4 MB). Peak memory consumption was 150.4 MB. Max. memory is 7.1 GB. [2018-11-07 21:58:02,591 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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. * CACSL2BoogieTranslator took 350.94 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 22.90 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 35.98 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 500.14 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 709.9 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -754.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3197.33 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 150.4 MB). Peak memory consumption was 150.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L13] unsigned int SIZE=1; [L14] unsigned int j,k; VAL [SIZE=1] [L15] FCALL int array[SIZE], menor; [L17] menor = __VERIFIER_nondet_int() [L19] j=0 VAL [array={6:0}, j=0, menor=0, SIZE=1] [L19] COND TRUE jmenor) VAL [\old(cond)=0] [L4] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L5] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 32 locations, 1 error locations. UNSAFE Result, 3.1s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 67 SDtfs, 66 SDslu, 122 SDs, 0 SdLazy, 102 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 38 SyntacticMatches, 6 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 8072 SizeOfPredicates, 12 NumberOfNonLiveVariables, 66 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...