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 --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-new/nested_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 17:20:31,891 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 17:20:31,894 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 17:20:31,906 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 17:20:31,907 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 17:20:31,908 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 17:20:31,909 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 17:20:31,912 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 17:20:31,913 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 17:20:31,914 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 17:20:31,915 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 17:20:31,916 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 17:20:31,917 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 17:20:31,918 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 17:20:31,919 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 17:20:31,920 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 17:20:31,921 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 17:20:31,923 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 17:20:31,925 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 17:20:31,927 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 17:20:31,928 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 17:20:31,929 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 17:20:31,932 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-15 17:20:31,942 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-09-15 17:20:31,957 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 17:20:31,957 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 17:20:31,958 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 17:20:31,959 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 17:20:31,959 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 17:20:31,959 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 17:20:31,959 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-15 17:20:31,959 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 17:20:31,960 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-15 17:20:31,960 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 17:20:31,960 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 17:20:31,960 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 17:20:31,961 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 17:20:31,961 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 17:20:31,961 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 17:20:31,961 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 17:20:31,962 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 17:20:31,962 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 17:20:31,962 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 17:20:31,962 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 17:20:31,962 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 17:20:31,963 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 17:20:31,963 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 17:20:31,963 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 17:20:31,963 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 17:20:31,964 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 17:20:31,964 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 17:20:31,964 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 17:20:31,964 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 17:20:31,964 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 17:20:31,965 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 17:20:31,965 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 17:20:31,965 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 17:20:31,965 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 17:20:32,026 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 17:20:32,042 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 17:20:32,047 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 17:20:32,048 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 17:20:32,049 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 17:20:32,050 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/nested_true-unreach-call_true-termination.i [2018-09-15 17:20:32,430 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b13448873/1bf4284f1d6a4c3489a330d95d94d7bc/FLAG424a0155e [2018-09-15 17:20:32,592 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 17:20:32,593 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/nested_true-unreach-call_true-termination.i [2018-09-15 17:20:32,600 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b13448873/1bf4284f1d6a4c3489a330d95d94d7bc/FLAG424a0155e [2018-09-15 17:20:32,618 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b13448873/1bf4284f1d6a4c3489a330d95d94d7bc [2018-09-15 17:20:32,633 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 17:20:32,639 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 17:20:32,640 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 17:20:32,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 17:20:32,651 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 17:20:32,653 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 05:20:32" (1/1) ... [2018-09-15 17:20:32,656 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ddb7865 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:32, skipping insertion in model container [2018-09-15 17:20:32,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 05:20:32" (1/1) ... [2018-09-15 17:20:32,670 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 17:20:32,896 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 17:20:32,912 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 17:20:32,919 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 17:20:32,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:32 WrapperNode [2018-09-15 17:20:32,933 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 17:20:32,934 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 17:20:32,934 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 17:20:32,934 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 17:20:32,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:32" (1/1) ... [2018-09-15 17:20:32,951 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:32" (1/1) ... [2018-09-15 17:20:32,958 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 17:20:32,958 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 17:20:32,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 17:20:32,959 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 17:20:32,969 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:32" (1/1) ... [2018-09-15 17:20:32,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:32" (1/1) ... [2018-09-15 17:20:32,970 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:32" (1/1) ... [2018-09-15 17:20:32,971 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:32" (1/1) ... [2018-09-15 17:20:32,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:32" (1/1) ... [2018-09-15 17:20:32,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:32" (1/1) ... [2018-09-15 17:20:32,980 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:32" (1/1) ... [2018-09-15 17:20:32,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 17:20:32,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 17:20:32,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 17:20:32,982 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 17:20:32,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:32" (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 [2018-09-15 17:20:33,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 17:20:33,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 17:20:33,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 17:20:33,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 17:20:33,049 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 17:20:33,049 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 17:20:33,050 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-15 17:20:33,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-15 17:20:33,461 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 17:20:33,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 05:20:33 BoogieIcfgContainer [2018-09-15 17:20:33,462 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 17:20:33,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 17:20:33,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 17:20:33,466 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 17:20:33,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 05:20:32" (1/3) ... [2018-09-15 17:20:33,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a94a26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 05:20:33, skipping insertion in model container [2018-09-15 17:20:33,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:32" (2/3) ... [2018-09-15 17:20:33,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a94a26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 05:20:33, skipping insertion in model container [2018-09-15 17:20:33,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 05:20:33" (3/3) ... [2018-09-15 17:20:33,470 INFO L112 eAbstractionObserver]: Analyzing ICFG nested_true-unreach-call_true-termination.i [2018-09-15 17:20:33,481 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 17:20:33,490 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 17:20:33,542 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 17:20:33,543 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 17:20:33,543 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 17:20:33,543 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 17:20:33,543 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 17:20:33,543 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 17:20:33,543 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 17:20:33,543 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 17:20:33,544 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 17:20:33,561 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-09-15 17:20:33,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-15 17:20:33,569 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 17:20:33,570 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 17:20:33,571 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 17:20:33,576 INFO L82 PathProgramCache]: Analyzing trace with hash -702630595, now seen corresponding path program 1 times [2018-09-15 17:20:33,578 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 17:20:33,579 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 13 with the following transitions: [2018-09-15 17:20:33,581 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [38], [43], [46], [48], [54], [55], [56], [58] [2018-09-15 17:20:33,636 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 17:20:33,636 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 17:20:33,687 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 17:20:33,688 INFO L272 AbstractInterpreter]: Visited 8 different actions 8 times. Never merged. Never widened. Never found a fixpoint. Largest state had 7 variables. [2018-09-15 17:20:33,723 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 17:20:33,808 INFO L232 lantSequenceWeakener]: Weakened 2 states. On average, predicates are now at 54.17% of their original sizes. [2018-09-15 17:20:33,809 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 17:20:33,950 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 17:20:33,952 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 17:20:33,952 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-15 17:20:33,953 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 17:20:33,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-15 17:20:33,965 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-15 17:20:33,966 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-09-15 17:20:33,968 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 5 states. [2018-09-15 17:20:34,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 17:20:34,131 INFO L93 Difference]: Finished difference Result 52 states and 69 transitions. [2018-09-15 17:20:34,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-15 17:20:34,133 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2018-09-15 17:20:34,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 17:20:34,141 INFO L225 Difference]: With dead ends: 52 [2018-09-15 17:20:34,141 INFO L226 Difference]: Without dead ends: 24 [2018-09-15 17:20:34,145 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-09-15 17:20:34,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-09-15 17:20:34,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 18. [2018-09-15 17:20:34,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-09-15 17:20:34,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2018-09-15 17:20:34,180 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 12 [2018-09-15 17:20:34,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 17:20:34,181 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2018-09-15 17:20:34,181 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-15 17:20:34,181 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2018-09-15 17:20:34,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-15 17:20:34,182 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 17:20:34,182 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 17:20:34,183 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 17:20:34,183 INFO L82 PathProgramCache]: Analyzing trace with hash -972126638, now seen corresponding path program 1 times [2018-09-15 17:20:34,183 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 17:20:34,184 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 14 with the following transitions: [2018-09-15 17:20:34,184 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [19], [43], [46], [48], [54], [55], [56], [58] [2018-09-15 17:20:34,186 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 17:20:34,186 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 17:20:34,194 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 17:20:34,194 INFO L272 AbstractInterpreter]: Visited 9 different actions 9 times. Never merged. Never widened. Never found a fixpoint. Largest state had 7 variables. [2018-09-15 17:20:34,223 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 17:20:34,249 INFO L232 lantSequenceWeakener]: Weakened 2 states. On average, predicates are now at 25% of their original sizes. [2018-09-15 17:20:34,250 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 17:20:34,354 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 17:20:34,354 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 17:20:34,354 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-15 17:20:34,358 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 17:20:34,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-15 17:20:34,359 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-15 17:20:34,359 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-09-15 17:20:34,359 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 5 states. [2018-09-15 17:20:34,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 17:20:34,574 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2018-09-15 17:20:34,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-15 17:20:34,575 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-09-15 17:20:34,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 17:20:34,578 INFO L225 Difference]: With dead ends: 34 [2018-09-15 17:20:34,578 INFO L226 Difference]: Without dead ends: 29 [2018-09-15 17:20:34,582 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 17:20:34,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-09-15 17:20:34,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 20. [2018-09-15 17:20:34,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-09-15 17:20:34,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2018-09-15 17:20:34,589 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 13 [2018-09-15 17:20:34,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 17:20:34,589 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2018-09-15 17:20:34,590 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-15 17:20:34,590 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2018-09-15 17:20:34,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-15 17:20:34,590 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 17:20:34,591 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 17:20:34,591 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 17:20:34,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1998515670, now seen corresponding path program 1 times [2018-09-15 17:20:34,592 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 17:20:34,592 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 19 with the following transitions: [2018-09-15 17:20:34,592 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [19], [21], [25], [28], [36], [43], [46], [48], [54], [55], [56], [58] [2018-09-15 17:20:34,594 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 17:20:34,594 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 17:20:34,600 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 17:20:34,601 INFO L272 AbstractInterpreter]: Visited 12 different actions 12 times. Never merged. Never widened. Never found a fixpoint. Largest state had 8 variables. [2018-09-15 17:20:34,636 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 17:20:34,667 INFO L232 lantSequenceWeakener]: Weakened 2 states. On average, predicates are now at 25% of their original sizes. [2018-09-15 17:20:34,667 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 17:20:34,960 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 17:20:34,960 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 17:20:34,961 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-15 17:20:34,961 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 17:20:34,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-15 17:20:34,962 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-15 17:20:34,962 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-09-15 17:20:34,962 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 7 states. [2018-09-15 17:20:35,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 17:20:35,175 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2018-09-15 17:20:35,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 17:20:35,176 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2018-09-15 17:20:35,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 17:20:35,177 INFO L225 Difference]: With dead ends: 33 [2018-09-15 17:20:35,177 INFO L226 Difference]: Without dead ends: 22 [2018-09-15 17:20:35,178 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-09-15 17:20:35,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-09-15 17:20:35,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-09-15 17:20:35,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-09-15 17:20:35,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2018-09-15 17:20:35,185 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 18 [2018-09-15 17:20:35,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 17:20:35,185 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2018-09-15 17:20:35,185 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-15 17:20:35,185 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2018-09-15 17:20:35,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-15 17:20:35,186 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 17:20:35,187 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 17:20:35,187 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 17:20:35,187 INFO L82 PathProgramCache]: Analyzing trace with hash -1293803971, now seen corresponding path program 1 times [2018-09-15 17:20:35,187 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 17:20:35,188 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 22 with the following transitions: [2018-09-15 17:20:35,188 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [19], [21], [25], [28], [30], [32], [36], [43], [46], [48], [54], [55], [56], [58] [2018-09-15 17:20:35,190 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 17:20:35,190 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 17:20:35,508 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-15 17:20:35,508 INFO L272 AbstractInterpreter]: Visited 19 different actions 581 times. Merged at 8 different actions 350 times. Widened at 3 different actions 96 times. Found 55 fixpoints after 5 different actions. Largest state had 10 variables. [2018-09-15 17:20:35,528 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-15 17:20:35,545 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-15 17:20:35,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 05:20:35 BoogieIcfgContainer [2018-09-15 17:20:35,545 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 17:20:35,546 INFO L168 Benchmark]: Toolchain (without parser) took 2912.62 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 715.1 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -628.9 MB). Peak memory consumption was 86.2 MB. Max. memory is 7.1 GB. [2018-09-15 17:20:35,548 INFO L168 Benchmark]: CDTParser took 0.24 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. [2018-09-15 17:20:35,549 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.06 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. [2018-09-15 17:20:35,550 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.38 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. [2018-09-15 17:20:35,551 INFO L168 Benchmark]: Boogie Preprocessor took 23.02 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. [2018-09-15 17:20:35,551 INFO L168 Benchmark]: RCFGBuilder took 479.86 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 715.1 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -756.3 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2018-09-15 17:20:35,552 INFO L168 Benchmark]: TraceAbstraction took 2082.73 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: 116.9 MB). Peak memory consumption was 116.9 MB. Max. memory is 7.1 GB. [2018-09-15 17:20:35,557 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 293.06 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 24.38 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 23.02 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 479.86 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 715.1 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -756.3 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2082.73 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: 116.9 MB). Peak memory consumption was 116.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 5]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L11] int n = __VERIFIER_nondet_int(); [L12] int m = __VERIFIER_nondet_int(); [L13] int k = 0; [L14] int i,j; [L15] COND FALSE !(!(10 <= n && n <= 10000)) [L16] COND FALSE !(!(10 <= m && m <= 10000)) [L17] i = 0 [L17] COND TRUE i < n [L18] j = 0 [L18] COND TRUE j < m [L19] k ++ [L19] k ++ [L18] j++ [L18] j++ [L18] COND FALSE !(j < m) [L17] i++ [L17] i++ [L17] COND FALSE !(i < n) [L22] CALL __VERIFIER_assert(k >= 100) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 25 locations, 1 error locations. UNKNOWN Result, 2.0s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 48 SDtfs, 49 SDslu, 112 SDs, 0 SdLazy, 51 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.5s AbstIntTime, 4 AbstIntIterations, 3 AbstIntStrong, 0.9866071428571429 AbsIntWeakeningRatio, 0.65 AbsIntAvgWeakeningVarsNumRemoved, 2.4 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 15 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/nested_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_17-20-35-571.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/nested_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_17-20-35-571.csv Received shutdown request...