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_INTCON-OldIcfg.epf -i ../../../trunk/examples/svcomp/loops/for_infinite_loop_2_true-unreach-call_false-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 11:35:57,867 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 11:35:57,870 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 11:35:57,888 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 11:35:57,889 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 11:35:57,891 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 11:35:57,892 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 11:35:57,896 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 11:35:57,899 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 11:35:57,900 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 11:35:57,908 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 11:35:57,908 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 11:35:57,909 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 11:35:57,910 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 11:35:57,916 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 11:35:57,917 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 11:35:57,918 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 11:35:57,921 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 11:35:57,928 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 11:35:57,931 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 11:35:57,934 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 11:35:57,936 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 11:35:57,941 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-19 11:35:57,956 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf [2018-09-19 11:35:57,987 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 11:35:57,987 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 11:35:57,988 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 11:35:57,988 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 11:35:57,989 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 11:35:57,989 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 11:35:57,989 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 11:35:57,989 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-19 11:35:57,989 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 11:35:57,990 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 11:35:57,990 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 11:35:57,990 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 11:35:57,991 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 11:35:57,991 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 11:35:57,992 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 11:35:57,992 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 11:35:57,992 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 11:35:57,992 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 11:35:57,992 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 11:35:57,992 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 11:35:57,993 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 11:35:57,993 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 11:35:57,993 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 11:35:57,995 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 11:35:57,995 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 11:35:57,996 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 11:35:57,996 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 11:35:57,996 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 11:35:57,996 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 11:35:57,997 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 11:35:57,997 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 11:35:57,997 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 11:35:57,997 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 11:35:57,997 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 11:35:58,073 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 11:35:58,085 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 11:35:58,089 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 11:35:58,091 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 11:35:58,091 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 11:35:58,092 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/for_infinite_loop_2_true-unreach-call_false-termination.i [2018-09-19 11:35:58,434 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edc2dd7d5/45b333290ec943898296fcbd03dfa059/FLAG4748b36f4 [2018-09-19 11:35:58,600 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 11:35:58,601 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/for_infinite_loop_2_true-unreach-call_false-termination.i [2018-09-19 11:35:58,607 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edc2dd7d5/45b333290ec943898296fcbd03dfa059/FLAG4748b36f4 [2018-09-19 11:35:58,623 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edc2dd7d5/45b333290ec943898296fcbd03dfa059 [2018-09-19 11:35:58,637 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 11:35:58,641 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 11:35:58,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 11:35:58,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 11:35:58,649 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 11:35:58,650 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 11:35:58" (1/1) ... [2018-09-19 11:35:58,653 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f5721ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:35:58, skipping insertion in model container [2018-09-19 11:35:58,653 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 11:35:58" (1/1) ... [2018-09-19 11:35:58,664 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 11:35:58,851 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 11:35:58,868 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 11:35:58,873 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 11:35:58,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:35:58 WrapperNode [2018-09-19 11:35:58,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 11:35:58,887 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 11:35:58,887 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 11:35:58,887 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 11:35:58,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:35:58" (1/1) ... [2018-09-19 11:35:58,903 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:35:58" (1/1) ... [2018-09-19 11:35:58,910 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 11:35:58,910 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 11:35:58,910 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 11:35:58,910 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 11:35:58,921 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:35:58" (1/1) ... [2018-09-19 11:35:58,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:35:58" (1/1) ... [2018-09-19 11:35:58,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:35:58" (1/1) ... [2018-09-19 11:35:58,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:35:58" (1/1) ... [2018-09-19 11:35:58,924 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:35:58" (1/1) ... [2018-09-19 11:35:58,930 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:35:58" (1/1) ... [2018-09-19 11:35:58,932 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:35:58" (1/1) ... [2018-09-19 11:35:58,934 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 11:35:58,935 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 11:35:58,935 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 11:35:58,935 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 11:35:58,937 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:35:58" (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 [2018-09-19 11:35:59,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 11:35:59,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 11:35:59,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 11:35:59,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 11:35:59,009 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 11:35:59,009 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 11:35:59,009 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 11:35:59,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 11:35:59,274 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 11:35:59,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 11:35:59 BoogieIcfgContainer [2018-09-19 11:35:59,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 11:35:59,276 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 11:35:59,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 11:35:59,279 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 11:35:59,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 11:35:58" (1/3) ... [2018-09-19 11:35:59,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@253e317c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 11:35:59, skipping insertion in model container [2018-09-19 11:35:59,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:35:58" (2/3) ... [2018-09-19 11:35:59,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@253e317c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 11:35:59, skipping insertion in model container [2018-09-19 11:35:59,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 11:35:59" (3/3) ... [2018-09-19 11:35:59,283 INFO L112 eAbstractionObserver]: Analyzing ICFG for_infinite_loop_2_true-unreach-call_false-termination.i [2018-09-19 11:35:59,293 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 11:35:59,299 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 11:35:59,342 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 11:35:59,343 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 11:35:59,343 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 11:35:59,343 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 11:35:59,343 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 11:35:59,344 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 11:35:59,344 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 11:35:59,344 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 11:35:59,344 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 11:35:59,362 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-09-19 11:35:59,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-19 11:35:59,368 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:35:59,369 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 11:35:59,370 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:35:59,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1153397670, now seen corresponding path program 1 times [2018-09-19 11:35:59,379 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:35:59,381 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 12 with the following transitions: [2018-09-19 11:35:59,383 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [22], [26], [29], [31], [37], [38], [39], [43] [2018-09-19 11:35:59,423 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 11:35:59,423 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:35:59,509 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:35:59,510 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Never found a fixpoint. Largest state had 5 variables. [2018-09-19 11:35:59,531 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:35:59,597 INFO L232 lantSequenceWeakener]: Weakened 2 states. On average, predicates are now at 62.5% of their original sizes. [2018-09-19 11:35:59,597 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:35:59,626 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:35:59,628 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:35:59,629 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-19 11:35:59,629 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:35:59,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-19 11:35:59,640 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-19 11:35:59,641 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-19 11:35:59,644 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 4 states. [2018-09-19 11:35:59,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:35:59,738 INFO L93 Difference]: Finished difference Result 35 states and 42 transitions. [2018-09-19 11:35:59,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-19 11:35:59,741 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-09-19 11:35:59,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:35:59,753 INFO L225 Difference]: With dead ends: 35 [2018-09-19 11:35:59,753 INFO L226 Difference]: Without dead ends: 16 [2018-09-19 11:35:59,758 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-19 11:35:59,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-09-19 11:35:59,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-09-19 11:35:59,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-09-19 11:35:59,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-09-19 11:35:59,803 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 11 [2018-09-19 11:35:59,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:35:59,804 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-09-19 11:35:59,804 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-19 11:35:59,804 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-09-19 11:35:59,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-19 11:35:59,806 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:35:59,806 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 11:35:59,806 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:35:59,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1085730297, now seen corresponding path program 1 times [2018-09-19 11:35:59,807 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:35:59,808 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 13 with the following transitions: [2018-09-19 11:35:59,808 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [17], [26], [29], [31], [37], [38], [39], [41] [2018-09-19 11:35:59,809 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 11:35:59,810 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:35:59,827 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:35:59,828 INFO L272 AbstractInterpreter]: Visited 11 different actions 11 times. Never merged. Never widened. Never found a fixpoint. Largest state had 5 variables. [2018-09-19 11:35:59,867 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:35:59,897 INFO L232 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 65% of their original sizes. [2018-09-19 11:35:59,897 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:35:59,964 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:35:59,965 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:35:59,965 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 11:35:59,966 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:35:59,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 11:35:59,967 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 11:35:59,967 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-09-19 11:35:59,968 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 6 states. [2018-09-19 11:36:00,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:36:00,062 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2018-09-19 11:36:00,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-19 11:36:00,062 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2018-09-19 11:36:00,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:36:00,063 INFO L225 Difference]: With dead ends: 16 [2018-09-19 11:36:00,063 INFO L226 Difference]: Without dead ends: 0 [2018-09-19 11:36:00,065 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-09-19 11:36:00,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-19 11:36:00,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-19 11:36:00,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-19 11:36:00,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-19 11:36:00,066 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2018-09-19 11:36:00,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:36:00,067 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-19 11:36:00,067 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 11:36:00,067 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-19 11:36:00,067 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-19 11:36:00,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-19 11:36:00,300 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-09-19 11:36:00,432 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-19 11:36:00,433 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-19 11:36:00,433 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-19 11:36:00,433 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-19 11:36:00,433 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-19 11:36:00,434 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-19 11:36:00,434 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 10 20) the Hoare annotation is: true [2018-09-19 11:36:00,434 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 10 20) no Hoare annotation was computed. [2018-09-19 11:36:00,434 INFO L422 ceAbstractionStarter]: At program point L17(line 17) the Hoare annotation is: (and (<= main_~n~0 2147483647) (= main_~x~0 0) (<= 0 (+ main_~n~0 2147483648))) [2018-09-19 11:36:00,437 INFO L426 ceAbstractionStarter]: For program point L17-1(lines 15 18) no Hoare annotation was computed. [2018-09-19 11:36:00,437 INFO L426 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-09-19 11:36:00,437 INFO L426 ceAbstractionStarter]: For program point L15-1(lines 15 18) no Hoare annotation was computed. [2018-09-19 11:36:00,437 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 10 20) no Hoare annotation was computed. [2018-09-19 11:36:00,438 INFO L422 ceAbstractionStarter]: At program point L15-3(lines 15 18) the Hoare annotation is: (and (<= main_~n~0 2147483647) (= main_~x~0 0) (<= 0 (+ main_~n~0 2147483648))) [2018-09-19 11:36:00,438 INFO L422 ceAbstractionStarter]: At program point L15-4(lines 15 18) the Hoare annotation is: false [2018-09-19 11:36:00,438 INFO L429 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-09-19 11:36:00,439 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-09-19 11:36:00,439 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-09-19 11:36:00,439 INFO L426 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-09-19 11:36:00,439 INFO L426 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-09-19 11:36:00,439 INFO L426 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-09-19 11:36:00,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 11:36:00 BoogieIcfgContainer [2018-09-19 11:36:00,453 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 11:36:00,454 INFO L168 Benchmark]: Toolchain (without parser) took 1816.27 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 711.5 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -705.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 7.1 GB. [2018-09-19 11:36:00,457 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-09-19 11:36:00,459 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.77 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. [2018-09-19 11:36:00,460 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.92 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. [2018-09-19 11:36:00,460 INFO L168 Benchmark]: Boogie Preprocessor 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. [2018-09-19 11:36:00,461 INFO L168 Benchmark]: RCFGBuilder took 339.76 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 711.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -763.0 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-09-19 11:36:00,462 INFO L168 Benchmark]: TraceAbstraction took 1177.74 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 46.7 MB). Peak memory consumption was 46.7 MB. Max. memory is 7.1 GB. [2018-09-19 11:36:00,469 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 244.77 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 22.92 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 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. * RCFGBuilder took 339.76 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 711.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -763.0 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1177.74 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 46.7 MB). Peak memory consumption was 46.7 MB. Max. memory is 7.1 GB. * 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: 15]: Loop Invariant Derived loop invariant: (n <= 2147483647 && x == 0) && 0 <= n + 2147483648 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. SAFE Result, 1.1s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 28 SDtfs, 20 SDslu, 41 SDs, 0 SdLazy, 14 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 2 AbstIntIterations, 2 AbstIntStrong, 0.9166666666666666 AbsIntWeakeningRatio, 0.6666666666666666 AbsIntAvgWeakeningVarsNumRemoved, 1.2857142857142858 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 10 PreInvPairs, 12 NumberOfFragments, 30 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/for_infinite_loop_2_true-unreach-call_false-termination.i_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_11-36-00-494.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/for_infinite_loop_2_true-unreach-call_false-termination.i_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_11-36-00-494.csv Received shutdown request...