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_INT-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-lit/cggmp2005_variant_true-unreach-call_true-termination.c.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 13:06:59,908 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 13:06:59,910 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 13:06:59,922 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 13:06:59,922 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 13:06:59,923 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 13:06:59,924 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 13:06:59,926 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 13:06:59,928 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 13:06:59,929 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 13:06:59,930 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 13:06:59,930 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 13:06:59,931 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 13:06:59,932 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 13:06:59,933 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 13:06:59,934 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 13:06:59,935 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 13:06:59,937 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 13:06:59,939 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 13:06:59,945 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 13:06:59,946 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 13:06:59,947 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 13:06:59,954 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-15 13:06:59,962 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf [2018-09-15 13:06:59,977 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 13:06:59,978 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 13:06:59,979 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 13:06:59,979 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 13:06:59,979 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 13:06:59,979 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 13:06:59,979 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-15 13:06:59,980 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 13:06:59,980 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 13:06:59,980 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-09-15 13:06:59,980 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 13:06:59,980 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 13:06:59,981 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 13:06:59,981 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 13:06:59,982 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 13:06:59,982 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 13:06:59,982 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 13:06:59,982 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 13:06:59,982 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 13:06:59,983 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 13:06:59,983 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 13:06:59,983 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 13:06:59,983 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 13:06:59,983 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 13:06:59,984 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 13:06:59,984 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 13:06:59,984 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 13:06:59,984 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 13:06:59,984 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 13:06:59,985 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 13:06:59,985 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 13:06:59,985 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 13:06:59,985 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 13:06:59,985 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 13:07:00,030 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 13:07:00,043 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 13:07:00,047 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 13:07:00,049 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 13:07:00,049 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 13:07:00,050 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/cggmp2005_variant_true-unreach-call_true-termination.c.i [2018-09-15 13:07:00,405 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6aca8f93/f76aa1d897ab4853ba7377d8f4237cda/FLAG1d9b030c1 [2018-09-15 13:07:00,579 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 13:07:00,580 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/cggmp2005_variant_true-unreach-call_true-termination.c.i [2018-09-15 13:07:00,586 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6aca8f93/f76aa1d897ab4853ba7377d8f4237cda/FLAG1d9b030c1 [2018-09-15 13:07:00,602 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6aca8f93/f76aa1d897ab4853ba7377d8f4237cda [2018-09-15 13:07:00,612 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 13:07:00,616 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 13:07:00,617 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 13:07:00,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 13:07:00,625 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 13:07:00,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 01:07:00" (1/1) ... [2018-09-15 13:07:00,629 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@642d5920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:07:00, skipping insertion in model container [2018-09-15 13:07:00,629 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 01:07:00" (1/1) ... [2018-09-15 13:07:00,642 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 13:07:00,841 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 13:07:00,861 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 13:07:00,870 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 13:07:00,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:07:00 WrapperNode [2018-09-15 13:07:00,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 13:07:00,887 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 13:07:00,887 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 13:07:00,888 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 13:07:00,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:07:00" (1/1) ... [2018-09-15 13:07:00,904 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:07:00" (1/1) ... [2018-09-15 13:07:00,911 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 13:07:00,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 13:07:00,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 13:07:00,912 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 13:07:00,923 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:07:00" (1/1) ... [2018-09-15 13:07:00,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:07:00" (1/1) ... [2018-09-15 13:07:00,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:07:00" (1/1) ... [2018-09-15 13:07:00,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:07:00" (1/1) ... [2018-09-15 13:07:00,926 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:07:00" (1/1) ... [2018-09-15 13:07:00,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:07:00" (1/1) ... [2018-09-15 13:07:00,933 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:07:00" (1/1) ... [2018-09-15 13:07:00,935 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 13:07:00,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 13:07:00,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 13:07:00,936 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 13:07:00,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:07:00" (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 13:07:01,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 13:07:01,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 13:07:01,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 13:07:01,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 13:07:01,015 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 13:07:01,015 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 13:07:01,016 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-15 13:07:01,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-15 13:07:01,340 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 13:07:01,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 01:07:01 BoogieIcfgContainer [2018-09-15 13:07:01,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 13:07:01,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 13:07:01,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 13:07:01,346 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 13:07:01,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 01:07:00" (1/3) ... [2018-09-15 13:07:01,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc8c2ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 01:07:01, skipping insertion in model container [2018-09-15 13:07:01,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:07:00" (2/3) ... [2018-09-15 13:07:01,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc8c2ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 01:07:01, skipping insertion in model container [2018-09-15 13:07:01,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 01:07:01" (3/3) ... [2018-09-15 13:07:01,350 INFO L112 eAbstractionObserver]: Analyzing ICFG cggmp2005_variant_true-unreach-call_true-termination.c.i [2018-09-15 13:07:01,361 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 13:07:01,369 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 13:07:01,439 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 13:07:01,440 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 13:07:01,440 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 13:07:01,441 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 13:07:01,441 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 13:07:01,441 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 13:07:01,441 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 13:07:01,442 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 13:07:01,442 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 13:07:01,471 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-09-15 13:07:01,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-15 13:07:01,478 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 13:07:01,479 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 13:07:01,480 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 13:07:01,486 INFO L82 PathProgramCache]: Analyzing trace with hash -1281911547, now seen corresponding path program 1 times [2018-09-15 13:07:01,489 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 13:07:01,490 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 12 with the following transitions: [2018-09-15 13:07:01,492 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [20], [25], [28], [30], [36], [37], [38], [40] [2018-09-15 13:07:01,540 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 13:07:01,540 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 13:07:01,634 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 13:07:01,636 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Never found a fixpoint. Largest state had 4 variables. [2018-09-15 13:07:01,692 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 13:07:01,737 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 33.33% of their original sizes. [2018-09-15 13:07:01,738 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 13:07:01,786 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 13:07:01,789 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 13:07:01,789 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-15 13:07:01,790 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 13:07:01,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-15 13:07:01,803 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-15 13:07:01,804 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-15 13:07:01,807 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 4 states. [2018-09-15 13:07:01,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 13:07:01,916 INFO L93 Difference]: Finished difference Result 40 states and 48 transitions. [2018-09-15 13:07:01,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-15 13:07:01,919 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-09-15 13:07:01,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 13:07:01,927 INFO L225 Difference]: With dead ends: 40 [2018-09-15 13:07:01,928 INFO L226 Difference]: Without dead ends: 16 [2018-09-15 13:07:01,931 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-09-15 13:07:01,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-09-15 13:07:01,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 13. [2018-09-15 13:07:01,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-09-15 13:07:01,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-09-15 13:07:01,966 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2018-09-15 13:07:01,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 13:07:01,967 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-09-15 13:07:01,967 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-15 13:07:01,968 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-09-15 13:07:01,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-15 13:07:01,968 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 13:07:01,968 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 13:07:01,969 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 13:07:01,969 INFO L82 PathProgramCache]: Analyzing trace with hash -1335306055, now seen corresponding path program 1 times [2018-09-15 13:07:01,970 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 13:07:01,970 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 13 with the following transitions: [2018-09-15 13:07:01,970 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [25], [28], [30], [36], [37], [38], [40] [2018-09-15 13:07:01,972 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 13:07:01,972 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 13:07:01,977 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 13:07:01,977 INFO L272 AbstractInterpreter]: Visited 8 different actions 8 times. Never merged. Never widened. Never found a fixpoint. Largest state had 4 variables. [2018-09-15 13:07:02,014 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 13:07:02,025 INFO L224 lantSequenceWeakener]: Could never weaken! [2018-09-15 13:07:02,025 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 13:07:02,045 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 13:07:02,046 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 13:07:02,046 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-15 13:07:02,046 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 13:07:02,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-15 13:07:02,047 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-15 13:07:02,048 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-15 13:07:02,048 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 4 states. [2018-09-15 13:07:02,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 13:07:02,088 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2018-09-15 13:07:02,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-15 13:07:02,089 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-09-15 13:07:02,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 13:07:02,090 INFO L225 Difference]: With dead ends: 20 [2018-09-15 13:07:02,090 INFO L226 Difference]: Without dead ends: 15 [2018-09-15 13:07:02,091 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-15 13:07:02,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-09-15 13:07:02,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-09-15 13:07:02,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-09-15 13:07:02,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-09-15 13:07:02,096 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 12 [2018-09-15 13:07:02,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 13:07:02,096 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-09-15 13:07:02,097 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-15 13:07:02,097 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-09-15 13:07:02,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-15 13:07:02,097 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 13:07:02,098 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 13:07:02,098 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 13:07:02,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1931535679, now seen corresponding path program 1 times [2018-09-15 13:07:02,099 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 13:07:02,099 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2018-09-15 13:07:02,099 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [18], [25], [28], [30], [36], [37], [38], [40] [2018-09-15 13:07:02,101 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 13:07:02,101 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 13:07:02,140 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-15 13:07:02,141 INFO L272 AbstractInterpreter]: Visited 13 different actions 58 times. Merged at 3 different actions 20 times. Widened at 1 different actions 3 times. Found 1 fixpoints after 1 different actions. Largest state had 4 variables. [2018-09-15 13:07:02,166 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-15 13:07:02,183 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-15 13:07:02,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 01:07:02 BoogieIcfgContainer [2018-09-15 13:07:02,183 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 13:07:02,184 INFO L168 Benchmark]: Toolchain (without parser) took 1571.21 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 717.8 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -714.5 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2018-09-15 13:07:02,187 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. [2018-09-15 13:07:02,187 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.51 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 13:07:02,188 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.22 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 13:07:02,189 INFO L168 Benchmark]: Boogie Preprocessor took 23.58 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 13:07:02,189 INFO L168 Benchmark]: RCFGBuilder took 406.01 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 717.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -769.5 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2018-09-15 13:07:02,190 INFO L168 Benchmark]: TraceAbstraction took 840.79 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: 44.5 MB). Peak memory consumption was 44.5 MB. Max. memory is 7.1 GB. [2018-09-15 13:07:02,195 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 269.51 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 24.22 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 23.58 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 406.01 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 717.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -769.5 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 840.79 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: 44.5 MB). Peak memory consumption was 44.5 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 lo, mid, hi; [L12] lo = 0 [L13] mid = __VERIFIER_nondet_int() [L14] COND FALSE !(!(mid > 0 && mid <= 1000000)) [L15] hi = 2*mid [L16] COND TRUE mid > 0 [L17] lo = lo + 1 [L18] hi = hi - 1 [L19] mid = mid - 1 [L16] COND FALSE !(mid > 0) [L21] CALL __VERIFIER_assert(lo == hi) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. UNKNOWN Result, 0.7s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 31 SDtfs, 12 SDslu, 44 SDs, 0 SdLazy, 14 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.3s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9523809523809523 AbsIntWeakeningRatio, 0.5714285714285714 AbsIntAvgWeakeningVarsNumRemoved, 0.09523809523809523 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 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/cggmp2005_variant_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_13-07-02-208.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/cggmp2005_variant_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_13-07-02-208.csv Received shutdown request...