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_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-acceleration/array_true-unreach-call2_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 09:22:55,284 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 09:22:55,286 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 09:22:55,308 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 09:22:55,308 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 09:22:55,309 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 09:22:55,311 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 09:22:55,312 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 09:22:55,314 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 09:22:55,315 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 09:22:55,316 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 09:22:55,317 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 09:22:55,318 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 09:22:55,319 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 09:22:55,320 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 09:22:55,321 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 09:22:55,322 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 09:22:55,324 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 09:22:55,326 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 09:22:55,328 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 09:22:55,332 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 09:22:55,334 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 09:22:55,339 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-15 09:22:55,359 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-09-15 09:22:55,380 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 09:22:55,381 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 09:22:55,383 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 09:22:55,383 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 09:22:55,383 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 09:22:55,383 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 09:22:55,384 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 09:22:55,384 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 09:22:55,384 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 09:22:55,384 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 09:22:55,384 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 09:22:55,385 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 09:22:55,385 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 09:22:55,386 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 09:22:55,386 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 09:22:55,386 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 09:22:55,386 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 09:22:55,387 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 09:22:55,388 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 09:22:55,388 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 09:22:55,388 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 09:22:55,389 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 09:22:55,389 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 09:22:55,389 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 09:22:55,389 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 09:22:55,390 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 09:22:55,390 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 09:22:55,390 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 09:22:55,390 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 09:22:55,390 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 09:22:55,391 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 09:22:55,391 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 09:22:55,391 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 09:22:55,464 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 09:22:55,477 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 09:22:55,481 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 09:22:55,482 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 09:22:55,483 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 09:22:55,483 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/array_true-unreach-call2_true-termination.i [2018-09-15 09:22:55,839 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97cf6b78d/9aeb97b20df24be5bec9d5b5dcfc16f7/FLAG5e0e504b1 [2018-09-15 09:22:56,007 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 09:22:56,008 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/array_true-unreach-call2_true-termination.i [2018-09-15 09:22:56,014 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97cf6b78d/9aeb97b20df24be5bec9d5b5dcfc16f7/FLAG5e0e504b1 [2018-09-15 09:22:56,030 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97cf6b78d/9aeb97b20df24be5bec9d5b5dcfc16f7 [2018-09-15 09:22:56,045 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 09:22:56,049 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 09:22:56,050 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 09:22:56,051 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 09:22:56,059 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 09:22:56,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:22:56" (1/1) ... [2018-09-15 09:22:56,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@201dfe03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:22:56, skipping insertion in model container [2018-09-15 09:22:56,063 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:22:56" (1/1) ... [2018-09-15 09:22:56,072 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 09:22:56,323 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 09:22:56,346 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 09:22:56,355 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 09:22:56,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:22:56 WrapperNode [2018-09-15 09:22:56,373 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 09:22:56,374 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 09:22:56,374 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 09:22:56,374 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 09:22:56,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:22:56" (1/1) ... [2018-09-15 09:22:56,391 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:22:56" (1/1) ... [2018-09-15 09:22:56,397 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 09:22:56,398 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 09:22:56,398 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 09:22:56,398 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 09:22:56,409 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:22:56" (1/1) ... [2018-09-15 09:22:56,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:22:56" (1/1) ... [2018-09-15 09:22:56,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:22:56" (1/1) ... [2018-09-15 09:22:56,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:22:56" (1/1) ... [2018-09-15 09:22:56,415 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:22:56" (1/1) ... [2018-09-15 09:22:56,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:22:56" (1/1) ... [2018-09-15 09:22:56,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:22:56" (1/1) ... [2018-09-15 09:22:56,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 09:22:56,424 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 09:22:56,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 09:22:56,425 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 09:22:56,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:22:56" (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 09:22:56,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 09:22:56,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 09:22:56,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 09:22:56,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 09:22:56,491 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 09:22:56,491 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 09:22:56,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-15 09:22:56,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-15 09:22:56,730 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 09:22:56,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 09:22:56 BoogieIcfgContainer [2018-09-15 09:22:56,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 09:22:56,732 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 09:22:56,732 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 09:22:56,736 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 09:22:56,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 09:22:56" (1/3) ... [2018-09-15 09:22:56,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@310cac08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 09:22:56, skipping insertion in model container [2018-09-15 09:22:56,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:22:56" (2/3) ... [2018-09-15 09:22:56,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@310cac08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 09:22:56, skipping insertion in model container [2018-09-15 09:22:56,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 09:22:56" (3/3) ... [2018-09-15 09:22:56,740 INFO L112 eAbstractionObserver]: Analyzing ICFG array_true-unreach-call2_true-termination.i [2018-09-15 09:22:56,750 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 09:22:56,758 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 09:22:56,812 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 09:22:56,813 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 09:22:56,813 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 09:22:56,813 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 09:22:56,813 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 09:22:56,813 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 09:22:56,814 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 09:22:56,814 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 09:22:56,814 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 09:22:56,831 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-09-15 09:22:56,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-15 09:22:56,838 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 09:22:56,839 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 09:22:56,840 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 09:22:56,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1870586046, now seen corresponding path program 1 times [2018-09-15 09:22:56,849 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 09:22:56,850 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 11 with the following transitions: [2018-09-15 09:22:56,852 INFO L202 CegarAbsIntRunner]: [0], [4], [17], [21], [24], [26], [32], [33], [34], [36] [2018-09-15 09:22:56,903 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 09:22:56,904 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 09:22:56,978 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 09:22:56,980 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Never found a fixpoint. Largest state had 4 variables. [2018-09-15 09:22:57,015 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 09:22:57,080 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 100% of their original sizes. [2018-09-15 09:22:57,081 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 09:22:57,084 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 09:22:57,086 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 09:22:57,086 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-15 09:22:57,087 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 09:22:57,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-15 09:22:57,118 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-15 09:22:57,119 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-15 09:22:57,125 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2018-09-15 09:22:57,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 09:22:57,150 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2018-09-15 09:22:57,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-15 09:22:57,151 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-09-15 09:22:57,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 09:22:57,161 INFO L225 Difference]: With dead ends: 30 [2018-09-15 09:22:57,162 INFO L226 Difference]: Without dead ends: 13 [2018-09-15 09:22:57,165 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-15 09:22:57,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-09-15 09:22:57,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-09-15 09:22:57,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-09-15 09:22:57,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-09-15 09:22:57,207 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2018-09-15 09:22:57,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 09:22:57,208 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-09-15 09:22:57,208 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-15 09:22:57,208 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-09-15 09:22:57,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-15 09:22:57,209 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 09:22:57,210 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 09:22:57,210 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 09:22:57,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1861068280, now seen corresponding path program 1 times [2018-09-15 09:22:57,211 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 09:22:57,211 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 12 with the following transitions: [2018-09-15 09:22:57,211 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [21], [24], [26], [32], [33], [34], [36] [2018-09-15 09:22:57,213 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 09:22:57,214 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 09:22:57,225 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 09:22:57,226 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 09:22:57,265 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 09:22:57,302 INFO L224 lantSequenceWeakener]: Could never weaken! [2018-09-15 09:22:57,303 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 09:22:57,312 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 09:22:57,313 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 09:22:57,313 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-15 09:22:57,313 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 09:22:57,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-15 09:22:57,314 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-15 09:22:57,315 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 09:22:57,315 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 3 states. [2018-09-15 09:22:57,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 09:22:57,348 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2018-09-15 09:22:57,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-15 09:22:57,349 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-09-15 09:22:57,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 09:22:57,350 INFO L225 Difference]: With dead ends: 21 [2018-09-15 09:22:57,350 INFO L226 Difference]: Without dead ends: 16 [2018-09-15 09:22:57,351 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 09:22:57,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-09-15 09:22:57,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2018-09-15 09:22:57,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-09-15 09:22:57,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-09-15 09:22:57,357 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2018-09-15 09:22:57,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 09:22:57,357 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-09-15 09:22:57,357 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-15 09:22:57,357 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-09-15 09:22:57,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-15 09:22:57,358 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 09:22:57,358 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 09:22:57,358 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 09:22:57,358 INFO L82 PathProgramCache]: Analyzing trace with hash 996352094, now seen corresponding path program 1 times [2018-09-15 09:22:57,359 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 09:22:57,359 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2018-09-15 09:22:57,359 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [13], [15], [21], [24], [26], [32], [33], [34], [36] [2018-09-15 09:22:57,361 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 09:22:57,361 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 09:22:57,434 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-15 09:22:57,435 INFO L272 AbstractInterpreter]: Visited 13 different actions 41 times. Merged at 3 different actions 21 times. Widened at 1 different actions 3 times. Found 1 fixpoints after 1 different actions. Largest state had 5 variables. [2018-09-15 09:22:57,465 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-15 09:22:57,485 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-15 09:22:57,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 09:22:57 BoogieIcfgContainer [2018-09-15 09:22:57,486 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 09:22:57,487 INFO L168 Benchmark]: Toolchain (without parser) took 1440.75 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 721.9 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -717.1 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2018-09-15 09:22:57,491 INFO L168 Benchmark]: CDTParser took 0.21 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 09:22:57,492 INFO L168 Benchmark]: CACSL2BoogieTranslator took 322.73 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 09:22:57,492 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.94 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 09:22:57,493 INFO L168 Benchmark]: Boogie Preprocessor took 26.04 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 09:22:57,494 INFO L168 Benchmark]: RCFGBuilder took 306.94 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 721.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -763.9 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2018-09-15 09:22:57,496 INFO L168 Benchmark]: TraceAbstraction took 753.92 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: 36.3 MB). Peak memory consumption was 36.3 MB. Max. memory is 7.1 GB. [2018-09-15 09:22:57,500 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 322.73 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 23.94 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.04 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 306.94 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 721.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -763.9 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 753.92 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: 36.3 MB). Peak memory consumption was 36.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 4]: 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: [L9] int A[2048]; [L10] int B[2048]; [L11] int i; [L12] int tmp; [L13] i = 0 [L13] COND TRUE i < 2048 [L14] tmp = A[i] [L15] B[i] = tmp [L13] i++ [L13] i++ [L13] COND FALSE !(i < 2048) [L17] CALL __VERIFIER_assert(A[2048/2] == B[2048/2]) [L3] COND TRUE !(cond) [L4] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. UNKNOWN Result, 0.6s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 30 SDtfs, 1 SDslu, 9 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 0.7894736842105263 AbsIntWeakeningRatio, 0.631578947368421 AbsIntAvgWeakeningVarsNumRemoved, 0.10526315789473684 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 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/array_true-unreach-call2_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_09-22-57-519.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/array_true-unreach-call2_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_09-22-57-519.csv Received shutdown request...