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-invgen/nest-if3_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 01:29:23,312 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 01:29:23,315 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 01:29:23,330 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 01:29:23,330 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 01:29:23,332 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 01:29:23,333 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 01:29:23,335 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 01:29:23,337 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 01:29:23,338 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 01:29:23,339 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 01:29:23,339 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 01:29:23,340 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 01:29:23,341 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 01:29:23,342 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 01:29:23,343 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 01:29:23,344 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 01:29:23,346 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 01:29:23,348 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 01:29:23,350 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 01:29:23,351 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 01:29:23,352 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 01:29:23,355 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-19 01:29:23,365 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 [2018-09-19 01:29:23,381 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 01:29:23,382 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 01:29:23,383 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 01:29:23,383 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 01:29:23,383 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 01:29:23,384 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 01:29:23,384 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 01:29:23,384 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 01:29:23,384 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 01:29:23,384 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 01:29:23,385 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 01:29:23,385 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 01:29:23,386 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 01:29:23,386 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 01:29:23,386 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 01:29:23,386 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 01:29:23,386 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 01:29:23,387 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 01:29:23,387 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 01:29:23,387 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 01:29:23,387 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 01:29:23,388 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 01:29:23,388 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 01:29:23,388 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 01:29:23,388 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 01:29:23,388 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 01:29:23,389 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 01:29:23,389 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 01:29:23,389 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 01:29:23,389 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 01:29:23,389 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 01:29:23,390 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 01:29:23,390 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 01:29:23,390 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 01:29:23,435 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 01:29:23,449 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 01:29:23,453 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 01:29:23,455 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 01:29:23,455 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 01:29:23,456 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/nest-if3_true-unreach-call_true-termination.i [2018-09-19 01:29:23,804 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce7e24375/200626ed5d9b4abba1583118697c8e4b/FLAGcccf1ca27 [2018-09-19 01:29:23,938 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 01:29:23,939 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/nest-if3_true-unreach-call_true-termination.i [2018-09-19 01:29:23,946 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce7e24375/200626ed5d9b4abba1583118697c8e4b/FLAGcccf1ca27 [2018-09-19 01:29:23,961 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce7e24375/200626ed5d9b4abba1583118697c8e4b [2018-09-19 01:29:23,975 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 01:29:23,978 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 01:29:23,980 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 01:29:23,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 01:29:23,987 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 01:29:23,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:29:23" (1/1) ... [2018-09-19 01:29:23,991 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63305414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:23, skipping insertion in model container [2018-09-19 01:29:23,991 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:29:23" (1/1) ... [2018-09-19 01:29:24,003 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 01:29:24,224 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 01:29:24,248 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 01:29:24,256 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 01:29:24,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:24 WrapperNode [2018-09-19 01:29:24,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 01:29:24,277 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 01:29:24,278 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 01:29:24,278 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 01:29:24,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:24" (1/1) ... [2018-09-19 01:29:24,295 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:24" (1/1) ... [2018-09-19 01:29:24,302 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 01:29:24,302 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 01:29:24,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 01:29:24,303 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 01:29:24,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:24" (1/1) ... [2018-09-19 01:29:24,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:24" (1/1) ... [2018-09-19 01:29:24,315 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:24" (1/1) ... [2018-09-19 01:29:24,315 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:24" (1/1) ... [2018-09-19 01:29:24,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:24" (1/1) ... [2018-09-19 01:29:24,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:24" (1/1) ... [2018-09-19 01:29:24,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:24" (1/1) ... [2018-09-19 01:29:24,326 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 01:29:24,327 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 01:29:24,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 01:29:24,327 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 01:29:24,329 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:24" (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 01:29:24,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 01:29:24,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 01:29:24,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 01:29:24,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 01:29:24,407 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 01:29:24,407 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 01:29:24,407 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 01:29:24,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 01:29:25,061 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 01:29:25,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:29:25 BoogieIcfgContainer [2018-09-19 01:29:25,062 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 01:29:25,063 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 01:29:25,063 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 01:29:25,066 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 01:29:25,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 01:29:23" (1/3) ... [2018-09-19 01:29:25,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5867643c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:29:25, skipping insertion in model container [2018-09-19 01:29:25,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:24" (2/3) ... [2018-09-19 01:29:25,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5867643c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:29:25, skipping insertion in model container [2018-09-19 01:29:25,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:29:25" (3/3) ... [2018-09-19 01:29:25,070 INFO L112 eAbstractionObserver]: Analyzing ICFG nest-if3_true-unreach-call_true-termination.i [2018-09-19 01:29:25,081 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 01:29:25,089 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 01:29:25,144 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 01:29:25,145 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 01:29:25,145 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 01:29:25,145 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 01:29:25,145 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 01:29:25,145 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 01:29:25,146 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 01:29:25,146 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 01:29:25,146 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 01:29:25,166 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2018-09-19 01:29:25,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-19 01:29:25,174 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:29:25,175 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 01:29:25,176 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:29:25,182 INFO L82 PathProgramCache]: Analyzing trace with hash -2056501113, now seen corresponding path program 1 times [2018-09-19 01:29:25,185 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:29:25,187 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-09-19 01:29:25,189 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [20], [25], [29], [34], [53], [56], [58], [64], [65], [66], [68] [2018-09-19 01:29:25,245 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:29:25,246 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:29:25,364 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:29:25,366 INFO L272 AbstractInterpreter]: Visited 15 different actions 15 times. Never merged. Never widened. Never found a fixpoint. Largest state had 6 variables. [2018-09-19 01:29:25,412 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:29:25,519 INFO L232 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 56.25% of their original sizes. [2018-09-19 01:29:25,519 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:29:25,978 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:29:25,980 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:29:25,980 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 01:29:25,980 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:29:25,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 01:29:25,992 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 01:29:25,993 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-09-19 01:29:25,995 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 10 states. [2018-09-19 01:29:26,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:29:26,815 INFO L93 Difference]: Finished difference Result 92 states and 129 transitions. [2018-09-19 01:29:26,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-19 01:29:26,818 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2018-09-19 01:29:26,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:29:26,828 INFO L225 Difference]: With dead ends: 92 [2018-09-19 01:29:26,829 INFO L226 Difference]: Without dead ends: 57 [2018-09-19 01:29:26,833 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2018-09-19 01:29:26,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-09-19 01:29:26,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 36. [2018-09-19 01:29:26,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-09-19 01:29:26,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2018-09-19 01:29:26,881 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 16 [2018-09-19 01:29:26,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:29:26,881 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2018-09-19 01:29:26,882 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 01:29:26,882 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2018-09-19 01:29:26,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-19 01:29:26,883 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:29:26,883 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 01:29:26,884 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:29:26,884 INFO L82 PathProgramCache]: Analyzing trace with hash -608089352, now seen corresponding path program 1 times [2018-09-19 01:29:26,884 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:29:26,885 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 24 with the following transitions: [2018-09-19 01:29:26,885 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [20], [25], [29], [32], [34], [41], [44], [48], [53], [56], [58], [64], [65], [66], [68] [2018-09-19 01:29:26,888 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:29:26,888 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:29:27,002 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:29:27,002 INFO L272 AbstractInterpreter]: Visited 19 different actions 93 times. Merged at 8 different actions 55 times. Widened at 2 different actions 6 times. Found 2 fixpoints after 2 different actions. Largest state had 8 variables. [2018-09-19 01:29:27,031 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:29:27,089 INFO L232 lantSequenceWeakener]: Weakened 7 states. On average, predicates are now at 42.14% of their original sizes. [2018-09-19 01:29:27,089 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:29:27,753 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:29:27,754 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:29:27,754 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 01:29:27,754 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:29:27,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 01:29:27,756 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 01:29:27,756 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2018-09-19 01:29:27,757 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 14 states. [2018-09-19 01:29:29,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:29:29,242 INFO L93 Difference]: Finished difference Result 98 states and 119 transitions. [2018-09-19 01:29:29,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-19 01:29:29,247 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 23 [2018-09-19 01:29:29,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:29:29,251 INFO L225 Difference]: With dead ends: 98 [2018-09-19 01:29:29,251 INFO L226 Difference]: Without dead ends: 96 [2018-09-19 01:29:29,254 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 37 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=202, Invalid=610, Unknown=0, NotChecked=0, Total=812 [2018-09-19 01:29:29,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-09-19 01:29:29,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 43. [2018-09-19 01:29:29,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-09-19 01:29:29,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2018-09-19 01:29:29,271 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 23 [2018-09-19 01:29:29,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:29:29,271 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2018-09-19 01:29:29,272 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 01:29:29,272 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2018-09-19 01:29:29,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-19 01:29:29,273 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:29:29,273 INFO L376 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 01:29:29,274 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:29:29,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1618157952, now seen corresponding path program 1 times [2018-09-19 01:29:29,274 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:29:29,274 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 32 with the following transitions: [2018-09-19 01:29:29,275 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [20], [25], [29], [32], [34], [37], [41], [44], [48], [53], [56], [58], [61], [63], [64], [65], [66], [68], [69] [2018-09-19 01:29:29,277 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:29:29,277 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:29:29,392 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:29:29,392 INFO L272 AbstractInterpreter]: Visited 23 different actions 130 times. Merged at 10 different actions 64 times. Widened at 3 different actions 5 times. Found 10 fixpoints after 3 different actions. Largest state had 9 variables. [2018-09-19 01:29:29,400 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:29:29,457 INFO L232 lantSequenceWeakener]: Weakened 10 states. On average, predicates are now at 54.5% of their original sizes. [2018-09-19 01:29:29,458 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:29:29,936 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:29:29,937 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:29:29,937 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-19 01:29:29,938 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:29:29,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-19 01:29:29,939 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-19 01:29:29,939 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2018-09-19 01:29:29,940 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand 15 states. [2018-09-19 01:29:30,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:29:30,829 INFO L93 Difference]: Finished difference Result 146 states and 178 transitions. [2018-09-19 01:29:30,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 01:29:30,833 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 31 [2018-09-19 01:29:30,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:29:30,836 INFO L225 Difference]: With dead ends: 146 [2018-09-19 01:29:30,838 INFO L226 Difference]: Without dead ends: 144 [2018-09-19 01:29:30,839 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2018-09-19 01:29:30,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-09-19 01:29:30,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 89. [2018-09-19 01:29:30,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-09-19 01:29:30,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 108 transitions. [2018-09-19 01:29:30,881 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 108 transitions. Word has length 31 [2018-09-19 01:29:30,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:29:30,882 INFO L480 AbstractCegarLoop]: Abstraction has 89 states and 108 transitions. [2018-09-19 01:29:30,882 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-19 01:29:30,882 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 108 transitions. [2018-09-19 01:29:30,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-09-19 01:29:30,886 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:29:30,887 INFO L376 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 01:29:30,887 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:29:30,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1292015375, now seen corresponding path program 1 times [2018-09-19 01:29:30,888 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:29:30,888 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 39 with the following transitions: [2018-09-19 01:29:30,888 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [20], [25], [29], [32], [34], [37], [41], [44], [46], [48], [53], [56], [58], [61], [63], [64], [65], [66], [68], [69] [2018-09-19 01:29:30,896 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:29:30,897 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:29:31,055 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:29:31,055 INFO L272 AbstractInterpreter]: Visited 24 different actions 182 times. Merged at 11 different actions 88 times. Widened at 3 different actions 11 times. Found 23 fixpoints after 6 different actions. Largest state had 9 variables. [2018-09-19 01:29:31,082 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:29:31,142 INFO L232 lantSequenceWeakener]: Weakened 13 states. On average, predicates are now at 47.31% of their original sizes. [2018-09-19 01:29:31,142 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:29:31,510 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:29:31,511 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:29:31,511 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-19 01:29:31,512 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:29:31,512 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-19 01:29:31,513 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-19 01:29:31,513 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2018-09-19 01:29:31,514 INFO L87 Difference]: Start difference. First operand 89 states and 108 transitions. Second operand 15 states. [2018-09-19 01:29:32,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:29:32,189 INFO L93 Difference]: Finished difference Result 98 states and 119 transitions. [2018-09-19 01:29:32,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-19 01:29:32,189 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 38 [2018-09-19 01:29:32,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:29:32,190 INFO L225 Difference]: With dead ends: 98 [2018-09-19 01:29:32,190 INFO L226 Difference]: Without dead ends: 0 [2018-09-19 01:29:32,192 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=139, Invalid=367, Unknown=0, NotChecked=0, Total=506 [2018-09-19 01:29:32,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-19 01:29:32,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-19 01:29:32,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-19 01:29:32,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-19 01:29:32,194 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2018-09-19 01:29:32,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:29:32,194 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-19 01:29:32,194 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-19 01:29:32,195 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-19 01:29:32,195 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-19 01:29:32,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-19 01:29:32,462 WARN L178 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 97 [2018-09-19 01:29:33,660 WARN L178 SmtUtils]: Spent 953.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 35 [2018-09-19 01:29:33,786 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 19 [2018-09-19 01:29:33,869 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-19 01:29:33,870 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-19 01:29:33,870 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-19 01:29:33,870 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-19 01:29:33,870 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-19 01:29:33,870 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-19 01:29:33,870 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 10 24) no Hoare annotation was computed. [2018-09-19 01:29:33,871 INFO L426 ceAbstractionStarter]: For program point L21(lines 21 22) no Hoare annotation was computed. [2018-09-19 01:29:33,871 INFO L422 ceAbstractionStarter]: At program point L19(line 19) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~n~0) (<= main_~l~0 main_~i~0) (<= (* 2 main_~n~0) 1999998) (<= 2 (* 2 main_~k~0)) (<= 2 (* 2 main_~l~0)) (<= (+ main_~k~0 1) main_~n~0)) [2018-09-19 01:29:33,871 INFO L426 ceAbstractionStarter]: For program point L19-1(lines 18 20) no Hoare annotation was computed. [2018-09-19 01:29:33,871 INFO L426 ceAbstractionStarter]: For program point L17-1(lines 17 23) no Hoare annotation was computed. [2018-09-19 01:29:33,871 INFO L426 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-09-19 01:29:33,872 INFO L426 ceAbstractionStarter]: For program point L17-3(lines 17 23) no Hoare annotation was computed. [2018-09-19 01:29:33,873 INFO L422 ceAbstractionStarter]: At program point L17-4(lines 17 23) the Hoare annotation is: (let ((.cse1 (* 2 main_~k~0)) (.cse4 (+ main_~k~0 999998))) (let ((.cse0 (<= main_~l~0 .cse4)) (.cse3 (<= 2 .cse1))) (or (let ((.cse2 (* 2 main_~n~0))) (and .cse0 (<= .cse1 2000000) (<= 2 (* 2 main_~i~0)) (<= 4 .cse2) .cse3 (<= 2 (* 2 main_~l~0)) (<= main_~i~0 (+ main_~n~0 999997)) (<= .cse2 1999998))) (and (<= .cse1 2) .cse0 .cse3 (<= 2 (+ main_~k~0 main_~l~0)) (<= main_~n~0 .cse4) (<= 0 (+ main_~k~0 main_~n~0 2147483647)))))) [2018-09-19 01:29:33,873 INFO L426 ceAbstractionStarter]: For program point L17-5(lines 10 24) no Hoare annotation was computed. [2018-09-19 01:29:33,873 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 10 24) the Hoare annotation is: true [2018-09-19 01:29:33,873 INFO L426 ceAbstractionStarter]: For program point L18-1(lines 18 20) no Hoare annotation was computed. [2018-09-19 01:29:33,873 INFO L426 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2018-09-19 01:29:33,874 INFO L422 ceAbstractionStarter]: At program point L18-3(lines 18 20) the Hoare annotation is: (and (<= main_~i~0 (+ main_~l~0 1000000)) (<= main_~l~0 main_~i~0) (<= (* 2 main_~n~0) 1999998) (<= main_~i~0 (+ main_~k~0 999998)) (<= 2 (* 2 main_~k~0)) (<= 2 (* 2 main_~l~0)) (<= (+ main_~k~0 1) main_~n~0)) [2018-09-19 01:29:33,874 INFO L426 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-09-19 01:29:33,874 INFO L426 ceAbstractionStarter]: For program point L18-4(lines 18 20) no Hoare annotation was computed. [2018-09-19 01:29:33,874 INFO L429 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-09-19 01:29:33,874 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-09-19 01:29:33,875 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-09-19 01:29:33,875 INFO L426 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-09-19 01:29:33,875 INFO L426 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-09-19 01:29:33,875 INFO L426 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-09-19 01:29:33,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 01:29:33 BoogieIcfgContainer [2018-09-19 01:29:33,888 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 01:29:33,888 INFO L168 Benchmark]: Toolchain (without parser) took 9913.05 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 802.2 MB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -269.4 MB). Peak memory consumption was 532.7 MB. Max. memory is 7.1 GB. [2018-09-19 01:29:33,890 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 01:29:33,891 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.24 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 01:29:33,892 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.82 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 01:29:33,892 INFO L168 Benchmark]: Boogie Preprocessor took 24.21 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. [2018-09-19 01:29:33,893 INFO L168 Benchmark]: RCFGBuilder took 734.61 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 802.2 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -838.8 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2018-09-19 01:29:33,894 INFO L168 Benchmark]: TraceAbstraction took 8825.07 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 558.8 MB). Peak memory consumption was 558.8 MB. Max. memory is 7.1 GB. [2018-09-19 01:29:33,899 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 297.24 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 24.82 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 24.21 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. * RCFGBuilder took 734.61 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 802.2 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -838.8 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 8825.07 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 558.8 MB). Peak memory consumption was 558.8 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: 17]: Loop Invariant Derived loop invariant: (((((((l <= k + 999998 && 2 * k <= 2000000) && 2 <= 2 * i) && 4 <= 2 * n) && 2 <= 2 * k) && 2 <= 2 * l) && i <= n + 999997) && 2 * n <= 1999998) || (((((2 * k <= 2 && l <= k + 999998) && 2 <= 2 * k) && 2 <= k + l) && n <= k + 999998) && 0 <= k + n + 2147483647) - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (((((i <= l + 1000000 && l <= i) && 2 * n <= 1999998) && i <= k + 999998) && 2 <= 2 * k) && 2 <= 2 * l) && k + 1 <= n - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 27 locations, 1 error locations. SAFE Result, 8.7s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 3.9s AutomataDifference, 0.0s DeadEndRemovalTime, 1.6s HoareAnnotationTime, HoareTripleCheckerStatistics: 75 SDtfs, 371 SDslu, 462 SDs, 0 SdLazy, 544 SolverSat, 188 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 145 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.6s AbstIntTime, 4 AbstIntIterations, 4 AbstIntStrong, 0.9432425213675208 AbsIntWeakeningRatio, 0.4423076923076923 AbsIntAvgWeakeningVarsNumRemoved, 5.480769230769231 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 129 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 12 PreInvPairs, 35 NumberOfFragments, 142 HoareAnnotationTreeSize, 12 FomulaSimplifications, 23520 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 8 FomulaSimplificationsInter, 703 FormulaSimplificationTreeSizeReductionInter, 1.2s 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/nest-if3_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_01-29-33-925.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/nest-if3_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_01-29-33-925.csv Received shutdown request...