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/loops/string_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 01:29:00,440 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 01:29:00,443 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 01:29:00,455 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 01:29:00,456 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 01:29:00,457 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 01:29:00,460 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 01:29:00,463 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 01:29:00,464 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 01:29:00,465 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 01:29:00,469 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 01:29:00,471 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 01:29:00,473 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 01:29:00,474 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 01:29:00,477 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 01:29:00,478 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 01:29:00,479 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 01:29:00,490 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 01:29:00,492 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 01:29:00,497 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 01:29:00,501 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 01:29:00,502 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 01:29:00,507 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-19 01:29:00,518 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 01:29:00,541 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 01:29:00,541 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 01:29:00,542 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 01:29:00,544 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 01:29:00,544 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 01:29:00,544 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 01:29:00,544 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 01:29:00,545 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 01:29:00,545 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 01:29:00,545 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 01:29:00,545 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 01:29:00,546 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 01:29:00,547 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 01:29:00,547 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 01:29:00,547 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 01:29:00,547 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 01:29:00,548 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 01:29:00,548 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 01:29:00,548 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 01:29:00,548 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 01:29:00,550 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 01:29:00,550 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 01:29:00,551 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 01:29:00,551 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 01:29:00,551 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 01:29:00,551 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 01:29:00,552 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 01:29:00,552 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 01:29:00,552 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 01:29:00,552 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 01:29:00,552 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 01:29:00,553 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 01:29:00,553 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 01:29:00,553 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 01:29:00,623 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 01:29:00,639 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 01:29:00,645 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 01:29:00,646 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 01:29:00,647 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 01:29:00,648 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/string_true-unreach-call_true-termination.i [2018-09-19 01:29:01,001 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71863dc65/ece79dd01ae047d8b5fb9b811c7cde15/FLAGc10d06fa8 [2018-09-19 01:29:01,161 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 01:29:01,161 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/string_true-unreach-call_true-termination.i [2018-09-19 01:29:01,168 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71863dc65/ece79dd01ae047d8b5fb9b811c7cde15/FLAGc10d06fa8 [2018-09-19 01:29:01,183 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71863dc65/ece79dd01ae047d8b5fb9b811c7cde15 [2018-09-19 01:29:01,193 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 01:29:01,196 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 01:29:01,197 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 01:29:01,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 01:29:01,206 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 01:29:01,207 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:29:01" (1/1) ... [2018-09-19 01:29:01,210 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7328c9b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:01, skipping insertion in model container [2018-09-19 01:29:01,210 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:29:01" (1/1) ... [2018-09-19 01:29:01,223 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 01:29:01,418 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 01:29:01,433 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 01:29:01,443 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 01:29:01,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:01 WrapperNode [2018-09-19 01:29:01,457 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 01:29:01,458 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 01:29:01,458 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 01:29:01,458 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 01:29:01,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:01" (1/1) ... [2018-09-19 01:29:01,476 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:01" (1/1) ... [2018-09-19 01:29:01,484 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 01:29:01,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 01:29:01,485 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 01:29:01,485 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 01:29:01,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:01" (1/1) ... [2018-09-19 01:29:01,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:01" (1/1) ... [2018-09-19 01:29:01,498 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:01" (1/1) ... [2018-09-19 01:29:01,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:01" (1/1) ... [2018-09-19 01:29:01,505 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:01" (1/1) ... [2018-09-19 01:29:01,520 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:01" (1/1) ... [2018-09-19 01:29:01,522 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:01" (1/1) ... [2018-09-19 01:29:01,528 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 01:29:01,529 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 01:29:01,529 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 01:29:01,529 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 01:29:01,530 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:01" (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 01:29:01,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 01:29:01,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 01:29:01,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 01:29:01,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 01:29:01,657 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 01:29:01,657 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 01:29:01,657 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 01:29:01,657 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 01:29:02,153 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 01:29:02,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:29:02 BoogieIcfgContainer [2018-09-19 01:29:02,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 01:29:02,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 01:29:02,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 01:29:02,158 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 01:29:02,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 01:29:01" (1/3) ... [2018-09-19 01:29:02,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b75b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:29:02, skipping insertion in model container [2018-09-19 01:29:02,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:01" (2/3) ... [2018-09-19 01:29:02,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b75b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:29:02, skipping insertion in model container [2018-09-19 01:29:02,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:29:02" (3/3) ... [2018-09-19 01:29:02,162 INFO L112 eAbstractionObserver]: Analyzing ICFG string_true-unreach-call_true-termination.i [2018-09-19 01:29:02,172 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 01:29:02,181 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 01:29:02,225 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 01:29:02,226 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 01:29:02,226 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 01:29:02,226 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 01:29:02,226 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 01:29:02,226 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 01:29:02,227 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 01:29:02,227 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 01:29:02,227 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 01:29:02,246 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2018-09-19 01:29:02,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-19 01:29:02,254 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:29:02,255 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 01:29:02,256 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:29:02,262 INFO L82 PathProgramCache]: Analyzing trace with hash 511662962, now seen corresponding path program 1 times [2018-09-19 01:29:02,265 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:29:02,266 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-09-19 01:29:02,269 INFO L202 CegarAbsIntRunner]: [0], [4], [17], [22], [35], [40], [52], [54], [66], [71], [89], [91], [95], [98], [100], [106], [107], [108], [110] [2018-09-19 01:29:02,325 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:29:02,326 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:29:02,399 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:29:02,401 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Never found a fixpoint. Largest state had 7 variables. [2018-09-19 01:29:02,421 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:29:02,475 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 100% of their original sizes. [2018-09-19 01:29:02,475 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:29:02,478 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:29:02,480 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:29:02,480 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-19 01:29:02,480 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:29:02,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-19 01:29:02,490 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-19 01:29:02,491 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-19 01:29:02,493 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 2 states. [2018-09-19 01:29:02,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:29:02,515 INFO L93 Difference]: Finished difference Result 62 states and 89 transitions. [2018-09-19 01:29:02,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-19 01:29:02,517 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-09-19 01:29:02,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:29:02,525 INFO L225 Difference]: With dead ends: 62 [2018-09-19 01:29:02,526 INFO L226 Difference]: Without dead ends: 28 [2018-09-19 01:29:02,530 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-19 01:29:02,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-09-19 01:29:02,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-09-19 01:29:02,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-09-19 01:29:02,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2018-09-19 01:29:02,573 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 19 [2018-09-19 01:29:02,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:29:02,574 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2018-09-19 01:29:02,574 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-19 01:29:02,574 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2018-09-19 01:29:02,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-19 01:29:02,575 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:29:02,576 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 01:29:02,576 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:29:02,576 INFO L82 PathProgramCache]: Analyzing trace with hash 696326523, now seen corresponding path program 1 times [2018-09-19 01:29:02,577 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:29:02,577 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 25 with the following transitions: [2018-09-19 01:29:02,577 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [22], [26], [29], [40], [44], [48], [54], [58], [62], [71], [75], [79], [91], [95], [98], [100], [106], [107], [108], [110] [2018-09-19 01:29:02,580 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:29:02,580 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:29:02,598 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:29:02,602 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Never found a fixpoint. Largest state had 7 variables. [2018-09-19 01:29:02,626 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:29:02,649 INFO L232 lantSequenceWeakener]: Weakened 2 states. On average, predicates are now at 50% of their original sizes. [2018-09-19 01:29:02,649 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:29:02,666 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:29:02,666 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:29:02,666 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-19 01:29:02,667 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:29:02,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-19 01:29:02,668 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-19 01:29:02,668 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-19 01:29:02,668 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand 3 states. [2018-09-19 01:29:02,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:29:02,797 INFO L93 Difference]: Finished difference Result 59 states and 72 transitions. [2018-09-19 01:29:02,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-19 01:29:02,797 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2018-09-19 01:29:02,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:29:02,800 INFO L225 Difference]: With dead ends: 59 [2018-09-19 01:29:02,800 INFO L226 Difference]: Without dead ends: 39 [2018-09-19 01:29:02,802 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-19 01:29:02,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-09-19 01:29:02,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 32. [2018-09-19 01:29:02,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-09-19 01:29:02,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2018-09-19 01:29:02,811 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 24 [2018-09-19 01:29:02,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:29:02,811 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2018-09-19 01:29:02,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-19 01:29:02,811 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2018-09-19 01:29:02,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-19 01:29:02,813 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:29:02,813 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 01:29:02,813 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:29:02,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1830123429, now seen corresponding path program 1 times [2018-09-19 01:29:02,814 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:29:02,814 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 31 with the following transitions: [2018-09-19 01:29:02,814 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [13], [15], [22], [26], [29], [31], [33], [40], [44], [48], [54], [58], [62], [71], [75], [79], [91], [95], [98], [100], [106], [107], [108], [110] [2018-09-19 01:29:02,817 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:29:02,818 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:29:02,917 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:29:02,918 INFO L272 AbstractInterpreter]: Visited 27 different actions 65 times. Merged at 6 different actions 28 times. Widened at 2 different actions 2 times. Found 2 fixpoints after 2 different actions. Largest state had 11 variables. [2018-09-19 01:29:02,959 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:29:03,056 INFO L232 lantSequenceWeakener]: Weakened 23 states. On average, predicates are now at 55.65% of their original sizes. [2018-09-19 01:29:03,056 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:29:03,529 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:29:03,530 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:29:03,530 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 01:29:03,530 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:29:03,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 01:29:03,531 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 01:29:03,531 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-09-19 01:29:03,532 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand 11 states. [2018-09-19 01:29:04,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:29:04,276 INFO L93 Difference]: Finished difference Result 70 states and 85 transitions. [2018-09-19 01:29:04,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-19 01:29:04,277 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 30 [2018-09-19 01:29:04,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:29:04,279 INFO L225 Difference]: With dead ends: 70 [2018-09-19 01:29:04,279 INFO L226 Difference]: Without dead ends: 54 [2018-09-19 01:29:04,280 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2018-09-19 01:29:04,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-09-19 01:29:04,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 42. [2018-09-19 01:29:04,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-09-19 01:29:04,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2018-09-19 01:29:04,291 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 30 [2018-09-19 01:29:04,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:29:04,291 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2018-09-19 01:29:04,291 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 01:29:04,292 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2018-09-19 01:29:04,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-19 01:29:04,293 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:29:04,293 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 01:29:04,293 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:29:04,294 INFO L82 PathProgramCache]: Analyzing trace with hash -92759263, now seen corresponding path program 1 times [2018-09-19 01:29:04,294 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:29:04,294 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 33 with the following transitions: [2018-09-19 01:29:04,295 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [13], [15], [22], [26], [29], [31], [33], [40], [44], [48], [54], [58], [62], [64], [71], [75], [79], [91], [95], [98], [100], [106], [107], [108], [110] [2018-09-19 01:29:04,297 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:29:04,297 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:29:04,614 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:29:04,614 INFO L272 AbstractInterpreter]: Visited 28 different actions 258 times. Merged at 13 different actions 165 times. Widened at 4 different actions 35 times. Found 16 fixpoints after 4 different actions. Largest state had 12 variables. [2018-09-19 01:29:04,652 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:29:04,710 INFO L232 lantSequenceWeakener]: Weakened 25 states. On average, predicates are now at 55.2% of their original sizes. [2018-09-19 01:29:04,710 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:29:05,049 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:29:05,049 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:29:05,050 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 01:29:05,050 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:29:05,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 01:29:05,050 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 01:29:05,051 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-09-19 01:29:05,051 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 11 states. [2018-09-19 01:29:05,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:29:05,766 INFO L93 Difference]: Finished difference Result 54 states and 65 transitions. [2018-09-19 01:29:05,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-19 01:29:05,771 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 32 [2018-09-19 01:29:05,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:29:05,772 INFO L225 Difference]: With dead ends: 54 [2018-09-19 01:29:05,772 INFO L226 Difference]: Without dead ends: 0 [2018-09-19 01:29:05,773 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2018-09-19 01:29:05,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-19 01:29:05,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-19 01:29:05,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-19 01:29:05,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-19 01:29:05,774 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2018-09-19 01:29:05,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:29:05,774 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-19 01:29:05,774 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 01:29:05,774 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-19 01:29:05,775 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-19 01:29:05,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-19 01:29:05,960 WARN L178 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2018-09-19 01:29:06,242 WARN L178 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 7 [2018-09-19 01:29:06,414 WARN L178 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 20 [2018-09-19 01:29:06,570 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-19 01:29:06,570 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-19 01:29:06,570 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-19 01:29:06,570 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-19 01:29:06,570 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-19 01:29:06,570 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-19 01:29:06,571 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 14 58) no Hoare annotation was computed. [2018-09-19 01:29:06,571 INFO L426 ceAbstractionStarter]: For program point L23-1(lines 23 24) no Hoare annotation was computed. [2018-09-19 01:29:06,571 INFO L426 ceAbstractionStarter]: For program point L23-3(lines 23 24) no Hoare annotation was computed. [2018-09-19 01:29:06,571 INFO L422 ceAbstractionStarter]: At program point L23-4(lines 23 24) the Hoare annotation is: (let ((.cse0 (* 2 main_~found~0)) (.cse1 (* 2 main_~i~0))) (and (<= 0 .cse0) (<= .cse0 2) (<= 0 .cse1) (<= .cse1 10))) [2018-09-19 01:29:06,571 INFO L426 ceAbstractionStarter]: For program point L19-1(lines 19 20) no Hoare annotation was computed. [2018-09-19 01:29:06,571 INFO L426 ceAbstractionStarter]: For program point L23-5(lines 15 58) no Hoare annotation was computed. [2018-09-19 01:29:06,572 INFO L426 ceAbstractionStarter]: For program point L19-3(lines 19 20) no Hoare annotation was computed. [2018-09-19 01:29:06,572 INFO L422 ceAbstractionStarter]: At program point L19-4(lines 19 20) the Hoare annotation is: (let ((.cse0 (* 2 main_~found~0)) (.cse1 (* 2 main_~i~0))) (and (<= 0 .cse0) (<= .cse0 2) (<= 0 .cse1) (<= .cse1 10))) [2018-09-19 01:29:06,572 INFO L426 ceAbstractionStarter]: For program point L19-5(lines 15 58) no Hoare annotation was computed. [2018-09-19 01:29:06,572 INFO L426 ceAbstractionStarter]: For program point L32-1(lines 32 33) no Hoare annotation was computed. [2018-09-19 01:29:06,572 INFO L422 ceAbstractionStarter]: At program point L32-3(lines 32 33) the Hoare annotation is: (let ((.cse0 (* 2 main_~found~0)) (.cse1 (* 2 main_~i~0))) (and (<= 0 .cse0) (<= .cse0 2) (<= 0 .cse1) (<= .cse1 10))) [2018-09-19 01:29:06,573 INFO L426 ceAbstractionStarter]: For program point L32-4(lines 15 58) no Hoare annotation was computed. [2018-09-19 01:29:06,573 INFO L426 ceAbstractionStarter]: For program point L28-1(lines 28 29) no Hoare annotation was computed. [2018-09-19 01:29:06,573 INFO L422 ceAbstractionStarter]: At program point L28-3(lines 28 29) the Hoare annotation is: (let ((.cse0 (* 2 main_~found~0)) (.cse1 (* 2 main_~i~0))) (and (<= 0 .cse0) (<= .cse0 2) (<= 0 .cse1) (<= .cse1 10))) [2018-09-19 01:29:06,573 INFO L426 ceAbstractionStarter]: For program point L28-4(lines 28 29) no Hoare annotation was computed. [2018-09-19 01:29:06,573 INFO L426 ceAbstractionStarter]: For program point L41(lines 41 50) no Hoare annotation was computed. [2018-09-19 01:29:06,574 INFO L422 ceAbstractionStarter]: At program point L41-2(lines 39 51) the Hoare annotation is: (or (let ((.cse0 (* 2 main_~found~0))) (and (<= 0 .cse0) (<= .cse0 2))) (and (<= 0 (+ main_~j~0 main_~nc_B~0)) (<= main_~nc_B~0 main_~nc_A~0) (<= (+ main_~i~0 main_~j~0) 0) (= main_~i~0 0) (= main_~nc_A~0 0))) [2018-09-19 01:29:06,574 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 14 58) no Hoare annotation was computed. [2018-09-19 01:29:06,574 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 14 58) the Hoare annotation is: true [2018-09-19 01:29:06,574 INFO L422 ceAbstractionStarter]: At program point L55(line 55) the Hoare annotation is: (let ((.cse0 (* 2 main_~found~0))) (and (<= 0 .cse0) (<= .cse0 2))) [2018-09-19 01:29:06,574 INFO L426 ceAbstractionStarter]: For program point L55-1(line 55) no Hoare annotation was computed. [2018-09-19 01:29:06,574 INFO L426 ceAbstractionStarter]: For program point L39-1(lines 39 51) no Hoare annotation was computed. [2018-09-19 01:29:06,575 INFO L426 ceAbstractionStarter]: For program point L39-3(lines 39 51) no Hoare annotation was computed. [2018-09-19 01:29:06,575 INFO L429 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 4 9) the Hoare annotation is: true [2018-09-19 01:29:06,575 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2018-09-19 01:29:06,575 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 4 9) no Hoare annotation was computed. [2018-09-19 01:29:06,575 INFO L426 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2018-09-19 01:29:06,576 INFO L426 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2018-09-19 01:29:06,576 INFO L426 ceAbstractionStarter]: For program point L5-2(lines 4 9) no Hoare annotation was computed. [2018-09-19 01:29:06,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 01:29:06 BoogieIcfgContainer [2018-09-19 01:29:06,587 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 01:29:06,588 INFO L168 Benchmark]: Toolchain (without parser) took 5394.66 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 742.9 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -575.3 MB). Peak memory consumption was 167.6 MB. Max. memory is 7.1 GB. [2018-09-19 01:29:06,590 INFO L168 Benchmark]: CDTParser took 0.19 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 01:29:06,591 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.80 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 01:29:06,592 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.54 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 01:29:06,593 INFO L168 Benchmark]: Boogie Preprocessor took 43.97 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 01:29:06,593 INFO L168 Benchmark]: RCFGBuilder took 625.09 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 742.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -789.0 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2018-09-19 01:29:06,594 INFO L168 Benchmark]: TraceAbstraction took 4432.85 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 203.2 MB). Peak memory consumption was 203.2 MB. Max. memory is 7.1 GB. [2018-09-19 01:29:06,599 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 259.80 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 26.54 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 43.97 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 625.09 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 742.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -789.0 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4432.85 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 203.2 MB). Peak memory consumption was 203.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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: 39]: Loop Invariant Derived loop invariant: (0 <= 2 * found && 2 * found <= 2) || ((((0 <= j + nc_B && nc_B <= nc_A) && i + j <= 0) && i == 0) && nc_A == 0) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((0 <= 2 * found && 2 * found <= 2) && 0 <= 2 * i) && 2 * i <= 10 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: ((0 <= 2 * found && 2 * found <= 2) && 0 <= 2 * i) && 2 * i <= 10 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: ((0 <= 2 * found && 2 * found <= 2) && 0 <= 2 * i) && 2 * i <= 10 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: ((0 <= 2 * found && 2 * found <= 2) && 0 <= 2 * i) && 2 * i <= 10 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 35 locations, 1 error locations. SAFE Result, 4.3s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 1.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.7s HoareAnnotationTime, HoareTripleCheckerStatistics: 98 SDtfs, 151 SDslu, 203 SDs, 0 SdLazy, 269 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 113 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.7s AbstIntTime, 4 AbstIntIterations, 4 AbstIntStrong, 0.8351335133513352 AbsIntWeakeningRatio, 0.6435643564356436 AbsIntAvgWeakeningVarsNumRemoved, 7.4950495049504955 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 18 PreInvPairs, 36 NumberOfFragments, 132 HoareAnnotationTreeSize, 18 FomulaSimplifications, 489 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 11 FomulaSimplificationsInter, 349 FormulaSimplificationTreeSizeReductionInter, 0.5s 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/string_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_01-29-06-615.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/string_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_01-29-06-615.csv Received shutdown request...