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_OCT-OldIcfg.epf -i ../../../trunk/examples/svcomp/loops/veris.c_sendmail__tTflag_arr_one_loop_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 17:19:57,599 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 17:19:57,601 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 17:19:57,614 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 17:19:57,615 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 17:19:57,616 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 17:19:57,617 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 17:19:57,619 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 17:19:57,621 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 17:19:57,622 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 17:19:57,623 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 17:19:57,623 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 17:19:57,624 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 17:19:57,625 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 17:19:57,627 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 17:19:57,627 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 17:19:57,628 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 17:19:57,630 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 17:19:57,633 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 17:19:57,635 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 17:19:57,636 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 17:19:57,637 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 17:19:57,640 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-15 17:19:57,650 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-09-15 17:19:57,666 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 17:19:57,666 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 17:19:57,667 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 17:19:57,667 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 17:19:57,669 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 17:19:57,670 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 17:19:57,670 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-15 17:19:57,670 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 17:19:57,670 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-15 17:19:57,671 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 17:19:57,671 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 17:19:57,671 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 17:19:57,672 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 17:19:57,672 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 17:19:57,672 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 17:19:57,674 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 17:19:57,674 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 17:19:57,674 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 17:19:57,674 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 17:19:57,675 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 17:19:57,675 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 17:19:57,675 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 17:19:57,676 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 17:19:57,676 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 17:19:57,676 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 17:19:57,676 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 17:19:57,676 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 17:19:57,676 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 17:19:57,677 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 17:19:57,677 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 17:19:57,677 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 17:19:57,677 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 17:19:57,678 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 17:19:57,678 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 17:19:57,755 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 17:19:57,772 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 17:19:57,776 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 17:19:57,777 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 17:19:57,779 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 17:19:57,780 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/veris.c_sendmail__tTflag_arr_one_loop_true-unreach-call_true-termination.i [2018-09-15 17:19:58,134 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/994b33357/5239a7cd513f45fc8acf1e21b611a5ed/FLAG8c3492bb2 [2018-09-15 17:19:58,272 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 17:19:58,272 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_sendmail__tTflag_arr_one_loop_true-unreach-call_true-termination.i [2018-09-15 17:19:58,282 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/994b33357/5239a7cd513f45fc8acf1e21b611a5ed/FLAG8c3492bb2 [2018-09-15 17:19:58,297 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/994b33357/5239a7cd513f45fc8acf1e21b611a5ed [2018-09-15 17:19:58,308 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 17:19:58,312 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 17:19:58,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 17:19:58,313 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 17:19:58,324 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 17:19:58,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 05:19:58" (1/1) ... [2018-09-15 17:19:58,329 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1119bd7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:58, skipping insertion in model container [2018-09-15 17:19:58,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 05:19:58" (1/1) ... [2018-09-15 17:19:58,344 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 17:19:58,619 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 17:19:58,639 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 17:19:58,661 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 17:19:58,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:58 WrapperNode [2018-09-15 17:19:58,686 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 17:19:58,687 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 17:19:58,688 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 17:19:58,688 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 17:19:58,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:58" (1/1) ... [2018-09-15 17:19:58,709 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:58" (1/1) ... [2018-09-15 17:19:58,740 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 17:19:58,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 17:19:58,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 17:19:58,741 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 17:19:58,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:58" (1/1) ... [2018-09-15 17:19:58,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:58" (1/1) ... [2018-09-15 17:19:58,755 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:58" (1/1) ... [2018-09-15 17:19:58,755 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:58" (1/1) ... [2018-09-15 17:19:58,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:58" (1/1) ... [2018-09-15 17:19:58,772 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:58" (1/1) ... [2018-09-15 17:19:58,773 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:58" (1/1) ... [2018-09-15 17:19:58,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 17:19:58,776 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 17:19:58,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 17:19:58,776 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 17:19:58,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 17:19:58,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 17:19:58,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 17:19:58,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 17:19:58,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 17:19:58,930 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 17:19:58,930 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 17:19:58,930 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-15 17:19:58,931 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-15 17:19:59,358 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 17:19:59,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 05:19:59 BoogieIcfgContainer [2018-09-15 17:19:59,360 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 17:19:59,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 17:19:59,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 17:19:59,364 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 17:19:59,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 05:19:58" (1/3) ... [2018-09-15 17:19:59,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b9bc9ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 05:19:59, skipping insertion in model container [2018-09-15 17:19:59,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:58" (2/3) ... [2018-09-15 17:19:59,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b9bc9ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 05:19:59, skipping insertion in model container [2018-09-15 17:19:59,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 05:19:59" (3/3) ... [2018-09-15 17:19:59,368 INFO L112 eAbstractionObserver]: Analyzing ICFG veris.c_sendmail__tTflag_arr_one_loop_true-unreach-call_true-termination.i [2018-09-15 17:19:59,377 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 17:19:59,384 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 17:19:59,429 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 17:19:59,430 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 17:19:59,430 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 17:19:59,430 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 17:19:59,430 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 17:19:59,431 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 17:19:59,431 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 17:19:59,431 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 17:19:59,431 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 17:19:59,450 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-09-15 17:19:59,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-15 17:19:59,457 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 17:19:59,458 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 17:19:59,459 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 17:19:59,464 INFO L82 PathProgramCache]: Analyzing trace with hash -900586403, now seen corresponding path program 1 times [2018-09-15 17:19:59,467 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 17:19:59,468 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 14 with the following transitions: [2018-09-15 17:19:59,470 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [18], [20], [32], [37], [40], [42], [48], [49], [50], [52] [2018-09-15 17:19:59,520 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 17:19:59,520 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 17:19:59,624 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 17:19:59,626 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Never found a fixpoint. Largest state had 33 variables. [2018-09-15 17:19:59,639 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 17:19:59,742 INFO L232 lantSequenceWeakener]: Weakened 6 states. On average, predicates are now at 96.67% of their original sizes. [2018-09-15 17:19:59,742 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 17:19:59,777 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 17:19:59,779 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 17:19:59,779 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-15 17:19:59,779 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 17:19:59,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-15 17:19:59,793 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-15 17:19:59,794 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 17:19:59,797 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states. [2018-09-15 17:19:59,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 17:19:59,869 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2018-09-15 17:19:59,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-15 17:19:59,871 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-09-15 17:19:59,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 17:19:59,879 INFO L225 Difference]: With dead ends: 39 [2018-09-15 17:19:59,880 INFO L226 Difference]: Without dead ends: 17 [2018-09-15 17:19:59,884 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 17:19:59,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-09-15 17:19:59,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-09-15 17:19:59,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-09-15 17:19:59,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-09-15 17:19:59,926 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 13 [2018-09-15 17:19:59,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 17:19:59,927 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2018-09-15 17:19:59,927 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-15 17:19:59,928 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2018-09-15 17:19:59,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-15 17:19:59,928 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 17:19:59,929 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 17:19:59,929 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 17:19:59,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1574784468, now seen corresponding path program 1 times [2018-09-15 17:19:59,930 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 17:19:59,930 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 16 with the following transitions: [2018-09-15 17:19:59,930 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [12], [20], [24], [28], [37], [40], [42], [48], [49], [50], [52] [2018-09-15 17:19:59,933 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 17:19:59,933 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 17:19:59,962 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 17:20:00,159 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-15 17:20:00,159 INFO L272 AbstractInterpreter]: Visited 15 different actions 15 times. Never merged. Never widened. Never found a fixpoint. Largest state had 33 variables. [2018-09-15 17:20:00,196 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-15 17:20:00,214 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-15 17:20:00,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 05:20:00 BoogieIcfgContainer [2018-09-15 17:20:00,215 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 17:20:00,216 INFO L168 Benchmark]: Toolchain (without parser) took 1906.93 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 741.9 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -659.8 MB). Peak memory consumption was 82.1 MB. Max. memory is 7.1 GB. [2018-09-15 17:20:00,218 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-09-15 17:20:00,219 INFO L168 Benchmark]: CACSL2BoogieTranslator took 373.69 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-15 17:20:00,220 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.50 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 17:20:00,220 INFO L168 Benchmark]: Boogie Preprocessor took 35.50 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 17:20:00,221 INFO L168 Benchmark]: RCFGBuilder took 583.82 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 741.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -791.2 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2018-09-15 17:20:00,222 INFO L168 Benchmark]: TraceAbstraction took 854.39 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 120.8 MB). Peak memory consumption was 120.8 MB. Max. memory is 7.1 GB. [2018-09-15 17:20:00,228 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 373.69 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 52.50 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 35.50 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 583.82 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 741.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -791.2 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 854.39 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 120.8 MB). Peak memory consumption was 120.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 6]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L12] CALL char in[11]; [L12] RET char in[11]; [L13] char *s; [L14] unsigned char c; [L15] unsigned int i, j; [L16] int idx_in; [L18] i = 0 [L18] COND FALSE !(i < 10) [L22] CALL in[10] = 0 [L22] RET in[10] = 0 [L23] idx_in = 0 [L24] s = in [L25] i = 0 [L26] CALL, EXPR in[idx_in] [L26] RET, EXPR in[idx_in] [L26] c = in[idx_in] [L27] COND FALSE !(('0' <= c) && (c <= '9')) [L35] CALL __VERIFIER_assert (i >= 0) [L5] COND TRUE !(cond) [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 1 error locations. UNKNOWN Result, 0.7s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 21 SDtfs, 8 SDslu, 14 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.4s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.9505050505050505 AbsIntWeakeningRatio, 2.6666666666666665 AbsIntAvgWeakeningVarsNumRemoved, 4.583333333333333 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/veris.c_sendmail__tTflag_arr_one_loop_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_17-20-00-242.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/veris.c_sendmail__tTflag_arr_one_loop_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_17-20-00-242.csv Received shutdown request...