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/n.c11_true-unreach-call_false-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ddc4263 [2018-08-08 03:30:09,045 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-08-08 03:30:09,049 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-08-08 03:30:09,065 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-08-08 03:30:09,066 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-08-08 03:30:09,067 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-08-08 03:30:09,068 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-08-08 03:30:09,070 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-08-08 03:30:09,071 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-08-08 03:30:09,072 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-08-08 03:30:09,073 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-08-08 03:30:09,073 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-08-08 03:30:09,074 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-08-08 03:30:09,077 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-08-08 03:30:09,078 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-08-08 03:30:09,082 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-08-08 03:30:09,084 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-08-08 03:30:09,085 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-08-08 03:30:09,087 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-08-08 03:30:09,091 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-08-08 03:30:09,092 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-08-08 03:30:09,093 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-08-08 03:30:09,095 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-08-08 03:30:09,095 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-08-08 03:30:09,095 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-08-08 03:30:09,096 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-08-08 03:30:09,097 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-08-08 03:30:09,098 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-08-08 03:30:09,099 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-08-08 03:30:09,100 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-08-08 03:30:09,100 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-08-08 03:30:09,101 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-08-08 03:30:09,105 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 [2018-08-08 03:30:09,120 INFO L110 SettingsManager]: Loading preferences was successful [2018-08-08 03:30:09,120 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-08-08 03:30:09,121 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-08-08 03:30:09,121 INFO L133 SettingsManager]: * User list type=DISABLED [2018-08-08 03:30:09,121 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-08-08 03:30:09,122 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-08-08 03:30:09,122 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-08-08 03:30:09,122 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-08-08 03:30:09,122 INFO L133 SettingsManager]: * Log string format=TERM [2018-08-08 03:30:09,122 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-08-08 03:30:09,122 INFO L133 SettingsManager]: * Interval Domain=false [2018-08-08 03:30:09,123 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-08-08 03:30:09,124 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-08-08 03:30:09,124 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-08-08 03:30:09,124 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-08-08 03:30:09,125 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-08-08 03:30:09,125 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-08-08 03:30:09,125 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-08-08 03:30:09,125 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-08-08 03:30:09,127 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-08-08 03:30:09,127 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-08-08 03:30:09,127 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-08-08 03:30:09,127 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-08-08 03:30:09,127 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-08 03:30:09,128 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-08-08 03:30:09,128 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-08-08 03:30:09,128 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-08-08 03:30:09,128 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-08-08 03:30:09,129 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-08-08 03:30:09,129 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-08-08 03:30:09,129 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-08-08 03:30:09,129 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-08-08 03:30:09,129 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-08-08 03:30:09,186 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-08-08 03:30:09,199 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-08-08 03:30:09,203 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-08-08 03:30:09,204 INFO L271 PluginConnector]: Initializing CDTParser... [2018-08-08 03:30:09,205 INFO L276 PluginConnector]: CDTParser initialized [2018-08-08 03:30:09,207 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/n.c11_true-unreach-call_false-termination.i [2018-08-08 03:30:09,578 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa0961870/a9d9c9de5127457fae0b78917d7d1a1a/FLAG19f9c3123 [2018-08-08 03:30:09,733 INFO L276 CDTParser]: Found 1 translation units. [2018-08-08 03:30:09,734 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/n.c11_true-unreach-call_false-termination.i [2018-08-08 03:30:09,740 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa0961870/a9d9c9de5127457fae0b78917d7d1a1a/FLAG19f9c3123 [2018-08-08 03:30:09,755 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa0961870/a9d9c9de5127457fae0b78917d7d1a1a [2018-08-08 03:30:09,764 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-08-08 03:30:09,766 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-08-08 03:30:09,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-08-08 03:30:09,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-08-08 03:30:09,775 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-08-08 03:30:09,776 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 03:30:09" (1/1) ... [2018-08-08 03:30:09,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@499bc742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:09, skipping insertion in model container [2018-08-08 03:30:09,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 03:30:09" (1/1) ... [2018-08-08 03:30:09,945 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-08-08 03:30:09,987 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 03:30:10,003 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-08-08 03:30:10,008 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 03:30:10,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:10 WrapperNode [2018-08-08 03:30:10,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-08-08 03:30:10,022 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-08-08 03:30:10,022 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-08-08 03:30:10,022 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-08-08 03:30:10,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:10" (1/1) ... [2018-08-08 03:30:10,039 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:10" (1/1) ... [2018-08-08 03:30:10,046 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-08-08 03:30:10,046 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-08-08 03:30:10,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-08-08 03:30:10,047 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-08-08 03:30:10,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:10" (1/1) ... [2018-08-08 03:30:10,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:10" (1/1) ... [2018-08-08 03:30:10,058 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:10" (1/1) ... [2018-08-08 03:30:10,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:10" (1/1) ... [2018-08-08 03:30:10,060 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:10" (1/1) ... [2018-08-08 03:30:10,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:10" (1/1) ... [2018-08-08 03:30:10,067 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:10" (1/1) ... [2018-08-08 03:30:10,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-08-08 03:30:10,069 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-08-08 03:30:10,069 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-08-08 03:30:10,069 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-08-08 03:30:10,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:10" (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 [2018-08-08 03:30:10,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-08-08 03:30:10,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-08-08 03:30:10,151 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_n_c___true_unreach_call_false_termination_i____VERIFIER_assert [2018-08-08 03:30:10,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_n_c___true_unreach_call_false_termination_i____VERIFIER_assert [2018-08-08 03:30:10,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-08-08 03:30:10,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-08-08 03:30:10,152 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-08-08 03:30:10,152 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-08-08 03:30:10,539 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-08-08 03:30:10,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 03:30:10 BoogieIcfgContainer [2018-08-08 03:30:10,540 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-08-08 03:30:10,541 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-08-08 03:30:10,541 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-08-08 03:30:10,553 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-08-08 03:30:10,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.08 03:30:09" (1/3) ... [2018-08-08 03:30:10,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2160d312 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 03:30:10, skipping insertion in model container [2018-08-08 03:30:10,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:10" (2/3) ... [2018-08-08 03:30:10,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2160d312 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 03:30:10, skipping insertion in model container [2018-08-08 03:30:10,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 03:30:10" (3/3) ... [2018-08-08 03:30:10,562 INFO L112 eAbstractionObserver]: Analyzing ICFG n.c11_true-unreach-call_false-termination.i [2018-08-08 03:30:10,587 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-08-08 03:30:10,612 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-08-08 03:30:10,669 INFO L129 ementStrategyFactory]: Using default assertion order modulation [2018-08-08 03:30:10,670 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-08-08 03:30:10,670 INFO L382 AbstractCegarLoop]: Hoare is true [2018-08-08 03:30:10,670 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-08-08 03:30:10,671 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-08-08 03:30:10,671 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-08-08 03:30:10,671 INFO L386 AbstractCegarLoop]: Difference is false [2018-08-08 03:30:10,671 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-08-08 03:30:10,671 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-08-08 03:30:10,699 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-08-08 03:30:10,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-08-08 03:30:10,705 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 03:30:10,706 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 03:30:10,707 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_n_c___true_unreach_call_false_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 03:30:10,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1683042458, now seen corresponding path program 1 times [2018-08-08 03:30:10,715 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 03:30:10,716 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 11 with the following transitions: [2018-08-08 03:30:10,718 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [34], [39], [40], [41], [43] [2018-08-08 03:30:10,777 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-08-08 03:30:10,777 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 03:30:10,864 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 03:30:10,867 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Never found a fixpoint. Largest state had 3 variables. [2018-08-08 03:30:10,883 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 03:30:10,935 INFO L224 lantSequenceWeakener]: Could never weaken! [2018-08-08 03:30:10,935 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 03:30:10,952 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 03:30:10,954 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 03:30:10,954 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-08-08 03:30:10,954 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 03:30:10,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-08-08 03:30:10,967 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-08-08 03:30:10,968 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-08-08 03:30:10,970 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2018-08-08 03:30:11,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 03:30:11,038 INFO L93 Difference]: Finished difference Result 45 states and 57 transitions. [2018-08-08 03:30:11,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-08-08 03:30:11,041 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-08-08 03:30:11,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 03:30:11,051 INFO L225 Difference]: With dead ends: 45 [2018-08-08 03:30:11,053 INFO L226 Difference]: Without dead ends: 19 [2018-08-08 03:30:11,057 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-08-08 03:30:11,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-08-08 03:30:11,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2018-08-08 03:30:11,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-08-08 03:30:11,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2018-08-08 03:30:11,095 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 10 [2018-08-08 03:30:11,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 03:30:11,096 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2018-08-08 03:30:11,096 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-08-08 03:30:11,097 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-08-08 03:30:11,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-08-08 03:30:11,097 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 03:30:11,098 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 03:30:11,098 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_n_c___true_unreach_call_false_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 03:30:11,099 INFO L82 PathProgramCache]: Analyzing trace with hash -1081368048, now seen corresponding path program 1 times [2018-08-08 03:30:11,099 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 03:30:11,099 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 12 with the following transitions: [2018-08-08 03:30:11,099 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [19], [23], [39], [40], [41], [43] [2018-08-08 03:30:11,101 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-08-08 03:30:11,101 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 03:30:11,124 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 03:30:11,155 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-08-08 03:30:11,155 INFO L272 AbstractInterpreter]: Visited 11 different actions 11 times. Never merged. Never widened. Never found a fixpoint. Largest state had 4 variables. [2018-08-08 03:30:11,195 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-08-08 03:30:11,211 WARN L205 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-08-08 03:30:11,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.08 03:30:11 BoogieIcfgContainer [2018-08-08 03:30:11,212 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-08-08 03:30:11,212 INFO L168 Benchmark]: Toolchain (without parser) took 1447.51 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 780.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -779.8 MB). Peak memory consumption was 883.8 kB. Max. memory is 7.1 GB. [2018-08-08 03:30:11,215 INFO L168 Benchmark]: CDTParser took 0.21 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. [2018-08-08 03:30:11,216 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.73 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-08-08 03:30:11,217 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.00 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. [2018-08-08 03:30:11,217 INFO L168 Benchmark]: Boogie Preprocessor took 22.47 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. [2018-08-08 03:30:11,218 INFO L168 Benchmark]: RCFGBuilder took 470.67 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 780.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -822.7 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2018-08-08 03:30:11,219 INFO L168 Benchmark]: TraceAbstraction took 671.03 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 32.4 MB). Peak memory consumption was 32.4 MB. Max. memory is 7.1 GB. [2018-08-08 03:30:11,224 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 253.73 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 24.00 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 22.47 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 470.67 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 780.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -822.7 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 671.03 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 32.4 MB). Peak memory consumption was 32.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 4]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L10] int a[5]; [L11] unsigned int len=0; [L12] int i; [L13] COND FALSE !(__VERIFIER_nondet_bool()) [L19] CALL __VERIFIER_assert(len>=0 && len<5) [L3] COND TRUE !(cond) [L4] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. UNKNOWN Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 21 SDtfs, 6 SDslu, 18 SDs, 0 SdLazy, 4 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.6666666666666666 AbsIntWeakeningRatio, 0.5555555555555556 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/n.c11_true-unreach-call_false-termination.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-08-08_03-30-11-237.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/n.c11_true-unreach-call_false-termination.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-08-08_03-30-11-237.csv Received shutdown request...