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_CON-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-lit/hhk2008_true-unreach-call_true-termination.c.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 06:51:18,442 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 06:51:18,445 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 06:51:18,460 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 06:51:18,461 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 06:51:18,462 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 06:51:18,463 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 06:51:18,465 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 06:51:18,467 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 06:51:18,468 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 06:51:18,469 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 06:51:18,469 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 06:51:18,470 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 06:51:18,471 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 06:51:18,472 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 06:51:18,473 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 06:51:18,474 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 06:51:18,476 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 06:51:18,478 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 06:51:18,479 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 06:51:18,481 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 06:51:18,484 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 06:51:18,490 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 06:51:18,490 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 06:51:18,491 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 06:51:18,492 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 06:51:18,494 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 06:51:18,495 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 06:51:18,496 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 06:51:18,498 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 06:51:18,498 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 06:51:18,500 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-19 06:51:18,505 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_CON-OldIcfg.epf [2018-09-19 06:51:18,535 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 06:51:18,535 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 06:51:18,536 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 06:51:18,536 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 06:51:18,536 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 06:51:18,536 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 06:51:18,537 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 06:51:18,537 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-19 06:51:18,537 INFO L133 SettingsManager]: * Abstract domain=CongruenceDomain [2018-09-19 06:51:18,537 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 06:51:18,537 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 06:51:18,538 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 06:51:18,538 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 06:51:18,539 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 06:51:18,539 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 06:51:18,539 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 06:51:18,540 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 06:51:18,540 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 06:51:18,540 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 06:51:18,540 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 06:51:18,540 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 06:51:18,542 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 06:51:18,542 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 06:51:18,543 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 06:51:18,543 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 06:51:18,543 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 06:51:18,543 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 06:51:18,544 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 06:51:18,544 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 06:51:18,544 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 06:51:18,544 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 06:51:18,544 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 06:51:18,544 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 06:51:18,545 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 06:51:18,545 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 06:51:18,595 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 06:51:18,608 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 06:51:18,611 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 06:51:18,613 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 06:51:18,614 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 06:51:18,614 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/hhk2008_true-unreach-call_true-termination.c.i [2018-09-19 06:51:18,978 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfd9d5541/0bd251f19fcb455e99205ca8783e94d6/FLAGecbcbef52 [2018-09-19 06:51:19,138 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 06:51:19,139 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/hhk2008_true-unreach-call_true-termination.c.i [2018-09-19 06:51:19,146 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfd9d5541/0bd251f19fcb455e99205ca8783e94d6/FLAGecbcbef52 [2018-09-19 06:51:19,163 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfd9d5541/0bd251f19fcb455e99205ca8783e94d6 [2018-09-19 06:51:19,174 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 06:51:19,178 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 06:51:19,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 06:51:19,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 06:51:19,186 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 06:51:19,187 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 06:51:19" (1/1) ... [2018-09-19 06:51:19,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d602434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:51:19, skipping insertion in model container [2018-09-19 06:51:19,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 06:51:19" (1/1) ... [2018-09-19 06:51:19,202 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 06:51:19,398 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 06:51:19,415 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 06:51:19,421 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 06:51:19,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:51:19 WrapperNode [2018-09-19 06:51:19,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 06:51:19,435 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 06:51:19,435 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 06:51:19,435 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 06:51:19,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:51:19" (1/1) ... [2018-09-19 06:51:19,451 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:51:19" (1/1) ... [2018-09-19 06:51:19,457 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 06:51:19,458 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 06:51:19,458 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 06:51:19,458 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 06:51:19,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:51:19" (1/1) ... [2018-09-19 06:51:19,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:51:19" (1/1) ... [2018-09-19 06:51:19,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:51:19" (1/1) ... [2018-09-19 06:51:19,470 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:51:19" (1/1) ... [2018-09-19 06:51:19,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:51:19" (1/1) ... [2018-09-19 06:51:19,477 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:51:19" (1/1) ... [2018-09-19 06:51:19,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:51:19" (1/1) ... [2018-09-19 06:51:19,479 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 06:51:19,480 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 06:51:19,480 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 06:51:19,480 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 06:51:19,481 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:51:19" (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 06:51:19,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 06:51:19,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 06:51:19,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 06:51:19,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 06:51:19,562 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 06:51:19,562 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 06:51:19,562 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 06:51:19,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 06:51:19,863 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 06:51:19,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 06:51:19 BoogieIcfgContainer [2018-09-19 06:51:19,864 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 06:51:19,865 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 06:51:19,865 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 06:51:19,868 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 06:51:19,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 06:51:19" (1/3) ... [2018-09-19 06:51:19,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@382f8d8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 06:51:19, skipping insertion in model container [2018-09-19 06:51:19,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:51:19" (2/3) ... [2018-09-19 06:51:19,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@382f8d8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 06:51:19, skipping insertion in model container [2018-09-19 06:51:19,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 06:51:19" (3/3) ... [2018-09-19 06:51:19,872 INFO L112 eAbstractionObserver]: Analyzing ICFG hhk2008_true-unreach-call_true-termination.c.i [2018-09-19 06:51:19,883 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 06:51:19,891 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 06:51:19,938 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 06:51:19,939 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 06:51:19,939 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 06:51:19,939 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 06:51:19,939 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 06:51:19,940 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 06:51:19,940 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 06:51:19,940 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 06:51:19,940 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 06:51:19,959 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-09-19 06:51:19,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-19 06:51:19,966 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:51:19,967 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 06:51:19,968 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:51:19,974 INFO L82 PathProgramCache]: Analyzing trace with hash -237401155, now seen corresponding path program 1 times [2018-09-19 06:51:19,976 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:51:19,977 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 13 with the following transitions: [2018-09-19 06:51:19,979 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [24], [29], [32], [34], [40], [41], [42], [44] [2018-09-19 06:51:20,010 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-09-19 06:51:20,010 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:51:20,067 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:51:20,068 INFO L272 AbstractInterpreter]: Visited 8 different actions 8 times. Never merged. Never widened. Never found a fixpoint. Largest state had 6 variables. [2018-09-19 06:51:20,114 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:51:20,171 INFO L224 lantSequenceWeakener]: Could never weaken! [2018-09-19 06:51:20,172 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:51:20,174 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:51:20,175 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:51:20,175 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-19 06:51:20,176 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:51:20,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-19 06:51:20,187 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-19 06:51:20,188 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-19 06:51:20,191 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2018-09-19 06:51:20,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:51:20,215 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2018-09-19 06:51:20,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-19 06:51:20,217 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-09-19 06:51:20,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:51:20,225 INFO L225 Difference]: With dead ends: 33 [2018-09-19 06:51:20,225 INFO L226 Difference]: Without dead ends: 14 [2018-09-19 06:51:20,229 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 11 GetRequests, 11 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 06:51:20,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-09-19 06:51:20,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-09-19 06:51:20,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-09-19 06:51:20,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-09-19 06:51:20,264 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2018-09-19 06:51:20,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:51:20,265 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-09-19 06:51:20,265 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-19 06:51:20,265 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-09-19 06:51:20,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-19 06:51:20,266 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:51:20,266 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 06:51:20,267 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:51:20,267 INFO L82 PathProgramCache]: Analyzing trace with hash 979745029, now seen corresponding path program 1 times [2018-09-19 06:51:20,267 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:51:20,268 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 14 with the following transitions: [2018-09-19 06:51:20,268 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [20], [29], [32], [34], [40], [41], [42], [44] [2018-09-19 06:51:20,269 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-09-19 06:51:20,269 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:51:20,284 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-19 06:51:20,285 INFO L272 AbstractInterpreter]: Visited 13 different actions 13 times. Never merged. Never widened. Never found a fixpoint. Largest state had 6 variables. [2018-09-19 06:51:20,313 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-19 06:51:20,328 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-19 06:51:20,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 06:51:20 BoogieIcfgContainer [2018-09-19 06:51:20,329 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 06:51:20,330 INFO L168 Benchmark]: Toolchain (without parser) took 1154.69 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 719.8 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -741.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 06:51:20,332 INFO L168 Benchmark]: CDTParser took 0.27 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 06:51:20,333 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.94 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 06:51:20,333 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.56 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 06:51:20,334 INFO L168 Benchmark]: Boogie Preprocessor took 21.65 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 06:51:20,335 INFO L168 Benchmark]: RCFGBuilder took 384.08 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 719.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -769.2 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2018-09-19 06:51:20,336 INFO L168 Benchmark]: TraceAbstraction took 464.39 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 7.1 GB. [2018-09-19 06:51:20,341 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 255.94 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 22.56 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 21.65 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 384.08 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 719.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -769.2 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 464.39 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 5]: 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: [L11] int a = __VERIFIER_nondet_int(); [L12] int b = __VERIFIER_nondet_int(); [L13] int res, cnt; [L14] COND FALSE !(!(a <= 1000000)) [L15] COND FALSE !(!(0 <= b && b <= 1000000)) [L16] res = a [L17] cnt = b [L18] COND FALSE !(cnt > 0) [L22] CALL __VERIFIER_assert(res == a + b) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. UNKNOWN Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 23 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 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, 0.1s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.7272727272727273 AbsIntAvgWeakeningVarsNumRemoved, 0.0 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/hhk2008_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-ToothlessTaipan_CON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_06-51-20-363.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/hhk2008_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-ToothlessTaipan_CON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_06-51-20-363.csv Received shutdown request...