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_INTCON-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-lit/bhmr2007_true-unreach-call_true-termination.c.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 11:36:24,273 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 11:36:24,276 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 11:36:24,288 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 11:36:24,288 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 11:36:24,289 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 11:36:24,291 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 11:36:24,292 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 11:36:24,294 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 11:36:24,295 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 11:36:24,296 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 11:36:24,296 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 11:36:24,298 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 11:36:24,299 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 11:36:24,300 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 11:36:24,301 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 11:36:24,302 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 11:36:24,304 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 11:36:24,306 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 11:36:24,308 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 11:36:24,309 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 11:36:24,310 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 11:36:24,313 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 11:36:24,313 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 11:36:24,314 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 11:36:24,315 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 11:36:24,316 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 11:36:24,317 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 11:36:24,318 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 11:36:24,319 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 11:36:24,319 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 11:36:24,320 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-19 11:36:24,323 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf [2018-09-19 11:36:24,339 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 11:36:24,340 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 11:36:24,341 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 11:36:24,341 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 11:36:24,341 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 11:36:24,341 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 11:36:24,342 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 11:36:24,342 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-19 11:36:24,342 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 11:36:24,342 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 11:36:24,342 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 11:36:24,343 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 11:36:24,343 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 11:36:24,344 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 11:36:24,344 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 11:36:24,344 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 11:36:24,344 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 11:36:24,344 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 11:36:24,345 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 11:36:24,345 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 11:36:24,345 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 11:36:24,345 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 11:36:24,346 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 11:36:24,346 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 11:36:24,346 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 11:36:24,346 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 11:36:24,346 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 11:36:24,347 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 11:36:24,347 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 11:36:24,347 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 11:36:24,347 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 11:36:24,347 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 11:36:24,348 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 11:36:24,348 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 11:36:24,422 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 11:36:24,440 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 11:36:24,444 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 11:36:24,446 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 11:36:24,447 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 11:36:24,447 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/bhmr2007_true-unreach-call_true-termination.c.i [2018-09-19 11:36:24,785 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85c1856bd/b8d7e0c9ed5b4cf8922952159e15f361/FLAG779d65683 [2018-09-19 11:36:24,927 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 11:36:24,927 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/bhmr2007_true-unreach-call_true-termination.c.i [2018-09-19 11:36:24,934 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85c1856bd/b8d7e0c9ed5b4cf8922952159e15f361/FLAG779d65683 [2018-09-19 11:36:24,949 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85c1856bd/b8d7e0c9ed5b4cf8922952159e15f361 [2018-09-19 11:36:24,959 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 11:36:24,962 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 11:36:24,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 11:36:24,964 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 11:36:24,973 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 11:36:24,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 11:36:24" (1/1) ... [2018-09-19 11:36:24,977 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77a556cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:24, skipping insertion in model container [2018-09-19 11:36:24,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 11:36:24" (1/1) ... [2018-09-19 11:36:24,989 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 11:36:25,243 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 11:36:25,263 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 11:36:25,269 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 11:36:25,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:25 WrapperNode [2018-09-19 11:36:25,286 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 11:36:25,287 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 11:36:25,287 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 11:36:25,288 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 11:36:25,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:25" (1/1) ... [2018-09-19 11:36:25,306 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:25" (1/1) ... [2018-09-19 11:36:25,313 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 11:36:25,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 11:36:25,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 11:36:25,314 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 11:36:25,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:25" (1/1) ... [2018-09-19 11:36:25,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:25" (1/1) ... [2018-09-19 11:36:25,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:25" (1/1) ... [2018-09-19 11:36:25,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:25" (1/1) ... [2018-09-19 11:36:25,328 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:25" (1/1) ... [2018-09-19 11:36:25,334 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:25" (1/1) ... [2018-09-19 11:36:25,336 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:25" (1/1) ... [2018-09-19 11:36:25,337 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 11:36:25,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 11:36:25,340 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 11:36:25,340 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 11:36:25,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:25" (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 11:36:25,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 11:36:25,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 11:36:25,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 11:36:25,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 11:36:25,400 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 11:36:25,401 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 11:36:25,401 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 11:36:25,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 11:36:25,767 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 11:36:25,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 11:36:25 BoogieIcfgContainer [2018-09-19 11:36:25,768 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 11:36:25,769 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 11:36:25,770 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 11:36:25,773 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 11:36:25,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 11:36:24" (1/3) ... [2018-09-19 11:36:25,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55ab5242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 11:36:25, skipping insertion in model container [2018-09-19 11:36:25,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:25" (2/3) ... [2018-09-19 11:36:25,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55ab5242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 11:36:25, skipping insertion in model container [2018-09-19 11:36:25,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 11:36:25" (3/3) ... [2018-09-19 11:36:25,777 INFO L112 eAbstractionObserver]: Analyzing ICFG bhmr2007_true-unreach-call_true-termination.c.i [2018-09-19 11:36:25,789 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 11:36:25,798 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 11:36:25,851 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 11:36:25,852 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 11:36:25,852 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 11:36:25,852 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 11:36:25,853 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 11:36:25,853 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 11:36:25,853 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 11:36:25,853 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 11:36:25,853 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 11:36:25,880 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-09-19 11:36:25,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-19 11:36:25,886 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:36:25,887 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 11:36:25,888 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:36:25,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1421497933, now seen corresponding path program 1 times [2018-09-19 11:36:25,898 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:36:25,899 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 12 with the following transitions: [2018-09-19 11:36:25,901 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [27], [32], [35], [37], [43], [44], [45], [47] [2018-09-19 11:36:25,946 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 11:36:25,946 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:36:26,032 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:36:26,033 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Never found a fixpoint. Largest state had 5 variables. [2018-09-19 11:36:26,047 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:36:26,099 INFO L232 lantSequenceWeakener]: Weakened 2 states. On average, predicates are now at 25% of their original sizes. [2018-09-19 11:36:26,099 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:36:26,124 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:36:26,125 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:36:26,125 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-19 11:36:26,126 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:36:26,130 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-19 11:36:26,136 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-19 11:36:26,136 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-19 11:36:26,138 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 4 states. [2018-09-19 11:36:26,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:36:26,259 INFO L93 Difference]: Finished difference Result 43 states and 53 transitions. [2018-09-19 11:36:26,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-19 11:36:26,261 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-09-19 11:36:26,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:36:26,272 INFO L225 Difference]: With dead ends: 43 [2018-09-19 11:36:26,273 INFO L226 Difference]: Without dead ends: 19 [2018-09-19 11:36:26,277 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-19 11:36:26,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-09-19 11:36:26,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 15. [2018-09-19 11:36:26,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-09-19 11:36:26,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-09-19 11:36:26,310 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 11 [2018-09-19 11:36:26,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:36:26,311 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2018-09-19 11:36:26,311 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-19 11:36:26,311 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2018-09-19 11:36:26,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-19 11:36:26,312 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:36:26,312 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 11:36:26,313 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:36:26,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1574385422, now seen corresponding path program 1 times [2018-09-19 11:36:26,314 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:36:26,314 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 13 with the following transitions: [2018-09-19 11:36:26,314 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [32], [35], [37], [43], [44], [45], [47] [2018-09-19 11:36:26,316 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 11:36:26,316 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:36:26,336 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-19 11:36:26,337 INFO L272 AbstractInterpreter]: Visited 12 different actions 12 times. Never merged. Never widened. Never found a fixpoint. Largest state had 5 variables. [2018-09-19 11:36:26,360 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-19 11:36:26,378 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-19 11:36:26,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 11:36:26 BoogieIcfgContainer [2018-09-19 11:36:26,379 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 11:36:26,380 INFO L168 Benchmark]: Toolchain (without parser) took 1419.91 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 752.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -756.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 11:36:26,382 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 11:36:26,382 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.31 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 11:36:26,383 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.86 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 11:36:26,384 INFO L168 Benchmark]: Boogie Preprocessor took 25.58 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 11:36:26,385 INFO L168 Benchmark]: RCFGBuilder took 428.56 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 752.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -802.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2018-09-19 11:36:26,386 INFO L168 Benchmark]: TraceAbstraction took 609.56 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: 35.8 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. [2018-09-19 11:36:26,393 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 323.31 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 25.86 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 25.58 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 428.56 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 752.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -802.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 609.56 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: 35.8 MB). Peak memory consumption was 35.8 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 i, n, a, b; [L12] i = 0 [L12] a = 0 [L12] b = 0 [L12] n = __VERIFIER_nondet_int() [L13] COND FALSE !(!(n >= 0 && n <= 1000000)) [L14] COND FALSE !(i < n) [L24] CALL __VERIFIER_assert(a + b == 3*n) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. UNKNOWN Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 21 SDtfs, 12 SDslu, 19 SDs, 0 SdLazy, 12 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 0.6 AbsIntAvgWeakeningVarsNumRemoved, 0.2 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 4 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/bhmr2007_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_11-36-26-415.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/bhmr2007_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_11-36-26-415.csv Received shutdown request...