java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-new/half_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 08:01:46,166 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 08:01:46,168 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 08:01:46,187 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 08:01:46,188 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 08:01:46,190 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 08:01:46,191 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 08:01:46,193 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 08:01:46,194 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 08:01:46,195 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 08:01:46,196 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 08:01:46,196 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 08:01:46,197 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 08:01:46,198 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 08:01:46,200 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 08:01:46,200 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 08:01:46,201 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 08:01:46,203 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 08:01:46,205 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 08:01:46,207 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 08:01:46,208 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 08:01:46,209 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 08:01:46,212 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 08:01:46,212 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 08:01:46,213 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 08:01:46,214 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 08:01:46,216 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 08:01:46,217 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 08:01:46,218 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 08:01:46,222 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 08:01:46,223 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 08:01:46,224 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-19 08:01:46,230 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-09-19 08:01:46,266 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 08:01:46,266 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 08:01:46,267 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 08:01:46,269 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 08:01:46,269 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 08:01:46,269 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 08:01:46,269 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 08:01:46,270 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 08:01:46,270 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 08:01:46,270 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 08:01:46,271 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 08:01:46,271 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 08:01:46,271 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 08:01:46,272 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 08:01:46,272 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 08:01:46,273 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 08:01:46,274 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 08:01:46,274 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 08:01:46,274 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 08:01:46,274 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 08:01:46,274 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 08:01:46,275 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 08:01:46,275 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 08:01:46,275 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 08:01:46,276 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 08:01:46,276 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 08:01:46,276 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 08:01:46,277 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 08:01:46,277 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 08:01:46,277 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 08:01:46,277 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 08:01:46,277 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 08:01:46,278 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 08:01:46,278 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 08:01:46,278 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 08:01:46,347 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 08:01:46,362 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 08:01:46,371 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 08:01:46,373 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 08:01:46,373 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 08:01:46,375 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/half_true-unreach-call_true-termination.i [2018-09-19 08:01:46,723 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7efb93fd/f28a990923bb4f52bce95044cdd97aea/FLAG2562a703e [2018-09-19 08:01:46,919 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 08:01:46,922 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/half_true-unreach-call_true-termination.i [2018-09-19 08:01:46,931 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7efb93fd/f28a990923bb4f52bce95044cdd97aea/FLAG2562a703e [2018-09-19 08:01:46,957 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7efb93fd/f28a990923bb4f52bce95044cdd97aea [2018-09-19 08:01:46,971 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 08:01:46,976 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 08:01:46,978 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 08:01:46,979 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 08:01:46,987 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 08:01:46,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:01:46" (1/1) ... [2018-09-19 08:01:46,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76a7336e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:46, skipping insertion in model container [2018-09-19 08:01:46,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:01:46" (1/1) ... [2018-09-19 08:01:47,006 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 08:01:47,218 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:01:47,237 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 08:01:47,242 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:01:47,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:47 WrapperNode [2018-09-19 08:01:47,256 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 08:01:47,258 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 08:01:47,258 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 08:01:47,258 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 08:01:47,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:47" (1/1) ... [2018-09-19 08:01:47,274 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:47" (1/1) ... [2018-09-19 08:01:47,281 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 08:01:47,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 08:01:47,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 08:01:47,282 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 08:01:47,293 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:47" (1/1) ... [2018-09-19 08:01:47,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:47" (1/1) ... [2018-09-19 08:01:47,294 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:47" (1/1) ... [2018-09-19 08:01:47,294 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:47" (1/1) ... [2018-09-19 08:01:47,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:47" (1/1) ... [2018-09-19 08:01:47,302 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:47" (1/1) ... [2018-09-19 08:01:47,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:47" (1/1) ... [2018-09-19 08:01:47,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 08:01:47,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 08:01:47,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 08:01:47,306 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 08:01:47,307 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:47" (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 08:01:47,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 08:01:47,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 08:01:47,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 08:01:47,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 08:01:47,374 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 08:01:47,374 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 08:01:47,375 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 08:01:47,375 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 08:01:47,738 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 08:01:47,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 08:01:47 BoogieIcfgContainer [2018-09-19 08:01:47,739 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 08:01:47,740 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 08:01:47,741 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 08:01:47,744 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 08:01:47,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 08:01:46" (1/3) ... [2018-09-19 08:01:47,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dcea1b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 08:01:47, skipping insertion in model container [2018-09-19 08:01:47,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:47" (2/3) ... [2018-09-19 08:01:47,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dcea1b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 08:01:47, skipping insertion in model container [2018-09-19 08:01:47,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 08:01:47" (3/3) ... [2018-09-19 08:01:47,749 INFO L112 eAbstractionObserver]: Analyzing ICFG half_true-unreach-call_true-termination.i [2018-09-19 08:01:47,769 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 08:01:47,782 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 08:01:47,850 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 08:01:47,851 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 08:01:47,851 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 08:01:47,851 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 08:01:47,851 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 08:01:47,851 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 08:01:47,852 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 08:01:47,852 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 08:01:47,852 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 08:01:47,871 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-09-19 08:01:47,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-19 08:01:47,878 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:01:47,879 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:01:47,880 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:01:47,885 INFO L82 PathProgramCache]: Analyzing trace with hash 439143249, now seen corresponding path program 1 times [2018-09-19 08:01:47,888 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:01:47,890 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 12 with the following transitions: [2018-09-19 08:01:47,892 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [26], [31], [34], [36], [42], [43], [44], [46] [2018-09-19 08:01:47,945 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:01:47,946 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:01:48,003 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:01:48,004 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Never found a fixpoint. Largest state had 4 variables. [2018-09-19 08:01:48,018 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:01:48,067 INFO L232 lantSequenceWeakener]: Weakened 2 states. On average, predicates are now at 33.33% of their original sizes. [2018-09-19 08:01:48,067 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:01:48,116 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:01:48,118 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:01:48,118 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-19 08:01:48,119 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:01:48,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-19 08:01:48,128 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-19 08:01:48,129 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-19 08:01:48,131 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 4 states. [2018-09-19 08:01:48,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:01:48,252 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2018-09-19 08:01:48,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-19 08:01:48,254 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-09-19 08:01:48,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:01:48,262 INFO L225 Difference]: With dead ends: 44 [2018-09-19 08:01:48,263 INFO L226 Difference]: Without dead ends: 20 [2018-09-19 08:01:48,266 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 08:01:48,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-09-19 08:01:48,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 15. [2018-09-19 08:01:48,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-09-19 08:01:48,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-09-19 08:01:48,305 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 11 [2018-09-19 08:01:48,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:01:48,306 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2018-09-19 08:01:48,306 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-19 08:01:48,306 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2018-09-19 08:01:48,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-19 08:01:48,307 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:01:48,307 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:01:48,308 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:01:48,308 INFO L82 PathProgramCache]: Analyzing trace with hash 299545522, now seen corresponding path program 1 times [2018-09-19 08:01:48,308 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:01:48,309 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 13 with the following transitions: [2018-09-19 08:01:48,309 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [15], [31], [34], [36], [42], [43], [44], [46] [2018-09-19 08:01:48,311 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:01:48,311 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:01:48,328 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-19 08:01:48,328 INFO L272 AbstractInterpreter]: Visited 12 different actions 12 times. Never merged. Never widened. Never found a fixpoint. Largest state had 4 variables. [2018-09-19 08:01:48,344 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-19 08:01:48,360 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-19 08:01:48,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 08:01:48 BoogieIcfgContainer [2018-09-19 08:01:48,361 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 08:01:48,362 INFO L168 Benchmark]: Toolchain (without parser) took 1389.58 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 726.1 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -727.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 08:01:48,364 INFO L168 Benchmark]: CDTParser took 0.27 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 08:01:48,365 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.58 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 08:01:48,366 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.79 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 08:01:48,367 INFO L168 Benchmark]: Boogie Preprocessor took 23.55 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 08:01:48,368 INFO L168 Benchmark]: RCFGBuilder took 433.88 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 726.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -768.3 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2018-09-19 08:01:48,369 INFO L168 Benchmark]: TraceAbstraction took 621.12 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 30.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. [2018-09-19 08:01:48,374 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 278.58 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 23.79 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 23.55 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 433.88 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 726.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -768.3 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 621.12 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 30.4 MB). Peak memory consumption was 30.4 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 = 0; [L12] int n = 0; [L13] int k = __VERIFIER_nondet_int(); [L14] COND FALSE !(!(k <= 1000000 && k >= -1000000)) [L15] i = 0 [L15] COND FALSE !(i < 2*k) [L20] CALL __VERIFIER_assert(k < 0 || n == k) [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: 23 SDtfs, 16 SDslu, 20 SDs, 0 SdLazy, 10 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, 0.975 AbsIntWeakeningRatio, 0.6 AbsIntAvgWeakeningVarsNumRemoved, 2.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 5 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/half_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_08-01-48-387.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/half_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_08-01-48-387.csv Received shutdown request...