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-invgen/heapsort_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 17:20:13,018 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 17:20:13,021 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 17:20:13,043 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 17:20:13,043 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 17:20:13,045 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 17:20:13,046 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 17:20:13,049 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 17:20:13,052 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 17:20:13,060 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 17:20:13,063 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 17:20:13,063 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 17:20:13,064 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 17:20:13,067 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 17:20:13,069 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 17:20:13,071 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 17:20:13,073 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 17:20:13,076 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 17:20:13,079 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 17:20:13,081 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 17:20:13,085 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 17:20:13,088 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 17:20:13,093 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 17:20:13,094 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 17:20:13,094 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 17:20:13,097 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 17:20:13,098 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 17:20:13,099 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 17:20:13,100 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 17:20:13,103 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 17:20:13,104 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 17:20:13,104 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-15 17:20:13,110 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-09-15 17:20:13,137 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 17:20:13,138 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 17:20:13,138 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 17:20:13,139 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 17:20:13,139 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 17:20:13,139 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 17:20:13,139 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-15 17:20:13,140 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 17:20:13,140 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-15 17:20:13,140 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 17:20:13,140 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 17:20:13,140 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 17:20:13,141 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 17:20:13,141 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 17:20:13,142 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 17:20:13,142 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 17:20:13,142 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 17:20:13,142 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 17:20:13,142 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 17:20:13,143 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 17:20:13,143 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 17:20:13,143 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 17:20:13,143 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 17:20:13,143 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 17:20:13,144 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 17:20:13,144 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 17:20:13,144 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 17:20:13,144 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 17:20:13,145 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 17:20:13,145 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 17:20:13,145 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 17:20:13,145 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 17:20:13,145 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 17:20:13,146 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 17:20:13,211 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 17:20:13,225 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 17:20:13,229 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 17:20:13,231 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 17:20:13,231 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 17:20:13,232 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/heapsort_true-unreach-call_true-termination.i [2018-09-15 17:20:13,586 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/313101ba8/7af01c0c40554fad8a55508cc158936c/FLAG91134e0e4 [2018-09-15 17:20:13,747 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 17:20:13,748 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/heapsort_true-unreach-call_true-termination.i [2018-09-15 17:20:13,756 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/313101ba8/7af01c0c40554fad8a55508cc158936c/FLAG91134e0e4 [2018-09-15 17:20:13,772 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/313101ba8/7af01c0c40554fad8a55508cc158936c [2018-09-15 17:20:13,782 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 17:20:13,785 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 17:20:13,787 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 17:20:13,787 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 17:20:13,794 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 17:20:13,795 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 05:20:13" (1/1) ... [2018-09-15 17:20:13,798 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69ed6b6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:13, skipping insertion in model container [2018-09-15 17:20:13,798 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 05:20:13" (1/1) ... [2018-09-15 17:20:13,810 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 17:20:14,047 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 17:20:14,065 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 17:20:14,079 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 17:20:14,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:14 WrapperNode [2018-09-15 17:20:14,092 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 17:20:14,093 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 17:20:14,093 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 17:20:14,093 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 17:20:14,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:14" (1/1) ... [2018-09-15 17:20:14,107 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:14" (1/1) ... [2018-09-15 17:20:14,112 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 17:20:14,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 17:20:14,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 17:20:14,113 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 17:20:14,122 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:14" (1/1) ... [2018-09-15 17:20:14,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:14" (1/1) ... [2018-09-15 17:20:14,124 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:14" (1/1) ... [2018-09-15 17:20:14,124 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:14" (1/1) ... [2018-09-15 17:20:14,127 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:14" (1/1) ... [2018-09-15 17:20:14,134 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:14" (1/1) ... [2018-09-15 17:20:14,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:14" (1/1) ... [2018-09-15 17:20:14,137 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 17:20:14,140 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 17:20:14,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 17:20:14,141 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 17:20:14,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 17:20:14,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 17:20:14,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 17:20:14,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 17:20:14,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 17:20:14,212 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 17:20:14,212 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 17:20:14,212 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-15 17:20:14,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-15 17:20:14,756 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 17:20:14,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 05:20:14 BoogieIcfgContainer [2018-09-15 17:20:14,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 17:20:14,758 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 17:20:14,758 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 17:20:14,762 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 17:20:14,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 05:20:13" (1/3) ... [2018-09-15 17:20:14,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a3bfa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 05:20:14, skipping insertion in model container [2018-09-15 17:20:14,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:14" (2/3) ... [2018-09-15 17:20:14,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a3bfa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 05:20:14, skipping insertion in model container [2018-09-15 17:20:14,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 05:20:14" (3/3) ... [2018-09-15 17:20:14,766 INFO L112 eAbstractionObserver]: Analyzing ICFG heapsort_true-unreach-call_true-termination.i [2018-09-15 17:20:14,777 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 17:20:14,785 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 17:20:14,830 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 17:20:14,831 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 17:20:14,831 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 17:20:14,831 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 17:20:14,831 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 17:20:14,831 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 17:20:14,831 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 17:20:14,832 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 17:20:14,832 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 17:20:14,850 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-09-15 17:20:14,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-15 17:20:14,857 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 17:20:14,858 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 17:20:14,859 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 17:20:14,863 INFO L82 PathProgramCache]: Analyzing trace with hash 64061581, now seen corresponding path program 1 times [2018-09-15 17:20:14,865 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 17:20:14,866 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 16 with the following transitions: [2018-09-15 17:20:14,868 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [17], [23], [65], [69], [84], [87], [89], [95], [96], [97], [119] [2018-09-15 17:20:14,918 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 17:20:14,918 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 17:20:14,991 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 17:20:15,005 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 17:20:15,006 INFO L272 AbstractInterpreter]: Visited 10 different actions 10 times. Never merged. Never widened. Never found a fixpoint. Largest state had 13 variables. [2018-09-15 17:20:15,029 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 17:20:15,127 INFO L232 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 81.99% of their original sizes. [2018-09-15 17:20:15,128 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 17:20:15,263 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 17:20:15,264 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 17:20:15,264 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 17:20:15,265 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 17:20:15,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 17:20:15,275 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 17:20:15,276 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-15 17:20:15,278 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 6 states. [2018-09-15 17:20:16,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 17:20:16,245 INFO L93 Difference]: Finished difference Result 143 states and 273 transitions. [2018-09-15 17:20:16,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 17:20:16,247 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-09-15 17:20:16,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 17:20:16,258 INFO L225 Difference]: With dead ends: 143 [2018-09-15 17:20:16,259 INFO L226 Difference]: Without dead ends: 94 [2018-09-15 17:20:16,265 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-15 17:20:16,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2018-09-15 17:20:16,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 40. [2018-09-15 17:20:16,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-09-15 17:20:16,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 59 transitions. [2018-09-15 17:20:16,332 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 59 transitions. Word has length 15 [2018-09-15 17:20:16,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 17:20:16,332 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 59 transitions. [2018-09-15 17:20:16,333 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 17:20:16,333 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 59 transitions. [2018-09-15 17:20:16,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-15 17:20:16,334 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 17:20:16,334 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 17:20:16,335 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 17:20:16,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1525893932, now seen corresponding path program 1 times [2018-09-15 17:20:16,335 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 17:20:16,336 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-09-15 17:20:16,336 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [17], [23], [27], [33], [49], [84], [87], [89], [95], [96], [97], [107] [2018-09-15 17:20:16,338 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 17:20:16,338 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 17:20:16,344 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 17:20:16,354 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 17:20:16,354 INFO L272 AbstractInterpreter]: Visited 15 different actions 15 times. Never merged. Never widened. Never found a fixpoint. Largest state had 13 variables. [2018-09-15 17:20:16,380 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 17:20:16,442 INFO L232 lantSequenceWeakener]: Weakened 9 states. On average, predicates are now at 78.38% of their original sizes. [2018-09-15 17:20:16,442 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 17:20:16,708 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 17:20:16,709 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 17:20:16,709 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-15 17:20:16,709 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 17:20:16,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-15 17:20:16,711 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-15 17:20:16,711 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-09-15 17:20:16,712 INFO L87 Difference]: Start difference. First operand 40 states and 59 transitions. Second operand 10 states. [2018-09-15 17:20:18,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 17:20:18,203 INFO L93 Difference]: Finished difference Result 111 states and 172 transitions. [2018-09-15 17:20:18,205 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-15 17:20:18,205 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2018-09-15 17:20:18,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 17:20:18,209 INFO L225 Difference]: With dead ends: 111 [2018-09-15 17:20:18,210 INFO L226 Difference]: Without dead ends: 109 [2018-09-15 17:20:18,211 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2018-09-15 17:20:18,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-09-15 17:20:18,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 87. [2018-09-15 17:20:18,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-09-15 17:20:18,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 138 transitions. [2018-09-15 17:20:18,248 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 138 transitions. Word has length 16 [2018-09-15 17:20:18,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 17:20:18,248 INFO L480 AbstractCegarLoop]: Abstraction has 87 states and 138 transitions. [2018-09-15 17:20:18,249 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-15 17:20:18,249 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 138 transitions. [2018-09-15 17:20:18,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-15 17:20:18,250 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 17:20:18,250 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 17:20:18,251 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 17:20:18,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1132866922, now seen corresponding path program 1 times [2018-09-15 17:20:18,251 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 17:20:18,251 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-09-15 17:20:18,252 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [13], [17], [23], [27], [33], [49], [84], [87], [89], [95], [96], [97], [107] [2018-09-15 17:20:18,253 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 17:20:18,254 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 17:20:18,257 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 17:20:18,262 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 17:20:18,262 INFO L272 AbstractInterpreter]: Visited 15 different actions 15 times. Never merged. Never widened. Never found a fixpoint. Largest state had 13 variables. [2018-09-15 17:20:18,295 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 17:20:18,324 INFO L232 lantSequenceWeakener]: Weakened 9 states. On average, predicates are now at 78.38% of their original sizes. [2018-09-15 17:20:18,324 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 17:20:18,750 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 17:20:18,750 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 17:20:18,750 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-15 17:20:18,751 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 17:20:18,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-15 17:20:18,751 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-15 17:20:18,752 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-09-15 17:20:18,752 INFO L87 Difference]: Start difference. First operand 87 states and 138 transitions. Second operand 9 states. [2018-09-15 17:20:20,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 17:20:20,182 INFO L93 Difference]: Finished difference Result 223 states and 360 transitions. [2018-09-15 17:20:20,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-15 17:20:20,185 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2018-09-15 17:20:20,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 17:20:20,193 INFO L225 Difference]: With dead ends: 223 [2018-09-15 17:20:20,193 INFO L226 Difference]: Without dead ends: 190 [2018-09-15 17:20:20,195 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2018-09-15 17:20:20,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2018-09-15 17:20:20,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 176. [2018-09-15 17:20:20,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-09-15 17:20:20,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 285 transitions. [2018-09-15 17:20:20,291 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 285 transitions. Word has length 16 [2018-09-15 17:20:20,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 17:20:20,294 INFO L480 AbstractCegarLoop]: Abstraction has 176 states and 285 transitions. [2018-09-15 17:20:20,294 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-15 17:20:20,294 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 285 transitions. [2018-09-15 17:20:20,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-15 17:20:20,295 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 17:20:20,296 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 17:20:20,296 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 17:20:20,296 INFO L82 PathProgramCache]: Analyzing trace with hash -492506935, now seen corresponding path program 1 times [2018-09-15 17:20:20,298 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 17:20:20,298 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 22 with the following transitions: [2018-09-15 17:20:20,298 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [17], [23], [27], [33], [49], [84], [87], [89], [92], [94], [95], [96], [97], [107], [108], [109] [2018-09-15 17:20:20,300 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 17:20:20,301 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 17:20:20,307 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 17:20:20,317 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 17:20:20,317 INFO L272 AbstractInterpreter]: Visited 19 different actions 23 times. Never merged. Never widened. Never found a fixpoint. Largest state had 13 variables. [2018-09-15 17:20:20,327 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 17:20:20,356 INFO L232 lantSequenceWeakener]: Weakened 13 states. On average, predicates are now at 74.43% of their original sizes. [2018-09-15 17:20:20,357 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 17:20:20,789 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 17:20:20,790 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 17:20:20,790 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-15 17:20:20,790 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 17:20:20,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-15 17:20:20,791 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-15 17:20:20,791 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-09-15 17:20:20,792 INFO L87 Difference]: Start difference. First operand 176 states and 285 transitions. Second operand 10 states. [2018-09-15 17:20:21,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 17:20:21,964 INFO L93 Difference]: Finished difference Result 228 states and 358 transitions. [2018-09-15 17:20:21,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 17:20:21,966 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2018-09-15 17:20:21,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 17:20:21,970 INFO L225 Difference]: With dead ends: 228 [2018-09-15 17:20:21,971 INFO L226 Difference]: Without dead ends: 226 [2018-09-15 17:20:21,972 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2018-09-15 17:20:21,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2018-09-15 17:20:22,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 187. [2018-09-15 17:20:22,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2018-09-15 17:20:22,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 297 transitions. [2018-09-15 17:20:22,033 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 297 transitions. Word has length 21 [2018-09-15 17:20:22,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 17:20:22,033 INFO L480 AbstractCegarLoop]: Abstraction has 187 states and 297 transitions. [2018-09-15 17:20:22,033 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-15 17:20:22,034 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 297 transitions. [2018-09-15 17:20:22,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-15 17:20:22,035 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 17:20:22,035 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 17:20:22,035 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 17:20:22,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1032051649, now seen corresponding path program 1 times [2018-09-15 17:20:22,036 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 17:20:22,036 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 22 with the following transitions: [2018-09-15 17:20:22,036 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [17], [23], [27], [31], [69], [84], [87], [89], [92], [94], [95], [96], [97], [119], [120], [121] [2018-09-15 17:20:22,039 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 17:20:22,039 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 17:20:22,046 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 17:20:22,056 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-15 17:20:22,056 INFO L272 AbstractInterpreter]: Visited 20 different actions 24 times. Never merged. Never widened. Never found a fixpoint. Largest state had 13 variables. [2018-09-15 17:20:22,094 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-15 17:20:22,115 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-15 17:20:22,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 05:20:22 BoogieIcfgContainer [2018-09-15 17:20:22,116 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 17:20:22,117 INFO L168 Benchmark]: Toolchain (without parser) took 8333.97 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.3 MB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -384.6 MB). Peak memory consumption was 355.7 MB. Max. memory is 7.1 GB. [2018-09-15 17:20:22,119 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 17:20:22,120 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.84 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-15 17:20:22,121 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.64 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 17:20:22,121 INFO L168 Benchmark]: Boogie Preprocessor took 24.39 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 17:20:22,122 INFO L168 Benchmark]: RCFGBuilder took 616.59 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -786.1 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-09-15 17:20:22,123 INFO L168 Benchmark]: TraceAbstraction took 7357.76 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 390.8 MB). Peak memory consumption was 390.8 MB. Max. memory is 7.1 GB. [2018-09-15 17:20:22,130 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 305.84 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 19.64 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 24.39 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 616.59 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -786.1 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7357.76 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 390.8 MB). Peak memory consumption was 390.8 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 n,l,r,i,j; [L12] n = __VERIFIER_nondet_int() [L13] COND FALSE !(!(1 <= n && n <= 1000000)) [L14] l = n/2 + 1 [L15] r = n [L16] COND TRUE l>1 [L17] l-- [L17] l-- [L21] COND TRUE r > 1 [L22] i = l [L23] j = 2*l [L24] COND FALSE !(j <= r) [L45] COND TRUE l > 1 [L46] CALL __VERIFIER_assert(1 <= l) [L4] COND FALSE, RET !(!(cond)) [L46] __VERIFIER_assert(1 <= l) [L47] CALL __VERIFIER_assert(l <= n) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 45 locations, 1 error locations. UNKNOWN Result, 7.2s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 5.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 323 SDtfs, 468 SDslu, 1126 SDs, 0 SdLazy, 823 SolverSat, 568 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.9s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 87 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=187occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.3s AbstIntTime, 5 AbstIntIterations, 4 AbstIntStrong, 0.8389423076923076 AbsIntWeakeningRatio, 1.15625 AbsIntAvgWeakeningVarsNumRemoved, 13.8125 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 129 StatesRemovedByMinimization, 4 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/heapsort_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_17-20-22-148.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/heapsort_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_17-20-22-148.csv Received shutdown request...