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/AbstractInterpretationCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-invgen/heapsort_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-14 18:31:33,544 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-14 18:31:33,546 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-14 18:31:33,560 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-14 18:31:33,561 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-14 18:31:33,562 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-14 18:31:33,564 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-14 18:31:33,566 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-14 18:31:33,568 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-14 18:31:33,569 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-14 18:31:33,570 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-14 18:31:33,571 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-14 18:31:33,572 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-14 18:31:33,573 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-14 18:31:33,574 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-14 18:31:33,575 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-14 18:31:33,576 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-14 18:31:33,578 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-14 18:31:33,580 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-14 18:31:33,582 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-14 18:31:33,583 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-14 18:31:33,584 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-14 18:31:33,587 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-14 18:31:33,587 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-14 18:31:33,588 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-14 18:31:33,589 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-14 18:31:33,590 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-14 18:31:33,591 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-14 18:31:33,592 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-14 18:31:33,593 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-14 18:31:33,593 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-14 18:31:33,594 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-14 18:31:33,594 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-14 18:31:33,595 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-14 18:31:33,596 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-14 18:31:33,597 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-14 18:31:33,597 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-09-14 18:31:33,616 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-14 18:31:33,616 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-14 18:31:33,617 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-14 18:31:33,617 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-14 18:31:33,617 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-14 18:31:33,618 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-14 18:31:33,618 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-14 18:31:33,618 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-14 18:31:33,618 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-14 18:31:33,618 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-14 18:31:33,619 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-14 18:31:33,619 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-14 18:31:33,620 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-14 18:31:33,620 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-14 18:31:33,620 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-14 18:31:33,620 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-14 18:31:33,620 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-14 18:31:33,621 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-14 18:31:33,621 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-14 18:31:33,621 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-14 18:31:33,621 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-14 18:31:33,622 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-14 18:31:33,622 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-14 18:31:33,622 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 18:31:33,622 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-14 18:31:33,622 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-14 18:31:33,623 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-14 18:31:33,623 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-14 18:31:33,623 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-14 18:31:33,623 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-14 18:31:33,623 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-14 18:31:33,624 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-14 18:31:33,624 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-14 18:31:33,688 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-14 18:31:33,706 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-14 18:31:33,714 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-14 18:31:33,716 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-14 18:31:33,717 INFO L276 PluginConnector]: CDTParser initialized [2018-09-14 18:31:33,718 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/heapsort_true-unreach-call_true-termination.i [2018-09-14 18:31:34,124 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a108ea898/c06bd0b7c62b42b3ba6d7f828818c852/FLAG00407f294 [2018-09-14 18:31:34,351 INFO L277 CDTParser]: Found 1 translation units. [2018-09-14 18:31:34,352 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/heapsort_true-unreach-call_true-termination.i [2018-09-14 18:31:34,359 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a108ea898/c06bd0b7c62b42b3ba6d7f828818c852/FLAG00407f294 [2018-09-14 18:31:34,375 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a108ea898/c06bd0b7c62b42b3ba6d7f828818c852 [2018-09-14 18:31:34,385 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-14 18:31:34,388 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-14 18:31:34,390 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-14 18:31:34,390 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-14 18:31:34,403 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-14 18:31:34,404 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 06:31:34" (1/1) ... [2018-09-14 18:31:34,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@762cd7b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:31:34, skipping insertion in model container [2018-09-14 18:31:34,409 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 06:31:34" (1/1) ... [2018-09-14 18:31:34,422 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-14 18:31:34,629 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 18:31:34,647 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-14 18:31:34,666 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 18:31:34,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:31:34 WrapperNode [2018-09-14 18:31:34,692 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-14 18:31:34,693 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-14 18:31:34,693 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-14 18:31:34,693 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-14 18:31:34,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:31:34" (1/1) ... [2018-09-14 18:31:34,712 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:31:34" (1/1) ... [2018-09-14 18:31:34,719 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-14 18:31:34,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-14 18:31:34,720 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-14 18:31:34,720 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-14 18:31:34,731 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:31:34" (1/1) ... [2018-09-14 18:31:34,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:31:34" (1/1) ... [2018-09-14 18:31:34,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:31:34" (1/1) ... [2018-09-14 18:31:34,733 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:31:34" (1/1) ... [2018-09-14 18:31:34,736 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:31:34" (1/1) ... [2018-09-14 18:31:34,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:31:34" (1/1) ... [2018-09-14 18:31:34,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:31:34" (1/1) ... [2018-09-14 18:31:34,745 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-14 18:31:34,746 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-14 18:31:34,746 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-14 18:31:34,746 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-14 18:31:34,747 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:31:34" (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 [2018-09-14 18:31:34,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-14 18:31:34,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-14 18:31:34,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-14 18:31:34,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-14 18:31:34,826 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-14 18:31:34,826 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-14 18:31:34,826 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-14 18:31:34,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-14 18:31:35,514 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-14 18:31:35,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 06:31:35 BoogieIcfgContainer [2018-09-14 18:31:35,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-14 18:31:35,515 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-09-14 18:31:35,516 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-09-14 18:31:35,516 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-09-14 18:31:35,517 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 06:31:35" (1/1) ... [2018-09-14 18:31:35,573 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-14 18:31:35,717 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-14 18:31:36,939 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-14 18:31:36,961 INFO L272 AbstractInterpreter]: Visited 68 different actions 1379 times. Merged at 33 different actions 303 times. Widened at 2 different actions 5 times. Found 63 fixpoints after 10 different actions. Largest state had 19 variables. [2018-09-14 18:31:36,964 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-09-14 18:31:36,965 INFO L168 Benchmark]: Toolchain (without parser) took 2579.30 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 773.8 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -605.4 MB). Peak memory consumption was 168.4 MB. Max. memory is 7.1 GB. [2018-09-14 18:31:36,967 INFO L168 Benchmark]: CDTParser took 0.25 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. [2018-09-14 18:31:36,968 INFO L168 Benchmark]: CACSL2BoogieTranslator took 302.38 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. [2018-09-14 18:31:36,969 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.79 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. [2018-09-14 18:31:36,970 INFO L168 Benchmark]: Boogie Preprocessor took 25.91 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. [2018-09-14 18:31:36,971 INFO L168 Benchmark]: RCFGBuilder took 768.91 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 773.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -822.3 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2018-09-14 18:31:36,972 INFO L168 Benchmark]: Abstract Interpretation took 1448.48 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 206.3 MB). Peak memory consumption was 206.3 MB. Max. memory is 7.1 GB. [2018-09-14 18:31:36,978 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 302.38 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 26.79 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 25.91 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 768.91 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 773.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -822.3 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 1448.48 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 206.3 MB). Peak memory consumption was 206.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 5]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: abstract domain could reach this error location. 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() 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_Default-OldIcfg.epf_AbstractInterpretationCInline.xml/Csv-Benchmark-0-2018-09-14_18-31-36-993.csv Received shutdown request...