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 0.1.23-3142e50-m [2018-09-11 19:40:35,630 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-11 19:40:35,632 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-11 19:40:35,645 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-11 19:40:35,645 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-11 19:40:35,647 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-11 19:40:35,648 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-11 19:40:35,650 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-11 19:40:35,651 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-11 19:40:35,652 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-11 19:40:35,653 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-11 19:40:35,654 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-11 19:40:35,654 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-11 19:40:35,655 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-11 19:40:35,657 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-11 19:40:35,657 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-11 19:40:35,658 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-11 19:40:35,660 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-11 19:40:35,667 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-11 19:40:35,669 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-11 19:40:35,673 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-11 19:40:35,674 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-11 19:40:35,678 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-11 19:40:35,693 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 [2018-09-11 19:40:35,721 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-11 19:40:35,722 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-11 19:40:35,723 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-11 19:40:35,723 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-11 19:40:35,723 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-11 19:40:35,723 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-11 19:40:35,724 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-11 19:40:35,724 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-11 19:40:35,724 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-11 19:40:35,724 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-11 19:40:35,725 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-11 19:40:35,725 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-11 19:40:35,726 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-11 19:40:35,726 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-11 19:40:35,726 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-11 19:40:35,726 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-11 19:40:35,727 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-11 19:40:35,727 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-11 19:40:35,727 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-11 19:40:35,727 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-11 19:40:35,728 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-11 19:40:35,728 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-11 19:40:35,728 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-11 19:40:35,728 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-11 19:40:35,730 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-11 19:40:35,730 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-11 19:40:35,730 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-11 19:40:35,730 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-11 19:40:35,731 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-11 19:40:35,731 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-11 19:40:35,731 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-11 19:40:35,731 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-11 19:40:35,732 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-11 19:40:35,732 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-11 19:40:35,803 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-11 19:40:35,817 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-11 19:40:35,821 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-11 19:40:35,823 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-11 19:40:35,823 INFO L276 PluginConnector]: CDTParser initialized [2018-09-11 19:40:35,824 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/heapsort_true-unreach-call_true-termination.i [2018-09-11 19:40:36,187 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/633b5a591/598875fe5d544046ae2c6c613337ec50/FLAG1fa99215f [2018-09-11 19:40:36,367 INFO L276 CDTParser]: Found 1 translation units. [2018-09-11 19:40:36,368 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/heapsort_true-unreach-call_true-termination.i [2018-09-11 19:40:36,379 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/633b5a591/598875fe5d544046ae2c6c613337ec50/FLAG1fa99215f [2018-09-11 19:40:36,400 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/633b5a591/598875fe5d544046ae2c6c613337ec50 [2018-09-11 19:40:36,410 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-11 19:40:36,413 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-11 19:40:36,414 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-11 19:40:36,414 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-11 19:40:36,421 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-11 19:40:36,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 07:40:36" (1/1) ... [2018-09-11 19:40:36,425 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f7005b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:36, skipping insertion in model container [2018-09-11 19:40:36,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 07:40:36" (1/1) ... [2018-09-11 19:40:36,581 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-11 19:40:36,624 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 19:40:36,641 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-11 19:40:36,652 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 19:40:36,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:36 WrapperNode [2018-09-11 19:40:36,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-11 19:40:36,669 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-11 19:40:36,669 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-11 19:40:36,669 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-11 19:40:36,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:36" (1/1) ... [2018-09-11 19:40:36,688 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:36" (1/1) ... [2018-09-11 19:40:36,693 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-11 19:40:36,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-11 19:40:36,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-11 19:40:36,694 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-11 19:40:36,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:36" (1/1) ... [2018-09-11 19:40:36,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:36" (1/1) ... [2018-09-11 19:40:36,704 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:36" (1/1) ... [2018-09-11 19:40:36,704 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:36" (1/1) ... [2018-09-11 19:40:36,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:36" (1/1) ... [2018-09-11 19:40:36,715 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:36" (1/1) ... [2018-09-11 19:40:36,717 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:36" (1/1) ... [2018-09-11 19:40:36,719 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-11 19:40:36,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-11 19:40:36,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-11 19:40:36,720 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-11 19:40:36,721 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:36" (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 [2018-09-11 19:40:36,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-11 19:40:36,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-11 19:40:36,789 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_heapsort_true_unreach_call_true_termination_i____VERIFIER_assert [2018-09-11 19:40:36,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_heapsort_true_unreach_call_true_termination_i____VERIFIER_assert [2018-09-11 19:40:36,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-11 19:40:36,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-11 19:40:36,790 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-11 19:40:36,790 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-11 19:40:37,325 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-11 19:40:37,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 07:40:37 BoogieIcfgContainer [2018-09-11 19:40:37,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-11 19:40:37,328 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-11 19:40:37,328 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-11 19:40:37,331 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-11 19:40:37,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 07:40:36" (1/3) ... [2018-09-11 19:40:37,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@694cae32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 07:40:37, skipping insertion in model container [2018-09-11 19:40:37,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 07:40:36" (2/3) ... [2018-09-11 19:40:37,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@694cae32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 07:40:37, skipping insertion in model container [2018-09-11 19:40:37,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 07:40:37" (3/3) ... [2018-09-11 19:40:37,335 INFO L112 eAbstractionObserver]: Analyzing ICFG heapsort_true-unreach-call_true-termination.i [2018-09-11 19:40:37,345 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-11 19:40:37,354 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-11 19:40:37,405 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-11 19:40:37,405 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-11 19:40:37,406 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-11 19:40:37,406 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-11 19:40:37,406 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-11 19:40:37,406 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-11 19:40:37,406 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-11 19:40:37,406 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-11 19:40:37,406 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-11 19:40:37,425 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-09-11 19:40:37,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-11 19:40:37,432 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:40:37,433 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 19:40:37,434 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_heapsort_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:40:37,440 INFO L82 PathProgramCache]: Analyzing trace with hash 397302021, now seen corresponding path program 1 times [2018-09-11 19:40:37,443 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:40:37,444 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 16 with the following transitions: [2018-09-11 19:40:37,446 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [19], [22], [28], [34], [76], [80], [95], [96], [97], [119] [2018-09-11 19:40:37,513 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:40:37,514 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:40:37,595 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-11 19:40:37,610 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:40:37,611 INFO L272 AbstractInterpreter]: Visited 10 different actions 10 times. Never merged. Never widened. Never found a fixpoint. Largest state had 13 variables. [2018-09-11 19:40:37,636 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:40:37,720 INFO L232 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 81.99% of their original sizes. [2018-09-11 19:40:37,720 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:40:37,880 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:40:37,882 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:40:37,882 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-11 19:40:37,882 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:40:37,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-11 19:40:37,893 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-11 19:40:37,894 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-11 19:40:37,896 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 6 states. [2018-09-11 19:40:38,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:40:38,805 INFO L93 Difference]: Finished difference Result 143 states and 273 transitions. [2018-09-11 19:40:38,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-11 19:40:38,808 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-09-11 19:40:38,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:40:38,820 INFO L225 Difference]: With dead ends: 143 [2018-09-11 19:40:38,820 INFO L226 Difference]: Without dead ends: 94 [2018-09-11 19:40:38,826 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 [2018-09-11 19:40:38,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2018-09-11 19:40:38,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 40. [2018-09-11 19:40:38,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-09-11 19:40:38,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 59 transitions. [2018-09-11 19:40:38,892 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 59 transitions. Word has length 15 [2018-09-11 19:40:38,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:40:38,893 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 59 transitions. [2018-09-11 19:40:38,893 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-11 19:40:38,893 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 59 transitions. [2018-09-11 19:40:38,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-11 19:40:38,894 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:40:38,895 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 19:40:38,895 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_heapsort_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:40:38,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1054353405, now seen corresponding path program 1 times [2018-09-11 19:40:38,896 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:40:38,896 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-09-11 19:40:38,896 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [19], [22], [28], [34], [38], [42], [80], [95], [96], [97], [119] [2018-09-11 19:40:38,898 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:40:38,898 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:40:38,905 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-11 19:40:38,915 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:40:38,916 INFO L272 AbstractInterpreter]: Visited 15 different actions 15 times. Never merged. Never widened. Never found a fixpoint. Largest state had 13 variables. [2018-09-11 19:40:38,944 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:40:39,002 INFO L232 lantSequenceWeakener]: Weakened 9 states. On average, predicates are now at 77.37% of their original sizes. [2018-09-11 19:40:39,005 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:40:39,411 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:40:39,411 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:40:39,412 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-11 19:40:39,412 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:40:39,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-11 19:40:39,414 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-11 19:40:39,414 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-09-11 19:40:39,415 INFO L87 Difference]: Start difference. First operand 40 states and 59 transitions. Second operand 10 states. [2018-09-11 19:40:40,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:40:40,894 INFO L93 Difference]: Finished difference Result 100 states and 156 transitions. [2018-09-11 19:40:40,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-11 19:40:40,895 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2018-09-11 19:40:40,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:40:40,899 INFO L225 Difference]: With dead ends: 100 [2018-09-11 19:40:40,899 INFO L226 Difference]: Without dead ends: 98 [2018-09-11 19:40:40,902 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-09-11 19:40:40,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-09-11 19:40:40,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 89. [2018-09-11 19:40:40,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-09-11 19:40:40,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 141 transitions. [2018-09-11 19:40:40,960 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 141 transitions. Word has length 16 [2018-09-11 19:40:40,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:40:40,960 INFO L480 AbstractCegarLoop]: Abstraction has 89 states and 141 transitions. [2018-09-11 19:40:40,960 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-11 19:40:40,961 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 141 transitions. [2018-09-11 19:40:40,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-11 19:40:40,962 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:40:40,962 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 19:40:40,963 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_heapsort_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:40:40,963 INFO L82 PathProgramCache]: Analyzing trace with hash -1442643646, now seen corresponding path program 1 times [2018-09-11 19:40:40,963 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:40:40,964 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-09-11 19:40:40,964 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [19], [24], [28], [34], [38], [42], [85], [95], [96], [97], [123] [2018-09-11 19:40:40,966 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:40:40,967 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:40:40,971 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-11 19:40:40,974 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:40:40,974 INFO L272 AbstractInterpreter]: Visited 11 different actions 11 times. Never merged. Never widened. Never found a fixpoint. Largest state had 13 variables. [2018-09-11 19:40:40,990 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:40:41,021 INFO L232 lantSequenceWeakener]: Weakened 6 states. On average, predicates are now at 77.42% of their original sizes. [2018-09-11 19:40:41,022 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:40:41,064 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:40:41,065 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:40:41,065 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-11 19:40:41,065 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:40:41,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-11 19:40:41,066 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-11 19:40:41,066 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-11 19:40:41,066 INFO L87 Difference]: Start difference. First operand 89 states and 141 transitions. Second operand 6 states. [2018-09-11 19:40:42,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:40:42,438 INFO L93 Difference]: Finished difference Result 221 states and 359 transitions. [2018-09-11 19:40:42,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-11 19:40:42,441 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-09-11 19:40:42,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:40:42,447 INFO L225 Difference]: With dead ends: 221 [2018-09-11 19:40:42,447 INFO L226 Difference]: Without dead ends: 184 [2018-09-11 19:40:42,451 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2018-09-11 19:40:42,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2018-09-11 19:40:42,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 115. [2018-09-11 19:40:42,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-09-11 19:40:42,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 183 transitions. [2018-09-11 19:40:42,514 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 183 transitions. Word has length 16 [2018-09-11 19:40:42,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:40:42,515 INFO L480 AbstractCegarLoop]: Abstraction has 115 states and 183 transitions. [2018-09-11 19:40:42,515 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-11 19:40:42,515 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 183 transitions. [2018-09-11 19:40:42,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-11 19:40:42,516 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:40:42,516 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 19:40:42,517 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_heapsort_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:40:42,517 INFO L82 PathProgramCache]: Analyzing trace with hash -1408950025, now seen corresponding path program 1 times [2018-09-11 19:40:42,517 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:40:42,517 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-09-11 19:40:42,518 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [19], [24], [28], [34], [38], [44], [60], [95], [96], [97], [107] [2018-09-11 19:40:42,520 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:40:42,520 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:40:42,524 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-11 19:40:42,529 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 19:40:42,529 INFO L272 AbstractInterpreter]: Visited 15 different actions 15 times. Never merged. Never widened. Never found a fixpoint. Largest state had 13 variables. [2018-09-11 19:40:42,559 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 19:40:42,584 INFO L232 lantSequenceWeakener]: Weakened 9 states. On average, predicates are now at 78.38% of their original sizes. [2018-09-11 19:40:42,584 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 19:40:42,779 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 19:40:42,779 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 19:40:42,780 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-11 19:40:42,780 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 19:40:42,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-11 19:40:42,781 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-11 19:40:42,781 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-09-11 19:40:42,782 INFO L87 Difference]: Start difference. First operand 115 states and 183 transitions. Second operand 9 states. [2018-09-11 19:40:43,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 19:40:43,839 INFO L93 Difference]: Finished difference Result 194 states and 310 transitions. [2018-09-11 19:40:43,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-11 19:40:43,839 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2018-09-11 19:40:43,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 19:40:43,842 INFO L225 Difference]: With dead ends: 194 [2018-09-11 19:40:43,843 INFO L226 Difference]: Without dead ends: 192 [2018-09-11 19:40:43,843 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2018-09-11 19:40:43,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2018-09-11 19:40:43,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 178. [2018-09-11 19:40:43,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-09-11 19:40:43,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 288 transitions. [2018-09-11 19:40:43,903 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 288 transitions. Word has length 16 [2018-09-11 19:40:43,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 19:40:43,904 INFO L480 AbstractCegarLoop]: Abstraction has 178 states and 288 transitions. [2018-09-11 19:40:43,904 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-11 19:40:43,904 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 288 transitions. [2018-09-11 19:40:43,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-11 19:40:43,907 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 19:40:43,907 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] [2018-09-11 19:40:43,907 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_heapsort_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 19:40:43,908 INFO L82 PathProgramCache]: Analyzing trace with hash -1829298465, now seen corresponding path program 1 times [2018-09-11 19:40:43,908 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 19:40:43,908 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 22 with the following transitions: [2018-09-11 19:40:43,909 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [9], [11], [15], [19], [22], [28], [34], [38], [42], [80], [95], [96], [97], [119], [120], [121] [2018-09-11 19:40:43,911 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 19:40:43,912 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 19:40:43,920 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-11 19:40:43,929 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-11 19:40:43,929 INFO L272 AbstractInterpreter]: Visited 20 different actions 24 times. Never merged. Never widened. Never found a fixpoint. Largest state had 13 variables. [2018-09-11 19:40:43,969 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-11 19:40:43,991 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-11 19:40:43,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 07:40:43 BoogieIcfgContainer [2018-09-11 19:40:43,992 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-11 19:40:43,993 INFO L168 Benchmark]: Toolchain (without parser) took 7581.93 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 716.7 MB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -397.1 MB). Peak memory consumption was 319.6 MB. Max. memory is 7.1 GB. [2018-09-11 19:40:43,995 INFO L168 Benchmark]: CDTParser took 0.24 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. [2018-09-11 19:40:43,996 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.45 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. [2018-09-11 19:40:43,997 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.34 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. [2018-09-11 19:40:43,999 INFO L168 Benchmark]: Boogie Preprocessor took 25.12 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. [2018-09-11 19:40:43,999 INFO L168 Benchmark]: RCFGBuilder took 607.44 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 716.7 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -753.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-09-11 19:40:44,000 INFO L168 Benchmark]: TraceAbstraction took 6664.19 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 345.6 MB). Peak memory consumption was 345.6 MB. Max. memory is 7.1 GB. [2018-09-11 19:40:44,008 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 254.45 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 24.34 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 25.12 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 607.44 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 716.7 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -753.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6664.19 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 345.6 MB). Peak memory consumption was 345.6 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, 6.5s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 4.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 342 SDtfs, 423 SDslu, 953 SDs, 0 SdLazy, 578 SolverSat, 495 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.8s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 80 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=178occurred 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, 0.8448500651890481 AbsIntWeakeningRatio, 1.2203389830508475 AbsIntAvgWeakeningVarsNumRemoved, 12.542372881355933 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 146 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-0-2018-09-11_19-40-44-033.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-0-2018-09-11_19-40-44-033.csv Received shutdown request...