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_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-invgen/down_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-11 09:05:06,509 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-11 09:05:06,511 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-11 09:05:06,523 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-11 09:05:06,523 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-11 09:05:06,524 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-11 09:05:06,526 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-11 09:05:06,527 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-11 09:05:06,529 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-11 09:05:06,530 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-11 09:05:06,531 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-11 09:05:06,531 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-11 09:05:06,532 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-11 09:05:06,533 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-11 09:05:06,534 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-11 09:05:06,535 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-11 09:05:06,535 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-11 09:05:06,537 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-11 09:05:06,539 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-11 09:05:06,541 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-11 09:05:06,542 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-11 09:05:06,543 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-11 09:05:06,546 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-11 09:05:06,546 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-11 09:05:06,549 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-11 09:05:06,551 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-11 09:05:06,552 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-11 09:05:06,552 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-11 09:05:06,553 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-11 09:05:06,554 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-11 09:05:06,558 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-11 09:05:06,558 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-11 09:05:06,561 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 [2018-09-11 09:05:06,592 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-11 09:05:06,593 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-11 09:05:06,595 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-11 09:05:06,596 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-11 09:05:06,596 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-11 09:05:06,596 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-11 09:05:06,596 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-11 09:05:06,597 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-11 09:05:06,597 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-11 09:05:06,597 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-11 09:05:06,597 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-11 09:05:06,598 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-11 09:05:06,598 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-11 09:05:06,598 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-11 09:05:06,598 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-11 09:05:06,599 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-11 09:05:06,599 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-11 09:05:06,599 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-11 09:05:06,599 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-11 09:05:06,600 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-11 09:05:06,601 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-11 09:05:06,601 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-11 09:05:06,601 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-11 09:05:06,601 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-11 09:05:06,601 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-11 09:05:06,601 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-11 09:05:06,602 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-11 09:05:06,602 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-11 09:05:06,602 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-11 09:05:06,602 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-11 09:05:06,603 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-11 09:05:06,604 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-11 09:05:06,604 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-11 09:05:06,654 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-11 09:05:06,670 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-11 09:05:06,677 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-11 09:05:06,678 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-11 09:05:06,679 INFO L276 PluginConnector]: CDTParser initialized [2018-09-11 09:05:06,680 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/down_true-unreach-call_true-termination.i [2018-09-11 09:05:07,034 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d4ee8f7c/edef5d6c55114601a5752c3087b77b42/FLAGb6d602607 [2018-09-11 09:05:07,163 INFO L276 CDTParser]: Found 1 translation units. [2018-09-11 09:05:07,164 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/down_true-unreach-call_true-termination.i [2018-09-11 09:05:07,170 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d4ee8f7c/edef5d6c55114601a5752c3087b77b42/FLAGb6d602607 [2018-09-11 09:05:07,186 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d4ee8f7c/edef5d6c55114601a5752c3087b77b42 [2018-09-11 09:05:07,200 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-11 09:05:07,204 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-11 09:05:07,205 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-11 09:05:07,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-11 09:05:07,213 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-11 09:05:07,214 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 09:05:07" (1/1) ... [2018-09-11 09:05:07,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@788df0f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:07, skipping insertion in model container [2018-09-11 09:05:07,218 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 09:05:07" (1/1) ... [2018-09-11 09:05:07,415 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-11 09:05:07,457 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 09:05:07,477 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-11 09:05:07,484 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 09:05:07,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:07 WrapperNode [2018-09-11 09:05:07,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-11 09:05:07,501 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-11 09:05:07,502 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-11 09:05:07,502 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-11 09:05:07,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:07" (1/1) ... [2018-09-11 09:05:07,518 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:07" (1/1) ... [2018-09-11 09:05:07,524 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-11 09:05:07,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-11 09:05:07,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-11 09:05:07,526 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-11 09:05:07,536 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:07" (1/1) ... [2018-09-11 09:05:07,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:07" (1/1) ... [2018-09-11 09:05:07,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:07" (1/1) ... [2018-09-11 09:05:07,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:07" (1/1) ... [2018-09-11 09:05:07,539 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:07" (1/1) ... [2018-09-11 09:05:07,545 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:07" (1/1) ... [2018-09-11 09:05:07,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:07" (1/1) ... [2018-09-11 09:05:07,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-11 09:05:07,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-11 09:05:07,548 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-11 09:05:07,548 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-11 09:05:07,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:07" (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 09:05:07,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-11 09:05:07,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-11 09:05:07,622 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_down_true_unreach_call_true_termination_i____VERIFIER_assert [2018-09-11 09:05:07,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_down_true_unreach_call_true_termination_i____VERIFIER_assert [2018-09-11 09:05:07,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-11 09:05:07,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-11 09:05:07,624 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-11 09:05:07,624 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-11 09:05:07,893 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-11 09:05:07,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 09:05:07 BoogieIcfgContainer [2018-09-11 09:05:07,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-11 09:05:07,895 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-11 09:05:07,895 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-11 09:05:07,898 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-11 09:05:07,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 09:05:07" (1/3) ... [2018-09-11 09:05:07,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67a87ff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 09:05:07, skipping insertion in model container [2018-09-11 09:05:07,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:07" (2/3) ... [2018-09-11 09:05:07,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67a87ff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 09:05:07, skipping insertion in model container [2018-09-11 09:05:07,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 09:05:07" (3/3) ... [2018-09-11 09:05:07,902 INFO L112 eAbstractionObserver]: Analyzing ICFG down_true-unreach-call_true-termination.i [2018-09-11 09:05:07,912 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-11 09:05:07,920 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-11 09:05:07,965 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-11 09:05:07,966 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-11 09:05:07,966 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-11 09:05:07,966 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-11 09:05:07,967 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-11 09:05:07,967 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-11 09:05:07,967 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-11 09:05:07,967 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-11 09:05:07,967 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-11 09:05:07,985 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-09-11 09:05:07,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-11 09:05:07,992 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 09:05:07,993 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 09:05:07,994 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_down_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 09:05:07,999 INFO L82 PathProgramCache]: Analyzing trace with hash 910151092, now seen corresponding path program 1 times [2018-09-11 09:05:08,002 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 09:05:08,003 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 14 with the following transitions: [2018-09-11 09:05:08,005 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [27], [29], [33], [39], [47], [48], [49], [51] [2018-09-11 09:05:08,063 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-11 09:05:08,063 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 09:05:08,137 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 09:05:08,138 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Never found a fixpoint. Largest state had 5 variables. [2018-09-11 09:05:08,164 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 09:05:08,217 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 33.33% of their original sizes. [2018-09-11 09:05:08,218 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 09:05:08,238 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 09:05:08,240 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 09:05:08,240 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-11 09:05:08,241 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 09:05:08,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-11 09:05:08,251 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-11 09:05:08,251 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-11 09:05:08,254 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 3 states. [2018-09-11 09:05:08,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 09:05:08,442 INFO L93 Difference]: Finished difference Result 49 states and 62 transitions. [2018-09-11 09:05:08,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-11 09:05:08,448 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-09-11 09:05:08,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 09:05:08,458 INFO L225 Difference]: With dead ends: 49 [2018-09-11 09:05:08,459 INFO L226 Difference]: Without dead ends: 25 [2018-09-11 09:05:08,462 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-11 09:05:08,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-09-11 09:05:08,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 18. [2018-09-11 09:05:08,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-09-11 09:05:08,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2018-09-11 09:05:08,505 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2018-09-11 09:05:08,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 09:05:08,506 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2018-09-11 09:05:08,506 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-11 09:05:08,506 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2018-09-11 09:05:08,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-11 09:05:08,507 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 09:05:08,508 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 09:05:08,509 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_down_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 09:05:08,509 INFO L82 PathProgramCache]: Analyzing trace with hash -1578698797, now seen corresponding path program 1 times [2018-09-11 09:05:08,511 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 09:05:08,511 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2018-09-11 09:05:08,512 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [19], [23], [29], [33], [39], [47], [48], [49], [51] [2018-09-11 09:05:08,514 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-11 09:05:08,514 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 09:05:08,530 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 09:05:08,530 INFO L272 AbstractInterpreter]: Visited 10 different actions 10 times. Never merged. Never widened. Never found a fixpoint. Largest state had 5 variables. [2018-09-11 09:05:08,545 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 09:05:08,605 INFO L232 lantSequenceWeakener]: Weakened 3 states. On average, predicates are now at 44.44% of their original sizes. [2018-09-11 09:05:08,605 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 09:05:08,737 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 09:05:08,738 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 09:05:08,738 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-11 09:05:08,738 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 09:05:08,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-11 09:05:08,740 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-11 09:05:08,740 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-11 09:05:08,740 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 5 states. [2018-09-11 09:05:08,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 09:05:08,967 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2018-09-11 09:05:08,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-11 09:05:08,968 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-09-11 09:05:08,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 09:05:08,969 INFO L225 Difference]: With dead ends: 33 [2018-09-11 09:05:08,969 INFO L226 Difference]: Without dead ends: 20 [2018-09-11 09:05:08,971 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-09-11 09:05:08,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-09-11 09:05:08,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-09-11 09:05:08,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-09-11 09:05:08,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2018-09-11 09:05:08,977 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 14 [2018-09-11 09:05:08,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 09:05:08,977 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2018-09-11 09:05:08,978 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-11 09:05:08,978 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2018-09-11 09:05:08,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-11 09:05:08,979 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 09:05:08,979 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 09:05:08,979 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_down_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 09:05:08,979 INFO L82 PathProgramCache]: Analyzing trace with hash -1516611795, now seen corresponding path program 1 times [2018-09-11 09:05:08,980 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 09:05:08,980 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-09-11 09:05:08,980 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [19], [23], [25], [29], [33], [39], [47], [48], [49], [51] [2018-09-11 09:05:08,982 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-11 09:05:08,982 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 09:05:09,072 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 09:05:09,072 INFO L272 AbstractInterpreter]: Visited 14 different actions 74 times. Merged at 6 different actions 41 times. Widened at 2 different actions 6 times. Found 1 fixpoints after 1 different actions. Largest state had 7 variables. [2018-09-11 09:05:09,100 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 09:05:09,134 INFO L232 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 51.67% of their original sizes. [2018-09-11 09:05:09,135 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 09:05:09,377 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 09:05:09,378 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 09:05:09,378 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-11 09:05:09,378 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 09:05:09,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-11 09:05:09,379 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-11 09:05:09,379 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-11 09:05:09,380 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 8 states. [2018-09-11 09:05:09,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 09:05:09,826 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2018-09-11 09:05:09,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-11 09:05:09,829 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2018-09-11 09:05:09,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 09:05:09,830 INFO L225 Difference]: With dead ends: 24 [2018-09-11 09:05:09,830 INFO L226 Difference]: Without dead ends: 0 [2018-09-11 09:05:09,831 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-11 09:05:09,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-11 09:05:09,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-11 09:05:09,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-11 09:05:09,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-11 09:05:09,832 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2018-09-11 09:05:09,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 09:05:09,833 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-11 09:05:09,833 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-11 09:05:09,833 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-11 09:05:09,833 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-11 09:05:09,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-11 09:05:10,311 WARN L175 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 13 [2018-09-11 09:05:10,557 WARN L175 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 18 [2018-09-11 09:05:10,609 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-11 09:05:10,610 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-11 09:05:10,610 INFO L426 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_down_true_unreach_call_true_termination_i____VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-09-11 09:05:10,610 INFO L429 ceAbstractionStarter]: At program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_down_true_unreach_call_true_termination_i____VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-09-11 09:05:10,610 INFO L426 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-09-11 09:05:10,610 INFO L426 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-09-11 09:05:10,611 INFO L426 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_down_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-09-11 09:05:10,611 INFO L426 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-09-11 09:05:10,611 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-11 09:05:10,611 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-11 09:05:10,611 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-11 09:05:10,611 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-11 09:05:10,611 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 10 26) no Hoare annotation was computed. [2018-09-11 09:05:10,612 INFO L422 ceAbstractionStarter]: At program point L21(line 21) the Hoare annotation is: (let ((.cse0 (* 2 main_~k~0))) (and (<= main_~k~0 (+ main_~j~0 2147483648)) (<= .cse0 4294967294) (<= main_~j~0 main_~k~0) (<= 2 .cse0))) [2018-09-11 09:05:10,612 INFO L426 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-09-11 09:05:10,612 INFO L426 ceAbstractionStarter]: For program point L15-1(lines 15 18) no Hoare annotation was computed. [2018-09-11 09:05:10,612 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 10 26) no Hoare annotation was computed. [2018-09-11 09:05:10,613 INFO L422 ceAbstractionStarter]: At program point L15-3(lines 15 18) the Hoare annotation is: (and (<= 0 (* 2 main_~k~0)) (<= main_~i~0 (+ main_~n~0 2147483648)) (<= (* 2 main_~n~0) 4294967294) (<= (+ main_~i~0 main_~k~0) 4294967294) (<= main_~i~0 main_~k~0) (<= main_~k~0 main_~i~0)) [2018-09-11 09:05:10,613 INFO L426 ceAbstractionStarter]: For program point L15-4(lines 15 18) no Hoare annotation was computed. [2018-09-11 09:05:10,613 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 10 26) the Hoare annotation is: true [2018-09-11 09:05:10,613 INFO L426 ceAbstractionStarter]: For program point L20-1(lines 20 24) no Hoare annotation was computed. [2018-09-11 09:05:10,613 INFO L422 ceAbstractionStarter]: At program point L20-3(lines 20 24) the Hoare annotation is: (let ((.cse0 (* 2 main_~k~0))) (and (<= main_~k~0 (+ main_~j~0 2147483648)) (<= .cse0 4294967294) (<= 0 .cse0) (<= main_~j~0 main_~k~0))) [2018-09-11 09:05:10,614 INFO L426 ceAbstractionStarter]: For program point L20-4(lines 20 24) no Hoare annotation was computed. [2018-09-11 09:05:10,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 09:05:10 BoogieIcfgContainer [2018-09-11 09:05:10,631 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-11 09:05:10,634 INFO L168 Benchmark]: Toolchain (without parser) took 3432.16 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 2.1 GB in the end (delta: -683.7 MB). Peak memory consumption was 56.6 MB. Max. memory is 7.1 GB. [2018-09-11 09:05:10,635 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-09-11 09:05:10,636 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.95 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 09:05:10,638 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.23 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 09:05:10,639 INFO L168 Benchmark]: Boogie Preprocessor took 22.57 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 09:05:10,639 INFO L168 Benchmark]: RCFGBuilder took 345.86 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: -793.1 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-09-11 09:05:10,641 INFO L168 Benchmark]: TraceAbstraction took 2736.92 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 98.9 MB). Peak memory consumption was 98.9 MB. Max. memory is 7.1 GB. [2018-09-11 09:05:10,647 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 295.95 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 23.23 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 22.57 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 345.86 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: -793.1 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2736.92 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 98.9 MB). Peak memory consumption was 98.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: ((k <= j + 2147483648 && 2 * k <= 4294967294) && 0 <= 2 * k) && j <= k - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: ((((0 <= 2 * k && i <= n + 2147483648) && 2 * n <= 4294967294) && i + k <= 4294967294) && i <= k) && k <= i - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 1 error locations. SAFE Result, 2.6s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.7s HoareAnnotationTime, HoareTripleCheckerStatistics: 47 SDtfs, 31 SDslu, 109 SDs, 0 SdLazy, 75 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.3s AbstIntTime, 3 AbstIntIterations, 3 AbstIntStrong, 0.9682142857142859 AbsIntWeakeningRatio, 0.5 AbsIntAvgWeakeningVarsNumRemoved, 4.175 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 11 PreInvPairs, 17 NumberOfFragments, 70 HoareAnnotationTreeSize, 11 FomulaSimplifications, 261 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 8 FomulaSimplificationsInter, 385 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/down_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-11_09-05-10-672.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/down_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-11_09-05-10-672.csv Received shutdown request...