java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-new/gauss_sum_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ddc4263 [2018-08-08 11:23:07,279 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-08-08 11:23:07,281 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-08-08 11:23:07,298 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-08-08 11:23:07,299 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-08-08 11:23:07,300 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-08-08 11:23:07,302 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-08-08 11:23:07,305 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-08-08 11:23:07,308 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-08-08 11:23:07,309 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-08-08 11:23:07,317 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-08-08 11:23:07,318 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-08-08 11:23:07,319 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-08-08 11:23:07,322 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-08-08 11:23:07,324 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-08-08 11:23:07,325 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-08-08 11:23:07,326 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-08-08 11:23:07,331 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-08-08 11:23:07,333 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-08-08 11:23:07,337 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-08-08 11:23:07,339 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-08-08 11:23:07,342 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-08-08 11:23:07,347 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-08-08 11:23:07,347 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-08-08 11:23:07,348 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-08-08 11:23:07,349 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-08-08 11:23:07,350 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-08-08 11:23:07,351 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-08-08 11:23:07,353 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-08-08 11:23:07,355 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-08-08 11:23:07,355 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-08-08 11:23:07,356 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-08-08 11:23:07,356 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-08-08 11:23:07,356 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-08-08 11:23:07,358 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-08-08 11:23:07,359 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-08-08 11:23:07,359 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 [2018-08-08 11:23:07,385 INFO L110 SettingsManager]: Loading preferences was successful [2018-08-08 11:23:07,386 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-08-08 11:23:07,387 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-08-08 11:23:07,387 INFO L133 SettingsManager]: * User list type=DISABLED [2018-08-08 11:23:07,387 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-08-08 11:23:07,387 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-08-08 11:23:07,388 INFO L133 SettingsManager]: * Congruence Domain=false [2018-08-08 11:23:07,388 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-08-08 11:23:07,388 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-08-08 11:23:07,388 INFO L133 SettingsManager]: * Log string format=TERM [2018-08-08 11:23:07,389 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-08-08 11:23:07,389 INFO L133 SettingsManager]: * Interval Domain=false [2018-08-08 11:23:07,390 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-08-08 11:23:07,390 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-08-08 11:23:07,390 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-08-08 11:23:07,390 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-08-08 11:23:07,391 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-08-08 11:23:07,391 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-08-08 11:23:07,391 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-08-08 11:23:07,391 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-08-08 11:23:07,393 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-08-08 11:23:07,393 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-08-08 11:23:07,393 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-08-08 11:23:07,394 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-08-08 11:23:07,394 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-08 11:23:07,394 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-08-08 11:23:07,394 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-08-08 11:23:07,394 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-08-08 11:23:07,395 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-08-08 11:23:07,395 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-08-08 11:23:07,395 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-08-08 11:23:07,395 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-08-08 11:23:07,395 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-08-08 11:23:07,396 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-08-08 11:23:07,463 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-08-08 11:23:07,477 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-08-08 11:23:07,481 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-08-08 11:23:07,483 INFO L271 PluginConnector]: Initializing CDTParser... [2018-08-08 11:23:07,483 INFO L276 PluginConnector]: CDTParser initialized [2018-08-08 11:23:07,484 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/gauss_sum_true-unreach-call_true-termination.i [2018-08-08 11:23:07,836 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79d85bea2/ee56ff9a74bf491fa4078662f9f947a4/FLAGdb64ed04b [2018-08-08 11:23:07,983 INFO L276 CDTParser]: Found 1 translation units. [2018-08-08 11:23:07,984 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/gauss_sum_true-unreach-call_true-termination.i [2018-08-08 11:23:07,991 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79d85bea2/ee56ff9a74bf491fa4078662f9f947a4/FLAGdb64ed04b [2018-08-08 11:23:08,009 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79d85bea2/ee56ff9a74bf491fa4078662f9f947a4 [2018-08-08 11:23:08,021 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-08-08 11:23:08,023 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-08-08 11:23:08,024 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-08-08 11:23:08,024 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-08-08 11:23:08,034 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-08-08 11:23:08,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 11:23:08" (1/1) ... [2018-08-08 11:23:08,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76def0c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:23:08, skipping insertion in model container [2018-08-08 11:23:08,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 11:23:08" (1/1) ... [2018-08-08 11:23:08,250 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-08-08 11:23:08,283 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 11:23:08,297 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-08-08 11:23:08,302 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 11:23:08,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:23:08 WrapperNode [2018-08-08 11:23:08,316 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-08-08 11:23:08,317 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-08-08 11:23:08,317 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-08-08 11:23:08,317 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-08-08 11:23:08,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:23:08" (1/1) ... [2018-08-08 11:23:08,330 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:23:08" (1/1) ... [2018-08-08 11:23:08,335 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-08-08 11:23:08,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-08-08 11:23:08,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-08-08 11:23:08,336 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-08-08 11:23:08,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:23:08" (1/1) ... [2018-08-08 11:23:08,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:23:08" (1/1) ... [2018-08-08 11:23:08,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:23:08" (1/1) ... [2018-08-08 11:23:08,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:23:08" (1/1) ... [2018-08-08 11:23:08,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:23:08" (1/1) ... [2018-08-08 11:23:08,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:23:08" (1/1) ... [2018-08-08 11:23:08,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:23:08" (1/1) ... [2018-08-08 11:23:08,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-08-08 11:23:08,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-08-08 11:23:08,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-08-08 11:23:08,356 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-08-08 11:23:08,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:23:08" (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 [2018-08-08 11:23:08,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-08-08 11:23:08,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-08-08 11:23:08,431 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_new_gauss_sum_true_unreach_call_true_termination_i____VERIFIER_assert [2018-08-08 11:23:08,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_new_gauss_sum_true_unreach_call_true_termination_i____VERIFIER_assert [2018-08-08 11:23:08,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-08-08 11:23:08,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-08-08 11:23:08,431 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-08-08 11:23:08,431 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-08-08 11:23:08,683 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-08-08 11:23:08,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 11:23:08 BoogieIcfgContainer [2018-08-08 11:23:08,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-08-08 11:23:08,685 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-08-08 11:23:08,685 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-08-08 11:23:08,688 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-08-08 11:23:08,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.08 11:23:08" (1/3) ... [2018-08-08 11:23:08,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68b9238e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 11:23:08, skipping insertion in model container [2018-08-08 11:23:08,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:23:08" (2/3) ... [2018-08-08 11:23:08,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68b9238e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 11:23:08, skipping insertion in model container [2018-08-08 11:23:08,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 11:23:08" (3/3) ... [2018-08-08 11:23:08,692 INFO L112 eAbstractionObserver]: Analyzing ICFG gauss_sum_true-unreach-call_true-termination.i [2018-08-08 11:23:08,702 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-08-08 11:23:08,711 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-08-08 11:23:08,763 INFO L129 ementStrategyFactory]: Using default assertion order modulation [2018-08-08 11:23:08,764 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-08-08 11:23:08,764 INFO L382 AbstractCegarLoop]: Hoare is true [2018-08-08 11:23:08,764 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-08-08 11:23:08,764 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-08-08 11:23:08,765 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-08-08 11:23:08,765 INFO L386 AbstractCegarLoop]: Difference is false [2018-08-08 11:23:08,765 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-08-08 11:23:08,765 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-08-08 11:23:08,784 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-08-08 11:23:08,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-08-08 11:23:08,790 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 11:23:08,791 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 11:23:08,792 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_new_gauss_sum_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 11:23:08,798 INFO L82 PathProgramCache]: Analyzing trace with hash -1644892263, now seen corresponding path program 1 times [2018-08-08 11:23:08,800 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 11:23:08,802 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 12 with the following transitions: [2018-08-08 11:23:08,804 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [19], [32], [37], [38], [39], [41] [2018-08-08 11:23:08,857 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 11:23:08,858 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 11:23:08,904 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 11:23:08,906 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Never found a fixpoint. Largest state had 4 variables. [2018-08-08 11:23:08,937 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 11:23:08,990 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 33.33% of their original sizes. [2018-08-08 11:23:08,990 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 11:23:09,023 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 11:23:09,025 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 11:23:09,025 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-08-08 11:23:09,025 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 11:23:09,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-08-08 11:23:09,041 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-08-08 11:23:09,042 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-08-08 11:23:09,044 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 4 states. [2018-08-08 11:23:09,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 11:23:09,225 INFO L93 Difference]: Finished difference Result 39 states and 47 transitions. [2018-08-08 11:23:09,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-08-08 11:23:09,227 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-08-08 11:23:09,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 11:23:09,238 INFO L225 Difference]: With dead ends: 39 [2018-08-08 11:23:09,239 INFO L226 Difference]: Without dead ends: 17 [2018-08-08 11:23:09,243 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-08-08 11:23:09,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-08-08 11:23:09,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 14. [2018-08-08 11:23:09,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-08-08 11:23:09,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-08-08 11:23:09,286 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2018-08-08 11:23:09,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 11:23:09,287 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-08-08 11:23:09,287 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-08-08 11:23:09,287 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-08-08 11:23:09,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-08-08 11:23:09,288 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 11:23:09,288 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 11:23:09,289 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_new_gauss_sum_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 11:23:09,289 INFO L82 PathProgramCache]: Analyzing trace with hash 277620926, now seen corresponding path program 1 times [2018-08-08 11:23:09,289 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 11:23:09,290 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 13 with the following transitions: [2018-08-08 11:23:09,290 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [19], [23], [26], [37], [38], [39], [41] [2018-08-08 11:23:09,292 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 11:23:09,293 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 11:23:09,298 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 11:23:09,298 INFO L272 AbstractInterpreter]: Visited 8 different actions 8 times. Never merged. Never widened. Never found a fixpoint. Largest state had 4 variables. [2018-08-08 11:23:09,308 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 11:23:09,326 INFO L224 lantSequenceWeakener]: Could never weaken! [2018-08-08 11:23:09,327 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 11:23:09,371 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 11:23:09,371 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 11:23:09,371 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-08-08 11:23:09,372 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 11:23:09,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-08-08 11:23:09,373 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-08-08 11:23:09,373 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-08-08 11:23:09,374 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 4 states. [2018-08-08 11:23:09,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 11:23:09,449 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2018-08-08 11:23:09,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-08-08 11:23:09,450 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-08-08 11:23:09,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 11:23:09,452 INFO L225 Difference]: With dead ends: 21 [2018-08-08 11:23:09,452 INFO L226 Difference]: Without dead ends: 16 [2018-08-08 11:23:09,454 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-08-08 11:23:09,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-08-08 11:23:09,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-08-08 11:23:09,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-08-08 11:23:09,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-08-08 11:23:09,463 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 12 [2018-08-08 11:23:09,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 11:23:09,463 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-08-08 11:23:09,463 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-08-08 11:23:09,463 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-08-08 11:23:09,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-08-08 11:23:09,464 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 11:23:09,464 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 11:23:09,465 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_new_gauss_sum_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 11:23:09,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1462211701, now seen corresponding path program 1 times [2018-08-08 11:23:09,465 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 11:23:09,465 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 16 with the following transitions: [2018-08-08 11:23:09,466 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [19], [23], [26], [28], [30], [37], [38], [39], [41] [2018-08-08 11:23:09,468 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 11:23:09,468 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 11:23:09,630 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-08-08 11:23:09,630 INFO L272 AbstractInterpreter]: Visited 14 different actions 112 times. Merged at 4 different actions 51 times. Widened at 1 different actions 9 times. Found 1 fixpoints after 1 different actions. Largest state had 5 variables. [2018-08-08 11:23:09,645 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-08-08 11:23:09,660 WARN L205 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-08-08 11:23:09,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.08 11:23:09 BoogieIcfgContainer [2018-08-08 11:23:09,660 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-08-08 11:23:09,661 INFO L168 Benchmark]: Toolchain (without parser) took 1639.78 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 746.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -739.0 MB). Peak memory consumption was 7.1 MB. Max. memory is 7.1 GB. [2018-08-08 11:23:09,664 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-08-08 11:23:09,664 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.08 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2018-08-08 11:23:09,665 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.08 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. [2018-08-08 11:23:09,666 INFO L168 Benchmark]: Boogie Preprocessor took 19.16 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. [2018-08-08 11:23:09,667 INFO L168 Benchmark]: RCFGBuilder took 328.80 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 746.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -798.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2018-08-08 11:23:09,668 INFO L168 Benchmark]: TraceAbstraction took 975.68 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 46.7 MB). Peak memory consumption was 46.7 MB. Max. memory is 7.1 GB. [2018-08-08 11:23:09,673 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 292.08 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 19.08 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 19.16 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 328.80 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 746.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -798.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 975.68 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 46.7 MB). Peak memory consumption was 46.7 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, sum, i; [L12] n = __VERIFIER_nondet_int() [L13] COND FALSE !(!(1 <= n && n <= 1000)) [L14] sum = 0 [L15] i = 1 [L15] COND TRUE i <= n [L16] sum = sum + i [L15] i++ [L15] i++ [L15] COND FALSE !(i <= n) [L18] CALL __VERIFIER_assert(2*sum == n*(n+1)) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. UNKNOWN Result, 0.9s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 32 SDtfs, 18 SDslu, 39 SDs, 0 SdLazy, 16 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 2 AbstIntStrong, 0.9523809523809523 AbsIntWeakeningRatio, 0.6666666666666666 AbsIntAvgWeakeningVarsNumRemoved, 0.47619047619047616 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/gauss_sum_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-08-08_11-23-09-686.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/gauss_sum_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-08-08_11-23-09-686.csv Received shutdown request...