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_INTCON-OldIcfg.epf -i ../../../trunk/examples/svcomp/loops/sum_array_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ddc4263 [2018-08-08 15:06:07,442 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-08-08 15:06:07,444 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-08-08 15:06:07,457 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-08-08 15:06:07,457 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-08-08 15:06:07,459 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-08-08 15:06:07,460 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-08-08 15:06:07,462 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-08-08 15:06:07,464 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-08-08 15:06:07,465 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-08-08 15:06:07,466 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-08-08 15:06:07,466 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-08-08 15:06:07,467 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-08-08 15:06:07,468 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-08-08 15:06:07,471 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-08-08 15:06:07,472 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-08-08 15:06:07,474 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-08-08 15:06:07,479 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-08-08 15:06:07,481 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-08-08 15:06:07,483 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-08-08 15:06:07,484 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-08-08 15:06:07,486 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-08-08 15:06:07,488 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-08-08 15:06:07,489 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-08-08 15:06:07,489 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-08-08 15:06:07,490 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-08-08 15:06:07,491 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-08-08 15:06:07,492 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-08-08 15:06:07,493 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-08-08 15:06:07,494 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-08-08 15:06:07,495 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-08-08 15:06:07,496 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-08-08 15:06:07,496 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-08-08 15:06:07,496 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-08-08 15:06:07,497 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-08-08 15:06:07,498 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-08-08 15:06:07,499 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf [2018-08-08 15:06:07,515 INFO L110 SettingsManager]: Loading preferences was successful [2018-08-08 15:06:07,516 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-08-08 15:06:07,517 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-08-08 15:06:07,517 INFO L133 SettingsManager]: * User list type=DISABLED [2018-08-08 15:06:07,517 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-08-08 15:06:07,517 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-08-08 15:06:07,518 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-08-08 15:06:07,518 INFO L133 SettingsManager]: * Octagon Domain=false [2018-08-08 15:06:07,518 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-08-08 15:06:07,518 INFO L133 SettingsManager]: * Log string format=TERM [2018-08-08 15:06:07,518 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-08-08 15:06:07,519 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-08-08 15:06:07,519 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-08-08 15:06:07,519 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-08-08 15:06:07,520 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-08-08 15:06:07,520 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-08-08 15:06:07,520 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-08-08 15:06:07,520 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-08-08 15:06:07,520 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-08-08 15:06:07,521 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-08-08 15:06:07,521 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-08-08 15:06:07,521 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-08-08 15:06:07,521 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-08-08 15:06:07,521 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-08 15:06:07,522 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-08-08 15:06:07,522 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-08-08 15:06:07,522 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-08-08 15:06:07,522 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-08-08 15:06:07,522 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-08-08 15:06:07,523 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-08-08 15:06:07,523 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-08-08 15:06:07,523 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-08-08 15:06:07,523 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-08-08 15:06:07,588 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-08-08 15:06:07,604 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-08-08 15:06:07,608 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-08-08 15:06:07,610 INFO L271 PluginConnector]: Initializing CDTParser... [2018-08-08 15:06:07,610 INFO L276 PluginConnector]: CDTParser initialized [2018-08-08 15:06:07,611 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/sum_array_true-unreach-call.i [2018-08-08 15:06:07,954 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee60c38ae/0d6b33e77c4a4cc08d61358d74198810/FLAGdc619e97a [2018-08-08 15:06:08,126 INFO L276 CDTParser]: Found 1 translation units. [2018-08-08 15:06:08,127 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/sum_array_true-unreach-call.i [2018-08-08 15:06:08,134 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee60c38ae/0d6b33e77c4a4cc08d61358d74198810/FLAGdc619e97a [2018-08-08 15:06:08,150 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee60c38ae/0d6b33e77c4a4cc08d61358d74198810 [2018-08-08 15:06:08,162 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-08-08 15:06:08,164 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-08-08 15:06:08,165 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-08-08 15:06:08,165 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-08-08 15:06:08,172 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-08-08 15:06:08,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 03:06:08" (1/1) ... [2018-08-08 15:06:08,177 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f591c23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:06:08, skipping insertion in model container [2018-08-08 15:06:08,177 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 03:06:08" (1/1) ... [2018-08-08 15:06:08,325 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-08-08 15:06:08,370 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 15:06:08,387 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-08-08 15:06:08,398 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 15:06:08,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:06:08 WrapperNode [2018-08-08 15:06:08,412 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-08-08 15:06:08,414 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-08-08 15:06:08,414 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-08-08 15:06:08,414 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-08-08 15:06:08,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:06:08" (1/1) ... [2018-08-08 15:06:08,431 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:06:08" (1/1) ... [2018-08-08 15:06:08,438 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-08-08 15:06:08,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-08-08 15:06:08,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-08-08 15:06:08,439 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-08-08 15:06:08,450 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:06:08" (1/1) ... [2018-08-08 15:06:08,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:06:08" (1/1) ... [2018-08-08 15:06:08,451 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:06:08" (1/1) ... [2018-08-08 15:06:08,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:06:08" (1/1) ... [2018-08-08 15:06:08,456 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:06:08" (1/1) ... [2018-08-08 15:06:08,469 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:06:08" (1/1) ... [2018-08-08 15:06:08,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:06:08" (1/1) ... [2018-08-08 15:06:08,479 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-08-08 15:06:08,480 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-08-08 15:06:08,480 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-08-08 15:06:08,480 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-08-08 15:06:08,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:06:08" (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 15:06:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-08-08 15:06:08,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-08-08 15:06:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_sum_array_true_unreach_call_i____VERIFIER_assert [2018-08-08 15:06:08,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_sum_array_true_unreach_call_i____VERIFIER_assert [2018-08-08 15:06:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-08-08 15:06:08,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-08-08 15:06:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-08-08 15:06:08,554 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-08-08 15:06:09,037 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-08-08 15:06:09,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 03:06:09 BoogieIcfgContainer [2018-08-08 15:06:09,038 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-08-08 15:06:09,039 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-08-08 15:06:09,040 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-08-08 15:06:09,043 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-08-08 15:06:09,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.08 03:06:08" (1/3) ... [2018-08-08 15:06:09,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ecbfa0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 03:06:09, skipping insertion in model container [2018-08-08 15:06:09,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:06:08" (2/3) ... [2018-08-08 15:06:09,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ecbfa0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 03:06:09, skipping insertion in model container [2018-08-08 15:06:09,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 03:06:09" (3/3) ... [2018-08-08 15:06:09,047 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_array_true-unreach-call.i [2018-08-08 15:06:09,057 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-08-08 15:06:09,065 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-08-08 15:06:09,114 INFO L129 ementStrategyFactory]: Using default assertion order modulation [2018-08-08 15:06:09,115 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-08-08 15:06:09,115 INFO L382 AbstractCegarLoop]: Hoare is true [2018-08-08 15:06:09,115 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-08-08 15:06:09,115 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-08-08 15:06:09,116 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-08-08 15:06:09,116 INFO L386 AbstractCegarLoop]: Difference is false [2018-08-08 15:06:09,116 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-08-08 15:06:09,116 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-08-08 15:06:09,138 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-08-08 15:06:09,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-08-08 15:06:09,148 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 15:06:09,149 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 15:06:09,150 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_sum_array_true_unreach_call_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 15:06:09,155 INFO L82 PathProgramCache]: Analyzing trace with hash -426515113, now seen corresponding path program 1 times [2018-08-08 15:06:09,157 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 15:06:09,158 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 18 with the following transitions: [2018-08-08 15:06:09,161 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [32], [34], [51], [53], [66], [68], [72], [77], [85], [86], [87], [89] [2018-08-08 15:06:09,197 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-08-08 15:06:09,197 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 15:06:09,269 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 15:06:09,270 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Never found a fixpoint. Largest state had 6 variables. [2018-08-08 15:06:09,300 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 15:06:09,350 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 100% of their original sizes. [2018-08-08 15:06:09,350 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 15:06:09,353 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 15:06:09,355 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 15:06:09,355 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-08-08 15:06:09,355 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 15:06:09,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-08-08 15:06:09,369 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-08-08 15:06:09,370 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-08-08 15:06:09,372 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2018-08-08 15:06:09,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 15:06:09,398 INFO L93 Difference]: Finished difference Result 57 states and 75 transitions. [2018-08-08 15:06:09,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-08-08 15:06:09,400 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-08-08 15:06:09,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 15:06:09,409 INFO L225 Difference]: With dead ends: 57 [2018-08-08 15:06:09,410 INFO L226 Difference]: Without dead ends: 29 [2018-08-08 15:06:09,413 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-08-08 15:06:09,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-08-08 15:06:09,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-08-08 15:06:09,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-08-08 15:06:09,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2018-08-08 15:06:09,459 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 17 [2018-08-08 15:06:09,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 15:06:09,459 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2018-08-08 15:06:09,460 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-08-08 15:06:09,460 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2018-08-08 15:06:09,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-08-08 15:06:09,461 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 15:06:09,461 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 15:06:09,461 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_sum_array_true_unreach_call_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 15:06:09,462 INFO L82 PathProgramCache]: Analyzing trace with hash -637687685, now seen corresponding path program 1 times [2018-08-08 15:06:09,462 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 15:06:09,462 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 21 with the following transitions: [2018-08-08 15:06:09,463 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [19], [22], [34], [38], [41], [53], [57], [60], [68], [72], [77], [85], [86], [87], [89] [2018-08-08 15:06:09,464 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-08-08 15:06:09,465 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 15:06:09,478 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 15:06:09,500 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-08-08 15:06:09,500 INFO L272 AbstractInterpreter]: Visited 20 different actions 20 times. Never merged. Never widened. Never found a fixpoint. Largest state had 6 variables. [2018-08-08 15:06:09,527 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-08-08 15:06:09,541 WARN L205 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-08-08 15:06:09,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.08 03:06:09 BoogieIcfgContainer [2018-08-08 15:06:09,542 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-08-08 15:06:09,543 INFO L168 Benchmark]: Toolchain (without parser) took 1380.51 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 732.4 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -724.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 7.1 GB. [2018-08-08 15:06:09,545 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. [2018-08-08 15:06:09,546 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.68 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. [2018-08-08 15:06:09,547 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.59 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 15:06:09,548 INFO L168 Benchmark]: Boogie Preprocessor took 40.76 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 15:06:09,548 INFO L168 Benchmark]: RCFGBuilder took 558.66 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 732.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -768.2 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2018-08-08 15:06:09,549 INFO L168 Benchmark]: TraceAbstraction took 502.70 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: 32.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 7.1 GB. [2018-08-08 15:06:09,554 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 247.68 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 24.59 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 40.76 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 558.66 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 732.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -768.2 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 502.70 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: 32.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 6]: 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: [L13] unsigned int M = __VERIFIER_nondet_uint(); [L14] int A[M], B[M], C[M]; [L15] unsigned int i; [L16] i=0 [L16] COND FALSE !(i