java -Xss4m -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/loops/sum_array_false-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-20 21:04:04,454 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-20 21:04:04,456 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-20 21:04:04,470 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-20 21:04:04,471 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-20 21:04:04,471 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-20 21:04:04,474 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-20 21:04:04,479 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-20 21:04:04,482 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-20 21:04:04,483 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-20 21:04:04,483 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-20 21:04:04,484 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-20 21:04:04,484 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-20 21:04:04,485 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-20 21:04:04,488 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-20 21:04:04,489 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-20 21:04:04,489 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-20 21:04:04,500 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-20 21:04:04,502 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-20 21:04:04,503 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-20 21:04:04,504 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-20 21:04:04,505 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-20 21:04:04,510 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-20 21:04:04,510 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-20 21:04:04,510 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-20 21:04:04,511 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-20 21:04:04,515 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-20 21:04:04,515 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-20 21:04:04,516 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-20 21:04:04,517 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-20 21:04:04,517 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-20 21:04:04,521 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-20 21:04:04,522 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-20 21:04:04,522 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-20 21:04:04,523 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-20 21:04:04,523 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-20 21:04:04,524 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-07-20 21:04:04,547 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-20 21:04:04,547 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-20 21:04:04,551 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-20 21:04:04,551 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-20 21:04:04,552 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-20 21:04:04,552 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-20 21:04:04,552 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-20 21:04:04,552 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-20 21:04:04,552 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-20 21:04:04,553 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-20 21:04:04,553 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-20 21:04:04,553 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-20 21:04:04,554 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-20 21:04:04,554 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-20 21:04:04,554 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-20 21:04:04,554 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-20 21:04:04,554 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-20 21:04:04,555 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-20 21:04:04,555 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-20 21:04:04,556 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-20 21:04:04,556 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-20 21:04:04,556 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-20 21:04:04,556 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-20 21:04:04,556 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-20 21:04:04,556 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-20 21:04:04,557 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-20 21:04:04,557 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-20 21:04:04,557 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-20 21:04:04,557 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-20 21:04:04,557 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-20 21:04:04,558 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-20 21:04:04,558 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-20 21:04:04,558 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-20 21:04:04,558 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-20 21:04:04,558 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-20 21:04:04,611 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-20 21:04:04,627 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-20 21:04:04,632 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-20 21:04:04,633 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-20 21:04:04,633 INFO L276 PluginConnector]: CDTParser initialized [2018-07-20 21:04:04,634 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/sum_array_false-unreach-call.i [2018-07-20 21:04:04,978 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/10e6026ea/40365e9fb5b24c9082aeea4f1500aec0/FLAG5316f8edc [2018-07-20 21:04:05,132 INFO L276 CDTParser]: Found 1 translation units. [2018-07-20 21:04:05,132 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/loops/sum_array_false-unreach-call.i [2018-07-20 21:04:05,139 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/10e6026ea/40365e9fb5b24c9082aeea4f1500aec0/FLAG5316f8edc [2018-07-20 21:04:05,152 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/10e6026ea/40365e9fb5b24c9082aeea4f1500aec0 [2018-07-20 21:04:05,159 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-20 21:04:05,165 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-20 21:04:05,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-20 21:04:05,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-20 21:04:05,173 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-20 21:04:05,174 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 09:04:05" (1/1) ... [2018-07-20 21:04:05,177 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18723aed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:04:05, skipping insertion in model container [2018-07-20 21:04:05,177 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 09:04:05" (1/1) ... [2018-07-20 21:04:05,335 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-20 21:04:05,384 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-20 21:04:05,400 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-20 21:04:05,411 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-20 21:04:05,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:04:05 WrapperNode [2018-07-20 21:04:05,435 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-20 21:04:05,435 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-20 21:04:05,436 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-20 21:04:05,436 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-20 21:04:05,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:04:05" (1/1) ... [2018-07-20 21:04:05,454 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:04:05" (1/1) ... [2018-07-20 21:04:05,467 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-20 21:04:05,467 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-20 21:04:05,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-20 21:04:05,467 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-20 21:04:05,477 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:04:05" (1/1) ... [2018-07-20 21:04:05,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:04:05" (1/1) ... [2018-07-20 21:04:05,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:04:05" (1/1) ... [2018-07-20 21:04:05,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:04:05" (1/1) ... [2018-07-20 21:04:05,481 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:04:05" (1/1) ... [2018-07-20 21:04:05,495 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:04:05" (1/1) ... [2018-07-20 21:04:05,497 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:04:05" (1/1) ... [2018-07-20 21:04:05,499 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-20 21:04:05,499 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-20 21:04:05,500 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-20 21:04:05,500 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-20 21:04:05,501 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:04:05" (1/1) ... No working directory specified, using /storage/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 [2018-07-20 21:04:05,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-20 21:04:05,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-20 21:04:05,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-20 21:04:05,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-20 21:04:05,574 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-20 21:04:05,574 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-20 21:04:05,574 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_loops_sum_array_false_unreach_call_i____VERIFIER_assert [2018-07-20 21:04:05,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_loops_sum_array_false_unreach_call_i____VERIFIER_assert [2018-07-20 21:04:06,152 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-20 21:04:06,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 09:04:06 BoogieIcfgContainer [2018-07-20 21:04:06,153 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-20 21:04:06,154 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-20 21:04:06,154 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-20 21:04:06,157 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-20 21:04:06,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 09:04:05" (1/3) ... [2018-07-20 21:04:06,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49f5923a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 09:04:06, skipping insertion in model container [2018-07-20 21:04:06,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:04:05" (2/3) ... [2018-07-20 21:04:06,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49f5923a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 09:04:06, skipping insertion in model container [2018-07-20 21:04:06,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 09:04:06" (3/3) ... [2018-07-20 21:04:06,161 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_array_false-unreach-call.i [2018-07-20 21:04:06,172 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-20 21:04:06,181 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-20 21:04:06,225 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-20 21:04:06,226 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-20 21:04:06,226 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-20 21:04:06,226 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-20 21:04:06,226 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-20 21:04:06,227 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-20 21:04:06,227 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-20 21:04:06,227 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-20 21:04:06,227 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-20 21:04:06,253 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-07-20 21:04:06,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-07-20 21:04:06,260 INFO L350 BasicCegarLoop]: Found error trace [2018-07-20 21:04:06,261 INFO L358 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-20 21:04:06,262 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_loops_sum_array_false_unreach_call_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-20 21:04:06,268 INFO L82 PathProgramCache]: Analyzing trace with hash 809242349, now seen corresponding path program 1 times [2018-07-20 21:04:06,270 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-20 21:04:06,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 21:04:06,314 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-20 21:04:06,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 21:04:06,314 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-20 21:04:06,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-20 21:04:06,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-20 21:04:06,373 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-20 21:04:06,373 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-20 21:04:06,373 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-20 21:04:06,375 INFO L450 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-07-20 21:04:06,388 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-07-20 21:04:06,389 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-07-20 21:04:06,392 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2018-07-20 21:04:06,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-20 21:04:06,422 INFO L93 Difference]: Finished difference Result 54 states and 69 transitions. [2018-07-20 21:04:06,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-07-20 21:04:06,425 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-07-20 21:04:06,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-20 21:04:06,438 INFO L225 Difference]: With dead ends: 54 [2018-07-20 21:04:06,438 INFO L226 Difference]: Without dead ends: 27 [2018-07-20 21:04:06,447 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-07-20 21:04:06,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-07-20 21:04:06,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-07-20 21:04:06,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-07-20 21:04:06,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2018-07-20 21:04:06,487 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 17 [2018-07-20 21:04:06,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-20 21:04:06,487 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2018-07-20 21:04:06,487 INFO L472 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-07-20 21:04:06,488 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2018-07-20 21:04:06,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-07-20 21:04:06,488 INFO L350 BasicCegarLoop]: Found error trace [2018-07-20 21:04:06,489 INFO L358 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-20 21:04:06,489 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_loops_sum_array_false_unreach_call_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-20 21:04:06,489 INFO L82 PathProgramCache]: Analyzing trace with hash -1551118360, now seen corresponding path program 1 times [2018-07-20 21:04:06,489 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-20 21:04:06,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 21:04:06,490 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-20 21:04:06,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 21:04:06,490 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-20 21:04:06,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-20 21:04:06,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-20 21:04:06,652 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-20 21:04:06,652 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-20 21:04:06,652 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-20 21:04:06,654 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-20 21:04:06,654 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-20 21:04:06,654 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-20 21:04:06,655 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand 5 states. [2018-07-20 21:04:06,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-20 21:04:06,983 INFO L93 Difference]: Finished difference Result 67 states and 78 transitions. [2018-07-20 21:04:06,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-20 21:04:06,984 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-07-20 21:04:06,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-20 21:04:06,986 INFO L225 Difference]: With dead ends: 67 [2018-07-20 21:04:06,986 INFO L226 Difference]: Without dead ends: 40 [2018-07-20 21:04:06,987 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-07-20 21:04:06,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-07-20 21:04:06,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 33. [2018-07-20 21:04:07,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-07-20 21:04:07,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2018-07-20 21:04:07,001 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 20 [2018-07-20 21:04:07,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-20 21:04:07,002 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2018-07-20 21:04:07,002 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-20 21:04:07,002 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2018-07-20 21:04:07,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-07-20 21:04:07,004 INFO L350 BasicCegarLoop]: Found error trace [2018-07-20 21:04:07,004 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-20 21:04:07,005 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_loops_sum_array_false_unreach_call_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-20 21:04:07,005 INFO L82 PathProgramCache]: Analyzing trace with hash -2144297255, now seen corresponding path program 1 times [2018-07-20 21:04:07,005 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-20 21:04:07,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 21:04:07,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-20 21:04:07,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 21:04:07,006 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-20 21:04:07,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-07-20 21:04:07,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-07-20 21:04:07,170 INFO L424 BasicCegarLoop]: Counterexample might be feasible [2018-07-20 21:04:07,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 09:04:07 BoogieIcfgContainer [2018-07-20 21:04:07,196 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-20 21:04:07,197 INFO L168 Benchmark]: Toolchain (without parser) took 2036.77 ms. Allocated memory was 301.5 MB in the beginning and 467.7 MB in the end (delta: 166.2 MB). Free memory was 247.9 MB in the beginning and 391.3 MB in the end (delta: -143.4 MB). Peak memory consumption was 22.8 MB. Max. memory is 5.3 GB. [2018-07-20 21:04:07,198 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 301.5 MB. Free memory is still 266.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-20 21:04:07,199 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.81 ms. Allocated memory is still 301.5 MB. Free memory was 246.9 MB in the beginning and 237.9 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 5.3 GB. [2018-07-20 21:04:07,200 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.38 ms. Allocated memory is still 301.5 MB. Free memory was 236.9 MB in the beginning and 235.9 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. [2018-07-20 21:04:07,200 INFO L168 Benchmark]: Boogie Preprocessor took 32.06 ms. Allocated memory is still 301.5 MB. Free memory was 235.9 MB in the beginning and 234.9 MB in the end (delta: 996.2 kB). Peak memory consumption was 996.2 kB. Max. memory is 5.3 GB. [2018-07-20 21:04:07,201 INFO L168 Benchmark]: RCFGBuilder took 653.62 ms. Allocated memory was 301.5 MB in the beginning and 467.7 MB in the end (delta: 166.2 MB). Free memory was 234.9 MB in the beginning and 435.9 MB in the end (delta: -201.0 MB). Peak memory consumption was 22.6 MB. Max. memory is 5.3 GB. [2018-07-20 21:04:07,202 INFO L168 Benchmark]: TraceAbstraction took 1042.39 ms. Allocated memory is still 467.7 MB. Free memory was 435.9 MB in the beginning and 391.3 MB in the end (delta: 44.6 MB). Peak memory consumption was 44.6 MB. Max. memory is 5.3 GB. [2018-07-20 21:04:07,205 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 301.5 MB. Free memory is still 266.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 268.81 ms. Allocated memory is still 301.5 MB. Free memory was 246.9 MB in the beginning and 237.9 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 31.38 ms. Allocated memory is still 301.5 MB. Free memory was 236.9 MB in the beginning and 235.9 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. * Boogie Preprocessor took 32.06 ms. Allocated memory is still 301.5 MB. Free memory was 235.9 MB in the beginning and 234.9 MB in the end (delta: 996.2 kB). Peak memory consumption was 996.2 kB. Max. memory is 5.3 GB. * RCFGBuilder took 653.62 ms. Allocated memory was 301.5 MB in the beginning and 467.7 MB in the end (delta: 166.2 MB). Free memory was 234.9 MB in the beginning and 435.9 MB in the end (delta: -201.0 MB). Peak memory consumption was 22.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1042.39 ms. Allocated memory is still 467.7 MB. Free memory was 435.9 MB in the beginning and 391.3 MB in the end (delta: 44.6 MB). Peak memory consumption was 44.6 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] unsigned int M = __VERIFIER_nondet_uint(); [L15] int A[M], B[M], C[M]; [L16] unsigned int i; [L18] i=0 VAL [i=0, M=1] [L18] COND TRUE i