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_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-20 21:15:34,266 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-20 21:15:34,268 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-20 21:15:34,282 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-20 21:15:34,282 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-20 21:15:34,284 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-20 21:15:34,285 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-20 21:15:34,293 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-20 21:15:34,294 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-20 21:15:34,297 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-20 21:15:34,298 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-20 21:15:34,298 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-20 21:15:34,299 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-20 21:15:34,299 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-20 21:15:34,302 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-20 21:15:34,303 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-20 21:15:34,304 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-20 21:15:34,313 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-20 21:15:34,315 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-20 21:15:34,316 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-20 21:15:34,317 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-20 21:15:34,318 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-20 21:15:34,324 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-20 21:15:34,324 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-20 21:15:34,324 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-20 21:15:34,325 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-20 21:15:34,330 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-20 21:15:34,331 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-20 21:15:34,331 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-20 21:15:34,332 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-20 21:15:34,332 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-20 21:15:34,334 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-20 21:15:34,336 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 21:15:34,352 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-20 21:15:34,352 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-20 21:15:34,353 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-20 21:15:34,353 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-20 21:15:34,353 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-20 21:15:34,354 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-20 21:15:34,354 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-20 21:15:34,354 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-20 21:15:34,354 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-20 21:15:34,354 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-20 21:15:34,354 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-20 21:15:34,355 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-20 21:15:34,355 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-20 21:15:34,355 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-20 21:15:34,360 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-20 21:15:34,361 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-20 21:15:34,361 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-20 21:15:34,361 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-20 21:15:34,361 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-20 21:15:34,361 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-20 21:15:34,362 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-20 21:15:34,362 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-20 21:15:34,362 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-20 21:15:34,362 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-20 21:15:34,362 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-20 21:15:34,363 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-20 21:15:34,363 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-20 21:15:34,363 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-20 21:15:34,363 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-20 21:15:34,363 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-20 21:15:34,363 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-20 21:15:34,364 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-20 21:15:34,364 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-20 21:15:34,364 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-20 21:15:34,364 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-20 21:15:34,406 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-20 21:15:34,422 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-20 21:15:34,428 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-20 21:15:34,431 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-20 21:15:34,431 INFO L276 PluginConnector]: CDTParser initialized [2018-07-20 21:15:34,432 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/sum_array_true-unreach-call.i [2018-07-20 21:15:34,803 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/c8e10273d/2717f85da522479dae8e6116435cf4cc/FLAG14e7e3327 [2018-07-20 21:15:34,980 INFO L276 CDTParser]: Found 1 translation units. [2018-07-20 21:15:34,981 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/loops/sum_array_true-unreach-call.i [2018-07-20 21:15:34,988 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/c8e10273d/2717f85da522479dae8e6116435cf4cc/FLAG14e7e3327 [2018-07-20 21:15:35,004 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/c8e10273d/2717f85da522479dae8e6116435cf4cc [2018-07-20 21:15:35,012 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-20 21:15:35,020 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-20 21:15:35,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-20 21:15:35,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-20 21:15:35,031 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-20 21:15:35,032 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 09:15:35" (1/1) ... [2018-07-20 21:15:35,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2df9384a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:15:35, skipping insertion in model container [2018-07-20 21:15:35,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 09:15:35" (1/1) ... [2018-07-20 21:15:35,202 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-20 21:15:35,256 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-20 21:15:35,269 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-20 21:15:35,279 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-20 21:15:35,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:15:35 WrapperNode [2018-07-20 21:15:35,290 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-20 21:15:35,291 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-20 21:15:35,291 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-20 21:15:35,291 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-20 21:15:35,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:15:35" (1/1) ... [2018-07-20 21:15:35,309 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:15:35" (1/1) ... [2018-07-20 21:15:35,317 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-20 21:15:35,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-20 21:15:35,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-20 21:15:35,318 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-20 21:15:35,329 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:15:35" (1/1) ... [2018-07-20 21:15:35,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:15:35" (1/1) ... [2018-07-20 21:15:35,330 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:15:35" (1/1) ... [2018-07-20 21:15:35,331 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:15:35" (1/1) ... [2018-07-20 21:15:35,333 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:15:35" (1/1) ... [2018-07-20 21:15:35,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:15:35" (1/1) ... [2018-07-20 21:15:35,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:15:35" (1/1) ... [2018-07-20 21:15:35,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-20 21:15:35,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-20 21:15:35,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-20 21:15:35,345 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-20 21:15:35,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:15:35" (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 21:15:35,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-20 21:15:35,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-20 21:15:35,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-20 21:15:35,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-20 21:15:35,406 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-20 21:15:35,406 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-20 21:15:35,406 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_loops_sum_array_true_unreach_call_i____VERIFIER_assert [2018-07-20 21:15:35,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_loops_sum_array_true_unreach_call_i____VERIFIER_assert [2018-07-20 21:15:35,842 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-20 21:15:35,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 09:15:35 BoogieIcfgContainer [2018-07-20 21:15:35,843 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-20 21:15:35,843 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-20 21:15:35,844 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-20 21:15:35,847 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-20 21:15:35,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 09:15:35" (1/3) ... [2018-07-20 21:15:35,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e0fd5dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 09:15:35, skipping insertion in model container [2018-07-20 21:15:35,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:15:35" (2/3) ... [2018-07-20 21:15:35,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e0fd5dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 09:15:35, skipping insertion in model container [2018-07-20 21:15:35,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 09:15:35" (3/3) ... [2018-07-20 21:15:35,851 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_array_true-unreach-call.i [2018-07-20 21:15:35,860 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-20 21:15:35,869 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-20 21:15:35,919 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-20 21:15:35,919 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-20 21:15:35,920 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-20 21:15:35,920 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-20 21:15:35,920 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-20 21:15:35,920 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-20 21:15:35,920 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-20 21:15:35,920 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-20 21:15:35,921 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-20 21:15:35,939 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-07-20 21:15:35,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-07-20 21:15:35,945 INFO L350 BasicCegarLoop]: Found error trace [2018-07-20 21:15:35,946 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 21:15:35,947 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_loops_sum_array_true_unreach_call_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-20 21:15:35,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1047757685, now seen corresponding path program 1 times [2018-07-20 21:15:35,954 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-20 21:15:35,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 21:15:35,992 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-20 21:15:35,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 21:15:35,992 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-20 21:15:36,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-20 21:15:36,045 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 21:15:36,047 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-20 21:15:36,047 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-20 21:15:36,047 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-20 21:15:36,049 INFO L450 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-07-20 21:15:36,060 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-07-20 21:15:36,060 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-07-20 21:15:36,062 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2018-07-20 21:15:36,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-20 21:15:36,082 INFO L93 Difference]: Finished difference Result 57 states and 75 transitions. [2018-07-20 21:15:36,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-07-20 21:15:36,083 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-07-20 21:15:36,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-20 21:15:36,092 INFO L225 Difference]: With dead ends: 57 [2018-07-20 21:15:36,092 INFO L226 Difference]: Without dead ends: 29 [2018-07-20 21:15:36,096 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 21:15:36,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-07-20 21:15:36,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-07-20 21:15:36,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-07-20 21:15:36,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2018-07-20 21:15:36,142 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 17 [2018-07-20 21:15:36,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-20 21:15:36,142 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2018-07-20 21:15:36,143 INFO L472 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-07-20 21:15:36,143 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2018-07-20 21:15:36,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-07-20 21:15:36,144 INFO L350 BasicCegarLoop]: Found error trace [2018-07-20 21:15:36,146 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 21:15:36,147 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_loops_sum_array_true_unreach_call_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-20 21:15:36,147 INFO L82 PathProgramCache]: Analyzing trace with hash -274496668, now seen corresponding path program 1 times [2018-07-20 21:15:36,147 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-20 21:15:36,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 21:15:36,148 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-20 21:15:36,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 21:15:36,149 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-20 21:15:36,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-20 21:15:36,494 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 21:15:36,495 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-20 21:15:36,496 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-20 21:15:36,496 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-20 21:15:36,498 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-20 21:15:36,498 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-20 21:15:36,498 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-20 21:15:36,499 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand 5 states. [2018-07-20 21:15:37,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-20 21:15:37,087 INFO L93 Difference]: Finished difference Result 72 states and 83 transitions. [2018-07-20 21:15:37,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-20 21:15:37,088 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-07-20 21:15:37,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-20 21:15:37,091 INFO L225 Difference]: With dead ends: 72 [2018-07-20 21:15:37,091 INFO L226 Difference]: Without dead ends: 44 [2018-07-20 21:15:37,092 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-07-20 21:15:37,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-07-20 21:15:37,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 35. [2018-07-20 21:15:37,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-07-20 21:15:37,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2018-07-20 21:15:37,105 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 20 [2018-07-20 21:15:37,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-20 21:15:37,106 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2018-07-20 21:15:37,106 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-20 21:15:37,106 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2018-07-20 21:15:37,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-07-20 21:15:37,108 INFO L350 BasicCegarLoop]: Found error trace [2018-07-20 21:15:37,108 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, 1, 1] [2018-07-20 21:15:37,108 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_loops_sum_array_true_unreach_call_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-20 21:15:37,109 INFO L82 PathProgramCache]: Analyzing trace with hash 713860040, now seen corresponding path program 1 times [2018-07-20 21:15:37,109 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-20 21:15:37,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 21:15:37,110 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-20 21:15:37,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 21:15:37,110 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-20 21:15:37,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-20 21:15:37,676 WARN L169 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 18 [2018-07-20 21:15:37,927 WARN L169 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 21 [2018-07-20 21:15:37,962 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-20 21:15:37,962 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-20 21:15:37,962 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-20 21:15:37,963 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 32 with the following transitions: [2018-07-20 21:15:37,969 INFO L201 CegarAbsIntRunner]: [0], [4], [8], [11], [13], [17], [19], [23], [27], [30], [32], [36], [38], [42], [46], [49], [51], [53], [57], [61], [66], [74], [77], [79], [85], [86], [87], [89] [2018-07-20 21:15:38,017 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-20 21:15:38,018 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-20 21:15:38,121 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-20 21:15:38,657 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-07-20 21:15:38,659 INFO L272 AbstractInterpreter]: Visited 28 different actions 232 times. Merged at 14 different actions 168 times. Widened at 3 different actions 24 times. Found 39 fixpoints after 6 different actions. Largest state had 11 variables. [2018-07-20 21:15:38,704 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-07-20 21:15:38,704 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-20 21:15:38,705 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-20 21:15:38,720 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-20 21:15:38,720 INFO L282 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-20 21:15:38,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-20 21:15:38,770 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-20 21:15:38,874 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-07-20 21:15:38,875 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-20 21:15:38,898 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-20 21:15:38,898 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:1 [2018-07-20 21:15:38,915 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-07-20 21:15:38,916 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-20 21:15:38,924 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-20 21:15:38,924 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:1 [2018-07-20 21:15:38,936 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2018-07-20 21:15:38,937 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-20 21:15:38,965 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-07-20 21:15:38,965 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:24 [2018-07-20 21:15:39,110 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-20 21:15:39,111 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-20 21:15:39,564 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2018-07-20 21:15:39,565 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-20 21:15:39,579 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-20 21:15:39,579 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:5 [2018-07-20 21:15:39,603 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-07-20 21:15:39,626 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-20 21:15:39,626 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-20 21:15:39,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-20 21:15:39,642 INFO L282 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-20 21:15:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-20 21:15:39,775 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-20 21:15:39,807 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-07-20 21:15:39,807 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-20 21:15:39,812 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-20 21:15:39,813 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:7 [2018-07-20 21:15:39,862 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-07-20 21:15:39,863 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-20 21:15:39,866 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-20 21:15:39,867 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:9 [2018-07-20 21:15:39,872 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-07-20 21:15:39,872 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-20 21:15:39,874 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-20 21:15:39,874 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-07-20 21:15:39,900 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-20 21:15:39,900 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-20 21:15:39,962 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2018-07-20 21:15:39,963 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-20 21:15:40,006 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-20 21:15:40,006 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:13 [2018-07-20 21:15:40,077 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-07-20 21:15:40,080 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-20 21:15:40,081 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7, 10, 7] total 17 [2018-07-20 21:15:40,081 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-20 21:15:40,081 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-20 21:15:40,082 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-20 21:15:40,082 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2018-07-20 21:15:40,083 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 11 states. [2018-07-20 21:15:40,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-20 21:15:40,586 INFO L93 Difference]: Finished difference Result 104 states and 117 transitions. [2018-07-20 21:15:40,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-20 21:15:40,587 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 31 [2018-07-20 21:15:40,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-20 21:15:40,588 INFO L225 Difference]: With dead ends: 104 [2018-07-20 21:15:40,588 INFO L226 Difference]: Without dead ends: 63 [2018-07-20 21:15:40,589 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 108 SyntacticMatches, 13 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2018-07-20 21:15:40,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-07-20 21:15:40,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 53. [2018-07-20 21:15:40,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-07-20 21:15:40,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 56 transitions. [2018-07-20 21:15:40,599 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 56 transitions. Word has length 31 [2018-07-20 21:15:40,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-20 21:15:40,599 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 56 transitions. [2018-07-20 21:15:40,599 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-20 21:15:40,600 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 56 transitions. [2018-07-20 21:15:40,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-07-20 21:15:40,601 INFO L350 BasicCegarLoop]: Found error trace [2018-07-20 21:15:40,601 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-20 21:15:40,601 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_loops_sum_array_true_unreach_call_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-20 21:15:40,602 INFO L82 PathProgramCache]: Analyzing trace with hash 1640935623, now seen corresponding path program 1 times [2018-07-20 21:15:40,602 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-20 21:15:40,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 21:15:40,603 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-20 21:15:40,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 21:15:40,603 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-20 21:15:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2018-07-20 21:20:22,816 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Timeout exceeded at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$IntegerInterpolator.interpolate(Interpolator.java:1426) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$MixedLAInterpolator.convert(Interpolator.java:1282) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:125) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:121) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:73) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:239) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.mixedPivotLA(Interpolator.java:1472) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.combine(Interpolator.java:357) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.access$2(Interpolator.java:326) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$CombineInterpolants.walk(Interpolator.java:153) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:220) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:201) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:919) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:199) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:282) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:271) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:207) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:210) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:180) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getTraceCheck(BaseTaipanRefinementStrategy.java:215) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:220) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:194) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:411) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:425) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:367) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:309) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:151) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:119) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-07-20 21:20:22,819 INFO L168 Benchmark]: Toolchain (without parser) took 287806.67 ms. Allocated memory was 304.6 MB in the beginning and 1.6 GB in the end (delta: 1.2 GB). Free memory was 249.0 MB in the beginning and 1.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 2.0 GB. Max. memory is 5.3 GB. [2018-07-20 21:20:22,820 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 304.6 MB. Free memory is still 268.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-20 21:20:22,821 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.71 ms. Allocated memory is still 304.6 MB. Free memory was 248.0 MB in the beginning and 237.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 5.3 GB. [2018-07-20 21:20:22,821 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.82 ms. Allocated memory is still 304.6 MB. Free memory was 237.3 MB in the beginning and 236.3 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. [2018-07-20 21:20:22,822 INFO L168 Benchmark]: Boogie Preprocessor took 26.74 ms. Allocated memory is still 304.6 MB. Free memory was 236.3 MB in the beginning and 235.3 MB in the end (delta: 996.4 kB). Peak memory consumption was 996.4 kB. Max. memory is 5.3 GB. [2018-07-20 21:20:22,822 INFO L168 Benchmark]: RCFGBuilder took 498.07 ms. Allocated memory was 304.6 MB in the beginning and 464.5 MB in the end (delta: 159.9 MB). Free memory was 235.3 MB in the beginning and 431.6 MB in the end (delta: -196.3 MB). Peak memory consumption was 22.7 MB. Max. memory is 5.3 GB. [2018-07-20 21:20:22,823 INFO L168 Benchmark]: TraceAbstraction took 286975.48 ms. Allocated memory was 464.5 MB in the beginning and 1.6 GB in the end (delta: 1.1 GB). Free memory was 431.6 MB in the beginning and 1.3 GB in the end (delta: -900.1 MB). Peak memory consumption was 2.1 GB. Max. memory is 5.3 GB. [2018-07-20 21:20:22,827 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 304.6 MB. Free memory is still 268.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 268.71 ms. Allocated memory is still 304.6 MB. Free memory was 248.0 MB in the beginning and 237.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 26.82 ms. Allocated memory is still 304.6 MB. Free memory was 237.3 MB in the beginning and 236.3 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. * Boogie Preprocessor took 26.74 ms. Allocated memory is still 304.6 MB. Free memory was 236.3 MB in the beginning and 235.3 MB in the end (delta: 996.4 kB). Peak memory consumption was 996.4 kB. Max. memory is 5.3 GB. * RCFGBuilder took 498.07 ms. Allocated memory was 304.6 MB in the beginning and 464.5 MB in the end (delta: 159.9 MB). Free memory was 235.3 MB in the beginning and 431.6 MB in the end (delta: -196.3 MB). Peak memory consumption was 22.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 286975.48 ms. Allocated memory was 464.5 MB in the beginning and 1.6 GB in the end (delta: 1.1 GB). Free memory was 431.6 MB in the beginning and 1.3 GB in the end (delta: -900.1 MB). Peak memory consumption was 2.1 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Timeout exceeded de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Timeout exceeded: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$IntegerInterpolator.interpolate(Interpolator.java:1426) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/sum_array_true-unreach-call.i_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-20_21-20-22-838.csv Completed graceful shutdown