java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf -i ../../../trunk/examples/svcomp/array-memsafety/diff-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-21 05:33:20,489 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-21 05:33:20,491 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-21 05:33:20,506 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-21 05:33:20,506 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-21 05:33:20,507 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-21 05:33:20,508 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-21 05:33:20,510 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-21 05:33:20,512 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-21 05:33:20,513 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-21 05:33:20,514 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-21 05:33:20,514 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-21 05:33:20,515 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-21 05:33:20,516 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-21 05:33:20,517 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-21 05:33:20,519 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-21 05:33:20,521 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-21 05:33:20,523 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-21 05:33:20,525 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-21 05:33:20,526 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-21 05:33:20,528 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-21 05:33:20,529 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-21 05:33:20,529 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-21 05:33:20,530 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-21 05:33:20,531 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-21 05:33:20,532 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-21 05:33:20,532 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-21 05:33:20,533 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-21 05:33:20,533 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-21 05:33:20,533 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-21 05:33:20,534 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-21 05:33:20,534 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf [2018-01-21 05:33:20,544 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-21 05:33:20,545 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-21 05:33:20,545 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-21 05:33:20,546 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-21 05:33:20,546 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-21 05:33:20,546 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-21 05:33:20,546 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-21 05:33:20,546 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-21 05:33:20,547 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-21 05:33:20,547 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-21 05:33:20,547 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-21 05:33:20,548 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-21 05:33:20,548 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-21 05:33:20,548 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-21 05:33:20,548 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-21 05:33:20,548 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-21 05:33:20,548 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-21 05:33:20,549 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-21 05:33:20,549 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-21 05:33:20,549 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-21 05:33:20,549 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-21 05:33:20,549 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-21 05:33:20,550 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-21 05:33:20,550 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-21 05:33:20,550 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-21 05:33:20,550 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-21 05:33:20,551 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 05:33:20,551 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-21 05:33:20,551 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-21 05:33:20,551 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-21 05:33:20,551 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-21 05:33:20,551 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-21 05:33:20,552 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-21 05:33:20,552 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-21 05:33:20,552 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-21 05:33:20,552 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-21 05:33:20,552 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-21 05:33:20,553 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-21 05:33:20,553 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-21 05:33:20,588 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-21 05:33:20,600 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-21 05:33:20,605 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-21 05:33:20,606 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-21 05:33:20,607 INFO L276 PluginConnector]: CDTParser initialized [2018-01-21 05:33:20,607 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/diff-alloca_true-valid-memsafety_true-termination.i [2018-01-21 05:33:20,810 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-21 05:33:20,816 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-21 05:33:20,817 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-21 05:33:20,817 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-21 05:33:20,824 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-21 05:33:20,826 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 05:33:20" (1/1) ... [2018-01-21 05:33:20,829 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b2fa6e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:33:20, skipping insertion in model container [2018-01-21 05:33:20,829 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 05:33:20" (1/1) ... [2018-01-21 05:33:20,848 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 05:33:20,890 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 05:33:21,008 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 05:33:21,025 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 05:33:21,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:33:21 WrapperNode [2018-01-21 05:33:21,033 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-21 05:33:21,033 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-21 05:33:21,033 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-21 05:33:21,033 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-21 05:33:21,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:33:21" (1/1) ... [2018-01-21 05:33:21,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:33:21" (1/1) ... [2018-01-21 05:33:21,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:33:21" (1/1) ... [2018-01-21 05:33:21,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:33:21" (1/1) ... [2018-01-21 05:33:21,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:33:21" (1/1) ... [2018-01-21 05:33:21,064 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:33:21" (1/1) ... [2018-01-21 05:33:21,065 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:33:21" (1/1) ... [2018-01-21 05:33:21,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-21 05:33:21,067 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-21 05:33:21,067 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-21 05:33:21,067 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-21 05:33:21,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:33:21" (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 [2018-01-21 05:33:21,117 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-21 05:33:21,117 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-21 05:33:21,118 INFO L136 BoogieDeclarations]: Found implementation of procedure diff [2018-01-21 05:33:21,118 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-21 05:33:21,118 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-21 05:33:21,118 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-21 05:33:21,118 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-21 05:33:21,118 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-21 05:33:21,118 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-21 05:33:21,118 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-21 05:33:21,118 INFO L128 BoogieDeclarations]: Found specification of procedure diff [2018-01-21 05:33:21,119 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-21 05:33:21,119 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-21 05:33:21,119 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-21 05:33:21,325 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-21 05:33:21,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 05:33:21 BoogieIcfgContainer [2018-01-21 05:33:21,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-21 05:33:21,327 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-21 05:33:21,327 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-21 05:33:21,328 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-21 05:33:21,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.01 05:33:20" (1/3) ... [2018-01-21 05:33:21,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d1b6b93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 05:33:21, skipping insertion in model container [2018-01-21 05:33:21,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 05:33:21" (2/3) ... [2018-01-21 05:33:21,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d1b6b93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 05:33:21, skipping insertion in model container [2018-01-21 05:33:21,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 05:33:21" (3/3) ... [2018-01-21 05:33:21,332 INFO L105 eAbstractionObserver]: Analyzing ICFG diff-alloca_true-valid-memsafety_true-termination.i [2018-01-21 05:33:21,338 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-21 05:33:21,344 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-01-21 05:33:21,386 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 05:33:21,386 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 05:33:21,386 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 05:33:21,386 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 05:33:21,387 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 05:33:21,387 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 05:33:21,387 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 05:33:21,387 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-21 05:33:21,388 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 05:33:21,409 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-01-21 05:33:21,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-21 05:33:21,416 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 05:33:21,417 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-21 05:33:21,417 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-21 05:33:21,423 INFO L82 PathProgramCache]: Analyzing trace with hash 109556, now seen corresponding path program 1 times [2018-01-21 05:33:21,426 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 05:33:21,470 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:33:21,471 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:33:21,471 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:33:21,471 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 05:33:21,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 05:33:21,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 05:33:21,523 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 05:33:21,528 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 05:33:21,534 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 05:33:21,534 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 05:33:21,534 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 05:33:21,534 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 05:33:21,534 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 05:33:21,535 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 05:33:21,535 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 05:33:21,535 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-21 05:33:21,535 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 05:33:21,536 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-01-21 05:33:21,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-01-21 05:33:21,537 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 05:33:21,538 INFO L322 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2018-01-21 05:33:21,538 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 05:33:21,538 INFO L82 PathProgramCache]: Analyzing trace with hash 661572557, now seen corresponding path program 1 times [2018-01-21 05:33:21,538 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 05:33:21,539 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:33:21,539 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:33:21,539 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:33:21,540 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 05:33:21,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 05:33:21,578 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 05:33:21,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 05:33:21,632 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 05:33:21,632 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 05:33:21,632 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 05:33:21,634 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-21 05:33:21,645 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-21 05:33:21,646 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 05:33:21,649 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2018-01-21 05:33:21,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 05:33:21,741 INFO L93 Difference]: Finished difference Result 72 states and 85 transitions. [2018-01-21 05:33:21,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-21 05:33:21,743 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 29 [2018-01-21 05:33:21,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 05:33:21,752 INFO L225 Difference]: With dead ends: 72 [2018-01-21 05:33:21,752 INFO L226 Difference]: Without dead ends: 41 [2018-01-21 05:33:21,754 INFO L525 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 [2018-01-21 05:33:21,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-01-21 05:33:21,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-01-21 05:33:21,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-01-21 05:33:21,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2018-01-21 05:33:21,787 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 29 [2018-01-21 05:33:21,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 05:33:21,787 INFO L432 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2018-01-21 05:33:21,788 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-21 05:33:21,788 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2018-01-21 05:33:21,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-01-21 05:33:21,789 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 05:33:21,789 INFO L322 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2018-01-21 05:33:21,789 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 05:33:21,790 INFO L82 PathProgramCache]: Analyzing trace with hash -853617319, now seen corresponding path program 1 times [2018-01-21 05:33:21,790 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 05:33:21,791 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:33:21,791 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:33:21,791 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:33:21,791 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 05:33:21,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 05:33:21,822 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 05:33:21,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 05:33:21,939 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 05:33:21,939 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-21 05:33:21,939 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 05:33:21,941 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-21 05:33:21,941 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-21 05:33:21,941 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-21 05:33:21,942 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 5 states. [2018-01-21 05:33:22,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 05:33:22,020 INFO L93 Difference]: Finished difference Result 66 states and 74 transitions. [2018-01-21 05:33:22,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-21 05:33:22,021 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2018-01-21 05:33:22,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 05:33:22,023 INFO L225 Difference]: With dead ends: 66 [2018-01-21 05:33:22,023 INFO L226 Difference]: Without dead ends: 53 [2018-01-21 05:33:22,024 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-01-21 05:33:22,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-01-21 05:33:22,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 43. [2018-01-21 05:33:22,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-01-21 05:33:22,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2018-01-21 05:33:22,031 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 30 [2018-01-21 05:33:22,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 05:33:22,031 INFO L432 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2018-01-21 05:33:22,032 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-21 05:33:22,032 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2018-01-21 05:33:22,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-01-21 05:33:22,033 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 05:33:22,033 INFO L322 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 05:33:22,033 INFO L371 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 05:33:22,034 INFO L82 PathProgramCache]: Analyzing trace with hash 167900261, now seen corresponding path program 1 times [2018-01-21 05:33:22,034 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 05:33:22,035 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:33:22,035 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:33:22,035 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:33:22,035 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 05:33:22,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 05:33:22,054 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 05:33:22,094 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 05:33:22,095 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 05:33:22,095 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-21 05:33:22,095 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 05:33:22,096 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-21 05:33:22,096 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-21 05:33:22,096 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 05:33:22,096 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand 3 states. [2018-01-21 05:33:22,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 05:33:22,128 INFO L93 Difference]: Finished difference Result 76 states and 87 transitions. [2018-01-21 05:33:22,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-21 05:33:22,129 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2018-01-21 05:33:22,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 05:33:22,134 INFO L225 Difference]: With dead ends: 76 [2018-01-21 05:33:22,134 INFO L226 Difference]: Without dead ends: 51 [2018-01-21 05:33:22,135 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 05:33:22,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-01-21 05:33:22,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 46. [2018-01-21 05:33:22,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-01-21 05:33:22,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2018-01-21 05:33:22,144 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 36 [2018-01-21 05:33:22,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 05:33:22,144 INFO L432 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2018-01-21 05:33:22,144 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-21 05:33:22,144 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2018-01-21 05:33:22,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-01-21 05:33:22,146 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 05:33:22,146 INFO L322 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 05:33:22,146 INFO L371 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 05:33:22,146 INFO L82 PathProgramCache]: Analyzing trace with hash 562606371, now seen corresponding path program 1 times [2018-01-21 05:33:22,146 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 05:33:22,147 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:33:22,148 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:33:22,148 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 05:33:22,148 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 05:33:22,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 05:33:22,171 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 05:33:22,272 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 05:33:22,273 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 05:33:22,273 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-21 05:33:22,274 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 40 with the following transitions: [2018-01-21 05:33:22,276 INFO L201 CegarAbsIntRunner]: [0], [1], [6], [7], [11], [15], [17], [21], [25], [41], [42], [43], [44], [48], [52], [54], [57], [65], [67], [68], [69], [70], [71], [72], [74], [75], [76], [77], [78], [79], [80], [81], [83], [84], [85], [86], [87], [88] [2018-01-21 05:33:22,322 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-21 05:33:22,322 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-01-21 05:34:30,048 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-01-21 05:34:30,048 WARN L157 AbstractInterpreter]: Abstract interpretation run out of time [2018-01-21 05:34:30,049 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-21 05:34:30,050 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 05:34:30,050 INFO L187 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 [2018-01-21 05:34:30,056 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 05:34:30,057 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-21 05:34:30,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 05:34:30,167 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-21 05:34:30,171 INFO L175 TraceCheckSpWp]: Timeout while computing interpolants [2018-01-21 05:34:30,171 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-21 05:34:30,173 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 05:34:30,173 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 05:34:30,173 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 05:34:30,174 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 05:34:30,174 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 05:34:30,174 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 05:34:30,174 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 05:34:30,174 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == diffErr0EnsuresViolation======== [2018-01-21 05:34:30,174 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 05:34:30,175 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-01-21 05:34:30,175 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-21 05:34:30,176 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 05:34:30,176 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 05:34:30,177 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 05:34:30,177 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 05:34:30,177 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 05:34:30,177 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 05:34:30,177 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 05:34:30,177 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-21 05:34:30,177 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 05:34:30,178 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-01-21 05:34:30,178 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-21 05:34:30,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.01 05:34:30 BoogieIcfgContainer [2018-01-21 05:34:30,179 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-21 05:34:30,179 INFO L168 Benchmark]: Toolchain (without parser) took 69368.71 ms. Allocated memory was 302.5 MB in the beginning and 1.8 GB in the end (delta: 1.5 GB). Free memory was 260.8 MB in the beginning and 946.2 MB in the end (delta: -685.4 MB). Peak memory consumption was 836.1 MB. Max. memory is 5.3 GB. [2018-01-21 05:34:30,180 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 302.5 MB. Free memory is still 266.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 05:34:30,180 INFO L168 Benchmark]: CACSL2BoogieTranslator took 216.27 ms. Allocated memory is still 302.5 MB. Free memory was 259.8 MB in the beginning and 249.7 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. [2018-01-21 05:34:30,181 INFO L168 Benchmark]: Boogie Preprocessor took 33.19 ms. Allocated memory is still 302.5 MB. Free memory was 249.7 MB in the beginning and 247.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-21 05:34:30,181 INFO L168 Benchmark]: RCFGBuilder took 259.40 ms. Allocated memory is still 302.5 MB. Free memory was 247.7 MB in the beginning and 230.1 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 5.3 GB. [2018-01-21 05:34:30,181 INFO L168 Benchmark]: TraceAbstraction took 68851.93 ms. Allocated memory was 302.5 MB in the beginning and 1.8 GB in the end (delta: 1.5 GB). Free memory was 230.1 MB in the beginning and 946.2 MB in the end (delta: -716.1 MB). Peak memory consumption was 805.4 MB. Max. memory is 5.3 GB. [2018-01-21 05:34:30,183 INFO L344 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 302.5 MB. Free memory is still 266.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 216.27 ms. Allocated memory is still 302.5 MB. Free memory was 259.8 MB in the beginning and 249.7 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 33.19 ms. Allocated memory is still 302.5 MB. Free memory was 249.7 MB in the beginning and 247.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 259.40 ms. Allocated memory is still 302.5 MB. Free memory was 247.7 MB in the beginning and 230.1 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 68851.93 ms. Allocated memory was 302.5 MB in the beginning and 1.8 GB in the end (delta: 1.5 GB). Free memory was 230.1 MB in the beginning and 946.2 MB in the end (delta: -716.1 MB). Peak memory consumption was 805.4 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.initErr0EnsuresViolation CFG has 4 procedures, 45 locations, 4 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 1). Cancelled while BasicCegarLoop was analyzing trace of length 40 with TraceHistMax 2, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 1 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0EnsuresViolation CFG has 4 procedures, 45 locations, 4 error locations. TIMEOUT Result, 68.6s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 133 SDtfs, 36 SDslu, 129 SDs, 0 SdLazy, 36 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 67.7s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 15 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 3988 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - TimeoutResultAtElement [Line: 540]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 540). Cancelled while IsEmpty was searching accepting run (input had 45 states). - StatisticsResult: Ultimate Automizer benchmark data for error location: diffErr0EnsuresViolation CFG has 4 procedures, 45 locations, 4 error locations. TIMEOUT Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, REUSE_STATISTICS: No data available - TimeoutResultAtElement [Line: 564]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 564). Cancelled while IsEmpty was searching accepting run (input had 45 states). - StatisticsResult: Ultimate Automizer benchmark data for error location: mainErr0EnsuresViolation CFG has 4 procedures, 45 locations, 4 error locations. TIMEOUT Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, REUSE_STATISTICS: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/diff-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-21_05-34-30-189.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/diff-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-21_05-34-30-189.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/diff-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-21_05-34-30-189.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/diff-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-21_05-34-30-189.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/diff-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-21_05-34-30-189.csv Completed graceful shutdown