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/svcomp-DerefFreeMemtrack-32bit-Automizer_RubberTaipan+AI_EQ.epf -i ../../../trunk/examples/svcomp/array-memsafety/stroeder1-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 12:56:38,511 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 12:56:38,541 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 12:56:38,553 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 12:56:38,553 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 12:56:38,554 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 12:56:38,556 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 12:56:38,557 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 12:56:38,560 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 12:56:38,560 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 12:56:38,561 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 12:56:38,561 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 12:56:38,561 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 12:56:38,562 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 12:56:38,563 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 12:56:38,565 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 12:56:38,568 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 12:56:38,570 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 12:56:38,571 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 12:56:38,572 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 12:56:38,575 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-24 12:56:38,580 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 12:56:38,580 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 12:56:38,581 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_RubberTaipan+AI_EQ.epf [2018-01-24 12:56:38,591 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 12:56:38,591 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 12:56:38,592 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 12:56:38,592 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 12:56:38,592 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 12:56:38,593 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 12:56:38,593 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 12:56:38,593 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 12:56:38,594 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 12:56:38,594 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 12:56:38,594 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 12:56:38,594 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 12:56:38,594 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 12:56:38,595 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 12:56:38,595 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 12:56:38,595 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 12:56:38,595 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 12:56:38,595 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 12:56:38,596 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 12:56:38,596 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 12:56:38,596 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 12:56:38,596 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 12:56:38,596 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 12:56:38,597 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 12:56:38,597 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 12:56:38,597 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 12:56:38,597 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 12:56:38,597 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 12:56:38,598 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-01-24 12:56:38,598 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 12:56:38,598 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 12:56:38,598 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 12:56:38,599 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 12:56:38,599 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 12:56:38,634 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 12:56:38,647 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 12:56:38,652 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 12:56:38,653 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 12:56:38,654 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 12:56:38,655 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/stroeder1-alloca_true-valid-memsafety_true-termination.i [2018-01-24 12:56:38,836 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 12:56:38,841 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 12:56:38,841 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 12:56:38,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 12:56:38,847 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 12:56:38,848 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 12:56:38" (1/1) ... [2018-01-24 12:56:38,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27f336ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:56:38, skipping insertion in model container [2018-01-24 12:56:38,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 12:56:38" (1/1) ... [2018-01-24 12:56:38,864 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 12:56:38,903 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 12:56:39,020 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 12:56:39,035 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 12:56:39,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:56:39 WrapperNode [2018-01-24 12:56:39,041 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 12:56:39,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 12:56:39,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 12:56:39,042 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 12:56:39,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:56:39" (1/1) ... [2018-01-24 12:56:39,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:56:39" (1/1) ... [2018-01-24 12:56:39,066 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:56:39" (1/1) ... [2018-01-24 12:56:39,066 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:56:39" (1/1) ... [2018-01-24 12:56:39,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:56:39" (1/1) ... [2018-01-24 12:56:39,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:56:39" (1/1) ... [2018-01-24 12:56:39,074 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:56:39" (1/1) ... [2018-01-24 12:56:39,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 12:56:39,075 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 12:56:39,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 12:56:39,076 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 12:56:39,076 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:56:39" (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 [2018-01-24 12:56:39,126 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 12:56:39,126 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 12:56:39,126 INFO L136 BoogieDeclarations]: Found implementation of procedure sumOfThirdBytes [2018-01-24 12:56:39,127 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 12:56:39,127 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 12:56:39,127 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 12:56:39,127 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 12:56:39,127 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 12:56:39,127 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 12:56:39,127 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 12:56:39,128 INFO L128 BoogieDeclarations]: Found specification of procedure sumOfThirdBytes [2018-01-24 12:56:39,128 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 12:56:39,128 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 12:56:39,128 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 12:56:39,292 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 12:56:39,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 12:56:39 BoogieIcfgContainer [2018-01-24 12:56:39,293 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 12:56:39,294 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 12:56:39,294 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 12:56:39,296 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 12:56:39,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 12:56:38" (1/3) ... [2018-01-24 12:56:39,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f1d7c1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 12:56:39, skipping insertion in model container [2018-01-24 12:56:39,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:56:39" (2/3) ... [2018-01-24 12:56:39,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f1d7c1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 12:56:39, skipping insertion in model container [2018-01-24 12:56:39,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 12:56:39" (3/3) ... [2018-01-24 12:56:39,301 INFO L105 eAbstractionObserver]: Analyzing ICFG stroeder1-alloca_true-valid-memsafety_true-termination.i [2018-01-24 12:56:39,310 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 12:56:39,317 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-01-24 12:56:39,371 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 12:56:39,371 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 12:56:39,371 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 12:56:39,371 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 12:56:39,372 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 12:56:39,372 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 12:56:39,372 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 12:56:39,372 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 12:56:39,373 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 12:56:39,395 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-01-24 12:56:39,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-01-24 12:56:39,402 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:56:39,403 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:56:39,403 INFO L371 AbstractCegarLoop]: === Iteration 1 === [sumOfThirdBytesErr1RequiresViolation, sumOfThirdBytesErr0RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-24 12:56:39,408 INFO L82 PathProgramCache]: Analyzing trace with hash -443509723, now seen corresponding path program 1 times [2018-01-24 12:56:39,410 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 12:56:39,451 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:56:39,452 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:56:39,452 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:56:39,452 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 12:56:39,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:56:39,518 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:56:39,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:56:39,672 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:56:39,673 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 12:56:39,673 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 12:56:39,675 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-24 12:56:39,685 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-24 12:56:39,685 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-24 12:56:39,687 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 7 states. [2018-01-24 12:56:39,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:56:39,910 INFO L93 Difference]: Finished difference Result 45 states and 48 transitions. [2018-01-24 12:56:39,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-24 12:56:39,985 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2018-01-24 12:56:39,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:56:39,997 INFO L225 Difference]: With dead ends: 45 [2018-01-24 12:56:39,997 INFO L226 Difference]: Without dead ends: 30 [2018-01-24 12:56:40,001 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-01-24 12:56:40,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-01-24 12:56:40,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 25. [2018-01-24 12:56:40,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-01-24 12:56:40,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2018-01-24 12:56:40,032 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 14 [2018-01-24 12:56:40,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:56:40,032 INFO L432 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2018-01-24 12:56:40,032 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-24 12:56:40,033 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2018-01-24 12:56:40,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-01-24 12:56:40,033 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:56:40,033 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:56:40,033 INFO L371 AbstractCegarLoop]: === Iteration 2 === [sumOfThirdBytesErr1RequiresViolation, sumOfThirdBytesErr0RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-24 12:56:40,033 INFO L82 PathProgramCache]: Analyzing trace with hash -443509722, now seen corresponding path program 1 times [2018-01-24 12:56:40,034 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 12:56:40,034 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:56:40,035 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:56:40,035 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:56:40,035 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 12:56:40,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:56:40,053 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:56:40,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:56:40,216 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:56:40,216 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 12:56:40,217 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 12:56:40,218 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-24 12:56:40,219 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-24 12:56:40,219 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-24 12:56:40,219 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 7 states. [2018-01-24 12:56:40,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:56:40,424 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2018-01-24 12:56:40,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-24 12:56:40,425 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2018-01-24 12:56:40,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:56:40,426 INFO L225 Difference]: With dead ends: 39 [2018-01-24 12:56:40,426 INFO L226 Difference]: Without dead ends: 38 [2018-01-24 12:56:40,427 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-01-24 12:56:40,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-01-24 12:56:40,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 28. [2018-01-24 12:56:40,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-01-24 12:56:40,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2018-01-24 12:56:40,434 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 14 [2018-01-24 12:56:40,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:56:40,435 INFO L432 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2018-01-24 12:56:40,435 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-24 12:56:40,435 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2018-01-24 12:56:40,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-24 12:56:40,436 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:56:40,436 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:56:40,436 INFO L371 AbstractCegarLoop]: === Iteration 3 === [sumOfThirdBytesErr1RequiresViolation, sumOfThirdBytesErr0RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-24 12:56:40,436 INFO L82 PathProgramCache]: Analyzing trace with hash -537553629, now seen corresponding path program 1 times [2018-01-24 12:56:40,436 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 12:56:40,437 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:56:40,438 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:56:40,438 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:56:40,438 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 12:56:40,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:56:40,458 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:56:40,691 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:56:40,691 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 12:56:40,691 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 [2018-01-24 12:56:40,700 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:56:40,700 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 12:56:40,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:56:40,723 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 12:56:40,808 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:56:40,808 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 12:56:40,866 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:56:40,901 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-01-24 12:56:40,901 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [10] total 15 [2018-01-24 12:56:40,901 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 12:56:40,901 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 12:56:40,902 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 12:56:40,902 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2018-01-24 12:56:40,902 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand 6 states. [2018-01-24 12:56:41,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:56:41,080 INFO L93 Difference]: Finished difference Result 64 states and 67 transitions. [2018-01-24 12:56:41,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 12:56:41,081 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-01-24 12:56:41,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:56:41,083 INFO L225 Difference]: With dead ends: 64 [2018-01-24 12:56:41,083 INFO L226 Difference]: Without dead ends: 50 [2018-01-24 12:56:41,083 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2018-01-24 12:56:41,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-01-24 12:56:41,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 42. [2018-01-24 12:56:41,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-01-24 12:56:41,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2018-01-24 12:56:41,094 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 19 [2018-01-24 12:56:41,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:56:41,095 INFO L432 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2018-01-24 12:56:41,095 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 12:56:41,095 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2018-01-24 12:56:41,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-24 12:56:41,096 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:56:41,097 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:56:41,097 INFO L371 AbstractCegarLoop]: === Iteration 4 === [sumOfThirdBytesErr1RequiresViolation, sumOfThirdBytesErr0RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-24 12:56:41,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1124359643, now seen corresponding path program 1 times [2018-01-24 12:56:41,097 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 12:56:41,098 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:56:41,098 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:56:41,098 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:56:41,098 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 12:56:41,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:56:41,116 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:56:41,246 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:56:41,247 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 12:56:41,247 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 12:56:41,253 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:56:41,253 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 12:56:41,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:56:41,270 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 12:56:41,292 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 [2018-01-24 12:56:41,294 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 12:56:41,299 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:56:41,299 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-01-24 12:56:41,572 WARN L143 SmtUtils]: Spent 219ms on a formula simplification that was a NOOP. DAG size: 17 [2018-01-24 12:56:41,651 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:56:41,652 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 12:56:41,918 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:56:41,939 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 12:56:41,939 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --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 4 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-01-24 12:56:41,949 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:56:41,949 INFO L280 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 12:56:41,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:56:41,984 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 12:56:41,990 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 [2018-01-24 12:56:41,990 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 12:56:42,012 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:56:42,013 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-01-24 12:56:42,054 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:56:42,054 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 12:56:42,126 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:56:42,128 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-01-24 12:56:42,128 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7, 7, 7] total 19 [2018-01-24 12:56:42,128 INFO L247 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-01-24 12:56:42,129 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-01-24 12:56:42,129 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-01-24 12:56:42,129 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2018-01-24 12:56:42,129 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand 14 states. [2018-01-24 12:56:42,811 WARN L146 SmtUtils]: Spent 310ms on a formula simplification. DAG size of input: 43 DAG size of output 41 [2018-01-24 12:56:42,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:56:42,891 INFO L93 Difference]: Finished difference Result 55 states and 59 transitions. [2018-01-24 12:56:42,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-24 12:56:42,892 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 19 [2018-01-24 12:56:42,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:56:42,895 INFO L225 Difference]: With dead ends: 55 [2018-01-24 12:56:42,895 INFO L226 Difference]: Without dead ends: 54 [2018-01-24 12:56:42,896 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 59 SyntacticMatches, 6 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=125, Invalid=475, Unknown=0, NotChecked=0, Total=600 [2018-01-24 12:56:42,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-01-24 12:56:42,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 38. [2018-01-24 12:56:42,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-01-24 12:56:42,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2018-01-24 12:56:42,905 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 19 [2018-01-24 12:56:42,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:56:42,906 INFO L432 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2018-01-24 12:56:42,906 INFO L433 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-01-24 12:56:42,906 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2018-01-24 12:56:42,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-24 12:56:42,907 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:56:42,907 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] [2018-01-24 12:56:42,907 INFO L371 AbstractCegarLoop]: === Iteration 5 === [sumOfThirdBytesErr1RequiresViolation, sumOfThirdBytesErr0RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-24 12:56:42,908 INFO L82 PathProgramCache]: Analyzing trace with hash 950757514, now seen corresponding path program 1 times [2018-01-24 12:56:42,908 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 12:56:42,909 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:56:42,909 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:56:42,909 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:56:42,909 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 12:56:42,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:56:42,920 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:56:42,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:56:42,968 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:56:42,968 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 12:56:42,968 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 12:56:42,969 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 12:56:42,969 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 12:56:42,969 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 12:56:42,969 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand 5 states. [2018-01-24 12:56:42,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:56:42,994 INFO L93 Difference]: Finished difference Result 54 states and 56 transitions. [2018-01-24 12:56:42,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 12:56:42,996 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-01-24 12:56:42,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:56:42,997 INFO L225 Difference]: With dead ends: 54 [2018-01-24 12:56:42,997 INFO L226 Difference]: Without dead ends: 43 [2018-01-24 12:56:42,998 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 [2018-01-24 12:56:42,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-01-24 12:56:43,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 40. [2018-01-24 12:56:43,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-01-24 12:56:43,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2018-01-24 12:56:43,006 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 20 [2018-01-24 12:56:43,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:56:43,007 INFO L432 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2018-01-24 12:56:43,007 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 12:56:43,007 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2018-01-24 12:56:43,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-01-24 12:56:43,008 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:56:43,008 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] [2018-01-24 12:56:43,008 INFO L371 AbstractCegarLoop]: === Iteration 6 === [sumOfThirdBytesErr1RequiresViolation, sumOfThirdBytesErr0RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-24 12:56:43,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1524168647, now seen corresponding path program 1 times [2018-01-24 12:56:43,009 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 12:56:43,009 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:56:43,009 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:56:43,009 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:56:43,009 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 12:56:43,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:56:43,026 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:56:43,089 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-01-24 12:56:43,089 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:56:43,089 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 12:56:43,089 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 12:56:43,090 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 12:56:43,090 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 12:56:43,090 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 12:56:43,090 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 4 states. [2018-01-24 12:56:43,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:56:43,149 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2018-01-24 12:56:43,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 12:56:43,150 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-01-24 12:56:43,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:56:43,151 INFO L225 Difference]: With dead ends: 40 [2018-01-24 12:56:43,151 INFO L226 Difference]: Without dead ends: 0 [2018-01-24 12:56:43,151 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-24 12:56:43,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-24 12:56:43,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-24 12:56:43,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-24 12:56:43,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-24 12:56:43,152 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-01-24 12:56:43,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:56:43,153 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-24 12:56:43,153 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 12:56:43,153 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-24 12:56:43,153 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-24 12:56:43,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-01-24 12:56:43,826 WARN L146 SmtUtils]: Spent 546ms on a formula simplification. DAG size of input: 74 DAG size of output 52 [2018-01-24 12:56:43,842 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(lines 1 559) no Hoare annotation was computed. [2018-01-24 12:56:43,843 INFO L397 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(lines 1 559) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-24 12:56:43,843 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(lines 1 559) no Hoare annotation was computed. [2018-01-24 12:56:43,843 INFO L401 ceAbstractionStarter]: For program point sumOfThirdBytesErr1RequiresViolation(lines 1 559) no Hoare annotation was computed. [2018-01-24 12:56:43,843 INFO L397 ceAbstractionStarter]: At program point L545'''(lines 545 549) the Hoare annotation is: (let ((.cse0 (not (= (select |#valid| |sumOfThirdBytes_#in~numbers.base|) 1))) (.cse3 (not (exists ((v_main_~array_size~4_BEFORE_CALL_2 Int)) (and (<= |sumOfThirdBytes_#in~array_size| v_main_~array_size~4_BEFORE_CALL_2) (= (select |#length| |sumOfThirdBytes_#in~numbers.base|) (* 4 v_main_~array_size~4_BEFORE_CALL_2)))))) (.cse4 (not (= 0 |sumOfThirdBytes_#in~numbers.offset|))) (.cse2 (<= 1 sumOfThirdBytes_~i~2))) (and (let ((.cse1 (<= sumOfThirdBytes_~array_size 1))) (or .cse0 (and .cse1 .cse2) .cse3 (and .cse1 (<= |sumOfThirdBytes_#in~array_size| sumOfThirdBytes_~array_size)) (< 1 |sumOfThirdBytes_#in~array_size|) .cse4)) (or .cse0 .cse3 .cse4 (let ((.cse5 (exists ((v_main_~array_size~4_BEFORE_CALL_2 Int)) (and (= (select |#length| |sumOfThirdBytes_~#numbers.base|) (* 4 v_main_~array_size~4_BEFORE_CALL_2)) (<= sumOfThirdBytes_~array_size v_main_~array_size~4_BEFORE_CALL_2)))) (.cse6 (= 1 (select |#valid| |sumOfThirdBytes_~#numbers.base|))) (.cse7 (= |sumOfThirdBytes_~#numbers.offset| 0))) (or (and .cse5 (= sumOfThirdBytes_~i~2 0) .cse6 .cse7) (and .cse2 .cse5 (<= sumOfThirdBytes_~p~2.offset (+ |sumOfThirdBytes_~#numbers.offset| (* 4 sumOfThirdBytes_~i~2) 2)) .cse6 .cse7)))))) [2018-01-24 12:56:43,843 INFO L401 ceAbstractionStarter]: For program point L545(lines 545 549) no Hoare annotation was computed. [2018-01-24 12:56:43,843 INFO L401 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2018-01-24 12:56:43,843 INFO L401 ceAbstractionStarter]: For program point sumOfThirdBytesFINAL(lines 540 551) no Hoare annotation was computed. [2018-01-24 12:56:43,844 INFO L401 ceAbstractionStarter]: For program point sumOfThirdBytesErr0RequiresViolation(lines 1 559) no Hoare annotation was computed. [2018-01-24 12:56:43,844 INFO L401 ceAbstractionStarter]: For program point L545''''(lines 545 549) no Hoare annotation was computed. [2018-01-24 12:56:43,844 INFO L401 ceAbstractionStarter]: For program point sumOfThirdBytesEXIT(lines 540 551) no Hoare annotation was computed. [2018-01-24 12:56:43,844 INFO L404 ceAbstractionStarter]: At program point sumOfThirdBytesENTRY(lines 540 551) the Hoare annotation is: true [2018-01-24 12:56:43,844 INFO L401 ceAbstractionStarter]: For program point L545''(lines 545 549) no Hoare annotation was computed. [2018-01-24 12:56:43,844 INFO L401 ceAbstractionStarter]: For program point L548'(line 548) no Hoare annotation was computed. [2018-01-24 12:56:43,844 INFO L404 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 559) the Hoare annotation is: true [2018-01-24 12:56:43,844 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 559) no Hoare annotation was computed. [2018-01-24 12:56:43,844 INFO L404 ceAbstractionStarter]: At program point L1(lines 1 559) the Hoare annotation is: true [2018-01-24 12:56:43,844 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 559) no Hoare annotation was computed. [2018-01-24 12:56:43,844 INFO L401 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2018-01-24 12:56:43,844 INFO L401 ceAbstractionStarter]: For program point mainFINAL(lines 552 559) no Hoare annotation was computed. [2018-01-24 12:56:43,844 INFO L401 ceAbstractionStarter]: For program point L554(lines 554 556) no Hoare annotation was computed. [2018-01-24 12:56:43,845 INFO L397 ceAbstractionStarter]: At program point L558(line 558) the Hoare annotation is: (let ((.cse0 (* 4 main_~array_size~4))) (and (<= 1 main_~array_size~4) (= 1 (select |#valid| |main_#t~malloc3.base|)) (= .cse0 (select |#length| |main_#t~malloc3.base|)) (= |old(#valid)| (store |#valid| |main_#t~malloc3.base| 0)) (= 1 (select |#valid| main_~numbers~4.base)) (= 0 |main_#t~malloc3.offset|) (= 0 main_~numbers~4.offset) (= .cse0 (select |#length| main_~numbers~4.base)))) [2018-01-24 12:56:43,845 INFO L401 ceAbstractionStarter]: For program point mainEXIT(lines 552 559) no Hoare annotation was computed. [2018-01-24 12:56:43,845 INFO L397 ceAbstractionStarter]: At program point mainENTRY(lines 552 559) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-24 12:56:43,845 INFO L401 ceAbstractionStarter]: For program point L557'(line 557) no Hoare annotation was computed. [2018-01-24 12:56:43,845 INFO L401 ceAbstractionStarter]: For program point L554''(lines 554 556) no Hoare annotation was computed. [2018-01-24 12:56:43,845 INFO L401 ceAbstractionStarter]: For program point L558'(line 558) no Hoare annotation was computed. [2018-01-24 12:56:43,845 INFO L401 ceAbstractionStarter]: For program point L557''(line 557) no Hoare annotation was computed. [2018-01-24 12:56:43,845 INFO L401 ceAbstractionStarter]: For program point mainErr0EnsuresViolation(lines 552 559) no Hoare annotation was computed. [2018-01-24 12:56:43,850 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] [2018-01-24 12:56:43,852 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] [2018-01-24 12:56:43,852 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] [2018-01-24 12:56:43,852 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] [2018-01-24 12:56:43,853 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] [2018-01-24 12:56:43,853 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] [2018-01-24 12:56:43,853 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] [2018-01-24 12:56:43,854 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] [2018-01-24 12:56:43,856 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 12:56:43,856 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 12:56:43,857 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 12:56:43,857 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 12:56:43,862 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] [2018-01-24 12:56:43,862 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] [2018-01-24 12:56:43,863 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] [2018-01-24 12:56:43,863 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] [2018-01-24 12:56:43,863 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] [2018-01-24 12:56:43,863 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] [2018-01-24 12:56:43,864 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] [2018-01-24 12:56:43,864 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] [2018-01-24 12:56:43,864 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 12:56:43,865 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 12:56:43,865 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 12:56:43,865 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 12:56:43,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.01 12:56:43 BoogieIcfgContainer [2018-01-24 12:56:43,869 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-24 12:56:43,870 INFO L168 Benchmark]: Toolchain (without parser) took 5033.37 ms. Allocated memory was 306.7 MB in the beginning and 500.2 MB in the end (delta: 193.5 MB). Free memory was 266.7 MB in the beginning and 434.8 MB in the end (delta: -168.1 MB). Peak memory consumption was 133.4 MB. Max. memory is 5.3 GB. [2018-01-24 12:56:43,871 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 306.7 MB. Free memory is still 272.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 12:56:43,872 INFO L168 Benchmark]: CACSL2BoogieTranslator took 200.24 ms. Allocated memory is still 306.7 MB. Free memory was 265.7 MB in the beginning and 255.5 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 5.3 GB. [2018-01-24 12:56:43,872 INFO L168 Benchmark]: Boogie Preprocessor took 33.34 ms. Allocated memory is still 306.7 MB. Free memory was 255.5 MB in the beginning and 254.5 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. [2018-01-24 12:56:43,873 INFO L168 Benchmark]: RCFGBuilder took 217.85 ms. Allocated memory is still 306.7 MB. Free memory was 254.5 MB in the beginning and 240.7 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 5.3 GB. [2018-01-24 12:56:43,873 INFO L168 Benchmark]: TraceAbstraction took 4574.56 ms. Allocated memory was 306.7 MB in the beginning and 500.2 MB in the end (delta: 193.5 MB). Free memory was 239.7 MB in the beginning and 434.8 MB in the end (delta: -195.1 MB). Peak memory consumption was 106.4 MB. Max. memory is 5.3 GB. [2018-01-24 12:56:43,875 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 306.7 MB. Free memory is still 272.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 200.24 ms. Allocated memory is still 306.7 MB. Free memory was 265.7 MB in the beginning and 255.5 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 33.34 ms. Allocated memory is still 306.7 MB. Free memory was 255.5 MB in the beginning and 254.5 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. * RCFGBuilder took 217.85 ms. Allocated memory is still 306.7 MB. Free memory was 254.5 MB in the beginning and 240.7 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 5.3 GB. * TraceAbstraction took 4574.56 ms. Allocated memory was 306.7 MB in the beginning and 500.2 MB in the end (delta: 193.5 MB). Free memory was 239.7 MB in the beginning and 434.8 MB in the end (delta: -195.1 MB). Peak memory consumption was 106.4 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 552]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 545]: Loop Invariant [2018-01-24 12:56:43,882 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] [2018-01-24 12:56:43,882 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] [2018-01-24 12:56:43,883 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] [2018-01-24 12:56:43,883 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] [2018-01-24 12:56:43,883 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] [2018-01-24 12:56:43,883 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] [2018-01-24 12:56:43,884 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] [2018-01-24 12:56:43,884 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] [2018-01-24 12:56:43,884 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 12:56:43,884 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 12:56:43,884 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 12:56:43,885 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 12:56:43,888 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] [2018-01-24 12:56:43,889 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] [2018-01-24 12:56:43,889 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] [2018-01-24 12:56:43,889 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] [2018-01-24 12:56:43,889 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] [2018-01-24 12:56:43,890 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] [2018-01-24 12:56:43,890 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] [2018-01-24 12:56:43,890 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~array_size~4_BEFORE_CALL_2,QUANTIFIED] [2018-01-24 12:56:43,890 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 12:56:43,890 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 12:56:43,890 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-24 12:56:43,891 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length Derived loop invariant: (((((!(\valid[numbers] == 1) || (array_size <= 1 && 1 <= i)) || !(\exists v_main_~array_size~4_BEFORE_CALL_2 : int :: \old(array_size) <= v_main_~array_size~4_BEFORE_CALL_2 && unknown-#length-unknown[numbers] == 4 * v_main_~array_size~4_BEFORE_CALL_2)) || (array_size <= 1 && \old(array_size) <= array_size)) || 1 < \old(array_size)) || !(0 == numbers)) && (((!(\valid[numbers] == 1) || !(\exists v_main_~array_size~4_BEFORE_CALL_2 : int :: \old(array_size) <= v_main_~array_size~4_BEFORE_CALL_2 && unknown-#length-unknown[numbers] == 4 * v_main_~array_size~4_BEFORE_CALL_2)) || !(0 == numbers)) || ((((\exists v_main_~array_size~4_BEFORE_CALL_2 : int :: unknown-#length-unknown[numbers] == 4 * v_main_~array_size~4_BEFORE_CALL_2 && array_size <= v_main_~array_size~4_BEFORE_CALL_2) && i == 0) && 1 == \valid[numbers]) && numbers == 0) || ((((1 <= i && (\exists v_main_~array_size~4_BEFORE_CALL_2 : int :: unknown-#length-unknown[numbers] == 4 * v_main_~array_size~4_BEFORE_CALL_2 && array_size <= v_main_~array_size~4_BEFORE_CALL_2)) && p <= numbers + 4 * i + 2) && 1 == \valid[numbers]) && numbers == 0)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 29 locations, 3 error locations. SAFE Result, 4.4s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.6s HoareAnnotationTime, HoareTripleCheckerStatistics: 135 SDtfs, 159 SDslu, 389 SDs, 0 SdLazy, 290 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 167 GetRequests, 97 SyntacticMatches, 8 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=3, 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: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 42 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 13 NumberOfFragments, 173 HoareAnnotationTreeSize, 9 FomulaSimplifications, 445 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 635 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 168 NumberOfCodeBlocks, 168 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 213 ConstructedInterpolants, 34 QuantifiedInterpolants, 31647 SizeOfPredicates, 25 NumberOfNonLiveVariables, 250 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 15/26 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/stroeder1-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_RubberTaipan+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_12-56-43-895.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/stroeder1-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_RubberTaipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-24_12-56-43-895.csv Received shutdown request...