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.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test9_1_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-20 23:58:47,670 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-20 23:58:47,672 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-20 23:58:47,687 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-20 23:58:47,688 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-20 23:58:47,689 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-20 23:58:47,690 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-20 23:58:47,691 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-20 23:58:47,694 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-20 23:58:47,695 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-20 23:58:47,696 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-20 23:58:47,696 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-20 23:58:47,697 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-20 23:58:47,698 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-20 23:58:47,699 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-20 23:58:47,702 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-20 23:58:47,704 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-20 23:58:47,706 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-20 23:58:47,708 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-20 23:58:47,709 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-20 23:58:47,711 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-20 23:58:47,712 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-20 23:58:47,712 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-20 23:58:47,713 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-20 23:58:47,714 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-20 23:58:47,715 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-20 23:58:47,715 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-20 23:58:47,716 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-20 23:58:47,716 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-20 23:58:47,716 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-20 23:58:47,717 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-20 23:58:47,717 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.epf [2018-01-20 23:58:47,727 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-20 23:58:47,728 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-20 23:58:47,729 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-20 23:58:47,729 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-20 23:58:47,729 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-20 23:58:47,729 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-20 23:58:47,730 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-20 23:58:47,730 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-20 23:58:47,731 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-20 23:58:47,731 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-20 23:58:47,731 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-20 23:58:47,731 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-20 23:58:47,732 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-20 23:58:47,732 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-20 23:58:47,732 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-20 23:58:47,732 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-20 23:58:47,732 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-20 23:58:47,733 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-20 23:58:47,733 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-20 23:58:47,733 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-20 23:58:47,733 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-20 23:58:47,733 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-20 23:58:47,734 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-20 23:58:47,734 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-20 23:58:47,734 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-20 23:58:47,734 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-20 23:58:47,734 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-20 23:58:47,735 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-20 23:58:47,735 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-20 23:58:47,735 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-20 23:58:47,735 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-20 23:58:47,735 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-20 23:58:47,736 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-20 23:58:47,736 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-20 23:58:47,736 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-20 23:58:47,736 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-20 23:58:47,737 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-20 23:58:47,737 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-20 23:58:47,773 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-20 23:58:47,783 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-20 23:58:47,786 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-20 23:58:47,787 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-20 23:58:47,787 INFO L276 PluginConnector]: CDTParser initialized [2018-01-20 23:58:47,788 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test9_1_false-valid-memtrack_true-termination.i [2018-01-20 23:58:48,000 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-20 23:58:48,005 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-20 23:58:48,006 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-20 23:58:48,006 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-20 23:58:48,011 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-20 23:58:48,012 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 11:58:47" (1/1) ... [2018-01-20 23:58:48,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8a855a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:58:48, skipping insertion in model container [2018-01-20 23:58:48,015 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 11:58:47" (1/1) ... [2018-01-20 23:58:48,029 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-20 23:58:48,075 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-20 23:58:48,191 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-20 23:58:48,203 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-20 23:58:48,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:58:48 WrapperNode [2018-01-20 23:58:48,211 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-20 23:58:48,212 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-20 23:58:48,212 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-20 23:58:48,212 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-20 23:58:48,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:58:48" (1/1) ... [2018-01-20 23:58:48,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:58:48" (1/1) ... [2018-01-20 23:58:48,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:58:48" (1/1) ... [2018-01-20 23:58:48,242 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:58:48" (1/1) ... [2018-01-20 23:58:48,244 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:58:48" (1/1) ... [2018-01-20 23:58:48,246 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:58:48" (1/1) ... [2018-01-20 23:58:48,246 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:58:48" (1/1) ... [2018-01-20 23:58:48,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-20 23:58:48,248 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-20 23:58:48,248 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-20 23:58:48,248 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-20 23:58:48,250 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:58:48" (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 [2018-01-20 23:58:48,302 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-20 23:58:48,302 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-20 23:58:48,302 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-20 23:58:48,302 INFO L136 BoogieDeclarations]: Found implementation of procedure probe_9_2 [2018-01-20 23:58:48,303 INFO L136 BoogieDeclarations]: Found implementation of procedure disconnect_9 [2018-01-20 23:58:48,303 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-20 23:58:48,303 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-20 23:58:48,303 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-20 23:58:48,303 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-20 23:58:48,303 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-20 23:58:48,303 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-20 23:58:48,303 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-20 23:58:48,303 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-20 23:58:48,304 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-20 23:58:48,304 INFO L128 BoogieDeclarations]: Found specification of procedure probe_9_2 [2018-01-20 23:58:48,304 INFO L128 BoogieDeclarations]: Found specification of procedure disconnect_9 [2018-01-20 23:58:48,304 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-20 23:58:48,304 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-20 23:58:48,304 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-20 23:58:48,304 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-20 23:58:48,448 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-20 23:58:48,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 11:58:48 BoogieIcfgContainer [2018-01-20 23:58:48,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-20 23:58:48,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-20 23:58:48,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-20 23:58:48,451 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-20 23:58:48,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 11:58:47" (1/3) ... [2018-01-20 23:58:48,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@131f1aaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 11:58:48, skipping insertion in model container [2018-01-20 23:58:48,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:58:48" (2/3) ... [2018-01-20 23:58:48,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@131f1aaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 11:58:48, skipping insertion in model container [2018-01-20 23:58:48,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 11:58:48" (3/3) ... [2018-01-20 23:58:48,454 INFO L105 eAbstractionObserver]: Analyzing ICFG memleaks_test9_1_false-valid-memtrack_true-termination.i [2018-01-20 23:58:48,461 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-20 23:58:48,466 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-01-20 23:58:48,516 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 23:58:48,516 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 23:58:48,516 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 23:58:48,516 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 23:58:48,516 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 23:58:48,517 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 23:58:48,517 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 23:58:48,517 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ldv_mallocErr0EnsuresViolation======== [2018-01-20 23:58:48,518 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 23:58:48,538 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-01-20 23:58:48,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-01-20 23:58:48,545 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 23:58:48,546 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 23:58:48,547 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ldv_mallocErr0EnsuresViolation]=== [2018-01-20 23:58:48,552 INFO L82 PathProgramCache]: Analyzing trace with hash -626861590, now seen corresponding path program 1 times [2018-01-20 23:58:48,554 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-20 23:58:48,621 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:58:48,621 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:58:48,621 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:58:48,622 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-20 23:58:48,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 23:58:48,683 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 23:58:48,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 23:58:48,745 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 23:58:48,746 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-20 23:58:48,746 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-20 23:58:48,748 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-20 23:58:48,763 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-20 23:58:48,764 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-20 23:58:48,766 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 3 states. [2018-01-20 23:58:48,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 23:58:48,905 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2018-01-20 23:58:48,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-20 23:58:48,968 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-01-20 23:58:48,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 23:58:48,978 INFO L225 Difference]: With dead ends: 39 [2018-01-20 23:58:48,979 INFO L226 Difference]: Without dead ends: 14 [2018-01-20 23:58:48,981 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-20 23:58:48,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-01-20 23:58:49,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-01-20 23:58:49,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-01-20 23:58:49,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2018-01-20 23:58:49,010 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 11 [2018-01-20 23:58:49,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 23:58:49,010 INFO L432 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2018-01-20 23:58:49,010 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-20 23:58:49,010 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2018-01-20 23:58:49,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-20 23:58:49,011 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 23:58:49,011 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 23:58:49,011 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ldv_mallocErr0EnsuresViolation]=== [2018-01-20 23:58:49,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1118659508, now seen corresponding path program 1 times [2018-01-20 23:58:49,012 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-20 23:58:49,014 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:58:49,014 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:58:49,014 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:58:49,014 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-20 23:58:49,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 23:58:49,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 23:58:49,091 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-20 23:58:49,103 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 23:58:49,105 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 23:58:49,116 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 23:58:49,116 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 23:58:49,116 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 23:58:49,117 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 23:58:49,117 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 23:58:49,117 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 23:58:49,117 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 23:58:49,117 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-20 23:58:49,117 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 23:58:49,118 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-01-20 23:58:49,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-20 23:58:49,118 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 23:58:49,119 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-20 23:58:49,119 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-20 23:58:49,119 INFO L82 PathProgramCache]: Analyzing trace with hash 68617, now seen corresponding path program 1 times [2018-01-20 23:58:49,119 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-20 23:58:49,120 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:58:49,120 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:58:49,120 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:58:49,121 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-20 23:58:49,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 23:58:49,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 23:58:49,129 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-20 23:58:49,131 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 23:58:49,133 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 23:58:49,134 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 23:58:49,134 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 23:58:49,134 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 23:58:49,134 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 23:58:49,134 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 23:58:49,134 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 23:58:49,134 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-20 23:58:49,135 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 23:58:49,136 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-01-20 23:58:49,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-20 23:58:49,138 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 23:58:49,138 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] [2018-01-20 23:58:49,138 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-20 23:58:49,138 INFO L82 PathProgramCache]: Analyzing trace with hash -2069234830, now seen corresponding path program 1 times [2018-01-20 23:58:49,139 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-20 23:58:49,140 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:58:49,140 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:58:49,140 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:58:49,141 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-20 23:58:49,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 23:58:49,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 23:58:49,181 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-20 23:58:49,185 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 23:58:49,187 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 23:58:49,187 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 23:58:49,188 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 23:58:49,188 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 23:58:49,189 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 23:58:49,192 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 23:58:49,192 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 23:58:49,192 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 23:58:49,192 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 23:58:49,192 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 23:58:49,193 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 23:58:49,193 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 23:58:49,193 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-20 23:58:49,193 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 23:58:49,194 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-01-20 23:58:49,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-01-20 23:58:49,195 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 23:58:49,195 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] [2018-01-20 23:58:49,195 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-01-20 23:58:49,195 INFO L82 PathProgramCache]: Analyzing trace with hash -998800148, now seen corresponding path program 1 times [2018-01-20 23:58:49,195 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-20 23:58:49,196 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:58:49,196 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:58:49,196 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:58:49,197 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-20 23:58:49,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 23:58:49,213 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 23:58:49,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 23:58:49,264 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 23:58:49,264 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-20 23:58:49,264 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-20 23:58:49,265 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-20 23:58:49,265 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-20 23:58:49,265 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-20 23:58:49,266 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 3 states. [2018-01-20 23:58:49,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 23:58:49,352 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2018-01-20 23:58:49,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-20 23:58:49,353 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2018-01-20 23:58:49,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 23:58:49,353 INFO L225 Difference]: With dead ends: 39 [2018-01-20 23:58:49,353 INFO L226 Difference]: Without dead ends: 0 [2018-01-20 23:58:49,354 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-20 23:58:49,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-20 23:58:49,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-20 23:58:49,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-20 23:58:49,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-20 23:58:49,355 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-01-20 23:58:49,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 23:58:49,355 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-20 23:58:49,355 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-20 23:58:49,356 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-20 23:58:49,356 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-20 23:58:49,358 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 23:58:49,358 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 23:58:49,358 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 23:58:49,359 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 23:58:49,359 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 23:58:49,359 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 23:58:49,359 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 23:58:49,359 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == probe_9_2Err0EnsuresViolation======== [2018-01-20 23:58:49,359 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 23:58:49,360 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-01-20 23:58:49,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-01-20 23:58:49,360 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 23:58:49,361 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 23:58:49,361 INFO L371 AbstractCegarLoop]: === Iteration 1 === [probe_9_2Err0EnsuresViolation]=== [2018-01-20 23:58:49,361 INFO L82 PathProgramCache]: Analyzing trace with hash -315810586, now seen corresponding path program 1 times [2018-01-20 23:58:49,361 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-20 23:58:49,362 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:58:49,362 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:58:49,362 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:58:49,362 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-20 23:58:49,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 23:58:49,371 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 23:58:49,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 23:58:49,396 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 23:58:49,396 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-20 23:58:49,396 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-20 23:58:49,396 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-20 23:58:49,396 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-20 23:58:49,397 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-20 23:58:49,397 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 3 states. [2018-01-20 23:58:49,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 23:58:49,441 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2018-01-20 23:58:49,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-20 23:58:49,441 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-01-20 23:58:49,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 23:58:49,442 INFO L225 Difference]: With dead ends: 39 [2018-01-20 23:58:49,442 INFO L226 Difference]: Without dead ends: 0 [2018-01-20 23:58:49,442 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-20 23:58:49,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-20 23:58:49,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-20 23:58:49,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-20 23:58:49,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-20 23:58:49,443 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-01-20 23:58:49,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 23:58:49,444 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-20 23:58:49,444 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-20 23:58:49,444 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-20 23:58:49,444 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-20 23:58:49,446 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 23:58:49,446 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 23:58:49,446 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 23:58:49,446 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 23:58:49,446 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 23:58:49,446 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 23:58:49,446 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 23:58:49,447 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == entry_pointErr0EnsuresViolation======== [2018-01-20 23:58:49,447 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 23:58:49,448 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-01-20 23:58:49,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-20 23:58:49,449 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 23:58:49,449 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 23:58:49,449 INFO L371 AbstractCegarLoop]: === Iteration 1 === [entry_pointErr0EnsuresViolation]=== [2018-01-20 23:58:49,449 INFO L82 PathProgramCache]: Analyzing trace with hash -1744054158, now seen corresponding path program 1 times [2018-01-20 23:58:49,450 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-20 23:58:49,451 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:58:49,451 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:58:49,451 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:58:49,452 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-20 23:58:49,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 23:58:49,463 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 23:58:49,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 23:58:49,503 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 23:58:49,504 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-20 23:58:49,504 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-20 23:58:49,504 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-20 23:58:49,504 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-20 23:58:49,504 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-20 23:58:49,505 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 3 states. [2018-01-20 23:58:49,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 23:58:49,584 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2018-01-20 23:58:49,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-20 23:58:49,585 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-01-20 23:58:49,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 23:58:49,586 INFO L225 Difference]: With dead ends: 39 [2018-01-20 23:58:49,586 INFO L226 Difference]: Without dead ends: 0 [2018-01-20 23:58:49,586 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-20 23:58:49,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-20 23:58:49,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-20 23:58:49,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-20 23:58:49,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-20 23:58:49,587 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2018-01-20 23:58:49,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 23:58:49,588 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-20 23:58:49,588 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-20 23:58:49,588 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-20 23:58:49,588 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-20 23:58:49,589 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 23:58:49,590 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 23:58:49,590 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 23:58:49,590 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 23:58:49,590 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 23:58:49,590 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 23:58:49,590 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 23:58:49,590 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == disconnect_9Err0EnsuresViolation======== [2018-01-20 23:58:49,590 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 23:58:49,592 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-01-20 23:58:49,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-20 23:58:49,593 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 23:58:49,593 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] [2018-01-20 23:58:49,593 INFO L371 AbstractCegarLoop]: === Iteration 1 === [disconnect_9Err0EnsuresViolation]=== [2018-01-20 23:58:49,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1768822021, now seen corresponding path program 1 times [2018-01-20 23:58:49,593 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-20 23:58:49,595 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:58:49,595 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:58:49,595 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:58:49,595 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-20 23:58:49,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 23:58:49,607 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 23:58:49,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 23:58:49,695 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 23:58:49,695 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-20 23:58:49,695 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-20 23:58:49,695 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-20 23:58:49,696 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-20 23:58:49,696 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-20 23:58:49,696 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 7 states. [2018-01-20 23:58:49,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 23:58:49,846 INFO L93 Difference]: Finished difference Result 51 states and 54 transitions. [2018-01-20 23:58:49,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-20 23:58:49,847 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-01-20 23:58:49,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 23:58:49,848 INFO L225 Difference]: With dead ends: 51 [2018-01-20 23:58:49,848 INFO L226 Difference]: Without dead ends: 23 [2018-01-20 23:58:49,848 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-01-20 23:58:49,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-01-20 23:58:49,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-01-20 23:58:49,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-01-20 23:58:49,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2018-01-20 23:58:49,854 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 20 [2018-01-20 23:58:49,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 23:58:49,854 INFO L432 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2018-01-20 23:58:49,854 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-20 23:58:49,854 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2018-01-20 23:58:49,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-20 23:58:49,855 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 23:58:49,855 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] [2018-01-20 23:58:49,856 INFO L371 AbstractCegarLoop]: === Iteration 2 === [disconnect_9Err0EnsuresViolation]=== [2018-01-20 23:58:49,856 INFO L82 PathProgramCache]: Analyzing trace with hash 1198907619, now seen corresponding path program 1 times [2018-01-20 23:58:49,856 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-20 23:58:49,857 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:58:49,858 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:58:49,858 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:58:49,858 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-20 23:58:49,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 23:58:49,870 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 23:58:49,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 23:58:49,925 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 23:58:49,925 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-20 23:58:49,925 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-20 23:58:49,925 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-20 23:58:49,925 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-20 23:58:49,925 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-20 23:58:49,926 INFO L87 Difference]: Start difference. First operand 23 states and 22 transitions. Second operand 4 states. [2018-01-20 23:58:49,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 23:58:49,963 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2018-01-20 23:58:49,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-20 23:58:49,964 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2018-01-20 23:58:49,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 23:58:49,964 INFO L225 Difference]: With dead ends: 23 [2018-01-20 23:58:49,964 INFO L226 Difference]: Without dead ends: 0 [2018-01-20 23:58:49,965 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-20 23:58:49,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-20 23:58:49,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-20 23:58:49,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-20 23:58:49,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-20 23:58:49,966 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2018-01-20 23:58:49,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 23:58:49,966 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-20 23:58:49,967 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-20 23:58:49,967 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-20 23:58:49,967 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-20 23:58:49,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 11:58:49 BoogieIcfgContainer [2018-01-20 23:58:49,969 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-20 23:58:49,970 INFO L168 Benchmark]: Toolchain (without parser) took 1969.09 ms. Allocated memory was 303.0 MB in the beginning and 456.7 MB in the end (delta: 153.6 MB). Free memory was 260.3 MB in the beginning and 338.5 MB in the end (delta: -78.2 MB). Peak memory consumption was 75.4 MB. Max. memory is 5.3 GB. [2018-01-20 23:58:49,971 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 303.0 MB. Free memory is still 267.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-20 23:58:49,971 INFO L168 Benchmark]: CACSL2BoogieTranslator took 206.13 ms. Allocated memory is still 303.0 MB. Free memory was 260.3 MB in the beginning and 247.2 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. [2018-01-20 23:58:49,972 INFO L168 Benchmark]: Boogie Preprocessor took 35.74 ms. Allocated memory is still 303.0 MB. Free memory was 247.2 MB in the beginning and 246.2 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. [2018-01-20 23:58:49,972 INFO L168 Benchmark]: RCFGBuilder took 200.54 ms. Allocated memory is still 303.0 MB. Free memory was 246.2 MB in the beginning and 231.5 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 5.3 GB. [2018-01-20 23:58:49,972 INFO L168 Benchmark]: TraceAbstraction took 1519.96 ms. Allocated memory was 303.0 MB in the beginning and 456.7 MB in the end (delta: 153.6 MB). Free memory was 231.5 MB in the beginning and 338.5 MB in the end (delta: -107.0 MB). Peak memory consumption was 46.6 MB. Max. memory is 5.3 GB. [2018-01-20 23:58:49,974 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 303.0 MB. Free memory is still 267.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 206.13 ms. Allocated memory is still 303.0 MB. Free memory was 260.3 MB in the beginning and 247.2 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 35.74 ms. Allocated memory is still 303.0 MB. Free memory was 247.2 MB in the beginning and 246.2 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. * RCFGBuilder took 200.54 ms. Allocated memory is still 303.0 MB. Free memory was 246.2 MB in the beginning and 231.5 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1519.96 ms. Allocated memory was 303.0 MB in the beginning and 456.7 MB in the end (delta: 153.6 MB). Free memory was 231.5 MB in the beginning and 338.5 MB in the end (delta: -107.0 MB). Peak memory consumption was 46.6 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) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - 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: 1072]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1434] int *a9; VAL [\old(a9)=0, \old(a9)=0, a9={0:0}] [L1457] CALL entry_point() VAL [\old(a9)=0, \old(a9)=0, a9={0:0}] [L1448] CALL probe_9_2() VAL [\old(a9)=0, \old(a9)=0, a9={0:0}] [L1437] CALL ldv_malloc(sizeof(int)) VAL [\old(a9)=0, \old(a9)=0, \old(size)=4, a9={0:0}] [L1073] COND TRUE __VERIFIER_nondet_int() [L1074] EXPR, FCALL malloc(size) VAL [\old(a9)=0, \old(a9)=0, \old(size)=4, a9={0:0}, malloc(size)={7:0}, size=4] [L1074] return malloc(size); VAL [\old(a9)=0, \old(a9)=0, \old(size)=4, \result={7:0}, a9={0:0}, malloc(size)={7:0}, size=4] - StatisticsResult: Ultimate Automizer benchmark data for error location: ldv_mallocErr0EnsuresViolation CFG has 7 procedures, 37 locations, 7 error locations. UNSAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 24 SDtfs, 10 SDslu, 1 SDs, 0 SdLazy, 20 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 160 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - CounterExampleResult [Line: 1]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1434] int *a9; VAL [\old(a9)=2, \old(a9)=3, a9={0:0}] - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.initErr0EnsuresViolation CFG has 7 procedures, 37 locations, 7 error locations. UNSAFE Result, 0.0s 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=37occurred 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 - CounterExampleResult [Line: 1]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1434] int *a9; VAL [\old(a9)=0, \old(a9)=0, a9={0:0}] [L1457] CALL entry_point() VAL [\old(a9)=0, \old(a9)=0, a9={0:0}] [L1448] CALL, EXPR probe_9_2() VAL [\old(a9)=0, \old(a9)=0, a9={0:0}] [L1437] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(a9)=0, \old(a9)=0, \old(size)=4, a9={0:0}] [L1073] COND FALSE !(__VERIFIER_nondet_int()) [L1076] RET return 0; VAL [\old(a9)=0, \old(a9)=0, \old(size)=4, \result={0:0}, a9={0:0}, size=4] [L1437] EXPR ldv_malloc(sizeof(int)) VAL [\old(a9)=0, \old(a9)=0, a9={0:0}, ldv_malloc(sizeof(int))={0:0}] [L1437] a9 = (int *)ldv_malloc(sizeof(int)) [L1440] RET return - -3; VAL [\old(a9)=0, \old(a9)=0, \result=3, a9={0:0}] [L1448] EXPR probe_9_2() VAL [\old(a9)=0, \old(a9)=0, a9={0:0}, probe_9_2()=3] [L1448] int ret = probe_9_2(); [L1450] COND FALSE !(ret==0) VAL [\old(a9)=0, \old(a9)=0, a9={0:0}, ret=3] [L1453] RET a9 = 0 VAL [\old(a9)=0, \old(a9)=0, a9={0:0}, ret=3] [L1457] entry_point() VAL [a9={0:0}] - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0EnsuresViolation CFG has 7 procedures, 37 locations, 7 error locations. UNSAFE Result, 0.0s 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=37occurred 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, 23 NumberOfCodeBlocks, 23 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 - PositiveResult [Line: 1456]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: mainErr0EnsuresViolation CFG has 7 procedures, 37 locations, 7 error locations. SAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 24 SDtfs, 3 SDslu, 1 SDs, 0 SdLazy, 20 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 1040 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 1436]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: probe_9_2Err0EnsuresViolation CFG has 7 procedures, 37 locations, 7 error locations. SAFE Result, 0.0s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 24 SDtfs, 8 SDslu, 1 SDs, 0 SdLazy, 20 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 351 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 1447]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: entry_pointErr0EnsuresViolation CFG has 7 procedures, 37 locations, 7 error locations. SAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 24 SDtfs, 4 SDslu, 1 SDs, 0 SdLazy, 20 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 792 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 1443]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: disconnect_9Err0EnsuresViolation CFG has 7 procedures, 37 locations, 7 error locations. SAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 32 SDtfs, 32 SDslu, 55 SDs, 0 SdLazy, 76 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 1510 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: 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/memleaks_test9_1_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-20_23-58-49-984.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test9_1_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-20_23-58-49-984.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test9_1_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-20_23-58-49-984.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test9_1_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-20_23-58-49-984.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test9_1_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-20_23-58-49-984.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test9_1_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-4-2018-01-20_23-58-49-984.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test9_1_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-5-2018-01-20_23-58-49-984.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test9_1_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-6-2018-01-20_23-58-49-984.csv Received shutdown request...