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_Camel+AI_EQ.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test9_1_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-47db877 [2018-01-23 14:47:35,721 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-23 14:47:35,723 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-23 14:47:35,735 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-23 14:47:35,735 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-23 14:47:35,736 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-23 14:47:35,736 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-23 14:47:35,737 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-23 14:47:35,739 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-23 14:47:35,739 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-23 14:47:35,740 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-23 14:47:35,740 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-23 14:47:35,741 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-23 14:47:35,742 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-23 14:47:35,742 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-23 14:47:35,744 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-23 14:47:35,746 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-23 14:47:35,748 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-23 14:47:35,750 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-23 14:47:35,751 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-23 14:47:35,753 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-23 14:47:35,758 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-23 14:47:35,759 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-23 14:47:35,759 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Camel+AI_EQ.epf [2018-01-23 14:47:35,769 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-23 14:47:35,769 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-23 14:47:35,770 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-23 14:47:35,770 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-23 14:47:35,770 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-23 14:47:35,771 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-23 14:47:35,771 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-23 14:47:35,771 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-23 14:47:35,772 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-23 14:47:35,772 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-23 14:47:35,772 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-23 14:47:35,772 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-23 14:47:35,772 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-23 14:47:35,773 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-23 14:47:35,773 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-23 14:47:35,773 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-23 14:47:35,773 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-23 14:47:35,773 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-23 14:47:35,773 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-23 14:47:35,774 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-23 14:47:35,774 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-23 14:47:35,774 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-23 14:47:35,774 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-23 14:47:35,774 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-23 14:47:35,774 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-23 14:47:35,775 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-23 14:47:35,775 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-23 14:47:35,775 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-23 14:47:35,775 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-23 14:47:35,775 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-23 14:47:35,775 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-23 14:47:35,776 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-23 14:47:35,776 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-23 14:47:35,776 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-23 14:47:35,776 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-23 14:47:35,777 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-23 14:47:35,777 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-23 14:47:35,811 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-23 14:47:35,823 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-23 14:47:35,827 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-23 14:47:35,828 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-23 14:47:35,829 INFO L276 PluginConnector]: CDTParser initialized [2018-01-23 14:47:35,830 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test9_1_false-valid-memtrack_true-termination.i [2018-01-23 14:47:36,023 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-23 14:47:36,028 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-23 14:47:36,029 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-23 14:47:36,029 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-23 14:47:36,034 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-23 14:47:36,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 02:47:36" (1/1) ... [2018-01-23 14:47:36,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21a8c6a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:47:36, skipping insertion in model container [2018-01-23 14:47:36,038 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 02:47:36" (1/1) ... [2018-01-23 14:47:36,051 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-23 14:47:36,100 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-23 14:47:36,215 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-23 14:47:36,229 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-23 14:47:36,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:47:36 WrapperNode [2018-01-23 14:47:36,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-23 14:47:36,235 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-23 14:47:36,235 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-23 14:47:36,235 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-23 14:47:36,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:47:36" (1/1) ... [2018-01-23 14:47:36,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:47:36" (1/1) ... [2018-01-23 14:47:36,260 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:47:36" (1/1) ... [2018-01-23 14:47:36,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:47:36" (1/1) ... [2018-01-23 14:47:36,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:47:36" (1/1) ... [2018-01-23 14:47:36,265 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:47:36" (1/1) ... [2018-01-23 14:47:36,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:47:36" (1/1) ... [2018-01-23 14:47:36,267 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-23 14:47:36,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-23 14:47:36,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-23 14:47:36,268 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-23 14:47:36,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:47:36" (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 [2018-01-23 14:47:36,323 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-23 14:47:36,324 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-23 14:47:36,324 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-23 14:47:36,324 INFO L136 BoogieDeclarations]: Found implementation of procedure probe_9_2 [2018-01-23 14:47:36,324 INFO L136 BoogieDeclarations]: Found implementation of procedure disconnect_9 [2018-01-23 14:47:36,324 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-23 14:47:36,325 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-23 14:47:36,325 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-23 14:47:36,325 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-23 14:47:36,325 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-23 14:47:36,325 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-23 14:47:36,325 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-23 14:47:36,325 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-23 14:47:36,326 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-23 14:47:36,326 INFO L128 BoogieDeclarations]: Found specification of procedure probe_9_2 [2018-01-23 14:47:36,326 INFO L128 BoogieDeclarations]: Found specification of procedure disconnect_9 [2018-01-23 14:47:36,326 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-23 14:47:36,326 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-23 14:47:36,327 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-23 14:47:36,327 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-23 14:47:36,466 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-23 14:47:36,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 02:47:36 BoogieIcfgContainer [2018-01-23 14:47:36,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-23 14:47:36,468 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-23 14:47:36,468 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-23 14:47:36,470 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-23 14:47:36,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.01 02:47:36" (1/3) ... [2018-01-23 14:47:36,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@519a3961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 02:47:36, skipping insertion in model container [2018-01-23 14:47:36,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:47:36" (2/3) ... [2018-01-23 14:47:36,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@519a3961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 02:47:36, skipping insertion in model container [2018-01-23 14:47:36,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 02:47:36" (3/3) ... [2018-01-23 14:47:36,473 INFO L105 eAbstractionObserver]: Analyzing ICFG memleaks_test9_1_false-valid-memtrack_true-termination.i [2018-01-23 14:47:36,479 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-23 14:47:36,485 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-01-23 14:47:36,532 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-23 14:47:36,532 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-23 14:47:36,532 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-23 14:47:36,532 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-23 14:47:36,532 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-23 14:47:36,532 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-23 14:47:36,532 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-23 14:47:36,532 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ldv_mallocErr0EnsuresViolation======== [2018-01-23 14:47:36,533 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-23 14:47:36,551 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-01-23 14:47:36,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-01-23 14:47:36,558 INFO L314 BasicCegarLoop]: Found error trace [2018-01-23 14:47:36,559 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-23 14:47:36,559 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ldv_mallocErr0EnsuresViolation]=== [2018-01-23 14:47:36,565 INFO L82 PathProgramCache]: Analyzing trace with hash -626861590, now seen corresponding path program 1 times [2018-01-23 14:47:36,566 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-23 14:47:36,567 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-23 14:47:36,615 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:47:36,615 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-23 14:47:36,615 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:47:36,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-23 14:47:36,665 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-23 14:47:36,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-23 14:47:36,734 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-23 14:47:36,734 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-23 14:47:36,736 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-23 14:47:36,750 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-23 14:47:36,751 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-23 14:47:36,754 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 3 states. [2018-01-23 14:47:36,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-23 14:47:36,905 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2018-01-23 14:47:36,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-23 14:47:36,906 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-01-23 14:47:36,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-23 14:47:36,914 INFO L225 Difference]: With dead ends: 39 [2018-01-23 14:47:36,914 INFO L226 Difference]: Without dead ends: 14 [2018-01-23 14:47:36,981 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 [2018-01-23 14:47:36,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-01-23 14:47:37,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-01-23 14:47:37,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-01-23 14:47:37,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2018-01-23 14:47:37,009 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 11 [2018-01-23 14:47:37,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-23 14:47:37,010 INFO L432 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2018-01-23 14:47:37,010 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-23 14:47:37,010 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2018-01-23 14:47:37,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-23 14:47:37,010 INFO L314 BasicCegarLoop]: Found error trace [2018-01-23 14:47:37,011 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-23 14:47:37,011 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ldv_mallocErr0EnsuresViolation]=== [2018-01-23 14:47:37,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1118659508, now seen corresponding path program 1 times [2018-01-23 14:47:37,011 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-23 14:47:37,011 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-23 14:47:37,013 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:47:37,013 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-23 14:47:37,014 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:47:37,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-23 14:47:37,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-23 14:47:37,088 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-23 14:47:37,100 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 14:47:37,102 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 14:47:37,115 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-23 14:47:37,116 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-23 14:47:37,116 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-23 14:47:37,116 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-23 14:47:37,116 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-23 14:47:37,116 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-23 14:47:37,116 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-23 14:47:37,116 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-23 14:47:37,117 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-23 14:47:37,118 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-01-23 14:47:37,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-23 14:47:37,119 INFO L314 BasicCegarLoop]: Found error trace [2018-01-23 14:47:37,119 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-23 14:47:37,119 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-23 14:47:37,119 INFO L82 PathProgramCache]: Analyzing trace with hash 68617, now seen corresponding path program 1 times [2018-01-23 14:47:37,119 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-23 14:47:37,119 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-23 14:47:37,121 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:47:37,122 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-23 14:47:37,122 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:47:37,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-23 14:47:37,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-23 14:47:37,136 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-23 14:47:37,138 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 14:47:37,140 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-23 14:47:37,141 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-23 14:47:37,141 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-23 14:47:37,141 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-23 14:47:37,141 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-23 14:47:37,141 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-23 14:47:37,141 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-23 14:47:37,141 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-23 14:47:37,141 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-23 14:47:37,143 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-01-23 14:47:37,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-23 14:47:37,145 INFO L314 BasicCegarLoop]: Found error trace [2018-01-23 14:47:37,145 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] [2018-01-23 14:47:37,145 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-23 14:47:37,145 INFO L82 PathProgramCache]: Analyzing trace with hash -2069234830, now seen corresponding path program 1 times [2018-01-23 14:47:37,145 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-23 14:47:37,145 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-23 14:47:37,147 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:47:37,147 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-23 14:47:37,147 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:47:37,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-23 14:47:37,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-23 14:47:37,190 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-23 14:47:37,194 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 14:47:37,195 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 14:47:37,196 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 14:47:37,197 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 14:47:37,197 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 14:47:37,198 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 14:47:37,203 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-23 14:47:37,203 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-23 14:47:37,203 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-23 14:47:37,203 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-23 14:47:37,203 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-23 14:47:37,204 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-23 14:47:37,204 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-23 14:47:37,204 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-23 14:47:37,204 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-23 14:47:37,206 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-01-23 14:47:37,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-01-23 14:47:37,207 INFO L314 BasicCegarLoop]: Found error trace [2018-01-23 14:47:37,207 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] [2018-01-23 14:47:37,207 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-01-23 14:47:37,207 INFO L82 PathProgramCache]: Analyzing trace with hash -998800148, now seen corresponding path program 1 times [2018-01-23 14:47:37,208 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-23 14:47:37,208 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-23 14:47:37,209 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:47:37,210 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-23 14:47:37,210 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:47:37,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-23 14:47:37,233 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-23 14:47:37,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-23 14:47:37,283 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-23 14:47:37,283 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-23 14:47:37,283 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-23 14:47:37,284 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-23 14:47:37,284 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-23 14:47:37,284 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 3 states. [2018-01-23 14:47:37,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-23 14:47:37,406 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2018-01-23 14:47:37,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-23 14:47:37,407 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2018-01-23 14:47:37,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-23 14:47:37,407 INFO L225 Difference]: With dead ends: 39 [2018-01-23 14:47:37,407 INFO L226 Difference]: Without dead ends: 0 [2018-01-23 14:47:37,408 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 [2018-01-23 14:47:37,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-23 14:47:37,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-23 14:47:37,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-23 14:47:37,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-23 14:47:37,409 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-01-23 14:47:37,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-23 14:47:37,409 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-23 14:47:37,409 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-23 14:47:37,409 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-23 14:47:37,409 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-23 14:47:37,412 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-23 14:47:37,412 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-23 14:47:37,412 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-23 14:47:37,412 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-23 14:47:37,412 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-23 14:47:37,413 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-23 14:47:37,413 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-23 14:47:37,413 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == probe_9_2Err0EnsuresViolation======== [2018-01-23 14:47:37,413 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-23 14:47:37,414 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-01-23 14:47:37,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-01-23 14:47:37,414 INFO L314 BasicCegarLoop]: Found error trace [2018-01-23 14:47:37,415 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-23 14:47:37,415 INFO L371 AbstractCegarLoop]: === Iteration 1 === [probe_9_2Err0EnsuresViolation]=== [2018-01-23 14:47:37,415 INFO L82 PathProgramCache]: Analyzing trace with hash -315810586, now seen corresponding path program 1 times [2018-01-23 14:47:37,415 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-23 14:47:37,415 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-23 14:47:37,416 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:47:37,417 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-23 14:47:37,417 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:47:37,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-23 14:47:37,429 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-23 14:47:37,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-23 14:47:37,470 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-23 14:47:37,471 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-23 14:47:37,471 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-23 14:47:37,471 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-23 14:47:37,471 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-23 14:47:37,472 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 3 states. [2018-01-23 14:47:37,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-23 14:47:37,543 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2018-01-23 14:47:37,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-23 14:47:37,544 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-01-23 14:47:37,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-23 14:47:37,544 INFO L225 Difference]: With dead ends: 39 [2018-01-23 14:47:37,544 INFO L226 Difference]: Without dead ends: 0 [2018-01-23 14:47:37,545 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 [2018-01-23 14:47:37,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-23 14:47:37,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-23 14:47:37,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-23 14:47:37,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-23 14:47:37,546 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-01-23 14:47:37,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-23 14:47:37,546 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-23 14:47:37,547 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-23 14:47:37,547 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-23 14:47:37,547 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-23 14:47:37,548 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-23 14:47:37,549 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-23 14:47:37,549 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-23 14:47:37,549 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-23 14:47:37,549 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-23 14:47:37,549 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-23 14:47:37,549 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-23 14:47:37,549 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == entry_pointErr0EnsuresViolation======== [2018-01-23 14:47:37,550 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-23 14:47:37,551 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-01-23 14:47:37,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-23 14:47:37,552 INFO L314 BasicCegarLoop]: Found error trace [2018-01-23 14:47:37,552 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-23 14:47:37,552 INFO L371 AbstractCegarLoop]: === Iteration 1 === [entry_pointErr0EnsuresViolation]=== [2018-01-23 14:47:37,553 INFO L82 PathProgramCache]: Analyzing trace with hash -1744054158, now seen corresponding path program 1 times [2018-01-23 14:47:37,553 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-23 14:47:37,553 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-23 14:47:37,554 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:47:37,555 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-23 14:47:37,555 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:47:37,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-23 14:47:37,567 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-23 14:47:37,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-23 14:47:37,597 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-23 14:47:37,597 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-23 14:47:37,597 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-23 14:47:37,597 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-23 14:47:37,598 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-23 14:47:37,598 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 3 states. [2018-01-23 14:47:37,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-23 14:47:37,665 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2018-01-23 14:47:37,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-23 14:47:37,665 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-01-23 14:47:37,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-23 14:47:37,666 INFO L225 Difference]: With dead ends: 39 [2018-01-23 14:47:37,666 INFO L226 Difference]: Without dead ends: 0 [2018-01-23 14:47:37,666 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 [2018-01-23 14:47:37,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-23 14:47:37,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-23 14:47:37,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-23 14:47:37,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-23 14:47:37,667 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2018-01-23 14:47:37,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-23 14:47:37,668 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-23 14:47:37,668 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-23 14:47:37,668 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-23 14:47:37,668 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-23 14:47:37,670 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-23 14:47:37,670 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-23 14:47:37,670 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-23 14:47:37,670 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-23 14:47:37,670 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-23 14:47:37,670 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-23 14:47:37,670 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-23 14:47:37,671 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == disconnect_9Err0EnsuresViolation======== [2018-01-23 14:47:37,671 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-23 14:47:37,672 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-01-23 14:47:37,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-23 14:47:37,673 INFO L314 BasicCegarLoop]: Found error trace [2018-01-23 14:47:37,673 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] [2018-01-23 14:47:37,673 INFO L371 AbstractCegarLoop]: === Iteration 1 === [disconnect_9Err0EnsuresViolation]=== [2018-01-23 14:47:37,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1768822021, now seen corresponding path program 1 times [2018-01-23 14:47:37,674 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-23 14:47:37,674 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-23 14:47:37,675 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:47:37,675 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-23 14:47:37,675 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:47:37,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-23 14:47:37,688 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-23 14:47:37,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-23 14:47:37,762 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-23 14:47:37,762 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-23 14:47:37,762 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-23 14:47:37,762 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-23 14:47:37,762 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-23 14:47:37,763 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 7 states. [2018-01-23 14:47:37,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-23 14:47:37,893 INFO L93 Difference]: Finished difference Result 51 states and 54 transitions. [2018-01-23 14:47:37,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-23 14:47:37,893 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-01-23 14:47:37,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-23 14:47:37,894 INFO L225 Difference]: With dead ends: 51 [2018-01-23 14:47:37,894 INFO L226 Difference]: Without dead ends: 23 [2018-01-23 14:47:37,895 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 [2018-01-23 14:47:37,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-01-23 14:47:37,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-01-23 14:47:37,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-01-23 14:47:37,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2018-01-23 14:47:37,900 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 20 [2018-01-23 14:47:37,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-23 14:47:37,900 INFO L432 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2018-01-23 14:47:37,901 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-23 14:47:37,901 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2018-01-23 14:47:37,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-23 14:47:37,902 INFO L314 BasicCegarLoop]: Found error trace [2018-01-23 14:47:37,902 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] [2018-01-23 14:47:37,902 INFO L371 AbstractCegarLoop]: === Iteration 2 === [disconnect_9Err0EnsuresViolation]=== [2018-01-23 14:47:37,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1198907619, now seen corresponding path program 1 times [2018-01-23 14:47:37,902 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-23 14:47:37,903 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-23 14:47:37,904 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:47:37,904 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-23 14:47:37,904 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-23 14:47:37,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-23 14:47:37,917 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-23 14:47:37,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-23 14:47:37,958 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-23 14:47:37,959 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-23 14:47:37,959 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-23 14:47:37,959 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-23 14:47:37,959 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-23 14:47:37,960 INFO L87 Difference]: Start difference. First operand 23 states and 22 transitions. Second operand 4 states. [2018-01-23 14:47:38,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-23 14:47:38,006 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2018-01-23 14:47:38,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-23 14:47:38,006 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2018-01-23 14:47:38,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-23 14:47:38,007 INFO L225 Difference]: With dead ends: 23 [2018-01-23 14:47:38,007 INFO L226 Difference]: Without dead ends: 0 [2018-01-23 14:47:38,008 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 [2018-01-23 14:47:38,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-23 14:47:38,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-23 14:47:38,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-23 14:47:38,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-23 14:47:38,009 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2018-01-23 14:47:38,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-23 14:47:38,009 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-23 14:47:38,009 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-23 14:47:38,009 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-23 14:47:38,009 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-23 14:47:38,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.01 02:47:38 BoogieIcfgContainer [2018-01-23 14:47:38,011 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-23 14:47:38,012 INFO L168 Benchmark]: Toolchain (without parser) took 1988.46 ms. Allocated memory was 305.7 MB in the beginning and 467.1 MB in the end (delta: 161.5 MB). Free memory was 262.6 MB in the beginning and 350.0 MB in the end (delta: -87.4 MB). Peak memory consumption was 74.0 MB. Max. memory is 5.3 GB. [2018-01-23 14:47:38,013 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 305.7 MB. Free memory is still 269.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-23 14:47:38,013 INFO L168 Benchmark]: CACSL2BoogieTranslator took 205.48 ms. Allocated memory is still 305.7 MB. Free memory was 262.6 MB in the beginning and 249.6 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 5.3 GB. [2018-01-23 14:47:38,014 INFO L168 Benchmark]: Boogie Preprocessor took 32.51 ms. Allocated memory is still 305.7 MB. Free memory was 249.6 MB in the beginning and 248.6 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. [2018-01-23 14:47:38,014 INFO L168 Benchmark]: RCFGBuilder took 199.23 ms. Allocated memory is still 305.7 MB. Free memory was 248.6 MB in the beginning and 233.6 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 5.3 GB. [2018-01-23 14:47:38,014 INFO L168 Benchmark]: TraceAbstraction took 1543.89 ms. Allocated memory was 305.7 MB in the beginning and 467.1 MB in the end (delta: 161.5 MB). Free memory was 233.6 MB in the beginning and 350.0 MB in the end (delta: -116.4 MB). Peak memory consumption was 45.0 MB. Max. memory is 5.3 GB. [2018-01-23 14:47:38,016 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 305.7 MB. Free memory is still 269.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 205.48 ms. Allocated memory is still 305.7 MB. Free memory was 262.6 MB in the beginning and 249.6 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 32.51 ms. Allocated memory is still 305.7 MB. Free memory was 249.6 MB in the beginning and 248.6 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. * RCFGBuilder took 199.23 ms. Allocated memory is still 305.7 MB. Free memory was 248.6 MB in the beginning and 233.6 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1543.89 ms. Allocated memory was 305.7 MB in the beginning and 467.1 MB in the end (delta: 161.5 MB). Free memory was 233.6 MB in the beginning and 350.0 MB in the end (delta: -116.4 MB). Peak memory consumption was 45.0 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, 0.5s 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, 0.1s 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)=3, \old(a9)=2, 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, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 24 SDtfs, 3 SDslu, 1 SDs, 0 SdLazy, 20 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s 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, 0.1s 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, 0.0s 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, 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_Camel+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-23_14-47-38-027.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_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-23_14-47-38-027.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_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-23_14-47-38-027.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_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-23_14-47-38-027.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_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-23_14-47-38-027.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_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-4-2018-01-23_14-47-38-027.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_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-5-2018-01-23_14-47-38-027.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_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-6-2018-01-23_14-47-38-027.csv Received shutdown request...