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_test17_1_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-20 22:21:05,677 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-20 22:21:05,679 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-20 22:21:05,696 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-20 22:21:05,697 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-20 22:21:05,698 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-20 22:21:05,699 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-20 22:21:05,701 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-20 22:21:05,703 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-20 22:21:05,704 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-20 22:21:05,705 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-20 22:21:05,705 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-20 22:21:05,706 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-20 22:21:05,708 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-20 22:21:05,708 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-20 22:21:05,711 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-20 22:21:05,713 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-20 22:21:05,715 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-20 22:21:05,716 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-20 22:21:05,718 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-20 22:21:05,720 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-20 22:21:05,725 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-20 22:21:05,726 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-20 22:21:05,726 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 [2018-01-20 22:21:05,736 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-20 22:21:05,736 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-20 22:21:05,737 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-20 22:21:05,737 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-20 22:21:05,737 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-20 22:21:05,738 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-20 22:21:05,738 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-20 22:21:05,738 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-20 22:21:05,739 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-20 22:21:05,739 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-20 22:21:05,739 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-20 22:21:05,739 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-20 22:21:05,739 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-20 22:21:05,740 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-20 22:21:05,740 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-20 22:21:05,740 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-20 22:21:05,740 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-20 22:21:05,740 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-20 22:21:05,741 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-20 22:21:05,741 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-20 22:21:05,741 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-20 22:21:05,741 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-20 22:21:05,741 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-20 22:21:05,742 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-20 22:21:05,742 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-20 22:21:05,742 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-20 22:21:05,742 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-20 22:21:05,742 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-20 22:21:05,743 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-20 22:21:05,743 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-20 22:21:05,743 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-20 22:21:05,743 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-20 22:21:05,743 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-20 22:21:05,743 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-20 22:21:05,743 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-20 22:21:05,744 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-20 22:21:05,745 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-20 22:21:05,779 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-20 22:21:05,792 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-20 22:21:05,796 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-20 22:21:05,797 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-20 22:21:05,798 INFO L276 PluginConnector]: CDTParser initialized [2018-01-20 22:21:05,798 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test17_1_false-valid-memtrack.i [2018-01-20 22:21:06,001 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-20 22:21:06,007 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-20 22:21:06,008 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-20 22:21:06,008 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-20 22:21:06,013 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-20 22:21:06,014 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 10:21:05" (1/1) ... [2018-01-20 22:21:06,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b3acea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:21:06, skipping insertion in model container [2018-01-20 22:21:06,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 10:21:05" (1/1) ... [2018-01-20 22:21:06,037 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-20 22:21:06,092 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-20 22:21:06,217 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-20 22:21:06,240 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-20 22:21:06,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:21:06 WrapperNode [2018-01-20 22:21:06,249 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-20 22:21:06,250 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-20 22:21:06,250 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-20 22:21:06,250 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-20 22:21:06,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:21:06" (1/1) ... [2018-01-20 22:21:06,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:21:06" (1/1) ... [2018-01-20 22:21:06,272 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:21:06" (1/1) ... [2018-01-20 22:21:06,272 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:21:06" (1/1) ... [2018-01-20 22:21:06,278 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:21:06" (1/1) ... [2018-01-20 22:21:06,283 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:21:06" (1/1) ... [2018-01-20 22:21:06,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:21:06" (1/1) ... [2018-01-20 22:21:06,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-20 22:21:06,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-20 22:21:06,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-20 22:21:06,288 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-20 22:21:06,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:21:06" (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 22:21:06,340 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-20 22:21:06,340 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-20 22:21:06,341 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-20 22:21:06,341 INFO L136 BoogieDeclarations]: Found implementation of procedure alloc_17 [2018-01-20 22:21:06,341 INFO L136 BoogieDeclarations]: Found implementation of procedure free_17 [2018-01-20 22:21:06,341 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-20 22:21:06,341 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-20 22:21:06,341 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-20 22:21:06,341 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-20 22:21:06,341 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-20 22:21:06,341 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-20 22:21:06,342 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-20 22:21:06,342 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-20 22:21:06,342 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-20 22:21:06,342 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-20 22:21:06,342 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-20 22:21:06,342 INFO L128 BoogieDeclarations]: Found specification of procedure alloc_17 [2018-01-20 22:21:06,342 INFO L128 BoogieDeclarations]: Found specification of procedure free_17 [2018-01-20 22:21:06,342 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-20 22:21:06,342 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-20 22:21:06,342 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-20 22:21:06,343 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-20 22:21:06,595 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-20 22:21:06,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 10:21:06 BoogieIcfgContainer [2018-01-20 22:21:06,596 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-20 22:21:06,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-20 22:21:06,597 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-20 22:21:06,598 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-20 22:21:06,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 10:21:05" (1/3) ... [2018-01-20 22:21:06,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eb86b6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 10:21:06, skipping insertion in model container [2018-01-20 22:21:06,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 10:21:06" (2/3) ... [2018-01-20 22:21:06,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eb86b6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 10:21:06, skipping insertion in model container [2018-01-20 22:21:06,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 10:21:06" (3/3) ... [2018-01-20 22:21:06,602 INFO L105 eAbstractionObserver]: Analyzing ICFG memleaks_test17_1_false-valid-memtrack.i [2018-01-20 22:21:06,610 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-20 22:21:06,617 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-01-20 22:21:06,653 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 22:21:06,653 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 22:21:06,653 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 22:21:06,653 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 22:21:06,653 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 22:21:06,654 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 22:21:06,654 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 22:21:06,654 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ldv_mallocErr0EnsuresViolation======== [2018-01-20 22:21:06,655 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 22:21:06,677 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2018-01-20 22:21:06,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-01-20 22:21:06,685 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 22:21:06,686 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 22:21:06,686 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ldv_mallocErr0EnsuresViolation]=== [2018-01-20 22:21:06,692 INFO L82 PathProgramCache]: Analyzing trace with hash 441029511, now seen corresponding path program 1 times [2018-01-20 22:21:06,694 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 22:21:06,695 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 22:21:06,751 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:21:06,751 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 22:21:06,752 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:21:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 22:21:06,804 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 22:21:06,861 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 22:21:06,864 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 22:21:06,864 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-20 22:21:06,866 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-20 22:21:06,881 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-20 22:21:06,881 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-20 22:21:06,884 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 3 states. [2018-01-20 22:21:07,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 22:21:07,124 INFO L93 Difference]: Finished difference Result 125 states and 154 transitions. [2018-01-20 22:21:07,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-20 22:21:07,126 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-01-20 22:21:07,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 22:21:07,134 INFO L225 Difference]: With dead ends: 125 [2018-01-20 22:21:07,134 INFO L226 Difference]: Without dead ends: 31 [2018-01-20 22:21:07,137 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 22:21:07,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-01-20 22:21:07,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-01-20 22:21:07,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-01-20 22:21:07,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2018-01-20 22:21:07,168 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 11 [2018-01-20 22:21:07,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 22:21:07,168 INFO L432 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2018-01-20 22:21:07,168 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-20 22:21:07,168 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2018-01-20 22:21:07,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-20 22:21:07,169 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 22:21:07,170 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 22:21:07,170 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ldv_mallocErr0EnsuresViolation]=== [2018-01-20 22:21:07,170 INFO L82 PathProgramCache]: Analyzing trace with hash -1372495191, now seen corresponding path program 1 times [2018-01-20 22:21:07,170 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 22:21:07,170 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 22:21:07,172 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:21:07,172 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 22:21:07,173 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:21:07,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 22:21:07,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 22:21:07,230 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-20 22:21:07,237 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 22:21:07,239 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 22:21:07,250 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 22:21:07,250 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 22:21:07,251 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 22:21:07,251 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 22:21:07,251 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 22:21:07,251 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 22:21:07,251 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 22:21:07,251 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-20 22:21:07,251 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 22:21:07,254 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2018-01-20 22:21:07,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-20 22:21:07,254 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 22:21:07,254 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-20 22:21:07,255 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-20 22:21:07,255 INFO L82 PathProgramCache]: Analyzing trace with hash 141653, now seen corresponding path program 1 times [2018-01-20 22:21:07,255 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 22:21:07,255 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 22:21:07,256 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:21:07,257 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 22:21:07,257 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:21:07,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 22:21:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 22:21:07,264 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-20 22:21:07,264 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 22:21:07,266 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 22:21:07,266 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 22:21:07,266 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 22:21:07,266 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 22:21:07,266 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 22:21:07,266 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 22:21:07,267 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 22:21:07,267 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == alloc_17Err0EnsuresViolation======== [2018-01-20 22:21:07,267 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 22:21:07,268 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2018-01-20 22:21:07,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-20 22:21:07,269 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 22:21:07,270 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 22:21:07,270 INFO L371 AbstractCegarLoop]: === Iteration 1 === [alloc_17Err0EnsuresViolation]=== [2018-01-20 22:21:07,270 INFO L82 PathProgramCache]: Analyzing trace with hash 1541289171, now seen corresponding path program 1 times [2018-01-20 22:21:07,270 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 22:21:07,270 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 22:21:07,271 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:21:07,271 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 22:21:07,271 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:21:07,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 22:21:07,285 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 22:21:07,305 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 22:21:07,306 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 22:21:07,306 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-20 22:21:07,306 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-20 22:21:07,306 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-20 22:21:07,306 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-20 22:21:07,307 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 2 states. [2018-01-20 22:21:07,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 22:21:07,315 INFO L93 Difference]: Finished difference Result 115 states and 135 transitions. [2018-01-20 22:21:07,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-20 22:21:07,316 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-01-20 22:21:07,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 22:21:07,317 INFO L225 Difference]: With dead ends: 115 [2018-01-20 22:21:07,317 INFO L226 Difference]: Without dead ends: 41 [2018-01-20 22:21:07,318 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-20 22:21:07,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-01-20 22:21:07,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-01-20 22:21:07,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-01-20 22:21:07,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2018-01-20 22:21:07,328 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 20 [2018-01-20 22:21:07,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 22:21:07,330 INFO L432 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2018-01-20 22:21:07,330 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-20 22:21:07,331 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2018-01-20 22:21:07,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-20 22:21:07,332 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 22:21:07,332 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 22:21:07,332 INFO L371 AbstractCegarLoop]: === Iteration 2 === [alloc_17Err0EnsuresViolation]=== [2018-01-20 22:21:07,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1909953208, now seen corresponding path program 1 times [2018-01-20 22:21:07,332 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 22:21:07,332 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 22:21:07,334 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:21:07,334 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 22:21:07,334 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:21:07,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 22:21:07,351 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 22:21:07,433 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 22:21:07,433 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 22:21:07,434 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-20 22:21:07,434 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-20 22:21:07,434 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-20 22:21:07,434 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-20 22:21:07,434 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 5 states. [2018-01-20 22:21:07,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 22:21:07,451 INFO L93 Difference]: Finished difference Result 76 states and 86 transitions. [2018-01-20 22:21:07,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-20 22:21:07,451 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2018-01-20 22:21:07,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 22:21:07,454 INFO L225 Difference]: With dead ends: 76 [2018-01-20 22:21:07,455 INFO L226 Difference]: Without dead ends: 43 [2018-01-20 22:21:07,455 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-20 22:21:07,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-01-20 22:21:07,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-01-20 22:21:07,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-01-20 22:21:07,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2018-01-20 22:21:07,462 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 22 [2018-01-20 22:21:07,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 22:21:07,463 INFO L432 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2018-01-20 22:21:07,463 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-20 22:21:07,463 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2018-01-20 22:21:07,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-01-20 22:21:07,464 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 22:21:07,464 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 22:21:07,464 INFO L371 AbstractCegarLoop]: === Iteration 3 === [alloc_17Err0EnsuresViolation]=== [2018-01-20 22:21:07,464 INFO L82 PathProgramCache]: Analyzing trace with hash -30329626, now seen corresponding path program 1 times [2018-01-20 22:21:07,465 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 22:21:07,465 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 22:21:07,466 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:21:07,466 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 22:21:07,466 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:21:07,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 22:21:07,484 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 22:21:07,528 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 22:21:07,529 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 22:21:07,529 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-20 22:21:07,529 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-20 22:21:07,529 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-20 22:21:07,529 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-20 22:21:07,530 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand 4 states. [2018-01-20 22:21:07,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 22:21:07,569 INFO L93 Difference]: Finished difference Result 50 states and 55 transitions. [2018-01-20 22:21:07,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-20 22:21:07,570 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2018-01-20 22:21:07,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 22:21:07,570 INFO L225 Difference]: With dead ends: 50 [2018-01-20 22:21:07,570 INFO L226 Difference]: Without dead ends: 0 [2018-01-20 22:21:07,571 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 22:21:07,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-20 22:21:07,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-20 22:21:07,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-20 22:21:07,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-20 22:21:07,572 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2018-01-20 22:21:07,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 22:21:07,572 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-20 22:21:07,572 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-20 22:21:07,573 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-20 22:21:07,573 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-20 22:21:07,576 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 22:21:07,576 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 22:21:07,576 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 22:21:07,576 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 22:21:07,577 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 22:21:07,577 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 22:21:07,577 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 22:21:07,577 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-20 22:21:07,577 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 22:21:07,579 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2018-01-20 22:21:07,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-20 22:21:07,580 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 22:21:07,580 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 22:21:07,580 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-20 22:21:07,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1549449137, now seen corresponding path program 1 times [2018-01-20 22:21:07,580 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 22:21:07,581 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 22:21:07,582 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:21:07,582 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 22:21:07,583 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:21:07,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 22:21:07,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 22:21:07,606 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-20 22:21:07,608 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 22:21:07,609 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 22:21:07,609 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 22:21:07,610 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 22:21:07,610 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 22:21:07,613 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 22:21:07,613 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 22:21:07,613 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 22:21:07,613 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 22:21:07,613 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 22:21:07,613 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 22:21:07,614 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 22:21:07,614 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-20 22:21:07,614 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 22:21:07,615 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2018-01-20 22:21:07,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-01-20 22:21:07,616 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 22:21:07,616 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 22:21:07,616 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-01-20 22:21:07,617 INFO L82 PathProgramCache]: Analyzing trace with hash 931220233, now seen corresponding path program 1 times [2018-01-20 22:21:07,617 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 22:21:07,617 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 22:21:07,618 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:21:07,618 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 22:21:07,619 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:21:07,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 22:21:07,628 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 22:21:07,659 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 22:21:07,660 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 22:21:07,660 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-20 22:21:07,660 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-20 22:21:07,660 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-20 22:21:07,660 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-20 22:21:07,661 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 3 states. [2018-01-20 22:21:07,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 22:21:07,735 INFO L93 Difference]: Finished difference Result 125 states and 154 transitions. [2018-01-20 22:21:07,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-20 22:21:07,736 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-01-20 22:21:07,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 22:21:07,736 INFO L225 Difference]: With dead ends: 125 [2018-01-20 22:21:07,736 INFO L226 Difference]: Without dead ends: 0 [2018-01-20 22:21:07,737 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 22:21:07,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-20 22:21:07,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-20 22:21:07,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-20 22:21:07,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-20 22:21:07,737 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2018-01-20 22:21:07,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 22:21:07,738 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-20 22:21:07,738 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-20 22:21:07,738 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-20 22:21:07,738 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-20 22:21:07,739 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 22:21:07,739 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 22:21:07,739 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 22:21:07,739 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 22:21:07,739 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 22:21:07,739 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 22:21:07,739 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 22:21:07,739 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == free_17Err0EnsuresViolation======== [2018-01-20 22:21:07,740 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 22:21:07,741 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2018-01-20 22:21:07,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-20 22:21:07,742 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 22:21:07,742 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 22:21:07,742 INFO L371 AbstractCegarLoop]: === Iteration 1 === [free_17Err0EnsuresViolation]=== [2018-01-20 22:21:07,742 INFO L82 PathProgramCache]: Analyzing trace with hash 2119379531, now seen corresponding path program 1 times [2018-01-20 22:21:07,742 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 22:21:07,742 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 22:21:07,743 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:21:07,743 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 22:21:07,744 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:21:07,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 22:21:07,754 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 22:21:07,766 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 22:21:07,766 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 22:21:07,766 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-20 22:21:07,767 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-20 22:21:07,767 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-20 22:21:07,767 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-20 22:21:07,767 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 2 states. [2018-01-20 22:21:07,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 22:21:07,772 INFO L93 Difference]: Finished difference Result 115 states and 135 transitions. [2018-01-20 22:21:07,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-20 22:21:07,773 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 26 [2018-01-20 22:21:07,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 22:21:07,774 INFO L225 Difference]: With dead ends: 115 [2018-01-20 22:21:07,774 INFO L226 Difference]: Without dead ends: 52 [2018-01-20 22:21:07,775 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-20 22:21:07,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-01-20 22:21:07,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-01-20 22:21:07,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-01-20 22:21:07,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 58 transitions. [2018-01-20 22:21:07,781 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 58 transitions. Word has length 26 [2018-01-20 22:21:07,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 22:21:07,782 INFO L432 AbstractCegarLoop]: Abstraction has 52 states and 58 transitions. [2018-01-20 22:21:07,782 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-20 22:21:07,782 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 58 transitions. [2018-01-20 22:21:07,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-01-20 22:21:07,783 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 22:21:07,784 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 22:21:07,784 INFO L371 AbstractCegarLoop]: === Iteration 2 === [free_17Err0EnsuresViolation]=== [2018-01-20 22:21:07,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1908262188, now seen corresponding path program 1 times [2018-01-20 22:21:07,784 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 22:21:07,784 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 22:21:07,786 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:21:07,786 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 22:21:07,786 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:21:07,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 22:21:07,797 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 22:21:07,867 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 22:21:07,867 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 22:21:07,867 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-20 22:21:07,867 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-20 22:21:07,868 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-20 22:21:07,868 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-20 22:21:07,868 INFO L87 Difference]: Start difference. First operand 52 states and 58 transitions. Second operand 5 states. [2018-01-20 22:21:07,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 22:21:07,886 INFO L93 Difference]: Finished difference Result 98 states and 110 transitions. [2018-01-20 22:21:07,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-20 22:21:07,887 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2018-01-20 22:21:07,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 22:21:07,888 INFO L225 Difference]: With dead ends: 98 [2018-01-20 22:21:07,889 INFO L226 Difference]: Without dead ends: 54 [2018-01-20 22:21:07,889 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-20 22:21:07,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-01-20 22:21:07,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-01-20 22:21:07,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-01-20 22:21:07,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2018-01-20 22:21:07,896 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 29 [2018-01-20 22:21:07,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 22:21:07,896 INFO L432 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2018-01-20 22:21:07,896 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-20 22:21:07,897 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2018-01-20 22:21:07,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-01-20 22:21:07,898 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 22:21:07,898 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 22:21:07,898 INFO L371 AbstractCegarLoop]: === Iteration 3 === [free_17Err0EnsuresViolation]=== [2018-01-20 22:21:07,898 INFO L82 PathProgramCache]: Analyzing trace with hash -1407892106, now seen corresponding path program 1 times [2018-01-20 22:21:07,899 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 22:21:07,899 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 22:21:07,901 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:21:07,902 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 22:21:07,902 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:21:07,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 22:21:07,915 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 22:21:07,947 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 22:21:07,947 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 22:21:07,947 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-20 22:21:07,948 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-20 22:21:07,948 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-20 22:21:07,948 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-20 22:21:07,948 INFO L87 Difference]: Start difference. First operand 54 states and 60 transitions. Second operand 4 states. [2018-01-20 22:21:07,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 22:21:07,978 INFO L93 Difference]: Finished difference Result 61 states and 67 transitions. [2018-01-20 22:21:07,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-20 22:21:07,978 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2018-01-20 22:21:07,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 22:21:07,979 INFO L225 Difference]: With dead ends: 61 [2018-01-20 22:21:07,979 INFO L226 Difference]: Without dead ends: 0 [2018-01-20 22:21:07,979 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 22:21:07,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-20 22:21:07,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-20 22:21:07,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-20 22:21:07,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-20 22:21:07,980 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-01-20 22:21:07,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 22:21:07,981 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-20 22:21:07,981 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-20 22:21:07,981 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-20 22:21:07,981 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-20 22:21:07,982 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 22:21:07,982 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 22:21:07,983 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 22:21:07,983 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 22:21:07,983 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 22:21:07,983 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 22:21:07,983 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 22:21:07,983 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == entry_pointErr0EnsuresViolation======== [2018-01-20 22:21:07,983 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 22:21:07,985 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2018-01-20 22:21:07,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-20 22:21:07,985 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 22:21:07,986 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 22:21:07,986 INFO L371 AbstractCegarLoop]: === Iteration 1 === [entry_pointErr0EnsuresViolation]=== [2018-01-20 22:21:07,986 INFO L82 PathProgramCache]: Analyzing trace with hash -320818343, now seen corresponding path program 1 times [2018-01-20 22:21:07,986 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 22:21:07,986 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 22:21:07,987 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:21:07,987 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 22:21:07,987 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 22:21:07,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 22:21:07,994 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 22:21:08,010 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 22:21:08,010 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 22:21:08,011 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-20 22:21:08,011 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-20 22:21:08,011 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-20 22:21:08,011 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-20 22:21:08,011 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 3 states. [2018-01-20 22:21:08,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 22:21:08,076 INFO L93 Difference]: Finished difference Result 125 states and 154 transitions. [2018-01-20 22:21:08,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-20 22:21:08,076 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-01-20 22:21:08,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 22:21:08,077 INFO L225 Difference]: With dead ends: 125 [2018-01-20 22:21:08,077 INFO L226 Difference]: Without dead ends: 0 [2018-01-20 22:21:08,078 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 22:21:08,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-20 22:21:08,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-20 22:21:08,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-20 22:21:08,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-20 22:21:08,078 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-01-20 22:21:08,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 22:21:08,079 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-20 22:21:08,079 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-20 22:21:08,079 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-20 22:21:08,079 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-20 22:21:08,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 10:21:08 BoogieIcfgContainer [2018-01-20 22:21:08,081 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-20 22:21:08,082 INFO L168 Benchmark]: Toolchain (without parser) took 2079.88 ms. Allocated memory was 306.7 MB in the beginning and 474.0 MB in the end (delta: 167.2 MB). Free memory was 264.0 MB in the beginning and 337.2 MB in the end (delta: -73.2 MB). Peak memory consumption was 94.0 MB. Max. memory is 5.3 GB. [2018-01-20 22:21:08,083 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 306.7 MB. Free memory is still 271.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-20 22:21:08,083 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.33 ms. Allocated memory is still 306.7 MB. Free memory was 264.0 MB in the beginning and 250.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 5.3 GB. [2018-01-20 22:21:08,084 INFO L168 Benchmark]: Boogie Preprocessor took 37.48 ms. Allocated memory is still 306.7 MB. Free memory was 250.9 MB in the beginning and 248.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-20 22:21:08,084 INFO L168 Benchmark]: RCFGBuilder took 308.40 ms. Allocated memory is still 306.7 MB. Free memory was 248.9 MB in the beginning and 228.3 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 5.3 GB. [2018-01-20 22:21:08,084 INFO L168 Benchmark]: TraceAbstraction took 1484.60 ms. Allocated memory was 306.7 MB in the beginning and 474.0 MB in the end (delta: 167.2 MB). Free memory was 228.3 MB in the beginning and 337.2 MB in the end (delta: -109.0 MB). Peak memory consumption was 58.3 MB. Max. memory is 5.3 GB. [2018-01-20 22:21:08,085 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 306.7 MB. Free memory is still 271.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 241.33 ms. Allocated memory is still 306.7 MB. Free memory was 264.0 MB in the beginning and 250.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 37.48 ms. Allocated memory is still 306.7 MB. Free memory was 250.9 MB in the beginning and 248.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 308.40 ms. Allocated memory is still 306.7 MB. Free memory was 248.9 MB in the beginning and 228.3 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1484.60 ms. Allocated memory was 306.7 MB in the beginning and 474.0 MB in the end (delta: 167.2 MB). Free memory was 228.3 MB in the beginning and 337.2 MB in the end (delta: -109.0 MB). Peak memory consumption was 58.3 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) * 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: [L1478] CALL entry_point() [L1465] int i; [L1466] int len = 10; VAL [len=10] [L1467] CALL ldv_malloc(sizeof(struct A17*)*len) VAL [\old(size)=40] [L1073] COND TRUE __VERIFIER_nondet_int() [L1074] EXPR, FCALL malloc(size) VAL [\old(size)=40, malloc(size)={42:0}, size=40] [L1074] return malloc(size); VAL [\old(size)=40, \result={42:0}, malloc(size)={42:0}, size=40] - StatisticsResult: Ultimate Automizer benchmark data for error location: ldv_mallocErr0EnsuresViolation CFG has 7 procedures, 65 locations, 7 error locations. UNSAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 56 SDtfs, 37 SDslu, 15 SDs, 0 SdLazy, 25 SolverSat, 20 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=65occurred 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: - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.initErr0EnsuresViolation CFG has 7 procedures, 65 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=65occurred 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 - PositiveResult [Line: 1439]: 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: alloc_17Err0EnsuresViolation CFG has 7 procedures, 65 locations, 7 error locations. SAFE Result, 0.3s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 128 SDtfs, 3 SDslu, 136 SDs, 0 SdLazy, 21 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 2111 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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: [L1478] CALL entry_point() [L1465] int i; [L1466] int len = 10; VAL [len=10] [L1467] CALL, EXPR ldv_malloc(sizeof(struct A17*)*len) VAL [\old(size)=40] [L1073] COND FALSE !(__VERIFIER_nondet_int()) [L1076] RET return 0; VAL [\old(size)=40, \result={0:0}, size=40] [L1467] EXPR ldv_malloc(sizeof(struct A17*)*len) VAL [ldv_malloc(sizeof(struct A17*)*len)={0:0}, len=10] [L1467] struct A17 **array = (struct A17 **)ldv_malloc(sizeof(struct A17*)*len); [L1468] COND TRUE, RET !array VAL [array={0:0}, len=10] [L1478] entry_point() - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0EnsuresViolation CFG has 7 procedures, 65 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=65occurred 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, 19 NumberOfCodeBlocks, 19 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: 1477]: 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, 65 locations, 7 error locations. SAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 56 SDtfs, 32 SDslu, 15 SDs, 0 SdLazy, 25 SolverSat, 16 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=65occurred 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, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 640 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: 1457]: 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: free_17Err0EnsuresViolation CFG has 7 procedures, 65 locations, 7 error locations. SAFE Result, 0.2s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 140 SDtfs, 3 SDslu, 172 SDs, 0 SdLazy, 21 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 3341 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 1464]: 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, 65 locations, 7 error locations. SAFE Result, 0.0s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 56 SDtfs, 33 SDslu, 15 SDs, 0 SdLazy, 25 SolverSat, 18 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=65occurred 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, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 448 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 RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test17_1_false-valid-memtrack.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-20_22-21-08-094.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test17_1_false-valid-memtrack.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-20_22-21-08-094.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test17_1_false-valid-memtrack.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-20_22-21-08-094.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test17_1_false-valid-memtrack.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-20_22-21-08-094.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test17_1_false-valid-memtrack.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-20_22-21-08-094.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test17_1_false-valid-memtrack.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-4-2018-01-20_22-21-08-094.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test17_1_false-valid-memtrack.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-5-2018-01-20_22-21-08-094.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test17_1_false-valid-memtrack.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-6-2018-01-20_22-21-08-094.csv Received shutdown request...