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/cav18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test8_2_false-valid-free.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-26d9e06-m [2018-02-02 10:47:03,969 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 10:47:03,971 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 10:47:03,984 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 10:47:03,984 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 10:47:03,985 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 10:47:03,986 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 10:47:03,988 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 10:47:03,989 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 10:47:03,990 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 10:47:03,991 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 10:47:03,991 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 10:47:03,992 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 10:47:03,993 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 10:47:03,994 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 10:47:03,996 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 10:47:03,997 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 10:47:03,999 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 10:47:04,000 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 10:47:04,001 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 10:47:04,003 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-02 10:47:04,007 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-02 10:47:04,008 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-02 10:47:04,008 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cav18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-02-02 10:47:04,018 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 10:47:04,018 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 10:47:04,019 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 10:47:04,019 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 10:47:04,019 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 10:47:04,020 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 10:47:04,020 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 10:47:04,020 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 10:47:04,020 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 10:47:04,020 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 10:47:04,020 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 10:47:04,020 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 10:47:04,020 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 10:47:04,020 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 10:47:04,020 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 10:47:04,021 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 10:47:04,021 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 10:47:04,021 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 10:47:04,021 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 10:47:04,021 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 10:47:04,021 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 10:47:04,021 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 10:47:04,021 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-02-02 10:47:04,021 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol_NoArrayInterpol [2018-02-02 10:47:04,050 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 10:47:04,060 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 10:47:04,063 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 10:47:04,064 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 10:47:04,064 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 10:47:04,065 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test8_2_false-valid-free.i [2018-02-02 10:47:04,213 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 10:47:04,215 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 10:47:04,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 10:47:04,216 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 10:47:04,222 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 10:47:04,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 10:47:04" (1/1) ... [2018-02-02 10:47:04,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6eabcc5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:47:04, skipping insertion in model container [2018-02-02 10:47:04,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 10:47:04" (1/1) ... [2018-02-02 10:47:04,245 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 10:47:04,291 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 10:47:04,385 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 10:47:04,396 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 10:47:04,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:47:04 WrapperNode [2018-02-02 10:47:04,401 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 10:47:04,402 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 10:47:04,402 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 10:47:04,402 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 10:47:04,416 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:47:04" (1/1) ... [2018-02-02 10:47:04,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:47:04" (1/1) ... [2018-02-02 10:47:04,426 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:47:04" (1/1) ... [2018-02-02 10:47:04,426 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:47:04" (1/1) ... [2018-02-02 10:47:04,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:47:04" (1/1) ... [2018-02-02 10:47:04,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:47:04" (1/1) ... [2018-02-02 10:47:04,431 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:47:04" (1/1) ... [2018-02-02 10:47:04,432 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 10:47:04,432 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 10:47:04,432 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 10:47:04,432 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 10:47:04,433 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:47:04" (1/1) ... No working directory specified, using /home/ultimate/work/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 [2018-02-02 10:47:04,479 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 10:47:04,479 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 10:47:04,479 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-02-02 10:47:04,479 INFO L136 BoogieDeclarations]: Found implementation of procedure alloc_8 [2018-02-02 10:47:04,479 INFO L136 BoogieDeclarations]: Found implementation of procedure free_8 [2018-02-02 10:47:04,479 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-02-02 10:47:04,479 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 10:47:04,480 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 10:47:04,480 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 10:47:04,480 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 10:47:04,480 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-02 10:47:04,480 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-02 10:47:04,480 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-02 10:47:04,480 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-02-02 10:47:04,480 INFO L128 BoogieDeclarations]: Found specification of procedure alloc_8 [2018-02-02 10:47:04,480 INFO L128 BoogieDeclarations]: Found specification of procedure free_8 [2018-02-02 10:47:04,480 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-02-02 10:47:04,481 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 10:47:04,481 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 10:47:04,481 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 10:47:04,615 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 10:47:04,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 10:47:04 BoogieIcfgContainer [2018-02-02 10:47:04,616 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 10:47:04,616 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 10:47:04,616 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 10:47:04,618 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 10:47:04,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 10:47:04" (1/3) ... [2018-02-02 10:47:04,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@776b45b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 10:47:04, skipping insertion in model container [2018-02-02 10:47:04,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:47:04" (2/3) ... [2018-02-02 10:47:04,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@776b45b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 10:47:04, skipping insertion in model container [2018-02-02 10:47:04,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 10:47:04" (3/3) ... [2018-02-02 10:47:04,621 INFO L107 eAbstractionObserver]: Analyzing ICFG memleaks_test8_2_false-valid-free.i [2018-02-02 10:47:04,629 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-02 10:47:04,635 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-02-02 10:47:04,697 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 10:47:04,697 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 10:47:04,697 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-02-02 10:47:04,697 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-02 10:47:04,697 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 10:47:04,698 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 10:47:04,698 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 10:47:04,698 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 10:47:04,699 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 10:47:04,710 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-02-02 10:47:04,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-02-02 10:47:04,721 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:47:04,722 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:47:04,722 INFO L371 AbstractCegarLoop]: === Iteration 1 === [free_8Err0RequiresViolation, free_8Err1RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-02 10:47:04,727 INFO L82 PathProgramCache]: Analyzing trace with hash -936099957, now seen corresponding path program 1 times [2018-02-02 10:47:04,778 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:47:04,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:47:04,832 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:47:04,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:47:04,921 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:47:04,921 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 10:47:04,923 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:47:04,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:47:04,924 INFO L182 omatonBuilderFactory]: Interpolants [36#true, 37#false, 38#(= 0 |ldv_malloc_#res.offset|), 39#(= 0 |alloc_8_#t~ret2.offset|), 40#(= ~a8.offset 0)] [2018-02-02 10:47:04,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:47:04,925 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 10:47:04,935 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 10:47:04,935 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 10:47:04,937 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 5 states. [2018-02-02 10:47:05,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:47:05,002 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2018-02-02 10:47:05,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 10:47:05,004 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-02-02 10:47:05,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:47:05,073 INFO L225 Difference]: With dead ends: 42 [2018-02-02 10:47:05,073 INFO L226 Difference]: Without dead ends: 39 [2018-02-02 10:47:05,076 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-02-02 10:47:05,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-02-02 10:47:05,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2018-02-02 10:47:05,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-02-02 10:47:05,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2018-02-02 10:47:05,105 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 18 [2018-02-02 10:47:05,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:47:05,105 INFO L432 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2018-02-02 10:47:05,106 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 10:47:05,106 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2018-02-02 10:47:05,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-02-02 10:47:05,106 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:47:05,106 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:47:05,106 INFO L371 AbstractCegarLoop]: === Iteration 2 === [free_8Err0RequiresViolation, free_8Err1RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-02 10:47:05,106 INFO L82 PathProgramCache]: Analyzing trace with hash -936099956, now seen corresponding path program 1 times [2018-02-02 10:47:05,108 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:47:05,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:47:05,121 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:47:05,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:47:05,168 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:47:05,168 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 10:47:05,169 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:47:05,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:47:05,169 INFO L182 omatonBuilderFactory]: Interpolants [128#(= 0 |alloc_8_#t~ret2.base|), 129#(= 0 ~a8.base), 125#true, 126#false, 127#(= 0 |ldv_malloc_#res.base|)] [2018-02-02 10:47:05,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:47:05,171 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 10:47:05,171 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 10:47:05,171 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 10:47:05,171 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand 5 states. [2018-02-02 10:47:05,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:47:05,219 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2018-02-02 10:47:05,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 10:47:05,219 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-02-02 10:47:05,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:47:05,220 INFO L225 Difference]: With dead ends: 44 [2018-02-02 10:47:05,220 INFO L226 Difference]: Without dead ends: 44 [2018-02-02 10:47:05,220 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-02-02 10:47:05,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-02-02 10:47:05,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 43. [2018-02-02 10:47:05,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-02-02 10:47:05,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 51 transitions. [2018-02-02 10:47:05,226 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 51 transitions. Word has length 18 [2018-02-02 10:47:05,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:47:05,227 INFO L432 AbstractCegarLoop]: Abstraction has 43 states and 51 transitions. [2018-02-02 10:47:05,227 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 10:47:05,227 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2018-02-02 10:47:05,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-02 10:47:05,227 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:47:05,227 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:47:05,227 INFO L371 AbstractCegarLoop]: === Iteration 3 === [free_8Err0RequiresViolation, free_8Err1RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-02 10:47:05,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1003269641, now seen corresponding path program 1 times [2018-02-02 10:47:05,229 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:47:05,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:47:05,244 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:47:05,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:47:05,290 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:47:05,290 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 10:47:05,290 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:47:05,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:47:05,290 INFO L182 omatonBuilderFactory]: Interpolants [224#(= 0 |ldv_malloc_#res.offset|), 225#(= 0 |alloc_8_#t~ret2.offset|), 226#(= ~a8.offset 0), 221#true, 222#false, 223#(= 0 |ldv_malloc_#t~malloc1.offset|)] [2018-02-02 10:47:05,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:47:05,291 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-02 10:47:05,291 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-02 10:47:05,291 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-02 10:47:05,291 INFO L87 Difference]: Start difference. First operand 43 states and 51 transitions. Second operand 6 states. [2018-02-02 10:47:05,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:47:05,335 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2018-02-02 10:47:05,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-02 10:47:05,335 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2018-02-02 10:47:05,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:47:05,336 INFO L225 Difference]: With dead ends: 42 [2018-02-02 10:47:05,336 INFO L226 Difference]: Without dead ends: 42 [2018-02-02 10:47:05,337 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2018-02-02 10:47:05,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-02-02 10:47:05,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2018-02-02 10:47:05,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-02-02 10:47:05,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2018-02-02 10:47:05,342 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 20 [2018-02-02 10:47:05,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:47:05,343 INFO L432 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2018-02-02 10:47:05,343 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-02 10:47:05,343 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2018-02-02 10:47:05,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-02 10:47:05,344 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:47:05,344 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:47:05,344 INFO L371 AbstractCegarLoop]: === Iteration 4 === [free_8Err0RequiresViolation, free_8Err1RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-02 10:47:05,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1003269642, now seen corresponding path program 1 times [2018-02-02 10:47:05,345 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:47:05,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:47:05,358 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:47:05,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:47:05,406 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:47:05,406 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 10:47:05,406 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:47:05,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:47:05,407 INFO L182 omatonBuilderFactory]: Interpolants [320#(= 1 (select |#valid| |ldv_malloc_#res.base|)), 321#(= 1 (select |#valid| |alloc_8_#t~ret2.base|)), 322#(= 1 (select |#valid| ~a8.base)), 317#true, 318#false, 319#(= 1 (select |#valid| |ldv_malloc_#t~malloc1.base|))] [2018-02-02 10:47:05,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:47:05,409 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-02 10:47:05,409 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-02 10:47:05,410 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-02 10:47:05,410 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand 6 states. [2018-02-02 10:47:05,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:47:05,509 INFO L93 Difference]: Finished difference Result 48 states and 57 transitions. [2018-02-02 10:47:05,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 10:47:05,509 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2018-02-02 10:47:05,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:47:05,510 INFO L225 Difference]: With dead ends: 48 [2018-02-02 10:47:05,510 INFO L226 Difference]: Without dead ends: 48 [2018-02-02 10:47:05,511 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-02-02 10:47:05,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-02-02 10:47:05,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 46. [2018-02-02 10:47:05,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-02-02 10:47:05,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2018-02-02 10:47:05,516 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 55 transitions. Word has length 20 [2018-02-02 10:47:05,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:47:05,516 INFO L432 AbstractCegarLoop]: Abstraction has 46 states and 55 transitions. [2018-02-02 10:47:05,517 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-02 10:47:05,517 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2018-02-02 10:47:05,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-02-02 10:47:05,517 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:47:05,518 INFO L351 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:47:05,518 INFO L371 AbstractCegarLoop]: === Iteration 5 === [free_8Err0RequiresViolation, free_8Err1RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-02 10:47:05,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1026214949, now seen corresponding path program 1 times [2018-02-02 10:47:05,519 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:47:05,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-02 10:47:05,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-02 10:47:05,566 INFO L410 BasicCegarLoop]: Counterexample might be feasible [2018-02-02 10:47:05,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.02 10:47:05 BoogieIcfgContainer [2018-02-02 10:47:05,587 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-02 10:47:05,588 INFO L168 Benchmark]: Toolchain (without parser) took 1373.93 ms. Allocated memory was 403.7 MB in the beginning and 610.3 MB in the end (delta: 206.6 MB). Free memory was 360.6 MB in the beginning and 526.1 MB in the end (delta: -165.5 MB). Peak memory consumption was 41.1 MB. Max. memory is 5.3 GB. [2018-02-02 10:47:05,589 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 403.7 MB. Free memory is still 367.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 10:47:05,589 INFO L168 Benchmark]: CACSL2BoogieTranslator took 185.56 ms. Allocated memory is still 403.7 MB. Free memory was 360.6 MB in the beginning and 347.4 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. [2018-02-02 10:47:05,589 INFO L168 Benchmark]: Boogie Preprocessor took 30.25 ms. Allocated memory is still 403.7 MB. Free memory was 347.4 MB in the beginning and 346.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-02 10:47:05,589 INFO L168 Benchmark]: RCFGBuilder took 183.91 ms. Allocated memory is still 403.7 MB. Free memory was 346.1 MB in the beginning and 332.0 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 5.3 GB. [2018-02-02 10:47:05,590 INFO L168 Benchmark]: TraceAbstraction took 970.96 ms. Allocated memory was 403.7 MB in the beginning and 610.3 MB in the end (delta: 206.6 MB). Free memory was 332.0 MB in the beginning and 526.1 MB in the end (delta: -194.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 5.3 GB. [2018-02-02 10:47:05,591 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 403.7 MB. Free memory is still 367.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 185.56 ms. Allocated memory is still 403.7 MB. Free memory was 360.6 MB in the beginning and 347.4 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 30.25 ms. Allocated memory is still 403.7 MB. Free memory was 347.4 MB in the beginning and 346.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 183.91 ms. Allocated memory is still 403.7 MB. Free memory was 346.1 MB in the beginning and 332.0 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 970.96 ms. Allocated memory was 403.7 MB in the beginning and 610.3 MB in the end (delta: 206.6 MB). Free memory was 332.0 MB in the beginning and 526.1 MB in the end (delta: -194.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L1434] int *a8; VAL [\old(a8)=0, \old(a8)=0, a8={0:0}] [L1453] CALL entry_point() VAL [\old(a8)=0, \old(a8)=0, a8={0:0}] [L1446] CALL alloc_8() VAL [\old(a8)=0, \old(a8)=0, a8={0:0}] [L1437] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(a8)=0, \old(a8)=0, \old(size)=4, a8={0:0}] [L1073] COND TRUE __VERIFIER_nondet_int() [L1074] EXPR, FCALL malloc(size) VAL [\old(a8)=0, \old(a8)=0, \old(size)=4, a8={0:0}, malloc(size)={7:0}, size=4] [L1074] RET return malloc(size); VAL [\old(a8)=0, \old(a8)=0, \old(size)=4, \result={7:0}, a8={0:0}, malloc(size)={7:0}, size=4] [L1437] EXPR ldv_malloc(sizeof(int)) VAL [\old(a8)=0, \old(a8)=0, a8={0:0}, ldv_malloc(sizeof(int))={7:0}] [L1437] RET a8 = (int *)ldv_malloc(sizeof(int)) [L1446] alloc_8() VAL [\old(a8)=0, \old(a8)=0, a8={7:0}] [L1447] CALL free_8() VAL [\old(a8)=0, \old(a8)=0, a8={7:0}] [L1441] COND TRUE \read(*a8) VAL [\old(a8)=0, \old(a8)=0, a8={7:0}] [L1441] FCALL free(a8) VAL [\old(a8)=0, \old(a8)=0, a8={7:0}] [L1448] CALL free_8() VAL [\old(a8)=0, \old(a8)=0, a8={7:0}] [L1441] COND TRUE \read(*a8) VAL [\old(a8)=0, \old(a8)=0, a8={7:0}] [L1441] FCALL free(a8) VAL [\old(a8)=0, \old(a8)=0, a8={7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 33 locations, 3 error locations. UNSAFE Result, 0.8s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 130 SDtfs, 84 SDslu, 316 SDs, 0 SdLazy, 116 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=4, 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, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 2870 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test8_2_false-valid-free.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_10-47-05-597.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test8_2_false-valid-free.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-02_10-47-05-597.csv Received shutdown request...