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/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/list-ext-properties/test-0158_1_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c17473d-m [2018-02-04 18:38:13,359 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 18:38:13,361 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 18:38:13,383 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 18:38:13,383 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 18:38:13,384 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 18:38:13,385 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 18:38:13,387 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 18:38:13,388 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 18:38:13,389 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 18:38:13,390 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 18:38:13,390 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 18:38:13,391 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 18:38:13,392 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 18:38:13,393 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 18:38:13,394 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 18:38:13,396 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 18:38:13,398 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 18:38:13,398 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 18:38:13,400 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 18:38:13,401 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-04 18:38:13,406 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-02-04 18:38:13,416 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 18:38:13,416 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 18:38:13,417 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 18:38:13,417 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 18:38:13,418 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 18:38:13,418 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 18:38:13,418 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 18:38:13,418 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 18:38:13,418 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 18:38:13,418 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 18:38:13,419 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 18:38:13,419 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 18:38:13,419 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 18:38:13,419 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 18:38:13,419 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 18:38:13,419 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 18:38:13,420 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 18:38:13,420 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 18:38:13,420 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 18:38:13,420 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 18:38:13,420 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 18:38:13,420 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-04 18:38:13,420 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-04 18:38:13,421 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-02-04 18:38:13,450 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 18:38:13,461 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 18:38:13,466 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 18:38:13,467 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 18:38:13,468 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 18:38:13,468 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/test-0158_1_false-valid-memtrack_true-termination.i [2018-02-04 18:38:13,599 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 18:38:13,600 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 18:38:13,600 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 18:38:13,600 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 18:38:13,605 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 18:38:13,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 06:38:13" (1/1) ... [2018-02-04 18:38:13,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e643503 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 06:38:13, skipping insertion in model container [2018-02-04 18:38:13,608 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 06:38:13" (1/1) ... [2018-02-04 18:38:13,620 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 18:38:13,646 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 18:38:13,734 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 18:38:13,744 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 18:38:13,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 06:38:13 WrapperNode [2018-02-04 18:38:13,751 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 18:38:13,751 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 18:38:13,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 18:38:13,752 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 18:38:13,765 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 06:38:13" (1/1) ... [2018-02-04 18:38:13,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 06:38:13" (1/1) ... [2018-02-04 18:38:13,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 06:38:13" (1/1) ... [2018-02-04 18:38:13,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 06:38:13" (1/1) ... [2018-02-04 18:38:13,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 06:38:13" (1/1) ... [2018-02-04 18:38:13,777 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 06:38:13" (1/1) ... [2018-02-04 18:38:13,778 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 06:38:13" (1/1) ... [2018-02-04 18:38:13,779 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 18:38:13,780 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 18:38:13,780 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 18:38:13,780 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 18:38:13,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 06:38:13" (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 [2018-02-04 18:38:13,824 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 18:38:13,824 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 18:38:13,824 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 18:38:13,824 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-04 18:38:13,824 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-04 18:38:13,824 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 18:38:13,824 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 18:38:13,824 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 18:38:13,824 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 18:38:13,825 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 18:38:13,825 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 18:38:13,825 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 18:38:13,825 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 18:38:13,825 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 18:38:13,825 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 18:38:13,958 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 18:38:13,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 06:38:13 BoogieIcfgContainer [2018-02-04 18:38:13,959 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 18:38:13,959 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 18:38:13,959 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 18:38:13,962 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 18:38:13,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 06:38:13" (1/3) ... [2018-02-04 18:38:13,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c6ed810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 06:38:13, skipping insertion in model container [2018-02-04 18:38:13,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 06:38:13" (2/3) ... [2018-02-04 18:38:13,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c6ed810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 06:38:13, skipping insertion in model container [2018-02-04 18:38:13,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 06:38:13" (3/3) ... [2018-02-04 18:38:13,965 INFO L107 eAbstractionObserver]: Analyzing ICFG test-0158_1_false-valid-memtrack_true-termination.i [2018-02-04 18:38:13,971 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-04 18:38:13,978 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-02-04 18:38:14,011 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 18:38:14,011 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 18:38:14,012 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-04 18:38:14,012 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-04 18:38:14,012 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 18:38:14,012 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 18:38:14,012 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 18:38:14,012 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 18:38:14,013 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 18:38:14,026 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-02-04 18:38:14,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-04 18:38:14,034 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:38:14,035 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:38:14,035 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr9RequiresViolation, mainErr8RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr10EnsuresViolation]=== [2018-02-04 18:38:14,040 INFO L82 PathProgramCache]: Analyzing trace with hash -746768066, now seen corresponding path program 1 times [2018-02-04 18:38:14,041 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:38:14,042 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:38:14,082 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:38:14,082 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:38:14,082 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:38:14,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:38:14,122 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:38:14,135 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 18:38:14,136 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 18:38:14,136 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 18:38:14,137 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:38:14,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:38:14,169 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 18:38:14,199 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 18:38:14,200 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:38:14,205 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:38:14,205 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-02-04 18:38:14,223 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-02-04 18:38:14,224 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:38:14,230 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:38:14,230 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2018-02-04 18:38:14,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:38:14,247 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 18:38:14,247 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-04 18:38:14,249 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 18:38:14,256 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 18:38:14,257 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 18:38:14,258 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 3 states. [2018-02-04 18:38:14,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:38:14,374 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2018-02-04 18:38:14,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 18:38:14,375 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-02-04 18:38:14,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:38:14,382 INFO L225 Difference]: With dead ends: 28 [2018-02-04 18:38:14,383 INFO L226 Difference]: Without dead ends: 25 [2018-02-04 18:38:14,384 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 18:38:14,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-02-04 18:38:14,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-02-04 18:38:14,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-02-04 18:38:14,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2018-02-04 18:38:14,406 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 8 [2018-02-04 18:38:14,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:38:14,406 INFO L432 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2018-02-04 18:38:14,406 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 18:38:14,407 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2018-02-04 18:38:14,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-04 18:38:14,407 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:38:14,407 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:38:14,407 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr9RequiresViolation, mainErr8RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr10EnsuresViolation]=== [2018-02-04 18:38:14,407 INFO L82 PathProgramCache]: Analyzing trace with hash -746768065, now seen corresponding path program 1 times [2018-02-04 18:38:14,407 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:38:14,407 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:38:14,408 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:38:14,408 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:38:14,409 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:38:14,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:38:14,421 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:38:14,427 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 18:38:14,427 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 18:38:14,427 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 18:38:14,428 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:38:14,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:38:14,445 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 18:38:14,464 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 18:38:14,465 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:38:14,480 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 18:38:14,480 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:38:14,490 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:38:14,490 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-02-04 18:38:14,507 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:38:14,511 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:38:14,514 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 12 [2018-02-04 18:38:14,515 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:38:14,526 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:38:14,527 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-02-04 18:38:14,527 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:38:14,536 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:38:14,536 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:14 [2018-02-04 18:38:14,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:38:14,550 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 18:38:14,550 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 18:38:14,551 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 18:38:14,551 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 18:38:14,551 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 18:38:14,552 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 4 states. [2018-02-04 18:38:14,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:38:14,605 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2018-02-04 18:38:14,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 18:38:14,605 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-02-04 18:38:14,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:38:14,606 INFO L225 Difference]: With dead ends: 20 [2018-02-04 18:38:14,606 INFO L226 Difference]: Without dead ends: 20 [2018-02-04 18:38:14,607 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 18:38:14,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-02-04 18:38:14,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-02-04 18:38:14,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-02-04 18:38:14,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2018-02-04 18:38:14,609 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 8 [2018-02-04 18:38:14,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:38:14,610 INFO L432 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2018-02-04 18:38:14,610 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 18:38:14,610 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2018-02-04 18:38:14,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-02-04 18:38:14,610 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:38:14,611 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:38:14,611 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr9RequiresViolation, mainErr8RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr10EnsuresViolation]=== [2018-02-04 18:38:14,611 INFO L82 PathProgramCache]: Analyzing trace with hash -2020888165, now seen corresponding path program 1 times [2018-02-04 18:38:14,611 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:38:14,611 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:38:14,612 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:38:14,612 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:38:14,612 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:38:14,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-04 18:38:14,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-04 18:38:14,659 INFO L410 BasicCegarLoop]: Counterexample might be feasible [2018-02-04 18:38:14,666 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-02-04 18:38:14,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.02 06:38:14 BoogieIcfgContainer [2018-02-04 18:38:14,677 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-04 18:38:14,678 INFO L168 Benchmark]: Toolchain (without parser) took 1078.54 ms. Allocated memory was 397.9 MB in the beginning and 601.9 MB in the end (delta: 203.9 MB). Free memory was 356.1 MB in the beginning and 539.8 MB in the end (delta: -183.6 MB). Peak memory consumption was 20.3 MB. Max. memory is 5.3 GB. [2018-02-04 18:38:14,679 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 397.9 MB. Free memory is still 361.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 18:38:14,679 INFO L168 Benchmark]: CACSL2BoogieTranslator took 150.91 ms. Allocated memory is still 397.9 MB. Free memory was 354.8 MB in the beginning and 345.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 5.3 GB. [2018-02-04 18:38:14,680 INFO L168 Benchmark]: Boogie Preprocessor took 28.24 ms. Allocated memory is still 397.9 MB. Free memory was 345.4 MB in the beginning and 342.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-04 18:38:14,680 INFO L168 Benchmark]: RCFGBuilder took 178.95 ms. Allocated memory is still 397.9 MB. Free memory was 342.8 MB in the beginning and 326.1 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 5.3 GB. [2018-02-04 18:38:14,681 INFO L168 Benchmark]: TraceAbstraction took 717.67 ms. Allocated memory was 397.9 MB in the beginning and 601.9 MB in the end (delta: 203.9 MB). Free memory was 326.1 MB in the beginning and 539.8 MB in the end (delta: -213.7 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 18:38:14,682 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 397.9 MB. Free memory is still 361.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 150.91 ms. Allocated memory is still 397.9 MB. Free memory was 354.8 MB in the beginning and 345.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 28.24 ms. Allocated memory is still 397.9 MB. Free memory was 345.4 MB in the beginning and 342.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 178.95 ms. Allocated memory is still 397.9 MB. Free memory was 342.8 MB in the beginning and 326.1 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 717.67 ms. Allocated memory was 397.9 MB in the beginning and 601.9 MB in the end (delta: 203.9 MB). Free memory was 326.1 MB in the beginning and 539.8 MB in the end (delta: -213.7 MB). There was no memory consumed. 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) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 620]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L622-L629] FCALL union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; VAL [data={39:0}] [L630] EXPR, FCALL malloc(37U) VAL [data={39:0}, malloc(37U)={44:0}] [L630] FCALL data.p0 = malloc(37U) VAL [data={39:0}, malloc(37U)={44:0}] [L631] COND FALSE !(__VERIFIER_nondet_int()) [L634] FCALL data.str.p2 = 30 VAL [data={39:0}, malloc(37U)={44:0}] [L636] EXPR, FCALL data.str.p2 VAL [data={39:0}, data.str.p2=30, malloc(37U)={44:0}] [L636] COND FALSE !(25 > data.str.p2) [L639] return 0; VAL [\result=0, data={39:0}, malloc(37U)={44:0}] [L639] return 0; VAL [\result=0, malloc(37U)={44:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 33 locations, 11 error locations. UNSAFE Result, 0.6s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 31 SDtfs, 38 SDslu, 16 SDs, 0 SdLazy, 30 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 14 ConstructedInterpolants, 1 QuantifiedInterpolants, 343 SizeOfPredicates, 2 NumberOfNonLiveVariables, 92 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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/test-0158_1_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_18-38-14-689.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0158_1_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-04_18-38-14-689.csv Received shutdown request...