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_test7_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-26d9e06-m [2018-02-02 10:47:53,462 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 10:47:53,463 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 10:47:53,472 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 10:47:53,472 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 10:47:53,473 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 10:47:53,474 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 10:47:53,475 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 10:47:53,476 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 10:47:53,476 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 10:47:53,477 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 10:47:53,477 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 10:47:53,477 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 10:47:53,478 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 10:47:53,478 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 10:47:53,479 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 10:47:53,480 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 10:47:53,481 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 10:47:53,482 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 10:47:53,483 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 10:47:53,487 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-02 10:47:53,490 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-02 10:47:53,490 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-02 10:47:53,491 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 10:47:53,500 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 10:47:53,501 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 10:47:53,502 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 10:47:53,502 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 10:47:53,502 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 10:47:53,502 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 10:47:53,502 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 10:47:53,503 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 10:47:53,503 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 10:47:53,503 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 10:47:53,503 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 10:47:53,503 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 10:47:53,503 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 10:47:53,503 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 10:47:53,503 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 10:47:53,504 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 10:47:53,504 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 10:47:53,504 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 10:47:53,504 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 10:47:53,504 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 10:47:53,504 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 10:47:53,505 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 10:47:53,505 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-02-02 10:47:53,505 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol_NoArrayInterpol [2018-02-02 10:47:53,535 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 10:47:53,548 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 10:47:53,551 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 10:47:53,553 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 10:47:53,553 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 10:47:53,553 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test7_false-valid-memtrack_true-termination.i [2018-02-02 10:47:53,702 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 10:47:53,703 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 10:47:53,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 10:47:53,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 10:47:53,710 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 10:47:53,711 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 10:47:53" (1/1) ... [2018-02-02 10:47:53,714 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 10:47:53, skipping insertion in model container [2018-02-02 10:47:53,714 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 10:47:53" (1/1) ... [2018-02-02 10:47:53,730 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 10:47:53,767 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 10:47:53,863 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 10:47:53,875 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 10:47:53,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:47:53 WrapperNode [2018-02-02 10:47:53,881 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 10:47:53,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 10:47:53,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 10:47:53,882 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 10:47:53,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:47:53" (1/1) ... [2018-02-02 10:47:53,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:47:53" (1/1) ... [2018-02-02 10:47:53,900 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:47:53" (1/1) ... [2018-02-02 10:47:53,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:47:53" (1/1) ... [2018-02-02 10:47:53,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:47:53" (1/1) ... [2018-02-02 10:47:53,905 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:47:53" (1/1) ... [2018-02-02 10:47:53,907 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:47:53" (1/1) ... [2018-02-02 10:47:53,908 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 10:47:53,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 10:47:53,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 10:47:53,909 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 10:47:53,910 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:47:53" (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 10:47:53,946 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 10:47:53,946 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 10:47:53,946 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-02-02 10:47:53,946 INFO L136 BoogieDeclarations]: Found implementation of procedure f6 [2018-02-02 10:47:53,946 INFO L136 BoogieDeclarations]: Found implementation of procedure g6 [2018-02-02 10:47:53,947 INFO L136 BoogieDeclarations]: Found implementation of procedure probe1_6 [2018-02-02 10:47:53,947 INFO L136 BoogieDeclarations]: Found implementation of procedure disconnect_2_6 [2018-02-02 10:47:53,947 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-02-02 10:47:53,947 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 10:47:53,947 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-02 10:47:53,947 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-02 10:47:53,947 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 10:47:53,947 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 10:47:53,947 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 10:47:53,947 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-02 10:47:53,947 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-02 10:47:53,947 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-02 10:47:53,947 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-02-02 10:47:53,948 INFO L128 BoogieDeclarations]: Found specification of procedure f6 [2018-02-02 10:47:53,948 INFO L128 BoogieDeclarations]: Found specification of procedure g6 [2018-02-02 10:47:53,948 INFO L128 BoogieDeclarations]: Found specification of procedure probe1_6 [2018-02-02 10:47:53,948 INFO L128 BoogieDeclarations]: Found specification of procedure disconnect_2_6 [2018-02-02 10:47:53,948 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-02-02 10:47:53,948 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 10:47:53,948 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 10:47:53,948 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 10:47:54,106 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 10:47:54,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 10:47:54 BoogieIcfgContainer [2018-02-02 10:47:54,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 10:47:54,107 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 10:47:54,107 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 10:47:54,109 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 10:47:54,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 10:47:53" (1/3) ... [2018-02-02 10:47:54,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@410caf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 10:47:54, skipping insertion in model container [2018-02-02 10:47:54,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:47:53" (2/3) ... [2018-02-02 10:47:54,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@410caf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 10:47:54, skipping insertion in model container [2018-02-02 10:47:54,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 10:47:54" (3/3) ... [2018-02-02 10:47:54,112 INFO L107 eAbstractionObserver]: Analyzing ICFG memleaks_test7_false-valid-memtrack_true-termination.i [2018-02-02 10:47:54,118 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-02 10:47:54,123 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-02-02 10:47:54,149 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 10:47:54,149 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 10:47:54,150 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-02-02 10:47:54,150 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-02 10:47:54,150 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 10:47:54,150 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 10:47:54,150 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 10:47:54,150 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 10:47:54,151 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 10:47:54,163 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2018-02-02 10:47:54,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-02-02 10:47:54,173 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:47:54,174 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, 1, 1, 1] [2018-02-02 10:47:54,174 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation, probe1_6Err1RequiresViolation, probe1_6Err2RequiresViolation, probe1_6Err3RequiresViolation, probe1_6Err0RequiresViolation]=== [2018-02-02 10:47:54,178 INFO L82 PathProgramCache]: Analyzing trace with hash 2071706780, now seen corresponding path program 1 times [2018-02-02 10:47:54,222 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:47:54,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:47:54,265 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:47:54,378 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 10:47:54,380 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:47:54,381 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 10:47:54,382 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:47:54,382 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 10:47:54,383 INFO L182 omatonBuilderFactory]: Interpolants [58#true, 59#false, 60#(and (= 0 |ldv_malloc_#res.offset|) (= 0 |ldv_malloc_#res.base|)), 61#(and (= 0 |probe1_6_#t~ret4.base|) (= 0 |probe1_6_#t~ret4.offset|)), 62#(and (= probe1_6_~p~0.base 0) (= 0 probe1_6_~p~0.offset))] [2018-02-02 10:47:54,383 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 10:47:54,384 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 10:47:54,440 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 10:47:54,440 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 10:47:54,442 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 5 states. [2018-02-02 10:47:54,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:47:54,508 INFO L93 Difference]: Finished difference Result 61 states and 65 transitions. [2018-02-02 10:47:54,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 10:47:54,509 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2018-02-02 10:47:54,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:47:54,518 INFO L225 Difference]: With dead ends: 61 [2018-02-02 10:47:54,518 INFO L226 Difference]: Without dead ends: 58 [2018-02-02 10:47:54,519 INFO L554 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 [2018-02-02 10:47:54,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-02-02 10:47:54,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2018-02-02 10:47:54,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-02-02 10:47:54,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2018-02-02 10:47:54,546 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 23 [2018-02-02 10:47:54,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:47:54,546 INFO L432 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2018-02-02 10:47:54,546 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 10:47:54,546 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2018-02-02 10:47:54,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-02-02 10:47:54,547 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:47:54,547 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, 1, 1, 1, 1, 1] [2018-02-02 10:47:54,547 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation, probe1_6Err1RequiresViolation, probe1_6Err2RequiresViolation, probe1_6Err3RequiresViolation, probe1_6Err0RequiresViolation]=== [2018-02-02 10:47:54,547 INFO L82 PathProgramCache]: Analyzing trace with hash -776458562, now seen corresponding path program 1 times [2018-02-02 10:47:54,549 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:47:54,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:47:54,564 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:47:54,615 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 10:47:54,616 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:47:54,616 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 10:47:54,616 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:47:54,616 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 10:47:54,617 INFO L182 omatonBuilderFactory]: Interpolants [180#true, 181#false, 182#(= 0 |ldv_malloc_#t~malloc1.offset|), 183#(= 0 |ldv_malloc_#res.offset|), 184#(= 0 |probe1_6_#t~ret4.offset|), 185#(= 0 probe1_6_~p~0.offset)] [2018-02-02 10:47:54,617 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 10:47:54,618 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-02 10:47:54,618 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-02 10:47:54,618 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-02 10:47:54,619 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand 6 states. [2018-02-02 10:47:54,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:47:54,653 INFO L93 Difference]: Finished difference Result 55 states and 59 transitions. [2018-02-02 10:47:54,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-02 10:47:54,654 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-02-02 10:47:54,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:47:54,656 INFO L225 Difference]: With dead ends: 55 [2018-02-02 10:47:54,656 INFO L226 Difference]: Without dead ends: 55 [2018-02-02 10:47:54,656 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 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 10:47:54,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-02-02 10:47:54,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2018-02-02 10:47:54,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-02-02 10:47:54,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2018-02-02 10:47:54,662 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 25 [2018-02-02 10:47:54,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:47:54,662 INFO L432 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2018-02-02 10:47:54,662 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-02 10:47:54,662 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2018-02-02 10:47:54,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-02-02 10:47:54,663 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:47:54,663 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, 1, 1, 1, 1, 1] [2018-02-02 10:47:54,663 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr0EnsuresViolation, probe1_6Err1RequiresViolation, probe1_6Err2RequiresViolation, probe1_6Err3RequiresViolation, probe1_6Err0RequiresViolation]=== [2018-02-02 10:47:54,663 INFO L82 PathProgramCache]: Analyzing trace with hash -776458561, now seen corresponding path program 1 times [2018-02-02 10:47:54,664 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:47:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:47:54,679 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:47:54,722 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 10:47:54,722 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:47:54,722 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 10:47:54,723 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:47:54,723 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 10:47:54,723 INFO L182 omatonBuilderFactory]: Interpolants [298#true, 299#false, 300#(= 1 (select |#valid| |ldv_malloc_#t~malloc1.base|)), 301#(= 1 (select |#valid| |ldv_malloc_#res.base|)), 302#(= 1 (select |#valid| |probe1_6_#t~ret4.base|)), 303#(= 1 (select |#valid| probe1_6_~p~0.base))] [2018-02-02 10:47:54,723 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 10:47:54,723 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-02 10:47:54,724 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-02 10:47:54,724 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-02 10:47:54,724 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand 6 states. [2018-02-02 10:47:54,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:47:54,796 INFO L93 Difference]: Finished difference Result 56 states and 60 transitions. [2018-02-02 10:47:54,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 10:47:54,797 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-02-02 10:47:54,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:47:54,798 INFO L225 Difference]: With dead ends: 56 [2018-02-02 10:47:54,798 INFO L226 Difference]: Without dead ends: 56 [2018-02-02 10:47:54,798 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 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 10:47:54,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-02-02 10:47:54,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2018-02-02 10:47:54,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-02-02 10:47:54,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2018-02-02 10:47:54,803 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 25 [2018-02-02 10:47:54,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:47:54,804 INFO L432 AbstractCegarLoop]: Abstraction has 54 states and 58 transitions. [2018-02-02 10:47:54,804 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-02 10:47:54,804 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2018-02-02 10:47:54,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-02-02 10:47:54,804 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:47:54,805 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, 1, 1, 1, 1, 1] [2018-02-02 10:47:54,805 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr0EnsuresViolation, probe1_6Err1RequiresViolation, probe1_6Err2RequiresViolation, probe1_6Err3RequiresViolation, probe1_6Err0RequiresViolation]=== [2018-02-02 10:47:54,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1521421354, now seen corresponding path program 1 times [2018-02-02 10:47:54,806 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:47:54,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:47:54,820 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:47:54,826 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Unknown lemma type! at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:299) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.access$1(Interpolator.java:263) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$ProofTreeWalker.walk(Interpolator.java:132) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:220) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:201) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:915) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:281) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:199) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.FixedTraceAbstractionRefinementStrategy.getTraceCheck(FixedTraceAbstractionRefinementStrategy.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:397) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:381) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:316) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:115) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:119) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-02-02 10:47:54,828 INFO L168 Benchmark]: Toolchain (without parser) took 1126.36 ms. Allocated memory was 404.2 MB in the beginning and 602.9 MB in the end (delta: 198.7 MB). Free memory was 361.1 MB in the beginning and 529.8 MB in the end (delta: -168.7 MB). Peak memory consumption was 30.0 MB. Max. memory is 5.3 GB. [2018-02-02 10:47:54,829 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 404.2 MB. Free memory is still 367.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 10:47:54,829 INFO L168 Benchmark]: CACSL2BoogieTranslator took 177.56 ms. Allocated memory is still 404.2 MB. Free memory was 361.1 MB in the beginning and 347.8 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. [2018-02-02 10:47:54,830 INFO L168 Benchmark]: Boogie Preprocessor took 26.86 ms. Allocated memory is still 404.2 MB. Free memory was 347.8 MB in the beginning and 346.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-02 10:47:54,830 INFO L168 Benchmark]: RCFGBuilder took 198.19 ms. Allocated memory is still 404.2 MB. Free memory was 346.5 MB in the beginning and 327.2 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 5.3 GB. [2018-02-02 10:47:54,830 INFO L168 Benchmark]: TraceAbstraction took 720.73 ms. Allocated memory was 404.2 MB in the beginning and 602.9 MB in the end (delta: 198.7 MB). Free memory was 327.2 MB in the beginning and 531.7 MB in the end (delta: -204.5 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 10:47:54,831 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 404.2 MB. Free memory is still 367.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 177.56 ms. Allocated memory is still 404.2 MB. Free memory was 361.1 MB in the beginning and 347.8 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 26.86 ms. Allocated memory is still 404.2 MB. Free memory was 347.8 MB in the beginning and 346.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 198.19 ms. Allocated memory is still 404.2 MB. Free memory was 346.5 MB in the beginning and 327.2 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 5.3 GB. * TraceAbstraction took 720.73 ms. Allocated memory was 404.2 MB in the beginning and 602.9 MB in the end (delta: 198.7 MB). Free memory was 327.2 MB in the beginning and 531.7 MB in the end (delta: -204.5 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Unknown lemma type! de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Unknown lemma type!: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:299) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test7_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_10-47-54-837.csv Received shutdown request...