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/ldv-memsafety/memleaks_test19_false-valid-free.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:14:59,792 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:14:59,793 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:14:59,806 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:14:59,806 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:14:59,807 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:14:59,808 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:14:59,810 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:14:59,811 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:14:59,812 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:14:59,812 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 04:14:59,812 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 04:14:59,813 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 04:14:59,814 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 04:14:59,815 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 04:14:59,816 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 04:14:59,818 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 04:14:59,820 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 04:14:59,821 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 04:14:59,822 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 04:14:59,824 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 04:14:59,824 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 04:14:59,824 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 04:14:59,825 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 04:14:59,826 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 04:14:59,827 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 04:14:59,827 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 04:14:59,828 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 04:14:59,828 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 04:14:59,828 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 04:14:59,829 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 04:14:59,829 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 04:14:59,839 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:14:59,840 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:14:59,841 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:14:59,841 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:14:59,841 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:14:59,841 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:14:59,841 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:14:59,842 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:14:59,842 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:14:59,842 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:14:59,842 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:14:59,842 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:14:59,842 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:14:59,842 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:14:59,843 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:14:59,843 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:14:59,843 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:14:59,843 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:14:59,843 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:14:59,843 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:14:59,843 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:14:59,844 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:14:59,844 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-04 04:14:59,844 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-04 04:14:59,844 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-02-04 04:14:59,874 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:14:59,884 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:14:59,888 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:14:59,889 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:14:59,890 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:14:59,890 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test19_false-valid-free.i [2018-02-04 04:15:00,056 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:15:00,057 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:15:00,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:15:00,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:15:00,064 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:15:00,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:15:00" (1/1) ... [2018-02-04 04:15:00,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b089594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:15:00, skipping insertion in model container [2018-02-04 04:15:00,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:15:00" (1/1) ... [2018-02-04 04:15:00,080 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:15:00,117 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:15:00,198 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:15:00,212 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:15:00,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:15:00 WrapperNode [2018-02-04 04:15:00,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:15:00,219 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:15:00,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:15:00,219 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:15:00,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:15:00" (1/1) ... [2018-02-04 04:15:00,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:15:00" (1/1) ... [2018-02-04 04:15:00,238 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:15:00" (1/1) ... [2018-02-04 04:15:00,238 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:15:00" (1/1) ... [2018-02-04 04:15:00,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:15:00" (1/1) ... [2018-02-04 04:15:00,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:15:00" (1/1) ... [2018-02-04 04:15:00,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:15:00" (1/1) ... [2018-02-04 04:15:00,245 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:15:00,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:15:00,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:15:00,245 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:15:00,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:15:00" (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 04:15:00,281 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:15:00,281 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:15:00,282 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-02-04 04:15:00,282 INFO L136 BoogieDeclarations]: Found implementation of procedure f19 [2018-02-04 04:15:00,282 INFO L136 BoogieDeclarations]: Found implementation of procedure f19_undo [2018-02-04 04:15:00,282 INFO L136 BoogieDeclarations]: Found implementation of procedure g19 [2018-02-04 04:15:00,282 INFO L136 BoogieDeclarations]: Found implementation of procedure probe_unsafe_19 [2018-02-04 04:15:00,282 INFO L136 BoogieDeclarations]: Found implementation of procedure disconnect_19 [2018-02-04 04:15:00,282 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-02-04 04:15:00,282 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:15:00,282 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-04 04:15:00,282 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-04 04:15:00,282 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:15:00,282 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:15:00,283 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:15:00,283 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 04:15:00,283 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 04:15:00,283 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 04:15:00,283 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-02-04 04:15:00,283 INFO L128 BoogieDeclarations]: Found specification of procedure f19 [2018-02-04 04:15:00,283 INFO L128 BoogieDeclarations]: Found specification of procedure f19_undo [2018-02-04 04:15:00,283 INFO L128 BoogieDeclarations]: Found specification of procedure g19 [2018-02-04 04:15:00,283 INFO L128 BoogieDeclarations]: Found specification of procedure probe_unsafe_19 [2018-02-04 04:15:00,283 INFO L128 BoogieDeclarations]: Found specification of procedure disconnect_19 [2018-02-04 04:15:00,284 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-02-04 04:15:00,284 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:15:00,284 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:15:00,284 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:15:00,515 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:15:00,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:15:00 BoogieIcfgContainer [2018-02-04 04:15:00,516 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:15:00,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:15:00,517 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:15:00,520 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:15:00,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:15:00" (1/3) ... [2018-02-04 04:15:00,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@107b14dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:15:00, skipping insertion in model container [2018-02-04 04:15:00,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:15:00" (2/3) ... [2018-02-04 04:15:00,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@107b14dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:15:00, skipping insertion in model container [2018-02-04 04:15:00,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:15:00" (3/3) ... [2018-02-04 04:15:00,523 INFO L107 eAbstractionObserver]: Analyzing ICFG memleaks_test19_false-valid-free.i [2018-02-04 04:15:00,530 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:15:00,536 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 21 error locations. [2018-02-04 04:15:00,560 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:15:00,560 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:15:00,560 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-04 04:15:00,561 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-04 04:15:00,561 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:15:00,561 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:15:00,561 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:15:00,561 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:15:00,561 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:15:00,573 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2018-02-04 04:15:00,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-04 04:15:00,580 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:15:00,581 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:15:00,581 INFO L371 AbstractCegarLoop]: === Iteration 1 === [disconnect_19Err0RequiresViolation, disconnect_19Err1RequiresViolation, disconnect_19Err2RequiresViolation, disconnect_19Err3RequiresViolation, probe_unsafe_19Err7RequiresViolation, probe_unsafe_19Err0RequiresViolation, probe_unsafe_19Err2RequiresViolation, probe_unsafe_19Err3RequiresViolation, probe_unsafe_19Err1RequiresViolation, probe_unsafe_19Err6RequiresViolation, probe_unsafe_19Err4RequiresViolation, probe_unsafe_19Err5RequiresViolation, f19_undoErr1RequiresViolation, f19_undoErr2RequiresViolation, f19_undoErr3RequiresViolation, f19_undoErr0RequiresViolation, mainErr0EnsuresViolation, f19Err2RequiresViolation, f19Err3RequiresViolation, f19Err0RequiresViolation, f19Err1RequiresViolation]=== [2018-02-04 04:15:00,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1664045335, now seen corresponding path program 1 times [2018-02-04 04:15:00,586 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:15:00,586 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:15:00,623 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:15:00,624 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:15:00,624 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:15:00,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:15:00,669 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:15:00,779 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 04:15:00,781 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:15:00,781 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:15:00,782 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:15:00,855 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:15:00,856 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 04:15:00,858 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 6 states. [2018-02-04 04:15:01,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:15:01,092 INFO L93 Difference]: Finished difference Result 136 states and 158 transitions. [2018-02-04 04:15:01,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 04:15:01,093 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-02-04 04:15:01,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:15:01,102 INFO L225 Difference]: With dead ends: 136 [2018-02-04 04:15:01,102 INFO L226 Difference]: Without dead ends: 133 [2018-02-04 04:15:01,104 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-02-04 04:15:01,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-02-04 04:15:01,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 97. [2018-02-04 04:15:01,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-02-04 04:15:01,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 113 transitions. [2018-02-04 04:15:01,142 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 113 transitions. Word has length 15 [2018-02-04 04:15:01,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:15:01,142 INFO L432 AbstractCegarLoop]: Abstraction has 97 states and 113 transitions. [2018-02-04 04:15:01,142 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:15:01,142 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 113 transitions. [2018-02-04 04:15:01,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-04 04:15:01,143 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:15:01,143 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:15:01,143 INFO L371 AbstractCegarLoop]: === Iteration 2 === [disconnect_19Err0RequiresViolation, disconnect_19Err1RequiresViolation, disconnect_19Err2RequiresViolation, disconnect_19Err3RequiresViolation, probe_unsafe_19Err7RequiresViolation, probe_unsafe_19Err0RequiresViolation, probe_unsafe_19Err2RequiresViolation, probe_unsafe_19Err3RequiresViolation, probe_unsafe_19Err1RequiresViolation, probe_unsafe_19Err6RequiresViolation, probe_unsafe_19Err4RequiresViolation, probe_unsafe_19Err5RequiresViolation, f19_undoErr1RequiresViolation, f19_undoErr2RequiresViolation, f19_undoErr3RequiresViolation, f19_undoErr0RequiresViolation, mainErr0EnsuresViolation, f19Err2RequiresViolation, f19Err3RequiresViolation, f19Err0RequiresViolation, f19Err1RequiresViolation]=== [2018-02-04 04:15:01,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1664045336, now seen corresponding path program 1 times [2018-02-04 04:15:01,144 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:15:01,144 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:15:01,145 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:15:01,145 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:15:01,146 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:15:01,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:15:01,162 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:15:01,231 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 04:15:01,231 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:15:01,231 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:15:01,232 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:15:01,233 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:15:01,233 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 04:15:01,233 INFO L87 Difference]: Start difference. First operand 97 states and 113 transitions. Second operand 6 states. [2018-02-04 04:15:01,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:15:01,433 INFO L93 Difference]: Finished difference Result 126 states and 146 transitions. [2018-02-04 04:15:01,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:15:01,434 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-02-04 04:15:01,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:15:01,435 INFO L225 Difference]: With dead ends: 126 [2018-02-04 04:15:01,435 INFO L226 Difference]: Without dead ends: 126 [2018-02-04 04:15:01,436 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-02-04 04:15:01,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2018-02-04 04:15:01,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 109. [2018-02-04 04:15:01,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2018-02-04 04:15:01,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 132 transitions. [2018-02-04 04:15:01,443 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 132 transitions. Word has length 15 [2018-02-04 04:15:01,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:15:01,444 INFO L432 AbstractCegarLoop]: Abstraction has 109 states and 132 transitions. [2018-02-04 04:15:01,444 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:15:01,444 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 132 transitions. [2018-02-04 04:15:01,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-02-04 04:15:01,444 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:15:01,444 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 04:15:01,444 INFO L371 AbstractCegarLoop]: === Iteration 3 === [disconnect_19Err0RequiresViolation, disconnect_19Err1RequiresViolation, disconnect_19Err2RequiresViolation, disconnect_19Err3RequiresViolation, probe_unsafe_19Err7RequiresViolation, probe_unsafe_19Err0RequiresViolation, probe_unsafe_19Err2RequiresViolation, probe_unsafe_19Err3RequiresViolation, probe_unsafe_19Err1RequiresViolation, probe_unsafe_19Err6RequiresViolation, probe_unsafe_19Err4RequiresViolation, probe_unsafe_19Err5RequiresViolation, f19_undoErr1RequiresViolation, f19_undoErr2RequiresViolation, f19_undoErr3RequiresViolation, f19_undoErr0RequiresViolation, mainErr0EnsuresViolation, f19Err2RequiresViolation, f19Err3RequiresViolation, f19Err0RequiresViolation, f19Err1RequiresViolation]=== [2018-02-04 04:15:01,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1330432345, now seen corresponding path program 1 times [2018-02-04 04:15:01,445 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:15:01,445 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:15:01,446 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:15:01,446 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:15:01,446 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:15:01,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:15:01,458 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:15:01,465 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.MultiTrackTraceAbstractionRefinementStrategy.getTraceCheck(MultiTrackTraceAbstractionRefinementStrategy.java:222) 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) [2018-02-04 04:15:01,468 INFO L168 Benchmark]: Toolchain (without parser) took 1411.73 ms. Allocated memory was 403.2 MB in the beginning and 613.4 MB in the end (delta: 210.2 MB). Free memory was 360.0 MB in the beginning and 494.0 MB in the end (delta: -133.9 MB). Peak memory consumption was 76.3 MB. Max. memory is 5.3 GB. [2018-02-04 04:15:01,469 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 403.2 MB. Free memory is still 366.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:15:01,470 INFO L168 Benchmark]: CACSL2BoogieTranslator took 160.33 ms. Allocated memory is still 403.2 MB. Free memory was 360.0 MB in the beginning and 346.8 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. [2018-02-04 04:15:01,470 INFO L168 Benchmark]: Boogie Preprocessor took 25.94 ms. Allocated memory is still 403.2 MB. Free memory was 346.8 MB in the beginning and 345.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-04 04:15:01,470 INFO L168 Benchmark]: RCFGBuilder took 271.26 ms. Allocated memory is still 403.2 MB. Free memory was 345.5 MB in the beginning and 319.5 MB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 5.3 GB. [2018-02-04 04:15:01,471 INFO L168 Benchmark]: TraceAbstraction took 951.12 ms. Allocated memory was 403.2 MB in the beginning and 613.4 MB in the end (delta: 210.2 MB). Free memory was 319.5 MB in the beginning and 494.0 MB in the end (delta: -174.5 MB). Peak memory consumption was 35.8 MB. Max. memory is 5.3 GB. [2018-02-04 04:15:01,472 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 403.2 MB. Free memory is still 366.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 160.33 ms. Allocated memory is still 403.2 MB. Free memory was 360.0 MB in the beginning and 346.8 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 25.94 ms. Allocated memory is still 403.2 MB. Free memory was 346.8 MB in the beginning and 345.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 271.26 ms. Allocated memory is still 403.2 MB. Free memory was 345.5 MB in the beginning and 319.5 MB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 951.12 ms. Allocated memory was 403.2 MB in the beginning and 613.4 MB in the end (delta: 210.2 MB). Free memory was 319.5 MB in the beginning and 494.0 MB in the end (delta: -174.5 MB). Peak memory consumption was 35.8 MB. 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_test19_false-valid-free.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_04-15-01-479.csv Received shutdown request...