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_z3.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test1_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c17473d-m [2018-02-04 20:45:56,365 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 20:45:56,367 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 20:45:56,379 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 20:45:56,380 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 20:45:56,381 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 20:45:56,382 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 20:45:56,383 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 20:45:56,385 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 20:45:56,386 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 20:45:56,386 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 20:45:56,387 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 20:45:56,387 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 20:45:56,388 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 20:45:56,389 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 20:45:56,391 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 20:45:56,392 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 20:45:56,394 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 20:45:56,394 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 20:45:56,395 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 20:45:56,397 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 20:45:56,397 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 20:45:56,397 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 20:45:56,398 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 20:45:56,399 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 20:45:56,400 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 20:45:56,400 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 20:45:56,400 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 20:45:56,400 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 20:45:56,401 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 20:45:56,401 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 20:45:56,401 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf [2018-02-04 20:45:56,410 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 20:45:56,410 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 20:45:56,411 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 20:45:56,411 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 20:45:56,412 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 20:45:56,412 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 20:45:56,412 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 20:45:56,412 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 20:45:56,412 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 20:45:56,412 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 20:45:56,412 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 20:45:56,413 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 20:45:56,413 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 20:45:56,413 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 20:45:56,413 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 20:45:56,413 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 20:45:56,413 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 20:45:56,413 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 20:45:56,414 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 20:45:56,414 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 20:45:56,414 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 20:45:56,414 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-02-04 20:45:56,414 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-02-04 20:45:56,414 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:45:56,442 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 20:45:56,454 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 20:45:56,458 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 20:45:56,462 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 20:45:56,462 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 20:45:56,463 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test1_false-valid-memtrack_true-termination.i [2018-02-04 20:45:56,624 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 20:45:56,625 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 20:45:56,625 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 20:45:56,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 20:45:56,629 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 20:45:56,630 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 08:45:56" (1/1) ... [2018-02-04 20:45:56,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b275d44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:45:56, skipping insertion in model container [2018-02-04 20:45:56,632 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 08:45:56" (1/1) ... [2018-02-04 20:45:56,641 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 20:45:56,674 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 20:45:56,756 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 20:45:56,766 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 20:45:56,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:45:56 WrapperNode [2018-02-04 20:45:56,771 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 20:45:56,772 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 20:45:56,772 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 20:45:56,772 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 20:45:56,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:45:56" (1/1) ... [2018-02-04 20:45:56,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:45:56" (1/1) ... [2018-02-04 20:45:56,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:45:56" (1/1) ... [2018-02-04 20:45:56,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:45:56" (1/1) ... [2018-02-04 20:45:56,792 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:45:56" (1/1) ... [2018-02-04 20:45:56,793 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:45:56" (1/1) ... [2018-02-04 20:45:56,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:45:56" (1/1) ... [2018-02-04 20:45:56,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 20:45:56,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 20:45:56,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 20:45:56,795 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 20:45:56,796 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:45:56" (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 20:45:56,830 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 20:45:56,830 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 20:45:56,830 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-02-04 20:45:56,830 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-02-04 20:45:56,830 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 20:45:56,830 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 20:45:56,831 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 20:45:56,831 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 20:45:56,831 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 20:45:56,831 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 20:45:56,831 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-02-04 20:45:56,831 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-02-04 20:45:56,831 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 20:45:56,831 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 20:45:56,831 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 20:45:56,912 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 20:45:56,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 08:45:56 BoogieIcfgContainer [2018-02-04 20:45:56,912 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 20:45:56,913 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 20:45:56,913 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 20:45:56,915 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 20:45:56,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 08:45:56" (1/3) ... [2018-02-04 20:45:56,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3778c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 08:45:56, skipping insertion in model container [2018-02-04 20:45:56,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:45:56" (2/3) ... [2018-02-04 20:45:56,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3778c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 08:45:56, skipping insertion in model container [2018-02-04 20:45:56,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 08:45:56" (3/3) ... [2018-02-04 20:45:56,917 INFO L107 eAbstractionObserver]: Analyzing ICFG memleaks_test1_false-valid-memtrack_true-termination.i [2018-02-04 20:45:56,923 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-04 20:45:56,928 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-02-04 20:45:56,951 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 20:45:56,951 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 20:45:56,951 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-02-04 20:45:56,951 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-04 20:45:56,951 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 20:45:56,951 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 20:45:56,951 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 20:45:56,951 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 20:45:56,952 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 20:45:56,960 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-02-04 20:45:56,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-04 20:45:56,968 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:45:56,969 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:45:56,969 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-02-04 20:45:56,972 INFO L82 PathProgramCache]: Analyzing trace with hash -2028105177, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:45:56,981 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:45:57,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:45:57,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:45:57,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:45:57,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:45:57,122 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 20:45:57,152 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:45:57,153 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 20:45:57,154 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:45:57,154 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 20:45:57,154 INFO L182 omatonBuilderFactory]: Interpolants [38#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 39#(and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)), 24#true, 25#false, 29#(= |#valid| |old(#valid)|)] [2018-02-04 20:45:57,155 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 20:45:57,156 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 20:45:57,167 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 20:45:57,168 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 20:45:57,169 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 5 states. [2018-02-04 20:45:57,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:45:57,267 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-02-04 20:45:57,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 20:45:57,268 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-02-04 20:45:57,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:45:57,276 INFO L225 Difference]: With dead ends: 28 [2018-02-04 20:45:57,276 INFO L226 Difference]: Without dead ends: 18 [2018-02-04 20:45:57,278 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-02-04 20:45:57,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-02-04 20:45:57,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-02-04 20:45:57,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-02-04 20:45:57,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2018-02-04 20:45:57,299 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 15 [2018-02-04 20:45:57,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:45:57,299 INFO L432 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2018-02-04 20:45:57,299 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 20:45:57,299 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2018-02-04 20:45:57,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-02-04 20:45:57,299 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:45:57,300 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 20:45:57,300 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation]=== [2018-02-04 20:45:57,300 INFO L82 PathProgramCache]: Analyzing trace with hash -636806683, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:45:57,305 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:45:57,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-04 20:45:57,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-04 20:45:57,349 INFO L410 BasicCegarLoop]: Counterexample might be feasible [2018-02-04 20:45:57,357 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-02-04 20:45:57,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.02 08:45:57 BoogieIcfgContainer [2018-02-04 20:45:57,364 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-04 20:45:57,365 INFO L168 Benchmark]: Toolchain (without parser) took 741.22 ms. Allocated memory is still 402.1 MB. Free memory was 358.8 MB in the beginning and 289.1 MB in the end (delta: 69.8 MB). Peak memory consumption was 69.8 MB. Max. memory is 5.3 GB. [2018-02-04 20:45:57,367 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 402.1 MB. Free memory is still 365.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 20:45:57,367 INFO L168 Benchmark]: CACSL2BoogieTranslator took 146.48 ms. Allocated memory is still 402.1 MB. Free memory was 358.8 MB in the beginning and 346.9 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. [2018-02-04 20:45:57,367 INFO L168 Benchmark]: Boogie Preprocessor took 22.82 ms. Allocated memory is still 402.1 MB. Free memory was 346.9 MB in the beginning and 344.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-04 20:45:57,368 INFO L168 Benchmark]: RCFGBuilder took 117.12 ms. Allocated memory is still 402.1 MB. Free memory was 344.3 MB in the beginning and 330.9 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 5.3 GB. [2018-02-04 20:45:57,368 INFO L168 Benchmark]: TraceAbstraction took 452.04 ms. Allocated memory is still 402.1 MB. Free memory was 330.9 MB in the beginning and 289.1 MB in the end (delta: 41.8 MB). Peak memory consumption was 41.8 MB. Max. memory is 5.3 GB. [2018-02-04 20:45:57,370 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 402.1 MB. Free memory is still 365.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 146.48 ms. Allocated memory is still 402.1 MB. Free memory was 358.8 MB in the beginning and 346.9 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 22.82 ms. Allocated memory is still 402.1 MB. Free memory was 346.9 MB in the beginning and 344.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 117.12 ms. Allocated memory is still 402.1 MB. Free memory was 344.3 MB in the beginning and 330.9 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 5.3 GB. * TraceAbstraction took 452.04 ms. Allocated memory is still 402.1 MB. Free memory was 330.9 MB in the beginning and 289.1 MB in the end (delta: 41.8 MB). Peak memory consumption was 41.8 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1438]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1439] CALL entry_point() [L1435] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4] [L1073] COND TRUE __VERIFIER_nondet_int() [L1074] EXPR, FCALL malloc(size) VAL [\old(size)=4, malloc(size)={7:0}, size=4] [L1074] RET return malloc(size); VAL [\old(size)=4, \result={7:0}, malloc(size)={7:0}, size=4] [L1435] EXPR ldv_malloc(sizeof(int)) VAL [ldv_malloc(sizeof(int))={7:0}] [L1435] RET int *p = (int *)ldv_malloc(sizeof(int)); [L1439] entry_point() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 21 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 16 SDtfs, 14 SDslu, 16 SDs, 0 SdLazy, 29 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 714 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test1_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_20-45-57-377.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test1_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-04_20-45-57-377.csv Received shutdown request...