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/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test5_2_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-acfac67 [2018-01-28 22:32:53,359 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-28 22:32:53,361 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-28 22:32:53,375 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-28 22:32:53,375 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-28 22:32:53,376 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-28 22:32:53,377 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-28 22:32:53,379 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-28 22:32:53,381 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-28 22:32:53,382 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-28 22:32:53,383 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-28 22:32:53,383 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-28 22:32:53,384 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-28 22:32:53,385 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-28 22:32:53,386 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-28 22:32:53,389 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-28 22:32:53,390 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-28 22:32:53,392 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-28 22:32:53,394 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-28 22:32:53,395 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-28 22:32:53,397 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-28 22:32:53,402 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-28 22:32:53,402 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-28 22:32:53,403 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf [2018-01-28 22:32:53,412 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-28 22:32:53,413 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-28 22:32:53,414 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-28 22:32:53,414 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-28 22:32:53,414 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-28 22:32:53,414 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-28 22:32:53,414 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-28 22:32:53,415 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-28 22:32:53,415 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-28 22:32:53,416 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-28 22:32:53,416 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-28 22:32:53,416 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-28 22:32:53,416 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-28 22:32:53,416 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-28 22:32:53,417 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-28 22:32:53,417 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-28 22:32:53,417 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-28 22:32:53,417 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-28 22:32:53,417 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-28 22:32:53,418 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-01-28 22:32:53,418 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-28 22:32:53,418 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-28 22:32:53,418 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-28 22:32:53,418 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-28 22:32:53,419 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-28 22:32:53,419 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-28 22:32:53,419 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-28 22:32:53,419 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-28 22:32:53,419 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-28 22:32:53,420 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-28 22:32:53,420 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-28 22:32:53,420 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-28 22:32:53,421 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-28 22:32:53,421 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-28 22:32:53,457 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-28 22:32:53,471 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-28 22:32:53,475 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-28 22:32:53,477 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-28 22:32:53,477 INFO L276 PluginConnector]: CDTParser initialized [2018-01-28 22:32:53,478 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test5_2_false-valid-memtrack_true-termination.i [2018-01-28 22:32:53,683 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-28 22:32:53,689 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-28 22:32:53,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-28 22:32:53,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-28 22:32:53,695 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-28 22:32:53,696 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 10:32:53" (1/1) ... [2018-01-28 22:32:53,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d41ed0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 10:32:53, skipping insertion in model container [2018-01-28 22:32:53,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 10:32:53" (1/1) ... [2018-01-28 22:32:53,715 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-28 22:32:53,766 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-28 22:32:53,869 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-28 22:32:53,882 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-28 22:32:53,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 10:32:53 WrapperNode [2018-01-28 22:32:53,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-28 22:32:53,890 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-28 22:32:53,890 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-28 22:32:53,890 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-28 22:32:53,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 10:32:53" (1/1) ... [2018-01-28 22:32:53,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 10:32:53" (1/1) ... [2018-01-28 22:32:53,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 10:32:53" (1/1) ... [2018-01-28 22:32:53,913 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 10:32:53" (1/1) ... [2018-01-28 22:32:53,917 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 10:32:53" (1/1) ... [2018-01-28 22:32:53,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 10:32:53" (1/1) ... [2018-01-28 22:32:53,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 10:32:53" (1/1) ... [2018-01-28 22:32:53,922 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-28 22:32:53,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-28 22:32:53,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-28 22:32:53,922 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-28 22:32:53,923 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 10:32:53" (1/1) ... No working directory specified, using /storage/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 [2018-01-28 22:32:53,968 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-28 22:32:53,968 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-28 22:32:53,968 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-28 22:32:53,969 INFO L136 BoogieDeclarations]: Found implementation of procedure f5 [2018-01-28 22:32:53,969 INFO L136 BoogieDeclarations]: Found implementation of procedure g5 [2018-01-28 22:32:53,969 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-28 22:32:53,969 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-28 22:32:53,969 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-28 22:32:53,969 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-28 22:32:53,969 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-28 22:32:53,969 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-28 22:32:53,969 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-28 22:32:53,970 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-28 22:32:53,970 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-28 22:32:53,970 INFO L128 BoogieDeclarations]: Found specification of procedure f5 [2018-01-28 22:32:53,970 INFO L128 BoogieDeclarations]: Found specification of procedure g5 [2018-01-28 22:32:53,970 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-28 22:32:53,970 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-28 22:32:53,970 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-28 22:32:53,970 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-28 22:32:54,123 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-28 22:32:54,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 10:32:54 BoogieIcfgContainer [2018-01-28 22:32:54,124 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-28 22:32:54,125 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-28 22:32:54,125 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-28 22:32:54,128 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-28 22:32:54,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 10:32:53" (1/3) ... [2018-01-28 22:32:54,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@106af93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 10:32:54, skipping insertion in model container [2018-01-28 22:32:54,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 10:32:53" (2/3) ... [2018-01-28 22:32:54,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@106af93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 10:32:54, skipping insertion in model container [2018-01-28 22:32:54,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 10:32:54" (3/3) ... [2018-01-28 22:32:54,132 INFO L107 eAbstractionObserver]: Analyzing ICFG memleaks_test5_2_false-valid-memtrack_true-termination.i [2018-01-28 22:32:54,141 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-28 22:32:54,149 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-01-28 22:32:54,202 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-28 22:32:54,202 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-28 22:32:54,202 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-28 22:32:54,203 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-28 22:32:54,203 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-28 22:32:54,203 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-28 22:32:54,203 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-28 22:32:54,203 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-28 22:32:54,204 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-28 22:32:54,224 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-01-28 22:32:54,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-01-28 22:32:54,232 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:32:54,233 INFO L330 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, 1, 1] [2018-01-28 22:32:54,233 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-01-28 22:32:54,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1352423081, now seen corresponding path program 1 times [2018-01-28 22:32:54,241 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:32:54,241 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:32:54,306 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:32:54,306 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:32:54,306 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:32:54,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:32:54,369 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:32:54,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:32:54,535 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:32:54,535 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-28 22:32:54,537 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-28 22:32:54,547 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-28 22:32:54,548 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-28 22:32:54,550 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 7 states. [2018-01-28 22:32:54,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:32:54,685 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2018-01-28 22:32:54,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-28 22:32:54,687 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2018-01-28 22:32:54,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:32:54,695 INFO L225 Difference]: With dead ends: 41 [2018-01-28 22:32:54,695 INFO L226 Difference]: Without dead ends: 37 [2018-01-28 22:32:54,698 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-01-28 22:32:54,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-01-28 22:32:54,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-01-28 22:32:54,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-01-28 22:32:54,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2018-01-28 22:32:54,729 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 27 [2018-01-28 22:32:54,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:32:54,730 INFO L432 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2018-01-28 22:32:54,730 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-28 22:32:54,730 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2018-01-28 22:32:54,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-01-28 22:32:54,731 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:32:54,732 INFO L330 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, 1, 1] [2018-01-28 22:32:54,732 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-01-28 22:32:54,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1352423082, now seen corresponding path program 1 times [2018-01-28 22:32:54,732 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:32:54,733 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:32:54,735 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:32:54,735 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:32:54,735 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:32:54,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:32:54,753 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:32:54,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:32:54,842 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:32:54,842 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-28 22:32:54,844 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-28 22:32:54,844 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-28 22:32:54,844 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-28 22:32:54,845 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 7 states. [2018-01-28 22:32:54,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:32:54,916 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2018-01-28 22:32:54,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-28 22:32:54,917 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2018-01-28 22:32:54,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:32:54,918 INFO L225 Difference]: With dead ends: 37 [2018-01-28 22:32:54,918 INFO L226 Difference]: Without dead ends: 36 [2018-01-28 22:32:54,919 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-01-28 22:32:54,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-01-28 22:32:54,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-01-28 22:32:54,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-01-28 22:32:54,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2018-01-28 22:32:54,925 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 27 [2018-01-28 22:32:54,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:32:54,926 INFO L432 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2018-01-28 22:32:54,926 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-28 22:32:54,926 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2018-01-28 22:32:54,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-01-28 22:32:54,927 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:32:54,927 INFO L330 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, 1, 1, 1, 1, 1, 1] [2018-01-28 22:32:54,928 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-01-28 22:32:54,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1890992532, now seen corresponding path program 1 times [2018-01-28 22:32:54,928 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:32:54,928 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:32:54,930 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:32:54,930 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:32:54,930 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:32:54,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:32:54,946 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:32:54,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:32:54,997 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:32:54,998 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-28 22:32:54,998 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-28 22:32:54,998 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-28 22:32:54,999 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-28 22:32:54,999 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 3 states. [2018-01-28 22:32:55,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:32:55,049 INFO L93 Difference]: Finished difference Result 52 states and 54 transitions. [2018-01-28 22:32:55,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-28 22:32:55,049 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2018-01-28 22:32:55,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:32:55,053 INFO L225 Difference]: With dead ends: 52 [2018-01-28 22:32:55,053 INFO L226 Difference]: Without dead ends: 48 [2018-01-28 22:32:55,053 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-28 22:32:55,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-01-28 22:32:55,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-01-28 22:32:55,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-01-28 22:32:55,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 50 transitions. [2018-01-28 22:32:55,066 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 50 transitions. Word has length 31 [2018-01-28 22:32:55,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:32:55,066 INFO L432 AbstractCegarLoop]: Abstraction has 48 states and 50 transitions. [2018-01-28 22:32:55,066 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-28 22:32:55,066 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 50 transitions. [2018-01-28 22:32:55,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-01-28 22:32:55,068 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:32:55,068 INFO L330 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, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 22:32:55,069 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-01-28 22:32:55,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1650521388, now seen corresponding path program 1 times [2018-01-28 22:32:55,069 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:32:55,069 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:32:55,071 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:32:55,071 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:32:55,071 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:32:55,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-28 22:32:55,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-28 22:32:55,122 INFO L389 BasicCegarLoop]: Counterexample might be feasible [2018-01-28 22:32:55,134 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-28 22:32:55,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 10:32:55 BoogieIcfgContainer [2018-01-28 22:32:55,146 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-28 22:32:55,147 INFO L168 Benchmark]: Toolchain (without parser) took 1462.86 ms. Allocated memory was 310.4 MB in the beginning and 471.9 MB in the end (delta: 161.5 MB). Free memory was 269.4 MB in the beginning and 401.0 MB in the end (delta: -131.6 MB). Peak memory consumption was 29.9 MB. Max. memory is 5.3 GB. [2018-01-28 22:32:55,148 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 310.4 MB. Free memory is still 275.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-28 22:32:55,148 INFO L168 Benchmark]: CACSL2BoogieTranslator took 199.44 ms. Allocated memory is still 310.4 MB. Free memory was 269.4 MB in the beginning and 255.5 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 5.3 GB. [2018-01-28 22:32:55,148 INFO L168 Benchmark]: Boogie Preprocessor took 32.13 ms. Allocated memory is still 310.4 MB. Free memory is still 255.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-28 22:32:55,148 INFO L168 Benchmark]: RCFGBuilder took 201.67 ms. Allocated memory is still 310.4 MB. Free memory was 255.5 MB in the beginning and 240.9 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 5.3 GB. [2018-01-28 22:32:55,149 INFO L168 Benchmark]: TraceAbstraction took 1021.63 ms. Allocated memory was 310.4 MB in the beginning and 471.9 MB in the end (delta: 161.5 MB). Free memory was 238.9 MB in the beginning and 401.0 MB in the end (delta: -162.1 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-28 22:32:55,150 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 310.4 MB. Free memory is still 275.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 199.44 ms. Allocated memory is still 310.4 MB. Free memory was 269.4 MB in the beginning and 255.5 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 32.13 ms. Allocated memory is still 310.4 MB. Free memory is still 255.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * RCFGBuilder took 201.67 ms. Allocated memory is still 310.4 MB. Free memory was 255.5 MB in the beginning and 240.9 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1021.63 ms. Allocated memory was 310.4 MB in the beginning and 471.9 MB in the end (delta: 161.5 MB). Free memory was 238.9 MB in the beginning and 401.0 MB in the end (delta: -162.1 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1449]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1449. Possible FailurePath: [L1450] CALL entry_point() [L1445] CALL, EXPR f5() [L1434] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4] [L1073] COND TRUE __VERIFIER_nondet_int() VAL [\old(size)=4, __VERIFIER_nondet_int()=1, size=4] [L1074] EXPR, FCALL malloc(size) VAL [\old(size)=4, malloc(size)={6:0}, size=4] [L1074] RET return malloc(size); VAL [\old(size)=4, \result={6:0}, malloc(size)={6:0}, size=4] [L1434] EXPR ldv_malloc(sizeof(int)) VAL [ldv_malloc(sizeof(int))={6:0}] [L1434] int *p = (int *)ldv_malloc(sizeof(int)); VAL [ldv_malloc(sizeof(int))={6:0}, p={6:0}] [L1435] RET return 0; VAL [\result={0:0}, p={6:0}] [L1445] EXPR f5() VAL [f5()={0:0}] [L1445] int *p = f5(); VAL [f5()={0:0}, p={0:0}] [L1446] CALL g5(p) VAL [p={0:0}] [L1439] COND FALSE !(\read(*p)) VAL [p={0:0}, p={0:0}] [L1446] FCALL g5(p) - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 41 locations, 3 error locations. UNSAFE Result, 0.9s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 99 SDtfs, 26 SDslu, 322 SDs, 0 SdLazy, 68 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=3, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 4584 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test5_2_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-28_22-32-55-157.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test5_2_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-28_22-32-55-157.csv Received shutdown request...