java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/list-properties/splice_true-unreach-call_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c17473d-m [2018-02-04 19:43:02,855 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 19:43:02,856 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 19:43:02,866 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 19:43:02,866 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 19:43:02,867 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 19:43:02,868 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 19:43:02,869 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 19:43:02,875 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 19:43:02,875 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 19:43:02,876 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 19:43:02,876 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 19:43:02,877 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 19:43:02,878 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 19:43:02,878 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 19:43:02,880 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 19:43:02,882 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 19:43:02,883 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 19:43:02,885 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 19:43:02,886 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 19:43:02,888 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-04 19:43:02,892 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 19:43:02,892 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 19:43:02,893 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 19:43:02,904 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 19:43:02,904 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 19:43:02,905 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 19:43:02,905 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 19:43:02,905 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 19:43:02,905 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 19:43:02,906 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 19:43:02,906 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 19:43:02,906 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 19:43:02,906 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 19:43:02,906 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 19:43:02,906 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 19:43:02,906 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 19:43:02,907 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 19:43:02,907 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 19:43:02,907 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 19:43:02,907 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 19:43:02,907 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 19:43:02,907 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 19:43:02,907 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 19:43:02,908 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 19:43:02,908 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-04 19:43:02,908 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-04 19:43:02,908 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-02-04 19:43:02,934 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 19:43:02,943 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 19:43:02,946 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 19:43:02,948 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 19:43:02,948 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 19:43:02,948 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/splice_true-unreach-call_false-valid-memtrack.i [2018-02-04 19:43:03,066 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 19:43:03,067 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 19:43:03,068 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 19:43:03,068 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 19:43:03,072 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 19:43:03,073 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 07:43:03" (1/1) ... [2018-02-04 19:43:03,076 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20e54bf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:43:03, skipping insertion in model container [2018-02-04 19:43:03,076 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 07:43:03" (1/1) ... [2018-02-04 19:43:03,093 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 19:43:03,142 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 19:43:03,239 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 19:43:03,253 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 19:43:03,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:43:03 WrapperNode [2018-02-04 19:43:03,260 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 19:43:03,260 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 19:43:03,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 19:43:03,261 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 19:43:03,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:43:03" (1/1) ... [2018-02-04 19:43:03,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:43:03" (1/1) ... [2018-02-04 19:43:03,284 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:43:03" (1/1) ... [2018-02-04 19:43:03,284 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:43:03" (1/1) ... [2018-02-04 19:43:03,288 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:43:03" (1/1) ... [2018-02-04 19:43:03,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:43:03" (1/1) ... [2018-02-04 19:43:03,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:43:03" (1/1) ... [2018-02-04 19:43:03,292 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 19:43:03,293 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 19:43:03,293 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 19:43:03,293 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 19:43:03,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:43:03" (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 19:43:03,333 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 19:43:03,333 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 19:43:03,333 INFO L136 BoogieDeclarations]: Found implementation of procedure exit [2018-02-04 19:43:03,333 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 19:43:03,333 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-04 19:43:03,333 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-04 19:43:03,333 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 19:43:03,333 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 19:43:03,333 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 19:43:03,334 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 19:43:03,334 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 19:43:03,334 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-02-04 19:43:03,334 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 19:43:03,334 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 19:43:03,334 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-02-04 19:43:03,334 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 19:43:03,334 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 19:43:03,334 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 19:43:03,637 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 19:43:03,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 07:43:03 BoogieIcfgContainer [2018-02-04 19:43:03,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 19:43:03,638 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 19:43:03,639 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 19:43:03,641 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 19:43:03,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 07:43:03" (1/3) ... [2018-02-04 19:43:03,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@495b79e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 07:43:03, skipping insertion in model container [2018-02-04 19:43:03,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:43:03" (2/3) ... [2018-02-04 19:43:03,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@495b79e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 07:43:03, skipping insertion in model container [2018-02-04 19:43:03,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 07:43:03" (3/3) ... [2018-02-04 19:43:03,643 INFO L107 eAbstractionObserver]: Analyzing ICFG splice_true-unreach-call_false-valid-memtrack.i [2018-02-04 19:43:03,648 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-04 19:43:03,654 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 29 error locations. [2018-02-04 19:43:03,676 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 19:43:03,676 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 19:43:03,677 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-04 19:43:03,677 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-04 19:43:03,677 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 19:43:03,677 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 19:43:03,677 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 19:43:03,677 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 19:43:03,678 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 19:43:03,687 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2018-02-04 19:43:03,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-02-04 19:43:03,695 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:43:03,696 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:43:03,696 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:43:03,700 INFO L82 PathProgramCache]: Analyzing trace with hash 26423453, now seen corresponding path program 1 times [2018-02-04 19:43:03,701 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:43:03,702 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:43:03,731 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:43:03,731 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:43:03,731 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:43:03,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:43:03,766 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:43:03,789 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 19:43:03,791 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:43:03,791 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-04 19:43:03,792 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-02-04 19:43:03,800 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-02-04 19:43:03,800 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-02-04 19:43:03,802 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2018-02-04 19:43:03,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:43:03,818 INFO L93 Difference]: Finished difference Result 90 states and 98 transitions. [2018-02-04 19:43:03,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-02-04 19:43:03,818 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-02-04 19:43:03,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:43:03,825 INFO L225 Difference]: With dead ends: 90 [2018-02-04 19:43:03,825 INFO L226 Difference]: Without dead ends: 82 [2018-02-04 19:43:03,826 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-02-04 19:43:03,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-02-04 19:43:03,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2018-02-04 19:43:03,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-02-04 19:43:03,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 88 transitions. [2018-02-04 19:43:03,918 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 88 transitions. Word has length 12 [2018-02-04 19:43:03,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:43:03,918 INFO L432 AbstractCegarLoop]: Abstraction has 82 states and 88 transitions. [2018-02-04 19:43:03,918 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-02-04 19:43:03,918 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2018-02-04 19:43:03,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-04 19:43:03,918 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:43:03,919 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:43:03,919 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:43:03,919 INFO L82 PathProgramCache]: Analyzing trace with hash -378065087, now seen corresponding path program 1 times [2018-02-04 19:43:03,920 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:43:03,920 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:43:03,920 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:43:03,921 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:43:03,921 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:43:03,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:43:03,933 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:43:03,989 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 19:43:03,989 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:43:03,990 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 19:43:03,991 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 19:43:03,991 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 19:43:03,991 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 19:43:03,991 INFO L87 Difference]: Start difference. First operand 82 states and 88 transitions. Second operand 5 states. [2018-02-04 19:43:04,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:43:04,159 INFO L93 Difference]: Finished difference Result 91 states and 98 transitions. [2018-02-04 19:43:04,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 19:43:04,159 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-02-04 19:43:04,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:43:04,160 INFO L225 Difference]: With dead ends: 91 [2018-02-04 19:43:04,161 INFO L226 Difference]: Without dead ends: 91 [2018-02-04 19:43:04,161 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-02-04 19:43:04,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-02-04 19:43:04,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 85. [2018-02-04 19:43:04,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-02-04 19:43:04,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 97 transitions. [2018-02-04 19:43:04,167 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 97 transitions. Word has length 14 [2018-02-04 19:43:04,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:43:04,168 INFO L432 AbstractCegarLoop]: Abstraction has 85 states and 97 transitions. [2018-02-04 19:43:04,168 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 19:43:04,168 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 97 transitions. [2018-02-04 19:43:04,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-04 19:43:04,169 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:43:04,169 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:43:04,169 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:43:04,169 INFO L82 PathProgramCache]: Analyzing trace with hash -378065086, now seen corresponding path program 1 times [2018-02-04 19:43:04,169 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:43:04,169 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:43:04,170 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:43:04,170 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:43:04,170 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:43:04,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:43:04,183 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:43:04,244 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 19:43:04,244 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:43:04,244 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 19:43:04,244 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 19:43:04,244 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 19:43:04,245 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 19:43:04,245 INFO L87 Difference]: Start difference. First operand 85 states and 97 transitions. Second operand 5 states. [2018-02-04 19:43:04,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:43:04,374 INFO L93 Difference]: Finished difference Result 100 states and 109 transitions. [2018-02-04 19:43:04,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 19:43:04,374 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-02-04 19:43:04,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:43:04,375 INFO L225 Difference]: With dead ends: 100 [2018-02-04 19:43:04,375 INFO L226 Difference]: Without dead ends: 100 [2018-02-04 19:43:04,376 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-02-04 19:43:04,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-02-04 19:43:04,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 93. [2018-02-04 19:43:04,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-02-04 19:43:04,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 102 transitions. [2018-02-04 19:43:04,381 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 102 transitions. Word has length 14 [2018-02-04 19:43:04,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:43:04,381 INFO L432 AbstractCegarLoop]: Abstraction has 93 states and 102 transitions. [2018-02-04 19:43:04,381 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 19:43:04,381 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 102 transitions. [2018-02-04 19:43:04,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-02-04 19:43:04,382 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:43:04,382 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 19:43:04,382 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:43:04,383 INFO L82 PathProgramCache]: Analyzing trace with hash -1532728651, now seen corresponding path program 1 times [2018-02-04 19:43:04,383 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:43:04,383 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:43:04,384 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:43:04,384 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:43:04,384 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:43:04,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-04 19:43:04,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-04 19:43:04,424 INFO L410 BasicCegarLoop]: Counterexample might be feasible [2018-02-04 19:43:04,432 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-02-04 19:43:04,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.02 07:43:04 BoogieIcfgContainer [2018-02-04 19:43:04,443 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-04 19:43:04,444 INFO L168 Benchmark]: Toolchain (without parser) took 1376.79 ms. Allocated memory was 408.4 MB in the beginning and 625.0 MB in the end (delta: 216.5 MB). Free memory was 362.3 MB in the beginning and 532.0 MB in the end (delta: -169.8 MB). Peak memory consumption was 46.8 MB. Max. memory is 5.3 GB. [2018-02-04 19:43:04,445 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 408.4 MB. Free memory is still 368.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 19:43:04,445 INFO L168 Benchmark]: CACSL2BoogieTranslator took 192.11 ms. Allocated memory is still 408.4 MB. Free memory was 362.3 MB in the beginning and 351.7 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-02-04 19:43:04,445 INFO L168 Benchmark]: Boogie Preprocessor took 32.21 ms. Allocated memory is still 408.4 MB. Free memory was 351.7 MB in the beginning and 349.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 5.3 GB. [2018-02-04 19:43:04,445 INFO L168 Benchmark]: RCFGBuilder took 345.06 ms. Allocated memory is still 408.4 MB. Free memory was 349.0 MB in the beginning and 320.9 MB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 5.3 GB. [2018-02-04 19:43:04,446 INFO L168 Benchmark]: TraceAbstraction took 804.53 ms. Allocated memory was 408.4 MB in the beginning and 625.0 MB in the end (delta: 216.5 MB). Free memory was 320.9 MB in the beginning and 532.0 MB in the end (delta: -211.1 MB). Peak memory consumption was 5.4 MB. Max. memory is 5.3 GB. [2018-02-04 19:43:04,447 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 408.4 MB. Free memory is still 368.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 192.11 ms. Allocated memory is still 408.4 MB. Free memory was 362.3 MB in the beginning and 351.7 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 32.21 ms. Allocated memory is still 408.4 MB. Free memory was 351.7 MB in the beginning and 349.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 5.3 GB. * RCFGBuilder took 345.06 ms. Allocated memory is still 408.4 MB. Free memory was 349.0 MB in the beginning and 320.9 MB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 804.53 ms. Allocated memory was 408.4 MB in the beginning and 625.0 MB in the end (delta: 216.5 MB). Free memory was 320.9 MB in the beginning and 532.0 MB in the end (delta: -211.1 MB). Peak memory consumption was 5.4 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: 626]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L627] int flag = 1; VAL [flag=1] [L628] EXPR, FCALL malloc(sizeof(struct node)) VAL [flag=1, malloc(sizeof(struct node))={12:0}] [L628] List a = (List) malloc(sizeof(struct node)); VAL [a={12:0}, flag=1, malloc(sizeof(struct node))={12:0}] [L629] COND FALSE !(a == 0) VAL [a={12:0}, flag=1, malloc(sizeof(struct node))={12:0}] [L630] List t; [L631] List l1; [L632] List l2; [L633] List b; [L634] List u; [L635] List p = a; VAL [a={12:0}, flag=1, malloc(sizeof(struct node))={12:0}, p={12:0}] [L636] COND FALSE !(__VERIFIER_nondet_int()) [L649] FCALL p->h = 3 VAL [a={12:0}, flag=1, malloc(sizeof(struct node))={12:0}, p={12:0}] [L650] EXPR, FCALL a->h VAL [a={12:0}, a->h=3, flag=1, malloc(sizeof(struct node))={12:0}, p={12:0}] [L650] COND TRUE a->h == 3 [L650] return 0; VAL [\result=0, a={12:0}, flag=1, malloc(sizeof(struct node))={12:0}, p={12:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 92 locations, 29 error locations. UNSAFE Result, 0.7s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 189 SDtfs, 426 SDslu, 74 SDs, 0 SdLazy, 155 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=93occurred 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, 13 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 1551 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 proved your program to be incorrect! Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/splice_true-unreach-call_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_19-43-04-453.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/splice_true-unreach-call_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-04_19-43-04-453.csv Received shutdown request...