java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cav18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/list-ext-properties/960521-1_1_false-valid-free.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-26d9e06-m [2018-02-02 10:40:40,713 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 10:40:40,715 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 10:40:40,727 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 10:40:40,727 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 10:40:40,728 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 10:40:40,729 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 10:40:40,730 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 10:40:40,732 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 10:40:40,732 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 10:40:40,733 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 10:40:40,733 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 10:40:40,734 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 10:40:40,735 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 10:40:40,736 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 10:40:40,737 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 10:40:40,739 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 10:40:40,740 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 10:40:40,741 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 10:40:40,742 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 10:40:40,744 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-02 10:40:40,748 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-02 10:40:40,748 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-02 10:40:40,748 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cav18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-02-02 10:40:40,757 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 10:40:40,757 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 10:40:40,758 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 10:40:40,758 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 10:40:40,758 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 10:40:40,758 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 10:40:40,758 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 10:40:40,759 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 10:40:40,759 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 10:40:40,759 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 10:40:40,759 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 10:40:40,759 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 10:40:40,759 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 10:40:40,759 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 10:40:40,760 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 10:40:40,760 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 10:40:40,760 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 10:40:40,760 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 10:40:40,760 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 10:40:40,760 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 10:40:40,761 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 10:40:40,761 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 10:40:40,761 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-02-02 10:40:40,761 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol_NoArrayInterpol [2018-02-02 10:40:40,786 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 10:40:40,793 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 10:40:40,795 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 10:40:40,796 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 10:40:40,797 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 10:40:40,797 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/960521-1_1_false-valid-free.i [2018-02-02 10:40:40,912 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 10:40:40,913 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 10:40:40,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 10:40:40,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 10:40:40,918 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 10:40:40,919 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 10:40:40" (1/1) ... [2018-02-02 10:40:40,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fe43571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:40:40, skipping insertion in model container [2018-02-02 10:40:40,921 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 10:40:40" (1/1) ... [2018-02-02 10:40:40,933 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 10:40:40,969 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 10:40:41,066 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 10:40:41,077 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 10:40:41,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:40:41 WrapperNode [2018-02-02 10:40:41,081 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 10:40:41,082 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 10:40:41,082 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 10:40:41,082 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 10:40:41,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:40:41" (1/1) ... [2018-02-02 10:40:41,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:40:41" (1/1) ... [2018-02-02 10:40:41,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:40:41" (1/1) ... [2018-02-02 10:40:41,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:40:41" (1/1) ... [2018-02-02 10:40:41,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:40:41" (1/1) ... [2018-02-02 10:40:41,103 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:40:41" (1/1) ... [2018-02-02 10:40:41,104 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:40:41" (1/1) ... [2018-02-02 10:40:41,106 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 10:40:41,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 10:40:41,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 10:40:41,106 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 10:40:41,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:40:41" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 10:40:41,142 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 10:40:41,142 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 10:40:41,142 INFO L136 BoogieDeclarations]: Found implementation of procedure foo [2018-02-02 10:40:41,143 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 10:40:41,143 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-02 10:40:41,143 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-02 10:40:41,143 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 10:40:41,143 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 10:40:41,143 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 10:40:41,143 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-02 10:40:41,144 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-02 10:40:41,144 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-02 10:40:41,144 INFO L128 BoogieDeclarations]: Found specification of procedure foo [2018-02-02 10:40:41,144 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 10:40:41,144 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 10:40:41,144 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 10:40:41,306 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 10:40:41,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 10:40:41 BoogieIcfgContainer [2018-02-02 10:40:41,306 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 10:40:41,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 10:40:41,307 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 10:40:41,309 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 10:40:41,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 10:40:40" (1/3) ... [2018-02-02 10:40:41,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56d67f34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 10:40:41, skipping insertion in model container [2018-02-02 10:40:41,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:40:41" (2/3) ... [2018-02-02 10:40:41,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56d67f34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 10:40:41, skipping insertion in model container [2018-02-02 10:40:41,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 10:40:41" (3/3) ... [2018-02-02 10:40:41,311 INFO L107 eAbstractionObserver]: Analyzing ICFG 960521-1_1_false-valid-free.i [2018-02-02 10:40:41,316 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-02 10:40:41,320 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2018-02-02 10:40:41,351 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 10:40:41,351 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 10:40:41,351 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-02-02 10:40:41,351 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-02 10:40:41,351 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 10:40:41,351 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 10:40:41,351 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 10:40:41,351 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 10:40:41,352 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 10:40:41,360 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2018-02-02 10:40:41,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-02-02 10:40:41,368 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:40:41,369 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:40:41,369 INFO L371 AbstractCegarLoop]: === Iteration 1 === [fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr12EnsuresViolation]=== [2018-02-02 10:40:41,374 INFO L82 PathProgramCache]: Analyzing trace with hash -1352732268, now seen corresponding path program 1 times [2018-02-02 10:40:41,409 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:40:41,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:40:41,444 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:40:41,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:40:41,474 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:40:41,475 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-02 10:40:41,475 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:40:41,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:40:41,476 INFO L182 omatonBuilderFactory]: Interpolants [59#true, 60#false] [2018-02-02 10:40:41,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:40:41,476 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-02-02 10:40:41,487 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-02-02 10:40:41,488 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-02-02 10:40:41,490 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 2 states. [2018-02-02 10:40:41,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:40:41,503 INFO L93 Difference]: Finished difference Result 56 states and 59 transitions. [2018-02-02 10:40:41,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-02-02 10:40:41,504 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-02-02 10:40:41,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:40:41,510 INFO L225 Difference]: With dead ends: 56 [2018-02-02 10:40:41,510 INFO L226 Difference]: Without dead ends: 53 [2018-02-02 10:40:41,511 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 [2018-02-02 10:40:41,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-02-02 10:40:41,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2018-02-02 10:40:41,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-02-02 10:40:41,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 56 transitions. [2018-02-02 10:40:41,583 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 56 transitions. Word has length 12 [2018-02-02 10:40:41,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:40:41,584 INFO L432 AbstractCegarLoop]: Abstraction has 53 states and 56 transitions. [2018-02-02 10:40:41,584 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-02-02 10:40:41,584 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 56 transitions. [2018-02-02 10:40:41,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-02 10:40:41,584 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:40:41,584 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:40:41,584 INFO L371 AbstractCegarLoop]: === Iteration 2 === [fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr12EnsuresViolation]=== [2018-02-02 10:40:41,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1000920166, now seen corresponding path program 1 times [2018-02-02 10:40:41,585 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:40:41,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:40:41,603 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:40:41,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:40:41,646 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:40:41,646 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 10:40:41,646 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:40:41,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:40:41,647 INFO L182 omatonBuilderFactory]: Interpolants [170#true, 171#false, 172#(= 1 (select |#valid| |main_#t~malloc7.base|)), 173#(= 1 (select |#valid| |main_#t~post8.base|))] [2018-02-02 10:40:41,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:40:41,648 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-02 10:40:41,648 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-02 10:40:41,648 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-02 10:40:41,648 INFO L87 Difference]: Start difference. First operand 53 states and 56 transitions. Second operand 4 states. [2018-02-02 10:40:41,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:40:41,739 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2018-02-02 10:40:41,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-02 10:40:41,740 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-02-02 10:40:41,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:40:41,741 INFO L225 Difference]: With dead ends: 52 [2018-02-02 10:40:41,741 INFO L226 Difference]: Without dead ends: 52 [2018-02-02 10:40:41,741 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-02 10:40:41,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-02-02 10:40:41,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-02-02 10:40:41,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-02-02 10:40:41,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2018-02-02 10:40:41,746 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 14 [2018-02-02 10:40:41,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:40:41,746 INFO L432 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2018-02-02 10:40:41,746 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-02 10:40:41,746 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2018-02-02 10:40:41,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-02 10:40:41,747 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:40:41,747 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:40:41,747 INFO L371 AbstractCegarLoop]: === Iteration 3 === [fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr12EnsuresViolation]=== [2018-02-02 10:40:41,747 INFO L82 PathProgramCache]: Analyzing trace with hash -1000920165, now seen corresponding path program 1 times [2018-02-02 10:40:41,748 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:40:41,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:40:41,763 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:40:41,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:40:41,818 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:40:41,818 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 10:40:41,819 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:40:41,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:40:41,819 INFO L182 omatonBuilderFactory]: Interpolants [280#true, 281#false, 282#(<= 1 ~n), 283#(and (= 0 |main_#t~malloc7.offset|) (<= 4 (select |#length| |main_#t~malloc7.base|))), 284#(and (= |main_#t~post8.offset| 0) (<= 4 (select |#length| |main_#t~post8.base|)))] [2018-02-02 10:40:41,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:40:41,819 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 10:40:41,820 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 10:40:41,820 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 10:40:41,820 INFO L87 Difference]: Start difference. First operand 52 states and 55 transitions. Second operand 5 states. [2018-02-02 10:40:41,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:40:41,904 INFO L93 Difference]: Finished difference Result 51 states and 54 transitions. [2018-02-02 10:40:41,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 10:40:41,904 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-02-02 10:40:41,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:40:41,905 INFO L225 Difference]: With dead ends: 51 [2018-02-02 10:40:41,905 INFO L226 Difference]: Without dead ends: 51 [2018-02-02 10:40:41,905 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 [2018-02-02 10:40:41,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-02-02 10:40:41,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-02-02 10:40:41,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-02-02 10:40:41,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 54 transitions. [2018-02-02 10:40:41,909 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 54 transitions. Word has length 14 [2018-02-02 10:40:41,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:40:41,909 INFO L432 AbstractCegarLoop]: Abstraction has 51 states and 54 transitions. [2018-02-02 10:40:41,910 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 10:40:41,910 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 54 transitions. [2018-02-02 10:40:41,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-02 10:40:41,910 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:40:41,910 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:40:41,910 INFO L371 AbstractCegarLoop]: === Iteration 4 === [fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr12EnsuresViolation]=== [2018-02-02 10:40:41,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1559748963, now seen corresponding path program 1 times [2018-02-02 10:40:41,911 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:40:41,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:40:41,925 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:40:41,931 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Unknown lemma type! at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:299) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.access$1(Interpolator.java:263) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$ProofTreeWalker.walk(Interpolator.java:132) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:220) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:201) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:915) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:281) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:199) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.FixedTraceAbstractionRefinementStrategy.getTraceCheck(FixedTraceAbstractionRefinementStrategy.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:397) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:381) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:316) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:115) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:119) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-02-02 10:40:41,935 INFO L168 Benchmark]: Toolchain (without parser) took 1022.71 ms. Allocated memory was 388.0 MB in the beginning and 580.4 MB in the end (delta: 192.4 MB). Free memory was 344.9 MB in the beginning and 514.8 MB in the end (delta: -169.9 MB). Peak memory consumption was 22.5 MB. Max. memory is 5.3 GB. [2018-02-02 10:40:41,936 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 388.0 MB. Free memory is still 351.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 10:40:41,936 INFO L168 Benchmark]: CACSL2BoogieTranslator took 167.92 ms. Allocated memory is still 388.0 MB. Free memory was 344.9 MB in the beginning and 334.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 5.3 GB. [2018-02-02 10:40:41,937 INFO L168 Benchmark]: Boogie Preprocessor took 23.87 ms. Allocated memory is still 388.0 MB. Free memory was 334.2 MB in the beginning and 332.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-02 10:40:41,937 INFO L168 Benchmark]: RCFGBuilder took 200.56 ms. Allocated memory is still 388.0 MB. Free memory was 332.9 MB in the beginning and 313.5 MB in the end (delta: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 5.3 GB. [2018-02-02 10:40:41,937 INFO L168 Benchmark]: TraceAbstraction took 627.98 ms. Allocated memory was 388.0 MB in the beginning and 580.4 MB in the end (delta: 192.4 MB). Free memory was 313.5 MB in the beginning and 514.8 MB in the end (delta: -201.3 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 10:40:41,938 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 388.0 MB. Free memory is still 351.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 167.92 ms. Allocated memory is still 388.0 MB. Free memory was 344.9 MB in the beginning and 334.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 23.87 ms. Allocated memory is still 388.0 MB. Free memory was 334.2 MB in the beginning and 332.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 200.56 ms. Allocated memory is still 388.0 MB. Free memory was 332.9 MB in the beginning and 313.5 MB in the end (delta: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 5.3 GB. * TraceAbstraction took 627.98 ms. Allocated memory was 388.0 MB in the beginning and 580.4 MB in the end (delta: 192.4 MB). Free memory was 313.5 MB in the beginning and 514.8 MB in the end (delta: -201.3 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Unknown lemma type! de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Unknown lemma type!: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:299) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/960521-1_1_false-valid-free.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_10-40-41-943.csv Received shutdown request...