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/list-ext-properties/test-0158_1_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-5f7ec6e [2018-01-31 09:05:40,716 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-31 09:05:40,718 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-31 09:05:40,735 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-31 09:05:40,735 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-31 09:05:40,736 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-31 09:05:40,737 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-31 09:05:40,739 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-31 09:05:40,741 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-31 09:05:40,742 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-31 09:05:40,743 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-31 09:05:40,743 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-31 09:05:40,744 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-31 09:05:40,746 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-31 09:05:40,747 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-31 09:05:40,749 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-31 09:05:40,751 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-31 09:05:40,753 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-31 09:05:40,754 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-31 09:05:40,755 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-31 09:05:40,758 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-31 09:05:40,763 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-31 09:05:40,764 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-31 09:05:40,764 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 [2018-01-31 09:05:40,774 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-31 09:05:40,774 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-31 09:05:40,775 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-31 09:05:40,775 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-31 09:05:40,775 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-31 09:05:40,775 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-31 09:05:40,776 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-31 09:05:40,776 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-31 09:05:40,776 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-31 09:05:40,776 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-31 09:05:40,777 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-31 09:05:40,777 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-31 09:05:40,777 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-31 09:05:40,777 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-31 09:05:40,777 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-31 09:05:40,778 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-31 09:05:40,778 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-31 09:05:40,778 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-31 09:05:40,778 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-31 09:05:40,778 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-01-31 09:05:40,778 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-31 09:05:40,779 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-31 09:05:40,779 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-31 09:05:40,779 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-31 09:05:40,779 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-31 09:05:40,779 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-31 09:05:40,780 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-31 09:05:40,780 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-31 09:05:40,780 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-31 09:05:40,780 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-31 09:05:40,780 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-31 09:05:40,780 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-31 09:05:40,781 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-31 09:05:40,782 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-31 09:05:40,831 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-31 09:05:40,845 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-31 09:05:40,849 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-31 09:05:40,850 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-31 09:05:40,851 INFO L276 PluginConnector]: CDTParser initialized [2018-01-31 09:05:40,851 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/test-0158_1_false-valid-memtrack_true-termination.i [2018-01-31 09:05:41,093 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-31 09:05:41,104 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-31 09:05:41,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-31 09:05:41,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-31 09:05:41,116 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-31 09:05:41,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 09:05:41" (1/1) ... [2018-01-31 09:05:41,122 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60294a7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:05:41, skipping insertion in model container [2018-01-31 09:05:41,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 09:05:41" (1/1) ... [2018-01-31 09:05:41,142 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-31 09:05:41,200 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-31 09:05:41,364 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-31 09:05:41,390 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-31 09:05:41,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:05:41 WrapperNode [2018-01-31 09:05:41,405 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-31 09:05:41,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-31 09:05:41,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-31 09:05:41,406 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-31 09:05:41,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:05:41" (1/1) ... [2018-01-31 09:05:41,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:05:41" (1/1) ... [2018-01-31 09:05:41,433 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:05:41" (1/1) ... [2018-01-31 09:05:41,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:05:41" (1/1) ... [2018-01-31 09:05:41,441 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:05:41" (1/1) ... [2018-01-31 09:05:41,443 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:05:41" (1/1) ... [2018-01-31 09:05:41,453 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:05:41" (1/1) ... [2018-01-31 09:05:41,455 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-31 09:05:41,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-31 09:05:41,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-31 09:05:41,456 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-31 09:05:41,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:05:41" (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 [2018-01-31 09:05:41,535 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-31 09:05:41,535 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-31 09:05:41,535 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-31 09:05:41,535 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-31 09:05:41,535 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-31 09:05:41,536 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-31 09:05:41,536 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-31 09:05:41,536 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-31 09:05:41,537 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-31 09:05:41,537 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-31 09:05:41,537 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-31 09:05:41,537 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-31 09:05:41,537 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-31 09:05:41,537 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-31 09:05:41,538 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-31 09:05:41,975 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-31 09:05:41,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 09:05:41 BoogieIcfgContainer [2018-01-31 09:05:42,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-31 09:05:42,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-31 09:05:42,013 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-31 09:05:42,016 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-31 09:05:42,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 09:05:41" (1/3) ... [2018-01-31 09:05:42,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27db246a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 09:05:42, skipping insertion in model container [2018-01-31 09:05:42,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:05:41" (2/3) ... [2018-01-31 09:05:42,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27db246a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 09:05:42, skipping insertion in model container [2018-01-31 09:05:42,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 09:05:41" (3/3) ... [2018-01-31 09:05:42,020 INFO L107 eAbstractionObserver]: Analyzing ICFG test-0158_1_false-valid-memtrack_true-termination.i [2018-01-31 09:05:42,029 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-31 09:05:42,039 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-01-31 09:05:42,085 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-31 09:05:42,085 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-31 09:05:42,085 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-31 09:05:42,085 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-31 09:05:42,085 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-31 09:05:42,086 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-31 09:05:42,086 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-31 09:05:42,086 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-31 09:05:42,087 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-31 09:05:42,116 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-01-31 09:05:42,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-01-31 09:05:42,123 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:05:42,126 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 09:05:42,126 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr9RequiresViolation, mainErr8RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr10EnsuresViolation]=== [2018-01-31 09:05:42,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1061064402, now seen corresponding path program 1 times [2018-01-31 09:05:42,133 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:05:42,134 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:05:42,191 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:05:42,191 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:05:42,191 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:05:42,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:05:42,271 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:05:42,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-31 09:05:42,499 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 09:05:42,500 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-31 09:05:42,501 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-31 09:05:42,511 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-31 09:05:42,511 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-31 09:05:42,514 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 3 states. [2018-01-31 09:05:42,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:05:42,633 INFO L93 Difference]: Finished difference Result 38 states and 39 transitions. [2018-01-31 09:05:42,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-31 09:05:42,635 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-01-31 09:05:42,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:05:42,649 INFO L225 Difference]: With dead ends: 38 [2018-01-31 09:05:42,650 INFO L226 Difference]: Without dead ends: 30 [2018-01-31 09:05:42,747 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-31 09:05:42,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-01-31 09:05:42,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-01-31 09:05:42,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-01-31 09:05:42,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2018-01-31 09:05:42,784 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 9 [2018-01-31 09:05:42,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:05:42,784 INFO L432 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2018-01-31 09:05:42,784 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-31 09:05:42,785 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2018-01-31 09:05:42,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-01-31 09:05:42,785 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:05:42,785 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 09:05:42,785 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr9RequiresViolation, mainErr8RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr10EnsuresViolation]=== [2018-01-31 09:05:42,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1061064403, now seen corresponding path program 1 times [2018-01-31 09:05:42,785 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:05:42,786 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:05:42,786 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:05:42,786 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:05:42,786 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:05:42,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:05:42,805 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:05:43,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-31 09:05:43,055 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 09:05:43,055 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-31 09:05:43,056 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-31 09:05:43,057 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-31 09:05:43,058 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-01-31 09:05:43,059 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 4 states. [2018-01-31 09:05:43,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:05:43,173 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2018-01-31 09:05:43,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-31 09:05:43,174 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-01-31 09:05:43,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:05:43,175 INFO L225 Difference]: With dead ends: 30 [2018-01-31 09:05:43,175 INFO L226 Difference]: Without dead ends: 25 [2018-01-31 09:05:43,176 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-01-31 09:05:43,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-01-31 09:05:43,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-01-31 09:05:43,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-01-31 09:05:43,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2018-01-31 09:05:43,181 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 9 [2018-01-31 09:05:43,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:05:43,182 INFO L432 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2018-01-31 09:05:43,182 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-31 09:05:43,182 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2018-01-31 09:05:43,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-31 09:05:43,183 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:05:43,183 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] [2018-01-31 09:05:43,183 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr9RequiresViolation, mainErr8RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr10EnsuresViolation]=== [2018-01-31 09:05:43,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1929104963, now seen corresponding path program 1 times [2018-01-31 09:05:43,184 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:05:43,184 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:05:43,185 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:05:43,186 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:05:43,186 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:05:43,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-31 09:05:43,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-31 09:05:43,310 INFO L410 BasicCegarLoop]: Counterexample might be feasible [2018-01-31 09:05:43,323 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-31 09:05:43,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 09:05:43 BoogieIcfgContainer [2018-01-31 09:05:43,340 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-31 09:05:43,342 INFO L168 Benchmark]: Toolchain (without parser) took 2247.76 ms. Allocated memory was 307.8 MB in the beginning and 469.2 MB in the end (delta: 161.5 MB). Free memory was 266.5 MB in the beginning and 423.4 MB in the end (delta: -156.9 MB). Peak memory consumption was 4.6 MB. Max. memory is 5.3 GB. [2018-01-31 09:05:43,342 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 307.8 MB. Free memory is still 272.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-31 09:05:43,343 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.42 ms. Allocated memory is still 307.8 MB. Free memory was 266.5 MB in the beginning and 256.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-31 09:05:43,343 INFO L168 Benchmark]: Boogie Preprocessor took 49.24 ms. Allocated memory is still 307.8 MB. Free memory was 256.4 MB in the beginning and 254.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-31 09:05:43,344 INFO L168 Benchmark]: RCFGBuilder took 556.76 ms. Allocated memory is still 307.8 MB. Free memory was 254.5 MB in the beginning and 237.5 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 5.3 GB. [2018-01-31 09:05:43,344 INFO L168 Benchmark]: TraceAbstraction took 1327.79 ms. Allocated memory was 307.8 MB in the beginning and 469.2 MB in the end (delta: 161.5 MB). Free memory was 237.5 MB in the beginning and 423.4 MB in the end (delta: -185.9 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-31 09:05:43,346 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 307.8 MB. Free memory is still 272.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 299.42 ms. Allocated memory is still 307.8 MB. Free memory was 266.5 MB in the beginning and 256.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 49.24 ms. Allocated memory is still 307.8 MB. Free memory was 256.4 MB in the beginning and 254.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 556.76 ms. Allocated memory is still 307.8 MB. Free memory was 254.5 MB in the beginning and 237.5 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1327.79 ms. Allocated memory was 307.8 MB in the beginning and 469.2 MB in the end (delta: 161.5 MB). Free memory was 237.5 MB in the beginning and 423.4 MB in the end (delta: -185.9 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: 620]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 620. Possible FailurePath: [L622-L629] FCALL union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; VAL [data={43:0}] [L630] EXPR, FCALL malloc(37U) VAL [data={43:0}, malloc(37U)={40:0}] [L630] FCALL data.p0 = malloc(37U) VAL [data={43:0}, malloc(37U)={40:0}] [L631] COND FALSE !(__VERIFIER_nondet_int()) VAL [__VERIFIER_nondet_int()=0, data={43:0}, malloc(37U)={40:0}] [L634] FCALL data.str.p2 = 30 VAL [data={43:0}, malloc(37U)={40:0}] [L636] EXPR, FCALL data.str.p2 VAL [data={43:0}, data.str.p2=30, malloc(37U)={40:0}] [L636] COND FALSE !(25 > data.str.p2) VAL [data={43:0}, data.str.p2=30, malloc(37U)={40:0}] [L639] return 0; VAL [\result=0, data={43:0}, malloc(37U)={40:0}] [L639] return 0; VAL [\result=0, malloc(37U)={40:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 38 locations, 11 error locations. UNSAFE Result, 1.2s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 41 SDtfs, 35 SDslu, 19 SDs, 0 SdLazy, 29 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 360 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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/test-0158_1_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-31_09-05-43-361.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0158_1_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-31_09-05-43-361.csv Received shutdown request...