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_Array.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test1_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-26d9e06-m [2018-02-02 10:23:17,967 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 10:23:17,968 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 10:23:17,979 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 10:23:17,979 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 10:23:17,979 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 10:23:17,980 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 10:23:17,981 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 10:23:17,982 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 10:23:17,983 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 10:23:17,984 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 10:23:17,984 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 10:23:17,985 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 10:23:17,986 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 10:23:17,986 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 10:23:17,988 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 10:23:17,989 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 10:23:17,991 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 10:23:17,992 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 10:23:17,993 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 10:23:17,994 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-02 10:23:17,999 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_Array.epf [2018-02-02 10:23:18,008 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 10:23:18,009 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 10:23:18,010 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 10:23:18,010 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 10:23:18,010 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 10:23:18,010 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 10:23:18,010 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 10:23:18,010 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 10:23:18,012 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 10:23:18,013 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 10:23:18,013 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 10:23:18,013 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 10:23:18,013 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 10:23:18,013 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 10:23:18,013 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 10:23:18,014 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 10:23:18,014 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 10:23:18,014 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 10:23:18,014 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 10:23:18,014 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 10:23:18,014 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 10:23:18,015 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 10:23:18,015 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-02-02 10:23:18,042 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 10:23:18,053 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 10:23:18,059 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 10:23:18,060 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 10:23:18,060 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 10:23:18,061 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test1_true-valid-memsafety_true-termination.i [2018-02-02 10:23:18,234 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 10:23:18,235 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 10:23:18,236 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 10:23:18,236 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 10:23:18,241 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 10:23:18,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 10:23:18" (1/1) ... [2018-02-02 10:23:18,245 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30ce2b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:23:18, skipping insertion in model container [2018-02-02 10:23:18,245 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 10:23:18" (1/1) ... [2018-02-02 10:23:18,260 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 10:23:18,297 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 10:23:18,375 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 10:23:18,384 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 10:23:18,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:23:18 WrapperNode [2018-02-02 10:23:18,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 10:23:18,388 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 10:23:18,388 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 10:23:18,388 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 10:23:18,397 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:23:18" (1/1) ... [2018-02-02 10:23:18,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:23:18" (1/1) ... [2018-02-02 10:23:18,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:23:18" (1/1) ... [2018-02-02 10:23:18,403 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:23:18" (1/1) ... [2018-02-02 10:23:18,405 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:23:18" (1/1) ... [2018-02-02 10:23:18,406 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:23:18" (1/1) ... [2018-02-02 10:23:18,407 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:23:18" (1/1) ... [2018-02-02 10:23:18,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 10:23:18,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 10:23:18,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 10:23:18,409 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 10:23:18,409 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:23:18" (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 10:23:18,445 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 10:23:18,445 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 10:23:18,445 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-02-02 10:23:18,445 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-02-02 10:23:18,446 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 10:23:18,446 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 10:23:18,446 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 10:23:18,446 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 10:23:18,446 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-02 10:23:18,446 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-02 10:23:18,446 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-02 10:23:18,446 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-02-02 10:23:18,446 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-02-02 10:23:18,446 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 10:23:18,446 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 10:23:18,446 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 10:23:18,551 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 10:23:18,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 10:23:18 BoogieIcfgContainer [2018-02-02 10:23:18,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 10:23:18,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 10:23:18,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 10:23:18,555 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 10:23:18,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 10:23:18" (1/3) ... [2018-02-02 10:23:18,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31c9ee21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 10:23:18, skipping insertion in model container [2018-02-02 10:23:18,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:23:18" (2/3) ... [2018-02-02 10:23:18,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31c9ee21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 10:23:18, skipping insertion in model container [2018-02-02 10:23:18,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 10:23:18" (3/3) ... [2018-02-02 10:23:18,558 INFO L107 eAbstractionObserver]: Analyzing ICFG memleaks_test1_true-valid-memsafety_true-termination.i [2018-02-02 10:23:18,566 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-02 10:23:18,572 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-02-02 10:23:18,608 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 10:23:18,608 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 10:23:18,608 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-02-02 10:23:18,608 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-02 10:23:18,608 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 10:23:18,608 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 10:23:18,608 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 10:23:18,609 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 10:23:18,609 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 10:23:18,620 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-02-02 10:23:18,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-02-02 10:23:18,628 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:23:18,629 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:23:18,629 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-02-02 10:23:18,633 INFO L82 PathProgramCache]: Analyzing trace with hash 169906871, now seen corresponding path program 1 times [2018-02-02 10:23:18,678 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:23:18,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:23:18,717 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:23:18,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:23:18,791 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:23:18,791 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 10:23:18,791 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:23:18,792 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 10:23:18,792 INFO L182 omatonBuilderFactory]: Interpolants [27#true, 28#false, 29#(= 0 |ldv_malloc_#res.offset|), 30#(= 0 |entry_point_#t~ret2.offset|), 31#(= 0 entry_point_~p~0.offset)] [2018-02-02 10:23:18,792 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 10:23:18,793 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 10:23:18,801 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 10:23:18,801 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 10:23:18,802 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2018-02-02 10:23:18,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:23:18,826 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2018-02-02 10:23:18,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 10:23:18,886 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-02-02 10:23:18,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:23:18,894 INFO L225 Difference]: With dead ends: 29 [2018-02-02 10:23:18,894 INFO L226 Difference]: Without dead ends: 26 [2018-02-02 10:23:18,895 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 10:23:18,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-02-02 10:23:18,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2018-02-02 10:23:18,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-02-02 10:23:18,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2018-02-02 10:23:18,916 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 13 [2018-02-02 10:23:18,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:23:18,916 INFO L432 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2018-02-02 10:23:18,916 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 10:23:18,916 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2018-02-02 10:23:18,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-02-02 10:23:18,917 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:23:18,917 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:23:18,917 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-02-02 10:23:18,917 INFO L82 PathProgramCache]: Analyzing trace with hash 169906872, now seen corresponding path program 1 times [2018-02-02 10:23:18,918 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:23:18,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:23:18,927 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:23:18,959 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 10:23:18,959 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:23:18,959 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 10:23:18,959 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:23:18,959 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 10:23:18,959 INFO L182 omatonBuilderFactory]: Interpolants [86#true, 87#false, 88#(= 0 |ldv_malloc_#res.base|), 89#(= 0 |entry_point_#t~ret2.base|), 90#(= 0 entry_point_~p~0.base)] [2018-02-02 10:23:18,959 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 10:23:18,960 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 10:23:18,960 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 10:23:18,960 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 10:23:18,961 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 5 states. [2018-02-02 10:23:18,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:23:18,974 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2018-02-02 10:23:18,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 10:23:18,975 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-02-02 10:23:18,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:23:18,978 INFO L225 Difference]: With dead ends: 27 [2018-02-02 10:23:18,978 INFO L226 Difference]: Without dead ends: 27 [2018-02-02 10:23:18,978 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 10:23:18,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-02-02 10:23:18,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2018-02-02 10:23:18,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-02-02 10:23:18,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2018-02-02 10:23:18,982 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 13 [2018-02-02 10:23:18,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:23:18,982 INFO L432 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2018-02-02 10:23:18,982 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 10:23:18,983 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2018-02-02 10:23:18,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-02 10:23:18,983 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:23:18,983 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:23:18,983 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-02-02 10:23:18,984 INFO L82 PathProgramCache]: Analyzing trace with hash 1595862325, now seen corresponding path program 1 times [2018-02-02 10:23:18,985 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:23:18,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:23:18,999 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:23:19,043 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 10:23:19,043 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:23:19,043 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 10:23:19,043 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:23:19,043 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 10:23:19,043 INFO L182 omatonBuilderFactory]: Interpolants [144#false, 145#(= 0 |ldv_malloc_#t~malloc1.offset|), 146#(= 0 |ldv_malloc_#res.offset|), 147#(= 0 |entry_point_#t~ret2.offset|), 148#(= 0 entry_point_~p~0.offset), 143#true] [2018-02-02 10:23:19,043 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 10:23:19,044 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-02 10:23:19,044 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-02 10:23:19,044 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-02 10:23:19,044 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 6 states. [2018-02-02 10:23:19,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:23:19,059 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2018-02-02 10:23:19,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-02 10:23:19,059 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-02-02 10:23:19,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:23:19,060 INFO L225 Difference]: With dead ends: 24 [2018-02-02 10:23:19,060 INFO L226 Difference]: Without dead ends: 24 [2018-02-02 10:23:19,060 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-02-02 10:23:19,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-02-02 10:23:19,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-02-02 10:23:19,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-02-02 10:23:19,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-02-02 10:23:19,062 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 15 [2018-02-02 10:23:19,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:23:19,062 INFO L432 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-02-02 10:23:19,062 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-02 10:23:19,062 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-02-02 10:23:19,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-02 10:23:19,062 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:23:19,063 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:23:19,063 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-02-02 10:23:19,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1595862326, now seen corresponding path program 1 times [2018-02-02 10:23:19,064 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:23:19,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:23:19,072 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:23:19,124 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 10:23:19,124 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:23:19,124 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 10:23:19,125 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:23:19,125 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 10:23:19,125 INFO L182 omatonBuilderFactory]: Interpolants [199#true, 200#false, 201#(= 1 (select |#valid| |ldv_malloc_#t~malloc1.base|)), 202#(= 1 (select |#valid| |ldv_malloc_#res.base|)), 203#(= 1 (select |#valid| |entry_point_#t~ret2.base|)), 204#(= 1 (select |#valid| entry_point_~p~0.base))] [2018-02-02 10:23:19,125 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 10:23:19,125 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-02 10:23:19,126 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-02 10:23:19,126 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-02 10:23:19,126 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 6 states. [2018-02-02 10:23:19,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:23:19,155 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2018-02-02 10:23:19,156 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 10:23:19,159 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-02-02 10:23:19,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:23:19,161 INFO L225 Difference]: With dead ends: 23 [2018-02-02 10:23:19,162 INFO L226 Difference]: Without dead ends: 23 [2018-02-02 10:23:19,162 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-02-02 10:23:19,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-02-02 10:23:19,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2018-02-02 10:23:19,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-02-02 10:23:19,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-02-02 10:23:19,163 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 15 [2018-02-02 10:23:19,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:23:19,164 INFO L432 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2018-02-02 10:23:19,164 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-02 10:23:19,164 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-02-02 10:23:19,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-02-02 10:23:19,164 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:23:19,164 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:23:19,164 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-02-02 10:23:19,164 INFO L82 PathProgramCache]: Analyzing trace with hash -2070856781, now seen corresponding path program 1 times [2018-02-02 10:23:19,165 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:23:19,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:23:19,173 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:23:19,224 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 10:23:19,224 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:23:19,224 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 10:23:19,224 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:23:19,224 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 10:23:19,225 INFO L182 omatonBuilderFactory]: Interpolants [249#true, 250#false, 251#(= |#valid| |old(#valid)|), 252#(and (= |#valid| |old(#valid)|) (= 0 |ldv_malloc_#res.base|)), 253#(and (= |#valid| |old(#valid)|) (= 0 |entry_point_#t~ret2.base|)), 254#(and (= 0 entry_point_~p~0.base) (= |#valid| |old(#valid)|))] [2018-02-02 10:23:19,225 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 10:23:19,225 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-02 10:23:19,225 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-02 10:23:19,225 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-02-02 10:23:19,226 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 6 states. [2018-02-02 10:23:19,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:23:19,254 INFO L93 Difference]: Finished difference Result 26 states and 25 transitions. [2018-02-02 10:23:19,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 10:23:19,255 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-02-02 10:23:19,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:23:19,255 INFO L225 Difference]: With dead ends: 26 [2018-02-02 10:23:19,255 INFO L226 Difference]: Without dead ends: 19 [2018-02-02 10:23:19,255 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-02-02 10:23:19,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-02-02 10:23:19,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-02-02 10:23:19,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-02-02 10:23:19,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2018-02-02 10:23:19,257 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 16 [2018-02-02 10:23:19,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:23:19,258 INFO L432 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2018-02-02 10:23:19,258 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-02 10:23:19,258 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2018-02-02 10:23:19,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-02-02 10:23:19,258 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:23:19,258 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:23:19,258 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-02-02 10:23:19,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1341515893, now seen corresponding path program 1 times [2018-02-02 10:23:19,263 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:23:19,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:23:19,274 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:23:19,381 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 10:23:19,381 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:23:19,381 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-02 10:23:19,381 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:23:19,382 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 10:23:19,382 INFO L182 omatonBuilderFactory]: Interpolants [304#(and (= (select |old(#valid)| |ldv_malloc_#res.base|) 0) (= |#valid| (store |old(#valid)| |ldv_malloc_#res.base| (select |#valid| |ldv_malloc_#res.base|))) (not (= 0 |ldv_malloc_#res.base|))), 305#(and (= |#valid| (store |old(#valid)| |entry_point_#t~ret2.base| (select |#valid| |entry_point_#t~ret2.base|))) (not (= 0 |entry_point_#t~ret2.base|)) (= (select |old(#valid)| |entry_point_#t~ret2.base|) 0)), 306#(and (= (store |old(#valid)| entry_point_~p~0.base (select (store |#valid| entry_point_~p~0.base 0) entry_point_~p~0.base)) (store |#valid| entry_point_~p~0.base 0)) (not (= 0 entry_point_~p~0.base)) (= (select |old(#valid)| entry_point_~p~0.base) (select (store |#valid| entry_point_~p~0.base 0) entry_point_~p~0.base))), 300#true, 301#false, 302#(= |#valid| |old(#valid)|), 303#(and (not (= 0 |ldv_malloc_#t~malloc1.base|)) (= (store |old(#valid)| |ldv_malloc_#t~malloc1.base| (select |#valid| |ldv_malloc_#t~malloc1.base|)) |#valid|) (= (select |old(#valid)| |ldv_malloc_#t~malloc1.base|) 0))] [2018-02-02 10:23:19,382 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 10:23:19,382 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-02 10:23:19,382 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-02 10:23:19,383 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-02-02 10:23:19,383 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand 7 states. [2018-02-02 10:23:19,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:23:19,442 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-02-02 10:23:19,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-02 10:23:19,443 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2018-02-02 10:23:19,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:23:19,443 INFO L225 Difference]: With dead ends: 18 [2018-02-02 10:23:19,443 INFO L226 Difference]: Without dead ends: 0 [2018-02-02 10:23:19,444 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-02-02 10:23:19,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-02-02 10:23:19,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-02-02 10:23:19,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-02-02 10:23:19,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-02-02 10:23:19,444 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2018-02-02 10:23:19,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:23:19,445 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-02-02 10:23:19,445 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-02 10:23:19,445 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-02-02 10:23:19,445 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-02-02 10:23:19,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.02 10:23:19 BoogieIcfgContainer [2018-02-02 10:23:19,448 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-02 10:23:19,449 INFO L168 Benchmark]: Toolchain (without parser) took 1214.92 ms. Allocated memory was 401.1 MB in the beginning and 610.3 MB in the end (delta: 209.2 MB). Free memory was 358.0 MB in the beginning and 498.2 MB in the end (delta: -140.2 MB). Peak memory consumption was 69.0 MB. Max. memory is 5.3 GB. [2018-02-02 10:23:19,450 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 401.1 MB. Free memory is still 364.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 10:23:19,450 INFO L168 Benchmark]: CACSL2BoogieTranslator took 152.47 ms. Allocated memory is still 401.1 MB. Free memory was 358.0 MB in the beginning and 346.1 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. [2018-02-02 10:23:19,450 INFO L168 Benchmark]: Boogie Preprocessor took 19.94 ms. Allocated memory is still 401.1 MB. Free memory was 346.1 MB in the beginning and 343.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-02 10:23:19,451 INFO L168 Benchmark]: RCFGBuilder took 143.07 ms. Allocated memory is still 401.1 MB. Free memory was 343.4 MB in the beginning and 330.4 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 5.3 GB. [2018-02-02 10:23:19,451 INFO L168 Benchmark]: TraceAbstraction took 896.50 ms. Allocated memory was 401.1 MB in the beginning and 610.3 MB in the end (delta: 209.2 MB). Free memory was 330.4 MB in the beginning and 498.2 MB in the end (delta: -167.8 MB). Peak memory consumption was 41.4 MB. Max. memory is 5.3 GB. [2018-02-02 10:23:19,452 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 401.1 MB. Free memory is still 364.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 152.47 ms. Allocated memory is still 401.1 MB. Free memory was 358.0 MB in the beginning and 346.1 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 19.94 ms. Allocated memory is still 401.1 MB. Free memory was 346.1 MB in the beginning and 343.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 143.07 ms. Allocated memory is still 401.1 MB. Free memory was 343.4 MB in the beginning and 330.4 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 896.50 ms. Allocated memory was 401.1 MB in the beginning and 610.3 MB in the end (delta: 209.2 MB). Free memory was 330.4 MB in the beginning and 498.2 MB in the end (delta: -167.8 MB). Peak memory consumption was 41.4 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1438]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 24 locations, 3 error locations. SAFE Result, 0.8s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 103 SDtfs, 19 SDslu, 280 SDs, 0 SdLazy, 146 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=1, 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, 6 MinimizatonAttempts, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 4280 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test1_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_10-23-19-457.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test1_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-02_10-23-19-457.csv Received shutdown request...