java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test1_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 03:22:33,243 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 03:22:33,245 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 03:22:33,257 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 03:22:33,257 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 03:22:33,258 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 03:22:33,259 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 03:22:33,260 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 03:22:33,262 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 03:22:33,262 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 03:22:33,262 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-02-04 03:22:33,279 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf [2018-02-04 03:22:33,290 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 03:22:33,290 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 03:22:33,291 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 03:22:33,291 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 03:22:33,291 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 03:22:33,292 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 03:22:33,292 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 03:22:33,292 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 03:22:33,292 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 03:22:33,292 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 03:22:33,292 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 03:22:33,293 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 03:22:33,293 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 03:22:33,293 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 03:22:33,293 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 03:22:33,293 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 03:22:33,293 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 03:22:33,293 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 03:22:33,294 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 03:22:33,294 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 03:22:33,294 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 03:22:33,294 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 03:22:33,294 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-02-04 03:22:33,327 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 03:22:33,339 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 03:22:33,342 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 03:22:33,344 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 03:22:33,344 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 03:22:33,345 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test1_true-valid-memsafety_true-termination.i [2018-02-04 03:22:33,532 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 03:22:33,534 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 03:22:33,535 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 03:22:33,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 03:22:33,543 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 03:22:33,544 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 03:22:33" (1/1) ... [2018-02-04 03:22:33,546 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b089594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 03:22:33, skipping insertion in model container [2018-02-04 03:22:33,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 03:22:33" (1/1) ... [2018-02-04 03:22:33,558 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 03:22:33,592 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 03:22:33,679 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 03:22:33,689 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 03:22:33,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 03:22:33 WrapperNode [2018-02-04 03:22:33,693 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 03:22:33,693 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 03:22:33,693 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 03:22:33,693 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 03:22:33,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 03:22:33" (1/1) ... [2018-02-04 03:22:33,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 03:22:33" (1/1) ... [2018-02-04 03:22:33,709 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 03:22:33" (1/1) ... [2018-02-04 03:22:33,709 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 03:22:33" (1/1) ... [2018-02-04 03:22:33,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 03:22:33" (1/1) ... [2018-02-04 03:22:33,713 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 03:22:33" (1/1) ... [2018-02-04 03:22:33,713 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 03:22:33" (1/1) ... [2018-02-04 03:22:33,715 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 03:22:33,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 03:22:33,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 03:22:33,715 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 03:22:33,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 03:22:33" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 03:22:33,758 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 03:22:33,758 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 03:22:33,758 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-02-04 03:22:33,758 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-02-04 03:22:33,758 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 03:22:33,758 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 03:22:33,759 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 03:22:33,759 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 03:22:33,759 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 03:22:33,759 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 03:22:33,759 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 03:22:33,759 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-02-04 03:22:33,759 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-02-04 03:22:33,759 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 03:22:33,759 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 03:22:33,759 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 03:22:33,863 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 03:22:33,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 03:22:33 BoogieIcfgContainer [2018-02-04 03:22:33,864 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 03:22:33,865 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 03:22:33,865 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 03:22:33,868 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 03:22:33,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 03:22:33" (1/3) ... [2018-02-04 03:22:33,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c38755f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 03:22:33, skipping insertion in model container [2018-02-04 03:22:33,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 03:22:33" (2/3) ... [2018-02-04 03:22:33,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c38755f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 03:22:33, skipping insertion in model container [2018-02-04 03:22:33,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 03:22:33" (3/3) ... [2018-02-04 03:22:33,871 INFO L107 eAbstractionObserver]: Analyzing ICFG memleaks_test1_true-valid-memsafety_true-termination.i [2018-02-04 03:22:33,878 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-04 03:22:33,885 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-02-04 03:22:33,922 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 03:22:33,922 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 03:22:33,922 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-02-04 03:22:33,923 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-04 03:22:33,923 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 03:22:33,923 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 03:22:33,923 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 03:22:33,923 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 03:22:33,924 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 03:22:33,936 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-02-04 03:22:33,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-02-04 03:22:33,944 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 03:22:33,945 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 03:22:33,945 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-02-04 03:22:33,949 INFO L82 PathProgramCache]: Analyzing trace with hash 169906871, now seen corresponding path program 1 times [2018-02-04 03:22:33,997 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 03:22:34,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 03:22:34,033 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 03:22:34,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 03:22:34,093 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 03:22:34,093 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 03:22:34,094 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 03:22:34,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 03:22:34,094 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)] [2018-02-04 03:22:34,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 03:22:34,095 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 03:22:34,103 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 03:22:34,104 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 03:22:34,105 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2018-02-04 03:22:34,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 03:22:34,183 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2018-02-04 03:22:34,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 03:22:34,185 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-02-04 03:22:34,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 03:22:34,191 INFO L225 Difference]: With dead ends: 29 [2018-02-04 03:22:34,191 INFO L226 Difference]: Without dead ends: 26 [2018-02-04 03:22:34,193 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 [2018-02-04 03:22:34,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-02-04 03:22:34,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2018-02-04 03:22:34,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-02-04 03:22:34,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2018-02-04 03:22:34,216 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 13 [2018-02-04 03:22:34,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 03:22:34,216 INFO L432 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2018-02-04 03:22:34,216 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 03:22:34,216 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2018-02-04 03:22:34,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-02-04 03:22:34,217 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 03:22:34,217 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 03:22:34,217 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-02-04 03:22:34,217 INFO L82 PathProgramCache]: Analyzing trace with hash 169906872, now seen corresponding path program 1 times [2018-02-04 03:22:34,218 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 03:22:34,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 03:22:34,229 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 03:22:34,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 03:22:34,269 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 03:22:34,269 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 03:22:34,269 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 03:22:34,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 03:22:34,270 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)] [2018-02-04 03:22:34,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 03:22:34,271 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 03:22:34,271 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 03:22:34,271 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 03:22:34,271 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 5 states. [2018-02-04 03:22:34,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 03:22:34,292 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2018-02-04 03:22:34,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 03:22:34,293 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-02-04 03:22:34,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 03:22:34,295 INFO L225 Difference]: With dead ends: 27 [2018-02-04 03:22:34,296 INFO L226 Difference]: Without dead ends: 27 [2018-02-04 03:22:34,296 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 [2018-02-04 03:22:34,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-02-04 03:22:34,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2018-02-04 03:22:34,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-02-04 03:22:34,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2018-02-04 03:22:34,300 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 13 [2018-02-04 03:22:34,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 03:22:34,300 INFO L432 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2018-02-04 03:22:34,300 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 03:22:34,300 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2018-02-04 03:22:34,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-04 03:22:34,301 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 03:22:34,301 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 03:22:34,301 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-02-04 03:22:34,302 INFO L82 PathProgramCache]: Analyzing trace with hash 1595862325, now seen corresponding path program 1 times [2018-02-04 03:22:34,303 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 03:22:34,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 03:22:34,317 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 03:22:34,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 03:22:34,361 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 03:22:34,361 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 03:22:34,361 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 03:22:34,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 03:22:34,362 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] [2018-02-04 03:22:34,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 03:22:34,362 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 03:22:34,362 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 03:22:34,362 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 03:22:34,363 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 6 states. [2018-02-04 03:22:34,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 03:22:34,407 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2018-02-04 03:22:34,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 03:22:34,408 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-02-04 03:22:34,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 03:22:34,408 INFO L225 Difference]: With dead ends: 24 [2018-02-04 03:22:34,409 INFO L226 Difference]: Without dead ends: 24 [2018-02-04 03:22:34,409 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 [2018-02-04 03:22:34,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-02-04 03:22:34,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-02-04 03:22:34,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-02-04 03:22:34,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-02-04 03:22:34,412 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 15 [2018-02-04 03:22:34,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 03:22:34,412 INFO L432 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-02-04 03:22:34,412 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 03:22:34,412 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-02-04 03:22:34,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-04 03:22:34,413 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 03:22:34,413 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 03:22:34,413 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-02-04 03:22:34,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1595862326, now seen corresponding path program 1 times [2018-02-04 03:22:34,414 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 03:22:34,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 03:22:34,423 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 03:22:34,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 03:22:34,473 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 03:22:34,473 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 03:22:34,473 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 03:22:34,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 03:22:34,473 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))] [2018-02-04 03:22:34,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 03:22:34,474 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 03:22:34,474 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 03:22:34,474 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 03:22:34,474 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 6 states. [2018-02-04 03:22:34,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 03:22:34,518 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2018-02-04 03:22:34,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 03:22:34,519 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-02-04 03:22:34,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 03:22:34,520 INFO L225 Difference]: With dead ends: 23 [2018-02-04 03:22:34,520 INFO L226 Difference]: Without dead ends: 23 [2018-02-04 03:22:34,520 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 [2018-02-04 03:22:34,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-02-04 03:22:34,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2018-02-04 03:22:34,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-02-04 03:22:34,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-02-04 03:22:34,522 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 15 [2018-02-04 03:22:34,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 03:22:34,523 INFO L432 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2018-02-04 03:22:34,523 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 03:22:34,523 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-02-04 03:22:34,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-02-04 03:22:34,523 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 03:22:34,523 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 03:22:34,523 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-02-04 03:22:34,524 INFO L82 PathProgramCache]: Analyzing trace with hash -2070856781, now seen corresponding path program 1 times [2018-02-04 03:22:34,525 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 03:22:34,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 03:22:34,533 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 03:22:34,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 03:22:34,586 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 03:22:34,586 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 03:22:34,586 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 03:22:34,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 03:22:34,586 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)|))] [2018-02-04 03:22:34,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 03:22:34,587 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 03:22:34,587 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 03:22:34,587 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-02-04 03:22:34,587 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 6 states. [2018-02-04 03:22:34,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 03:22:34,624 INFO L93 Difference]: Finished difference Result 26 states and 25 transitions. [2018-02-04 03:22:34,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 03:22:34,624 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-02-04 03:22:34,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 03:22:34,625 INFO L225 Difference]: With dead ends: 26 [2018-02-04 03:22:34,625 INFO L226 Difference]: Without dead ends: 19 [2018-02-04 03:22:34,625 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 [2018-02-04 03:22:34,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-02-04 03:22:34,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-02-04 03:22:34,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-02-04 03:22:34,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2018-02-04 03:22:34,626 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 16 [2018-02-04 03:22:34,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 03:22:34,627 INFO L432 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2018-02-04 03:22:34,627 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 03:22:34,627 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2018-02-04 03:22:34,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-02-04 03:22:34,627 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 03:22:34,627 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 03:22:34,627 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-02-04 03:22:34,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1341515893, now seen corresponding path program 1 times [2018-02-04 03:22:34,628 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 03:22:34,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 03:22:34,638 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 03:22:34,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 03:22:34,758 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 03:22:34,759 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-04 03:22:34,759 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 03:22:34,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 03:22:34,759 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))] [2018-02-04 03:22:34,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 03:22:34,760 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-04 03:22:34,760 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-04 03:22:34,760 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-02-04 03:22:34,760 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand 7 states. [2018-02-04 03:22:34,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 03:22:34,848 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-02-04 03:22:34,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-04 03:22:34,849 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2018-02-04 03:22:34,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 03:22:34,849 INFO L225 Difference]: With dead ends: 18 [2018-02-04 03:22:34,849 INFO L226 Difference]: Without dead ends: 0 [2018-02-04 03:22:34,850 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-02-04 03:22:34,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-02-04 03:22:34,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-02-04 03:22:34,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-02-04 03:22:34,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-02-04 03:22:34,850 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2018-02-04 03:22:34,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 03:22:34,851 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-02-04 03:22:34,851 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-04 03:22:34,851 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-02-04 03:22:34,851 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-02-04 03:22:34,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.02 03:22:34 BoogieIcfgContainer [2018-02-04 03:22:34,856 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-04 03:22:34,857 INFO L168 Benchmark]: Toolchain (without parser) took 1324.01 ms. Allocated memory was 405.8 MB in the beginning and 612.9 MB in the end (delta: 207.1 MB). Free memory was 362.7 MB in the beginning and 501.2 MB in the end (delta: -138.5 MB). Peak memory consumption was 68.6 MB. Max. memory is 5.3 GB. [2018-02-04 03:22:34,858 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 405.8 MB. Free memory is still 369.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 03:22:34,858 INFO L168 Benchmark]: CACSL2BoogieTranslator took 158.36 ms. Allocated memory is still 405.8 MB. Free memory was 362.7 MB in the beginning and 350.8 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. [2018-02-04 03:22:34,858 INFO L168 Benchmark]: Boogie Preprocessor took 21.57 ms. Allocated memory is still 405.8 MB. Free memory was 350.8 MB in the beginning and 348.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-04 03:22:34,858 INFO L168 Benchmark]: RCFGBuilder took 149.35 ms. Allocated memory is still 405.8 MB. Free memory was 348.1 MB in the beginning and 335.1 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 5.3 GB. [2018-02-04 03:22:34,859 INFO L168 Benchmark]: TraceAbstraction took 991.00 ms. Allocated memory was 405.8 MB in the beginning and 612.9 MB in the end (delta: 207.1 MB). Free memory was 335.1 MB in the beginning and 501.2 MB in the end (delta: -166.0 MB). Peak memory consumption was 41.0 MB. Max. memory is 5.3 GB. [2018-02-04 03:22:34,860 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 405.8 MB. Free memory is still 369.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 158.36 ms. Allocated memory is still 405.8 MB. Free memory was 362.7 MB in the beginning and 350.8 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 21.57 ms. Allocated memory is still 405.8 MB. Free memory was 350.8 MB in the beginning and 348.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 149.35 ms. Allocated memory is still 405.8 MB. Free memory was 348.1 MB in the beginning and 335.1 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 991.00 ms. Allocated memory was 405.8 MB in the beginning and 612.9 MB in the end (delta: 207.1 MB). Free memory was 335.1 MB in the beginning and 501.2 MB in the end (delta: -166.0 MB). Peak memory consumption was 41.0 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, 0.9s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 103 SDtfs, 19 SDslu, 280 SDs, 0 SdLazy, 146 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s 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-0-2018-02-04_03-22-34-866.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-0-2018-02-04_03-22-34-866.csv Received shutdown request...