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_z3.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test5_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:52:23,642 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:52:23,643 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:52:23,655 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:52:23,655 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:52:23,656 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:52:23,657 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:52:23,658 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:52:23,659 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:52:23,660 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:52:23,661 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 04:52:23,661 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 04:52:23,661 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 04:52:23,662 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 04:52:23,663 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 04:52:23,665 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 04:52:23,667 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 04:52:23,668 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 04:52:23,669 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 04:52:23,670 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 04:52:23,672 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-04 04:52:23,676 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf [2018-02-04 04:52:23,686 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:52:23,686 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:52:23,687 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:52:23,687 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:52:23,687 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:52:23,687 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:52:23,687 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:52:23,688 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:52:23,688 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:52:23,688 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:52:23,688 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:52:23,688 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:52:23,688 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:52:23,688 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:52:23,689 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:52:23,689 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:52:23,689 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:52:23,689 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:52:23,689 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:52:23,689 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:52:23,689 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:52:23,690 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:52:23,690 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-02-04 04:52:23,690 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-02-04 04:52:23,690 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:52:23,717 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:52:23,728 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:52:23,733 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:52:23,734 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:52:23,735 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:52:23,735 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test5_true-valid-memsafety_true-termination.i [2018-02-04 04:52:23,875 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:52:23,876 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:52:23,877 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:52:23,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:52:23,882 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:52:23,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:52:23" (1/1) ... [2018-02-04 04:52:23,885 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 04:52:23, skipping insertion in model container [2018-02-04 04:52:23,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:52:23" (1/1) ... [2018-02-04 04:52:23,899 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:52:23,936 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:52:24,014 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:52:24,023 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:52:24,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:52:24 WrapperNode [2018-02-04 04:52:24,028 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:52:24,029 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:52:24,029 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:52:24,029 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:52:24,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:52:24" (1/1) ... [2018-02-04 04:52:24,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:52:24" (1/1) ... [2018-02-04 04:52:24,044 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:52:24" (1/1) ... [2018-02-04 04:52:24,045 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:52:24" (1/1) ... [2018-02-04 04:52:24,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:52:24" (1/1) ... [2018-02-04 04:52:24,048 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:52:24" (1/1) ... [2018-02-04 04:52:24,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:52:24" (1/1) ... [2018-02-04 04:52:24,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:52:24,051 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:52:24,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:52:24,051 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:52:24,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:52:24" (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 04:52:24,087 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:52:24,087 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:52:24,087 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-02-04 04:52:24,087 INFO L136 BoogieDeclarations]: Found implementation of procedure h5 [2018-02-04 04:52:24,087 INFO L136 BoogieDeclarations]: Found implementation of procedure g5 [2018-02-04 04:52:24,088 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-02-04 04:52:24,088 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:52:24,088 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:52:24,088 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:52:24,088 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:52:24,088 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 04:52:24,088 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 04:52:24,088 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 04:52:24,089 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-02-04 04:52:24,089 INFO L128 BoogieDeclarations]: Found specification of procedure h5 [2018-02-04 04:52:24,089 INFO L128 BoogieDeclarations]: Found specification of procedure g5 [2018-02-04 04:52:24,089 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-02-04 04:52:24,089 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:52:24,089 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:52:24,089 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:52:24,200 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:52:24,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:52:24 BoogieIcfgContainer [2018-02-04 04:52:24,201 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:52:24,201 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:52:24,201 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:52:24,203 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:52:24,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:52:23" (1/3) ... [2018-02-04 04:52:24,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e7dd74d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:52:24, skipping insertion in model container [2018-02-04 04:52:24,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:52:24" (2/3) ... [2018-02-04 04:52:24,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e7dd74d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:52:24, skipping insertion in model container [2018-02-04 04:52:24,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:52:24" (3/3) ... [2018-02-04 04:52:24,206 INFO L107 eAbstractionObserver]: Analyzing ICFG memleaks_test5_true-valid-memsafety_true-termination.i [2018-02-04 04:52:24,211 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:52:24,216 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-02-04 04:52:24,253 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:52:24,253 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:52:24,254 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-02-04 04:52:24,254 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-04 04:52:24,254 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:52:24,254 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:52:24,254 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:52:24,254 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:52:24,255 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:52:24,267 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-02-04 04:52:24,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-04 04:52:24,276 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:52:24,277 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:52:24,278 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-02-04 04:52:24,282 INFO L82 PathProgramCache]: Analyzing trace with hash -1224818119, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:52:24,292 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:52:24,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:24,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:24,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:24,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:24,469 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 04:52:24,489 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:52:24,489 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-02-04 04:52:24,490 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:52:24,490 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 04:52:24,491 INFO L182 omatonBuilderFactory]: Interpolants [49#(= 0 |entry_point_#t~ret3.offset|), 50#(= 0 entry_point_~p~1.offset), 51#(= 0 |g5_#in~p.offset|), 36#true, 52#(= 0 g5_~p.offset), 37#false, 53#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 54#(and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)), 59#(= 0 |h5_#t~ret2.offset|), 60#(= 0 |h5_#res.offset|), 61#(= 0 |ldv_malloc_#res.offset|)] [2018-02-04 04:52:24,491 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 04:52:24,491 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-02-04 04:52:24,498 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-02-04 04:52:24,499 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-02-04 04:52:24,501 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 11 states. [2018-02-04 04:52:24,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:52:24,916 INFO L93 Difference]: Finished difference Result 56 states and 58 transitions. [2018-02-04 04:52:24,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-02-04 04:52:24,918 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 20 [2018-02-04 04:52:24,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:52:24,927 INFO L225 Difference]: With dead ends: 56 [2018-02-04 04:52:24,927 INFO L226 Difference]: Without dead ends: 47 [2018-02-04 04:52:24,929 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2018-02-04 04:52:24,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-02-04 04:52:24,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 42. [2018-02-04 04:52:24,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-02-04 04:52:24,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2018-02-04 04:52:24,955 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 20 [2018-02-04 04:52:24,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:52:24,955 INFO L432 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2018-02-04 04:52:24,955 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-02-04 04:52:24,955 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2018-02-04 04:52:24,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-04 04:52:24,956 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:52:24,956 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:52:24,956 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-02-04 04:52:24,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1224818118, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:52:24,960 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:52:24,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:24,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:24,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:25,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:25,020 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 04:52:25,045 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:52:25,045 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-02-04 04:52:25,045 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:52:25,046 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 04:52:25,046 INFO L182 omatonBuilderFactory]: Interpolants [194#(= 0 |entry_point_#t~ret3.base|), 195#(= 0 entry_point_~p~1.base), 196#(= 0 |g5_#in~p.base|), 181#true, 197#(= 0 g5_~p.base), 182#false, 198#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 199#(and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)), 204#(= 0 |h5_#t~ret2.base|), 205#(= 0 |h5_#res.base|), 206#(= 0 |ldv_malloc_#res.base|)] [2018-02-04 04:52:25,046 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 04:52:25,047 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-02-04 04:52:25,048 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-02-04 04:52:25,048 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-02-04 04:52:25,048 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand 11 states. [2018-02-04 04:52:25,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:52:25,270 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2018-02-04 04:52:25,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-02-04 04:52:25,270 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 20 [2018-02-04 04:52:25,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:52:25,270 INFO L225 Difference]: With dead ends: 47 [2018-02-04 04:52:25,271 INFO L226 Difference]: Without dead ends: 32 [2018-02-04 04:52:25,271 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2018-02-04 04:52:25,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-02-04 04:52:25,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2018-02-04 04:52:25,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-02-04 04:52:25,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2018-02-04 04:52:25,274 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 20 [2018-02-04 04:52:25,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:52:25,274 INFO L432 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2018-02-04 04:52:25,274 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-02-04 04:52:25,274 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2018-02-04 04:52:25,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-04 04:52:25,275 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:52:25,275 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:52:25,275 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-02-04 04:52:25,275 INFO L82 PathProgramCache]: Analyzing trace with hash -1045905065, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) [2018-02-04 04:52:25,279 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:52:25,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:25,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:25,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:25,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:25,344 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 04:52:25,360 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:52:25,360 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-02-04 04:52:25,360 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:52:25,360 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 04:52:25,360 INFO L182 omatonBuilderFactory]: Interpolants [304#false, 320#(= 0 |g5_#in~p.offset|), 321#(= 0 g5_~p.offset), 322#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 323#(and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)), 330#(= 0 |h5_#t~ret2.offset|), 331#(= 0 |h5_#res.offset|), 332#(= 0 |ldv_malloc_#t~malloc1.offset|), 333#(= 0 |ldv_malloc_#res.offset|), 318#(= 0 |entry_point_#t~ret3.offset|), 303#true, 319#(= 0 entry_point_~p~1.offset)] [2018-02-04 04:52:25,360 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 04:52:25,361 INFO L409 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-02-04 04:52:25,361 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-02-04 04:52:25,361 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-02-04 04:52:25,361 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand 12 states. [2018-02-04 04:52:25,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:52:25,488 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2018-02-04 04:52:25,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-02-04 04:52:25,488 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2018-02-04 04:52:25,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:52:25,489 INFO L225 Difference]: With dead ends: 31 [2018-02-04 04:52:25,489 INFO L226 Difference]: Without dead ends: 31 [2018-02-04 04:52:25,489 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2018-02-04 04:52:25,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-02-04 04:52:25,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2018-02-04 04:52:25,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-02-04 04:52:25,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2018-02-04 04:52:25,492 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 22 [2018-02-04 04:52:25,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:52:25,492 INFO L432 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2018-02-04 04:52:25,492 INFO L433 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-02-04 04:52:25,492 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2018-02-04 04:52:25,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-04 04:52:25,493 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:52:25,493 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:52:25,493 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-02-04 04:52:25,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1045905064, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:52:25,496 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:52:25,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:25,505 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 04:52:25,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:25,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:25,544 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier WARNING: array quantifier [2018-02-04 04:52:25,582 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:52:25,583 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:52:25,603 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 04:52:25,604 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 04:52:25,609 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 04:52:25,609 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-02-04 04:52:25,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:25,701 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 04:52:25,718 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:52:25,718 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-02-04 04:52:25,718 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:52:25,718 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 04:52:25,718 INFO L182 omatonBuilderFactory]: Interpolants [432#(= (select |#valid| |h5_#t~ret2.base|) 1), 433#(= 1 (select |#valid| |h5_#res.base|)), 434#(= 1 (select |#valid| |ldv_malloc_#t~malloc1.base|)), 435#(= 1 (select |#valid| |ldv_malloc_#res.base|)), 420#(= 1 (select |#valid| |entry_point_#t~ret3.base|)), 405#true, 421#(= 1 (select |#valid| entry_point_~p~1.base)), 406#false, 422#(= 1 (select |#valid| |g5_#in~p.base|)), 423#(= 1 (select |#valid| g5_~p.base)), 424#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 425#(and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|))] [2018-02-04 04:52:25,718 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 04:52:25,718 INFO L409 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-02-04 04:52:25,719 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-02-04 04:52:25,719 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-02-04 04:52:25,719 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand 12 states. [2018-02-04 04:52:25,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:52:25,865 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2018-02-04 04:52:25,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-02-04 04:52:25,865 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2018-02-04 04:52:25,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:52:25,866 INFO L225 Difference]: With dead ends: 32 [2018-02-04 04:52:25,867 INFO L226 Difference]: Without dead ends: 32 [2018-02-04 04:52:25,867 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2018-02-04 04:52:25,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-02-04 04:52:25,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 28. [2018-02-04 04:52:25,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-02-04 04:52:25,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2018-02-04 04:52:25,869 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 22 [2018-02-04 04:52:25,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:52:25,869 INFO L432 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2018-02-04 04:52:25,870 INFO L433 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-02-04 04:52:25,870 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2018-02-04 04:52:25,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-02-04 04:52:25,870 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:52:25,870 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:52:25,870 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-02-04 04:52:25,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1527636810, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:52:25,873 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:52:25,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:25,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:25,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:25,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:25,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:25,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:25,965 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 04:52:25,967 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:52:25,967 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-02-04 04:52:25,967 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:52:25,967 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 04:52:25,967 INFO L182 omatonBuilderFactory]: Interpolants [553#(not (= 0 |h5_#t~ret2.base|)), 554#(not (= 0 |h5_#res.base|)), 555#(not (= 0 |ldv_malloc_#t~malloc1.base|)), 556#(not (= 0 |ldv_malloc_#res.base|)), 557#(= |#valid| |old(#valid)|), 558#(= g5_~p.base |g5_#in~p.base|), 559#(= 0 |g5_#in~p.base|), 529#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 530#(and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)), 505#true, 506#false, 541#(not (= 0 |entry_point_#t~ret3.base|)), 542#(not (= 0 entry_point_~p~1.base))] [2018-02-04 04:52:25,967 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 04:52:25,968 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-02-04 04:52:25,968 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-02-04 04:52:25,968 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2018-02-04 04:52:25,968 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 13 states. [2018-02-04 04:52:26,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:52:26,101 INFO L93 Difference]: Finished difference Result 30 states and 29 transitions. [2018-02-04 04:52:26,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-02-04 04:52:26,102 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 26 [2018-02-04 04:52:26,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:52:26,102 INFO L225 Difference]: With dead ends: 30 [2018-02-04 04:52:26,102 INFO L226 Difference]: Without dead ends: 28 [2018-02-04 04:52:26,103 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2018-02-04 04:52:26,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-02-04 04:52:26,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-02-04 04:52:26,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-02-04 04:52:26,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 27 transitions. [2018-02-04 04:52:26,105 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 27 transitions. Word has length 26 [2018-02-04 04:52:26,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:52:26,105 INFO L432 AbstractCegarLoop]: Abstraction has 28 states and 27 transitions. [2018-02-04 04:52:26,105 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-02-04 04:52:26,105 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 27 transitions. [2018-02-04 04:52:26,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-02-04 04:52:26,105 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:52:26,105 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:52:26,105 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-02-04 04:52:26,106 INFO L82 PathProgramCache]: Analyzing trace with hash -228650675, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:52:26,108 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:52:26,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:26,127 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier WARNING: array quantifier [2018-02-04 04:52:26,128 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Undeclared function symbol (array-ext (Array Int Int) (Array Int Int)) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:321) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.createTerm(Parser.java:802) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1304) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseInterpolants(Executor.java:255) at de.uni_freiburg.informatik.ultimate.smtsolver.external.ScriptorWithGetInterpolants.readInterpolants(ScriptorWithGetInterpolants.java:136) at de.uni_freiburg.informatik.ultimate.smtsolver.external.ScriptorWithGetInterpolants.getInterpolants(ScriptorWithGetInterpolants.java:64) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.getInterpolants(DiffWrapperScript.java:260) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:186) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:283) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:294) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:196) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.FixedTraceAbstractionRefinementStrategy.getTraceCheck(FixedTraceAbstractionRefinementStrategy.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:397) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:381) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:316) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:115) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:119) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-02-04 04:52:26,133 INFO L168 Benchmark]: Toolchain (without parser) took 2256.97 ms. Allocated memory was 403.7 MB in the beginning and 616.0 MB in the end (delta: 212.3 MB). Free memory was 360.4 MB in the beginning and 494.9 MB in the end (delta: -134.6 MB). Peak memory consumption was 77.8 MB. Max. memory is 5.3 GB. [2018-02-04 04:52:26,134 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 403.7 MB. Free memory is still 367.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:52:26,134 INFO L168 Benchmark]: CACSL2BoogieTranslator took 151.53 ms. Allocated memory is still 403.7 MB. Free memory was 360.4 MB in the beginning and 347.2 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. [2018-02-04 04:52:26,135 INFO L168 Benchmark]: Boogie Preprocessor took 22.17 ms. Allocated memory is still 403.7 MB. Free memory was 347.2 MB in the beginning and 345.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-04 04:52:26,135 INFO L168 Benchmark]: RCFGBuilder took 149.78 ms. Allocated memory is still 403.7 MB. Free memory was 345.8 MB in the beginning and 331.3 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:52:26,136 INFO L168 Benchmark]: TraceAbstraction took 1930.65 ms. Allocated memory was 403.7 MB in the beginning and 616.0 MB in the end (delta: 212.3 MB). Free memory was 329.9 MB in the beginning and 494.9 MB in the end (delta: -165.0 MB). Peak memory consumption was 47.3 MB. Max. memory is 5.3 GB. [2018-02-04 04:52:26,138 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 403.7 MB. Free memory is still 367.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 151.53 ms. Allocated memory is still 403.7 MB. Free memory was 360.4 MB in the beginning and 347.2 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 22.17 ms. Allocated memory is still 403.7 MB. Free memory was 347.2 MB in the beginning and 345.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 149.78 ms. Allocated memory is still 403.7 MB. Free memory was 345.8 MB in the beginning and 331.3 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1930.65 ms. Allocated memory was 403.7 MB in the beginning and 616.0 MB in the end (delta: 212.3 MB). Free memory was 329.9 MB in the beginning and 494.9 MB in the end (delta: -165.0 MB). Peak memory consumption was 47.3 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Undeclared function symbol (array-ext (Array Int Int) (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Undeclared function symbol (array-ext (Array Int Int) (Array Int Int)): de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:321) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test5_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_04-52-26-146.csv Received shutdown request...