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-c17473d-m [2018-02-04 20:51:44,707 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 20:51:44,708 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 20:51:44,717 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 20:51:44,718 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 20:51:44,718 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 20:51:44,719 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 20:51:44,720 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 20:51:44,722 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 20:51:44,722 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 20:51:44,723 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 20:51:44,723 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 20:51:44,724 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 20:51:44,725 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 20:51:44,726 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 20:51:44,727 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 20:51:44,729 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 20:51:44,731 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 20:51:44,732 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 20:51:44,732 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 20:51:44,734 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-04 20:51:44,738 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 20:51:44,738 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 20:51:44,738 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 20:51:44,748 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 20:51:44,748 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 20:51:44,749 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 20:51:44,749 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 20:51:44,749 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 20:51:44,749 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 20:51:44,750 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 20:51:44,750 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 20:51:44,750 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 20:51:44,750 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 20:51:44,750 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 20:51:44,750 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 20:51:44,751 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 20:51:44,751 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 20:51:44,751 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 20:51:44,751 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 20:51:44,751 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 20:51:44,751 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 20:51:44,752 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 20:51:44,752 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 20:51:44,752 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 20:51:44,752 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-02-04 20:51:44,752 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-02-04 20:51:44,752 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:51:44,777 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 20:51:44,789 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 20:51:44,792 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 20:51:44,794 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 20:51:44,794 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 20:51:44,795 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test5_true-valid-memsafety_true-termination.i [2018-02-04 20:51:45,003 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 20:51:45,004 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 20:51:45,005 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 20:51:45,005 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 20:51:45,010 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 20:51:45,011 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 08:51:44" (1/1) ... [2018-02-04 20:51:45,013 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 08:51:45, skipping insertion in model container [2018-02-04 20:51:45,014 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 08:51:44" (1/1) ... [2018-02-04 20:51:45,024 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 20:51:45,057 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 20:51:45,136 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 20:51:45,145 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 20:51:45,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:51:45 WrapperNode [2018-02-04 20:51:45,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 20:51:45,151 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 20:51:45,151 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 20:51:45,151 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 20:51:45,164 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:51:45" (1/1) ... [2018-02-04 20:51:45,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:51:45" (1/1) ... [2018-02-04 20:51:45,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:51:45" (1/1) ... [2018-02-04 20:51:45,173 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:51:45" (1/1) ... [2018-02-04 20:51:45,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:51:45" (1/1) ... [2018-02-04 20:51:45,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:51:45" (1/1) ... [2018-02-04 20:51:45,177 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:51:45" (1/1) ... [2018-02-04 20:51:45,178 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 20:51:45,178 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 20:51:45,179 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 20:51:45,179 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 20:51:45,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:51:45" (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 20:51:45,214 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 20:51:45,214 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 20:51:45,214 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-02-04 20:51:45,214 INFO L136 BoogieDeclarations]: Found implementation of procedure h5 [2018-02-04 20:51:45,214 INFO L136 BoogieDeclarations]: Found implementation of procedure g5 [2018-02-04 20:51:45,214 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-02-04 20:51:45,214 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 20:51:45,214 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 20:51:45,214 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 20:51:45,214 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 20:51:45,215 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 20:51:45,215 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 20:51:45,215 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 20:51:45,215 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-02-04 20:51:45,215 INFO L128 BoogieDeclarations]: Found specification of procedure h5 [2018-02-04 20:51:45,215 INFO L128 BoogieDeclarations]: Found specification of procedure g5 [2018-02-04 20:51:45,215 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-02-04 20:51:45,215 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 20:51:45,215 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 20:51:45,215 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 20:51:45,314 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 20:51:45,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 08:51:45 BoogieIcfgContainer [2018-02-04 20:51:45,315 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 20:51:45,315 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 20:51:45,315 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 20:51:45,317 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 20:51:45,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 08:51:44" (1/3) ... [2018-02-04 20:51:45,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5db8712a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 08:51:45, skipping insertion in model container [2018-02-04 20:51:45,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:51:45" (2/3) ... [2018-02-04 20:51:45,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5db8712a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 08:51:45, skipping insertion in model container [2018-02-04 20:51:45,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 08:51:45" (3/3) ... [2018-02-04 20:51:45,319 INFO L107 eAbstractionObserver]: Analyzing ICFG memleaks_test5_true-valid-memsafety_true-termination.i [2018-02-04 20:51:45,324 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-04 20:51:45,328 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-02-04 20:51:45,361 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 20:51:45,361 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 20:51:45,361 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-02-04 20:51:45,361 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-04 20:51:45,362 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 20:51:45,362 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 20:51:45,362 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 20:51:45,362 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 20:51:45,363 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 20:51:45,375 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-02-04 20:51:45,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-04 20:51:45,385 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:51:45,385 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 20:51:45,386 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-02-04 20:51:45,390 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 20:51:45,400 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:51:45,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:51:45,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:51:45,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:51:45,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:51:45,554 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 20:51:45,572 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:51:45,573 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-02-04 20:51:45,573 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:51:45,573 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 20:51:45,574 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 20:51:45,574 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 20:51:45,574 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-02-04 20:51:45,581 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-02-04 20:51:45,582 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-02-04 20:51:45,583 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 11 states. [2018-02-04 20:51:45,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:51:45,951 INFO L93 Difference]: Finished difference Result 56 states and 58 transitions. [2018-02-04 20:51:45,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-02-04 20:51:45,952 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 20 [2018-02-04 20:51:45,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:51:45,960 INFO L225 Difference]: With dead ends: 56 [2018-02-04 20:51:45,961 INFO L226 Difference]: Without dead ends: 47 [2018-02-04 20:51:45,963 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 20:51:45,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-02-04 20:51:45,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 42. [2018-02-04 20:51:45,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-02-04 20:51:45,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2018-02-04 20:51:45,989 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 20 [2018-02-04 20:51:45,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:51:45,990 INFO L432 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2018-02-04 20:51:45,990 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-02-04 20:51:45,990 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2018-02-04 20:51:45,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-04 20:51:45,991 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:51:45,991 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 20:51:45,991 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-02-04 20:51:45,991 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 20:51:45,994 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:51:46,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:51:46,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:51:46,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:51:46,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:51:46,100 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 20:51:46,117 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:51:46,118 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-02-04 20:51:46,118 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:51:46,118 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 20:51:46,119 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 20:51:46,119 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 20:51:46,120 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-02-04 20:51:46,121 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-02-04 20:51:46,121 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-02-04 20:51:46,121 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand 11 states. [2018-02-04 20:51:46,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:51:46,340 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2018-02-04 20:51:46,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-02-04 20:51:46,340 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 20 [2018-02-04 20:51:46,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:51:46,341 INFO L225 Difference]: With dead ends: 47 [2018-02-04 20:51:46,341 INFO L226 Difference]: Without dead ends: 32 [2018-02-04 20:51:46,342 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 20:51:46,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-02-04 20:51:46,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2018-02-04 20:51:46,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-02-04 20:51:46,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2018-02-04 20:51:46,344 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 20 [2018-02-04 20:51:46,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:51:46,344 INFO L432 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2018-02-04 20:51:46,344 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-02-04 20:51:46,344 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2018-02-04 20:51:46,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-04 20:51:46,345 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:51:46,345 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 20:51:46,345 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-02-04 20:51:46,345 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) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:51:46,348 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:51:46,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:51:46,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:51:46,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:51:46,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:51:46,410 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 20:51:46,427 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:51:46,427 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-02-04 20:51:46,427 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:51:46,427 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 20:51:46,427 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 20:51:46,428 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 20:51:46,428 INFO L409 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-02-04 20:51:46,428 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-02-04 20:51:46,428 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-02-04 20:51:46,428 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand 12 states. [2018-02-04 20:51:46,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:51:46,530 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2018-02-04 20:51:46,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-02-04 20:51:46,530 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2018-02-04 20:51:46,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:51:46,531 INFO L225 Difference]: With dead ends: 31 [2018-02-04 20:51:46,531 INFO L226 Difference]: Without dead ends: 31 [2018-02-04 20:51:46,532 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 20:51:46,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-02-04 20:51:46,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2018-02-04 20:51:46,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-02-04 20:51:46,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2018-02-04 20:51:46,535 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 22 [2018-02-04 20:51:46,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:51:46,535 INFO L432 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2018-02-04 20:51:46,535 INFO L433 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-02-04 20:51:46,535 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2018-02-04 20:51:46,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-04 20:51:46,536 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:51:46,536 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 20:51:46,536 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-02-04 20:51:46,536 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 20:51:46,539 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:51:46,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:51:46,546 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 20:51:46,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:51:46,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:51:46,578 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier WARNING: array quantifier [2018-02-04 20:51:46,619 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:51:46,620 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:51:46,637 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 20:51:46,638 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 20:51:46,640 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 20:51:46,640 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-02-04 20:51:46,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:51:46,683 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 20:51:46,707 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:51:46,707 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-02-04 20:51:46,707 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:51:46,708 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 20:51:46,708 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 20:51:46,708 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 20:51:46,708 INFO L409 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-02-04 20:51:46,708 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-02-04 20:51:46,709 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-02-04 20:51:46,709 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand 12 states. [2018-02-04 20:51:46,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:51:46,846 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2018-02-04 20:51:46,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-02-04 20:51:46,846 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2018-02-04 20:51:46,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:51:46,846 INFO L225 Difference]: With dead ends: 32 [2018-02-04 20:51:46,847 INFO L226 Difference]: Without dead ends: 32 [2018-02-04 20:51:46,847 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2018-02-04 20:51:46,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-02-04 20:51:46,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 28. [2018-02-04 20:51:46,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-02-04 20:51:46,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2018-02-04 20:51:46,849 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 22 [2018-02-04 20:51:46,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:51:46,849 INFO L432 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2018-02-04 20:51:46,849 INFO L433 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-02-04 20:51:46,849 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2018-02-04 20:51:46,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-02-04 20:51:46,850 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:51:46,850 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 20:51:46,850 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-02-04 20:51:46,850 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 20:51:46,852 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:51:46,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:51:46,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:51:46,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:51:46,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:51:46,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:51:46,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:51:46,956 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 20:51:46,957 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:51:46,957 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-02-04 20:51:46,958 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:51:46,958 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 20:51:46,958 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 20:51:46,958 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 20:51:46,958 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-02-04 20:51:46,959 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-02-04 20:51:46,959 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2018-02-04 20:51:46,959 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 13 states. [2018-02-04 20:51:47,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:51:47,117 INFO L93 Difference]: Finished difference Result 30 states and 29 transitions. [2018-02-04 20:51:47,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-02-04 20:51:47,117 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 26 [2018-02-04 20:51:47,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:51:47,117 INFO L225 Difference]: With dead ends: 30 [2018-02-04 20:51:47,118 INFO L226 Difference]: Without dead ends: 28 [2018-02-04 20:51:47,118 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 20:51:47,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-02-04 20:51:47,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-02-04 20:51:47,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-02-04 20:51:47,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 27 transitions. [2018-02-04 20:51:47,120 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 27 transitions. Word has length 26 [2018-02-04 20:51:47,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:51:47,121 INFO L432 AbstractCegarLoop]: Abstraction has 28 states and 27 transitions. [2018-02-04 20:51:47,121 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-02-04 20:51:47,121 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 27 transitions. [2018-02-04 20:51:47,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-02-04 20:51:47,121 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:51:47,121 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 20:51:47,121 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-02-04 20:51:47,122 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 20:51:47,124 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:51:47,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:51:47,145 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier WARNING: array quantifier [2018-02-04 20:51:47,147 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:298) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:200) 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 20:51:47,153 INFO L168 Benchmark]: Toolchain (without parser) took 2149.82 ms. Allocated memory was 405.3 MB in the beginning and 616.6 MB in the end (delta: 211.3 MB). Free memory was 362.2 MB in the beginning and 495.6 MB in the end (delta: -133.4 MB). Peak memory consumption was 77.9 MB. Max. memory is 5.3 GB. [2018-02-04 20:51:47,154 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 405.3 MB. Free memory is still 368.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 20:51:47,157 INFO L168 Benchmark]: CACSL2BoogieTranslator took 146.29 ms. Allocated memory is still 405.3 MB. Free memory was 362.2 MB in the beginning and 348.9 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. [2018-02-04 20:51:47,158 INFO L168 Benchmark]: Boogie Preprocessor took 27.07 ms. Allocated memory is still 405.3 MB. Free memory was 348.9 MB in the beginning and 347.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-04 20:51:47,158 INFO L168 Benchmark]: RCFGBuilder took 136.64 ms. Allocated memory is still 405.3 MB. Free memory was 347.6 MB in the beginning and 333.6 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 5.3 GB. [2018-02-04 20:51:47,159 INFO L168 Benchmark]: TraceAbstraction took 1837.08 ms. Allocated memory was 405.3 MB in the beginning and 616.6 MB in the end (delta: 211.3 MB). Free memory was 332.2 MB in the beginning and 495.6 MB in the end (delta: -163.3 MB). Peak memory consumption was 47.9 MB. Max. memory is 5.3 GB. [2018-02-04 20:51:47,161 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 405.3 MB. Free memory is still 368.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 146.29 ms. Allocated memory is still 405.3 MB. Free memory was 362.2 MB in the beginning and 348.9 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 27.07 ms. Allocated memory is still 405.3 MB. Free memory was 348.9 MB in the beginning and 347.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 136.64 ms. Allocated memory is still 405.3 MB. Free memory was 347.6 MB in the beginning and 333.6 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1837.08 ms. Allocated memory was 405.3 MB in the beginning and 616.6 MB in the end (delta: 211.3 MB). Free memory was 332.2 MB in the beginning and 495.6 MB in the end (delta: -163.3 MB). Peak memory consumption was 47.9 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_20-51-47-170.csv Received shutdown request...