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_test18_3_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:47:37,798 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:47:37,799 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:47:37,811 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:47:37,812 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:47:37,812 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:47:37,813 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:47:37,815 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:47:37,816 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:47:37,817 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:47:37,817 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 04:47:37,818 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 04:47:37,818 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 04:47:37,819 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 04:47:37,820 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 04:47:37,822 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 04:47:37,823 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 04:47:37,825 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 04:47:37,826 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 04:47:37,827 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 04:47:37,828 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-04 04:47:37,832 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 04:47:37,832 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 04:47:37,833 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 04:47:37,842 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:47:37,842 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:47:37,843 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:47:37,843 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:47:37,843 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:47:37,843 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:47:37,843 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:47:37,844 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:47:37,844 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:47:37,844 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:47:37,844 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:47:37,844 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:47:37,844 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:47:37,844 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:47:37,845 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:47:37,845 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:47:37,845 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:47:37,845 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:47:37,845 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:47:37,845 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:47:37,845 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:47:37,846 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:47:37,846 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-02-04 04:47:37,846 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-02-04 04:47:37,846 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:47:37,874 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:47:37,883 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:47:37,886 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:47:37,887 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:47:37,887 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:47:37,888 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test18_3_false-valid-memtrack_true-termination.i [2018-02-04 04:47:38,035 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:47:38,036 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:47:38,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:47:38,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:47:38,040 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:47:38,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:47:38" (1/1) ... [2018-02-04 04:47:38,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@355ef6a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:47:38, skipping insertion in model container [2018-02-04 04:47:38,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:47:38" (1/1) ... [2018-02-04 04:47:38,053 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:47:38,089 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:47:38,181 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:47:38,193 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:47:38,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:47:38 WrapperNode [2018-02-04 04:47:38,196 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:47:38,197 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:47:38,197 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:47:38,197 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:47:38,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:47:38" (1/1) ... [2018-02-04 04:47:38,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:47:38" (1/1) ... [2018-02-04 04:47:38,216 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:47:38" (1/1) ... [2018-02-04 04:47:38,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:47:38" (1/1) ... [2018-02-04 04:47:38,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:47:38" (1/1) ... [2018-02-04 04:47:38,220 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:47:38" (1/1) ... [2018-02-04 04:47:38,221 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:47:38" (1/1) ... [2018-02-04 04:47:38,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:47:38,222 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:47:38,222 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:47:38,222 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:47:38,223 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:47:38" (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 04:47:38,255 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:47:38,256 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:47:38,256 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-02-04 04:47:38,256 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-02-04 04:47:38,256 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:47:38,256 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-04 04:47:38,256 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-04 04:47:38,256 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:47:38,256 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:47:38,256 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:47:38,256 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 04:47:38,256 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 04:47:38,256 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-02-04 04:47:38,257 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-02-04 04:47:38,257 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:47:38,257 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:47:38,257 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:47:38,361 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:47:38,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:47:38 BoogieIcfgContainer [2018-02-04 04:47:38,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:47:38,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:47:38,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:47:38,363 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:47:38,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:47:38" (1/3) ... [2018-02-04 04:47:38,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d7bfb50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:47:38, skipping insertion in model container [2018-02-04 04:47:38,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:47:38" (2/3) ... [2018-02-04 04:47:38,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d7bfb50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:47:38, skipping insertion in model container [2018-02-04 04:47:38,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:47:38" (3/3) ... [2018-02-04 04:47:38,365 INFO L107 eAbstractionObserver]: Analyzing ICFG memleaks_test18_3_false-valid-memtrack_true-termination.i [2018-02-04 04:47:38,370 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:47:38,377 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-02-04 04:47:38,408 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:47:38,408 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:47:38,408 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-02-04 04:47:38,408 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-04 04:47:38,408 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:47:38,408 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:47:38,408 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:47:38,408 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:47:38,409 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:47:38,419 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-02-04 04:47:38,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-02-04 04:47:38,425 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:47:38,426 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:47:38,426 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-02-04 04:47:38,429 INFO L82 PathProgramCache]: Analyzing trace with hash -144006031, 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 04:47:38,440 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:47:38,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:47:38,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:47:38,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:47:38,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:47:38,552 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 04:47:38,570 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:47:38,570 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:47:38,571 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:47:38,572 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 04:47:38,572 INFO L182 omatonBuilderFactory]: Interpolants [34#true, 50#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 35#false, 51#(and (= |#valid| |old(#valid)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)), 39#(= |#valid| |old(#valid)|), 56#(and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|))] [2018-02-04 04:47:38,572 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 04:47:38,573 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:47:38,580 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:47:38,580 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-02-04 04:47:38,582 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 6 states. [2018-02-04 04:47:38,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:47:38,781 INFO L93 Difference]: Finished difference Result 58 states and 69 transitions. [2018-02-04 04:47:38,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:47:38,783 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-02-04 04:47:38,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:47:38,792 INFO L225 Difference]: With dead ends: 58 [2018-02-04 04:47:38,792 INFO L226 Difference]: Without dead ends: 47 [2018-02-04 04:47:38,794 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-02-04 04:47:38,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-02-04 04:47:38,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 38. [2018-02-04 04:47:38,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-02-04 04:47:38,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2018-02-04 04:47:38,827 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 17 [2018-02-04 04:47:38,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:47:38,827 INFO L432 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2018-02-04 04:47:38,827 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:47:38,827 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2018-02-04 04:47:38,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-04 04:47:38,829 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:47:38,829 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:47:38,829 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-02-04 04:47:38,829 INFO L82 PathProgramCache]: Analyzing trace with hash -716261389, 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 04:47:38,833 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:47:38,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:47:38,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:47:38,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:47:38,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:47:38,946 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 04:47:38,962 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:47:38,962 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-02-04 04:47:38,962 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:47:38,962 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 04:47:38,963 INFO L182 omatonBuilderFactory]: Interpolants [182#(not (= 0 |entry_point_#t~ret2.base|)), 183#(not (= 0 entry_point_~array~0.base)), 184#(and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)), 185#(not (= 0 |ldv_malloc_#t~malloc1.base|)), 186#(not (= 0 |ldv_malloc_#res.base|)), 157#true, 158#false, 174#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 175#(and (= |#valid| |old(#valid)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))] [2018-02-04 04:47:38,963 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 04:47:38,964 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-02-04 04:47:38,964 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-02-04 04:47:38,964 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-02-04 04:47:38,965 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand 9 states. [2018-02-04 04:47:39,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:47:39,210 INFO L93 Difference]: Finished difference Result 57 states and 67 transitions. [2018-02-04 04:47:39,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-04 04:47:39,211 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-02-04 04:47:39,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:47:39,212 INFO L225 Difference]: With dead ends: 57 [2018-02-04 04:47:39,212 INFO L226 Difference]: Without dead ends: 57 [2018-02-04 04:47:39,213 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2018-02-04 04:47:39,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-02-04 04:47:39,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 38. [2018-02-04 04:47:39,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-02-04 04:47:39,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2018-02-04 04:47:39,218 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 19 [2018-02-04 04:47:39,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:47:39,218 INFO L432 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2018-02-04 04:47:39,218 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-02-04 04:47:39,221 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2018-02-04 04:47:39,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-02-04 04:47:39,222 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:47:39,222 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] [2018-02-04 04:47:39,222 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-02-04 04:47:39,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1119113233, 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 04:47:39,225 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:47:39,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:47:39,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:47:39,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:47:39,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:47:39,272 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 04:47:39,287 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:47:39,288 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-04 04:47:39,288 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:47:39,288 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 04:47:39,288 INFO L182 omatonBuilderFactory]: Interpolants [289#true, 290#false, 308#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 309#(and (= |#valid| |old(#valid)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)), 310#(= 10 entry_point_~len~0), 317#(< entry_point_~i~0 entry_point_~len~0), 318#(and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|))] [2018-02-04 04:47:39,288 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 04:47:39,289 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-04 04:47:39,289 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-04 04:47:39,289 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-02-04 04:47:39,289 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand 7 states. [2018-02-04 04:47:39,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:47:39,421 INFO L93 Difference]: Finished difference Result 49 states and 56 transitions. [2018-02-04 04:47:39,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-02-04 04:47:39,421 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-02-04 04:47:39,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:47:39,422 INFO L225 Difference]: With dead ends: 49 [2018-02-04 04:47:39,422 INFO L226 Difference]: Without dead ends: 49 [2018-02-04 04:47:39,422 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2018-02-04 04:47:39,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-02-04 04:47:39,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 40. [2018-02-04 04:47:39,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-02-04 04:47:39,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 47 transitions. [2018-02-04 04:47:39,426 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 47 transitions. Word has length 21 [2018-02-04 04:47:39,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:47:39,426 INFO L432 AbstractCegarLoop]: Abstraction has 40 states and 47 transitions. [2018-02-04 04:47:39,426 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-04 04:47:39,427 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 47 transitions. [2018-02-04 04:47:39,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-02-04 04:47:39,427 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:47:39,427 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:47:39,427 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-02-04 04:47:39,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1380395530, 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 04:47:39,432 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:47:39,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:47:39,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:47:39,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:47:39,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:47:39,500 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-04 04:47:39,527 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 04:47:39,527 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-02-04 04:47:39,528 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:47:39,528 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-04 04:47:39,528 INFO L182 omatonBuilderFactory]: Interpolants [436#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 421#true, 437#(and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)), 422#false, 438#(and (= 0 |ldv_malloc_#res.offset|) (= 0 |ldv_malloc_#res.base|)), 430#(and (= 0 |entry_point_#t~ret2.offset|) (= 0 |entry_point_#t~ret2.base|)), 431#(and (= entry_point_~array~0.base 0) (= entry_point_~array~0.offset 0))] [2018-02-04 04:47:39,528 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-04 04:47:39,528 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-04 04:47:39,528 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-04 04:47:39,528 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-02-04 04:47:39,528 INFO L87 Difference]: Start difference. First operand 40 states and 47 transitions. Second operand 7 states. [2018-02-04 04:47:39,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:47:39,666 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2018-02-04 04:47:39,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:47:39,666 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-02-04 04:47:39,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:47:39,667 INFO L225 Difference]: With dead ends: 34 [2018-02-04 04:47:39,667 INFO L226 Difference]: Without dead ends: 32 [2018-02-04 04:47:39,667 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-02-04 04:47:39,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-02-04 04:47:39,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-02-04 04:47:39,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-02-04 04:47:39,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2018-02-04 04:47:39,671 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 23 [2018-02-04 04:47:39,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:47:39,671 INFO L432 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2018-02-04 04:47:39,671 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-04 04:47:39,671 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2018-02-04 04:47:39,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-02-04 04:47:39,672 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:47:39,672 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:47:39,672 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-02-04 04:47:39,672 INFO L82 PathProgramCache]: Analyzing trace with hash 679154700, 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 04:47:39,676 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:47:39,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:47:39,689 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 04:47:39,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:47:39,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:47:39,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:47:39,740 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-04 04:47:39,756 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 04:47:39,757 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-02-04 04:47:39,757 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:47:39,757 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-04 04:47:39,757 INFO L182 omatonBuilderFactory]: Interpolants [514#true, 515#false, 531#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 532#(and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)), 533#(= |#valid| |old(#valid)|), 534#(= |#valid| (store |old(#valid)| |ldv_malloc_#t~malloc1.base| 1)), 535#(= 1 (select |#valid| |ldv_malloc_#res.base|)), 525#(= 1 (select |#valid| |entry_point_#t~ret2.base|)), 526#(= 1 (select |#valid| entry_point_~array~0.base))] [2018-02-04 04:47:39,757 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-04 04:47:39,757 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-02-04 04:47:39,757 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-02-04 04:47:39,757 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-02-04 04:47:39,757 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand 9 states. [2018-02-04 04:47:39,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:47:39,857 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2018-02-04 04:47:39,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 04:47:39,857 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2018-02-04 04:47:39,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:47:39,858 INFO L225 Difference]: With dead ends: 31 [2018-02-04 04:47:39,858 INFO L226 Difference]: Without dead ends: 31 [2018-02-04 04:47:39,858 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-02-04 04:47:39,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-02-04 04:47:39,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-02-04 04:47:39,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-02-04 04:47:39,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2018-02-04 04:47:39,860 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 25 [2018-02-04 04:47:39,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:47:39,860 INFO L432 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2018-02-04 04:47:39,860 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-02-04 04:47:39,860 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2018-02-04 04:47:39,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-02-04 04:47:39,861 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:47:39,861 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:47:39,861 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-02-04 04:47:39,861 INFO L82 PathProgramCache]: Analyzing trace with hash 679154701, 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 04:47:39,863 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:47:39,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:47:39,889 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier Unsupported proof rule: (let ((a!1 (= (+ 0 0 (* (- 1) (select |old(#length)_18| |ldv_malloc_#t~malloc1.base_10|))) (* (- 1) (select |old(#length)_18| |ldv_malloc_#t~malloc1.base_10|))))) (rewrite a!1)) [2018-02-04 04:47:39,890 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 132 column 570: theory not supported by interpolation or bad proof at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1420) 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 04:47:39,892 INFO L168 Benchmark]: Toolchain (without parser) took 1856.45 ms. Allocated memory was 404.2 MB in the beginning and 624.4 MB in the end (delta: 220.2 MB). Free memory was 361.1 MB in the beginning and 578.7 MB in the end (delta: -217.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:47:39,893 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 404.2 MB. Free memory is still 367.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:47:39,893 INFO L168 Benchmark]: CACSL2BoogieTranslator took 160.13 ms. Allocated memory is still 404.2 MB. Free memory was 361.1 MB in the beginning and 347.8 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. [2018-02-04 04:47:39,893 INFO L168 Benchmark]: Boogie Preprocessor took 24.93 ms. Allocated memory is still 404.2 MB. Free memory was 347.8 MB in the beginning and 346.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-04 04:47:39,894 INFO L168 Benchmark]: RCFGBuilder took 139.24 ms. Allocated memory is still 404.2 MB. Free memory was 346.5 MB in the beginning and 331.2 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 5.3 GB. [2018-02-04 04:47:39,894 INFO L168 Benchmark]: TraceAbstraction took 1529.79 ms. Allocated memory was 404.2 MB in the beginning and 624.4 MB in the end (delta: 220.2 MB). Free memory was 331.2 MB in the beginning and 579.5 MB in the end (delta: -248.3 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:47:39,897 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 404.2 MB. Free memory is still 367.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 160.13 ms. Allocated memory is still 404.2 MB. Free memory was 361.1 MB in the beginning and 347.8 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 24.93 ms. Allocated memory is still 404.2 MB. Free memory was 347.8 MB in the beginning and 346.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 139.24 ms. Allocated memory is still 404.2 MB. Free memory was 346.5 MB in the beginning and 331.2 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1529.79 ms. Allocated memory was 404.2 MB in the beginning and 624.4 MB in the end (delta: 220.2 MB). Free memory was 331.2 MB in the beginning and 579.5 MB in the end (delta: -248.3 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: line 132 column 570: theory not supported by interpolation or bad proof de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: line 132 column 570: theory not supported by interpolation or bad proof: de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1420) 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_test18_3_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_04-47-39-904.csv Received shutdown request...