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/memsafety/test-0158_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:32:20,653 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:32:20,655 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:32:20,666 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:32:20,666 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:32:20,667 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:32:20,667 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:32:20,669 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:32:20,670 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:32:20,671 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:32:20,671 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-02-04 04:32:20,685 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 04:32:20,694 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:32:20,694 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:32:20,695 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:32:20,695 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:32:20,695 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:32:20,695 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:32:20,695 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:32:20,695 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:32:20,695 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:32:20,696 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:32:20,696 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:32:20,696 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:32:20,696 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:32:20,696 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:32:20,696 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:32:20,696 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:32:20,696 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:32:20,696 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:32:20,696 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:32:20,697 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:32:20,697 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:32:20,697 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:32:20,697 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-02-04 04:32:20,697 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-02-04 04:32:20,697 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:32:20,722 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:32:20,731 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:32:20,733 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:32:20,734 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:32:20,734 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:32:20,735 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/test-0158_true-valid-memsafety_true-termination.i [2018-02-04 04:32:20,844 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:32:20,845 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:32:20,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:32:20,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:32:20,850 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:32:20,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:32:20" (1/1) ... [2018-02-04 04:32:20,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ca6dceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:32:20, skipping insertion in model container [2018-02-04 04:32:20,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:32:20" (1/1) ... [2018-02-04 04:32:20,866 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:32:20,892 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:32:20,989 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:32:21,000 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:32:21,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:32:21 WrapperNode [2018-02-04 04:32:21,005 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:32:21,005 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:32:21,005 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:32:21,006 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:32:21,014 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:32:21" (1/1) ... [2018-02-04 04:32:21,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:32:21" (1/1) ... [2018-02-04 04:32:21,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:32:21" (1/1) ... [2018-02-04 04:32:21,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:32:21" (1/1) ... [2018-02-04 04:32:21,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:32:21" (1/1) ... [2018-02-04 04:32:21,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:32:21" (1/1) ... [2018-02-04 04:32:21,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:32:21" (1/1) ... [2018-02-04 04:32:21,023 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:32:21,024 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:32:21,024 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:32:21,024 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:32:21,025 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:32:21" (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 04:32:21,072 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:32:21,072 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:32:21,072 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:32:21,072 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-04 04:32:21,073 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-04 04:32:21,073 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:32:21,073 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:32:21,073 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:32:21,073 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 04:32:21,073 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 04:32:21,073 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:32:21,073 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:32:21,074 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:32:21,174 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:32:21,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:32:21 BoogieIcfgContainer [2018-02-04 04:32:21,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:32:21,175 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:32:21,175 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:32:21,178 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:32:21,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:32:20" (1/3) ... [2018-02-04 04:32:21,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4474836b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:32:21, skipping insertion in model container [2018-02-04 04:32:21,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:32:21" (2/3) ... [2018-02-04 04:32:21,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4474836b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:32:21, skipping insertion in model container [2018-02-04 04:32:21,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:32:21" (3/3) ... [2018-02-04 04:32:21,182 INFO L107 eAbstractionObserver]: Analyzing ICFG test-0158_true-valid-memsafety_true-termination.i [2018-02-04 04:32:21,190 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:32:21,195 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-02-04 04:32:21,233 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:32:21,233 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:32:21,233 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-02-04 04:32:21,233 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-04 04:32:21,233 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:32:21,234 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:32:21,234 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:32:21,234 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:32:21,234 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:32:21,243 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2018-02-04 04:32:21,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-04 04:32:21,249 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:32:21,250 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:32:21,250 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-02-04 04:32:21,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1417784654, 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 04:32:21,266 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:32:21,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:32:21,291 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 04:32:21,300 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:21,300 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:21,301 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:21,302 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:21,334 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |c_#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp)) is different from true [2018-02-04 04:32:21,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:32:21,377 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 04:32:21,395 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:32:21,395 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:32:21,396 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:32:21,396 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 04:32:21,396 INFO L182 omatonBuilderFactory]: Interpolants [35#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp)), 36#(= 1 (select |#valid| |main_~#data~0.base|)), 37#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 30#true, 31#false] [2018-02-04 04:32:21,396 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 04:32:21,397 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:32:21,405 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:32:21,406 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2018-02-04 04:32:21,407 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 5 states. [2018-02-04 04:32:21,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:32:21,495 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2018-02-04 04:32:21,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:32:21,496 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2018-02-04 04:32:21,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:32:21,502 INFO L225 Difference]: With dead ends: 24 [2018-02-04 04:32:21,502 INFO L226 Difference]: Without dead ends: 21 [2018-02-04 04:32:21,503 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=12, Unknown=2, NotChecked=6, Total=30 [2018-02-04 04:32:21,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-02-04 04:32:21,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-02-04 04:32:21,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-02-04 04:32:21,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2018-02-04 04:32:21,537 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 8 [2018-02-04 04:32:21,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:32:21,538 INFO L432 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2018-02-04 04:32:21,538 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:32:21,538 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2018-02-04 04:32:21,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-04 04:32:21,538 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:32:21,539 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:32:21,539 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-02-04 04:32:21,540 INFO L82 PathProgramCache]: Analyzing trace with hash 1417784655, 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) [2018-02-04 04:32:21,545 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:32:21,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:32:21,558 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier WARNING: array quantifier [2018-02-04 04:32:21,560 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:21,560 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:21,560 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:21,561 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:21,561 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:21,561 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:21,572 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 9 treesize of output 8 [2018-02-04 04:32:21,574 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 04:32:21,588 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 04:32:21,588 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:9 [2018-02-04 04:32:21,595 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (exists ((%2 (Array Int Int))) (! (and (= (store |c_#valid| %1 1) (store %0 %1 1)) (= (store |c_#length| %1 10) (store %2 %1 10))) :qid itp)) :qid itp)) :qid itp)) is different from true [2018-02-04 04:32:21,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:32:21,667 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 04:32:21,697 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:32:21,698 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:32:21,698 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:32:21,698 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 04:32:21,698 INFO L182 omatonBuilderFactory]: Interpolants [85#true, 86#false, 90#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (exists ((%2 (Array Int Int))) (! (and (= (store |#valid| %1 1) (store %0 %1 1)) (= (store |#length| %1 10) (store %2 %1 10))) :qid itp)) :qid itp)) :qid itp)), 91#(and (= 1 (select |#valid| |main_~#data~0.base|)) (= 0 |main_~#data~0.offset|) (= 10 (select |#length| |main_~#data~0.base|))), 92#(and (<= 0 |main_~#data~0.offset|) (<= (+ |main_~#data~0.offset| 4) (select |#length| |main_~#data~0.base|)) (= 10 (select |#length| |main_~#data~0.base|))), 93#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 04:32:21,699 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 04:32:21,700 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:32:21,700 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:32:21,700 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=13, Unknown=1, NotChecked=6, Total=30 [2018-02-04 04:32:21,700 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand 6 states. [2018-02-04 04:32:21,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:32:21,815 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-02-04 04:32:21,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:32:21,815 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2018-02-04 04:32:21,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:32:21,816 INFO L225 Difference]: With dead ends: 18 [2018-02-04 04:32:21,816 INFO L226 Difference]: Without dead ends: 18 [2018-02-04 04:32:21,817 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=4, NotChecked=8, Total=42 [2018-02-04 04:32:21,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-02-04 04:32:21,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-02-04 04:32:21,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-02-04 04:32:21,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2018-02-04 04:32:21,820 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 8 [2018-02-04 04:32:21,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:32:21,821 INFO L432 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2018-02-04 04:32:21,821 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:32:21,821 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2018-02-04 04:32:21,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-02-04 04:32:21,821 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:32:21,822 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:32:21,822 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-02-04 04:32:21,822 INFO L82 PathProgramCache]: Analyzing trace with hash 514218689, 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 04:32:21,826 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:32:21,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:32:21,842 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier WARNING: array quantifier [2018-02-04 04:32:21,844 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:21,844 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:21,844 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:21,845 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:21,851 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int (Array Int Int)))) (! (forall ((%1 Int) (%2 Int)) (! (let ((.cse0 (store (select |c_#memory_$Pointer$.offset| %2) 0 0))) (= (store %0 %1 .cse0) (store |c_#memory_$Pointer$.offset| %1 .cse0))) :qid itp)) :qid itp)) is different from true [2018-02-04 04:32:21,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:32:21,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:32:21,934 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:32:21,934 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-02-04 04:32:21,934 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:32:21,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:32:21,934 INFO L182 omatonBuilderFactory]: Interpolants [132#true, 133#false, 137#(exists ((%0 (Array Int (Array Int Int)))) (! (forall ((%1 Int) (%2 Int)) (! (= (store %0 %1 (store (select |#memory_$Pointer$.offset| %2) 0 0)) (store |#memory_$Pointer$.offset| %1 (store (select |#memory_$Pointer$.offset| %2) 0 0))) :qid itp)) :qid itp)), 138#(= 0 |main_~#data~0.offset|), 139#(and (= 0 (select (store (select |#memory_$Pointer$.offset| |main_~#data~0.base|) |main_~#data~0.offset| |main_#t~malloc0.offset|) 0)) (= 0 |main_~#data~0.offset|)), 140#(and (= 0 |main_~#data~0.offset|) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#data~0.base|) 0))), 141#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_~#data~0.base|) 0)) (= (select (select |#memory_$Pointer$.offset| |main_~#data~0.base|) |main_~#data~0.offset|) (select (select |#memory_$Pointer$.offset| |main_~#data~0.base|) 0))), 142#(= 0 |main_#t~mem3.offset|), 143#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 04:32:21,934 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 04:32:21,934 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-02-04 04:32:21,935 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-02-04 04:32:21,935 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=41, Unknown=1, NotChecked=12, Total=72 [2018-02-04 04:32:21,935 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 9 states. [2018-02-04 04:32:22,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:32:22,091 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2018-02-04 04:32:22,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-04 04:32:22,092 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 11 [2018-02-04 04:32:22,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:32:22,092 INFO L225 Difference]: With dead ends: 17 [2018-02-04 04:32:22,092 INFO L226 Difference]: Without dead ends: 17 [2018-02-04 04:32:22,093 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=77, Unknown=2, NotChecked=18, Total=132 [2018-02-04 04:32:22,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-02-04 04:32:22,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-02-04 04:32:22,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-02-04 04:32:22,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2018-02-04 04:32:22,095 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 11 [2018-02-04 04:32:22,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:32:22,096 INFO L432 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2018-02-04 04:32:22,096 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-02-04 04:32:22,096 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2018-02-04 04:32:22,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-02-04 04:32:22,096 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:32:22,096 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:32:22,097 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-02-04 04:32:22,097 INFO L82 PathProgramCache]: Analyzing trace with hash 514218690, 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 04:32:22,101 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:32:22,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:32:22,150 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier WARNING: array quantifier WARNING: array quantifier WARNING: array quantifier [2018-02-04 04:32:22,153 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:22,153 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:22,154 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:22,154 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:22,154 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:22,154 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:22,154 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:22,155 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:22,171 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int (Array Int Int)))) (! (forall ((%1 Int) (%2 Int)) (! (exists ((%3 (Array Int Int))) (! (forall ((%4 Int)) (! (= (store |c_#memory_$Pointer$.base| %1 (store (select |c_#memory_$Pointer$.base| %2) 0 %4)) (store %0 %1 (store %3 0 %4))) :qid itp)) :qid itp)) :qid itp)) :qid itp)) is different from true [2018-02-04 04:32:22,171 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:22,172 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:22,172 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:22,172 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:22,187 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%1 (Array Int Int)) (%0 (Array Int (Array Int Int)))) (! (let ((.cse0 (= |c_main_~#data~0.offset| 0))) (and .cse0 (or (not .cse0) (= 0 |c_main_~#data~0.offset|)) (forall ((%2 Int)) (! (= (store |c_#memory_$Pointer$.base| |c_main_~#data~0.base| (store (select |c_#memory_$Pointer$.base| |c_main_~#data~0.base|) 0 %2)) (store %0 |c_main_~#data~0.base| (store %1 0 %2))) :qid itp)))) :qid itp)) is different from true [2018-02-04 04:32:22,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:32:22,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:32:22,241 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:32:22,241 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-02-04 04:32:22,241 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:32:22,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:32:22,242 INFO L182 omatonBuilderFactory]: Interpolants [192#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_~#data~0.base|) 0))) (= 0 |main_~#data~0.offset|)), 193#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_~#data~0.base|) 0))) (= (select (select |#memory_$Pointer$.base| |main_~#data~0.base|) |main_~#data~0.offset|) (select (select |#memory_$Pointer$.base| |main_~#data~0.base|) 0))), 194#(= 1 (select |#valid| |main_#t~mem3.base|)), 195#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 184#true, 185#false, 189#(exists ((%0 (Array Int (Array Int Int)))) (! (forall ((%1 Int) (%2 Int)) (! (exists ((%3 (Array Int Int))) (! (forall ((%4 Int)) (! (= (store |#memory_$Pointer$.base| %1 (store (select |#memory_$Pointer$.base| %2) 0 %4)) (store %0 %1 (store %3 0 %4))) :qid itp)) :qid itp)) :qid itp)) :qid itp)), 190#(exists ((%1 (Array Int Int)) (%0 (Array Int (Array Int Int)))) (! (and (= |main_~#data~0.offset| 0) (or (not (= |main_~#data~0.offset| 0)) (= 0 |main_~#data~0.offset|)) (forall ((%2 Int)) (! (= (store |#memory_$Pointer$.base| |main_~#data~0.base| (store (select |#memory_$Pointer$.base| |main_~#data~0.base|) 0 %2)) (store %0 |main_~#data~0.base| (store %1 0 %2))) :qid itp))) :qid itp)), 191#(and (= 0 |main_~#data~0.offset|) (= 1 (select |#valid| |main_#t~malloc0.base|)))] [2018-02-04 04:32:22,242 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 04:32:22,242 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-02-04 04:32:22,242 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-02-04 04:32:22,242 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=32, Unknown=2, NotChecked=22, Total=72 [2018-02-04 04:32:22,242 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand 9 states. [2018-02-04 04:32:22,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:32:22,311 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2018-02-04 04:32:22,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-04 04:32:22,312 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 11 [2018-02-04 04:32:22,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:32:22,312 INFO L225 Difference]: With dead ends: 16 [2018-02-04 04:32:22,312 INFO L226 Difference]: Without dead ends: 16 [2018-02-04 04:32:22,312 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=63, Unknown=4, NotChecked=34, Total=132 [2018-02-04 04:32:22,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-02-04 04:32:22,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-02-04 04:32:22,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-02-04 04:32:22,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2018-02-04 04:32:22,315 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 11 [2018-02-04 04:32:22,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:32:22,315 INFO L432 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2018-02-04 04:32:22,315 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-02-04 04:32:22,315 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2018-02-04 04:32:22,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-04 04:32:22,315 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:32:22,316 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:32:22,316 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-02-04 04:32:22,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1518594947, 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 04:32:22,325 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:32:22,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:32:22,382 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier WARNING: array quantifier WARNING: array quantifier WARNING: array quantifier WARNING: array quantifier WARNING: array quantifier WARNING: array quantifier WARNING: array quantifier WARNING: array quantifier WARNING: array quantifier WARNING: array quantifier WARNING: array quantifier WARNING: array quantifier WARNING: array quantifier WARNING: array quantifier WARNING: array quantifier [2018-02-04 04:32:22,382 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Undeclared function symbol (array-ext (Array Int Int) (Array Int Int)) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:321) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.createTerm(Parser.java:802) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1304) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseInterpolants(Executor.java:255) at de.uni_freiburg.informatik.ultimate.smtsolver.external.ScriptorWithGetInterpolants.readInterpolants(ScriptorWithGetInterpolants.java:136) at de.uni_freiburg.informatik.ultimate.smtsolver.external.ScriptorWithGetInterpolants.getInterpolants(ScriptorWithGetInterpolants.java:64) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.getInterpolants(DiffWrapperScript.java:260) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:186) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:283) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:294) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:196) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.FixedTraceAbstractionRefinementStrategy.getTraceCheck(FixedTraceAbstractionRefinementStrategy.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:397) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:381) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:316) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:115) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:119) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-02-04 04:32:22,385 INFO L168 Benchmark]: Toolchain (without parser) took 1540.44 ms. Allocated memory was 399.0 MB in the beginning and 599.3 MB in the end (delta: 200.3 MB). Free memory was 357.0 MB in the beginning and 526.4 MB in the end (delta: -169.4 MB). Peak memory consumption was 30.9 MB. Max. memory is 5.3 GB. [2018-02-04 04:32:22,386 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 399.0 MB. Free memory is still 362.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:32:22,386 INFO L168 Benchmark]: CACSL2BoogieTranslator took 159.61 ms. Allocated memory is still 399.0 MB. Free memory was 355.7 MB in the beginning and 346.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 5.3 GB. [2018-02-04 04:32:22,387 INFO L168 Benchmark]: Boogie Preprocessor took 18.21 ms. Allocated memory is still 399.0 MB. Free memory was 346.4 MB in the beginning and 345.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-04 04:32:22,387 INFO L168 Benchmark]: RCFGBuilder took 150.69 ms. Allocated memory is still 399.0 MB. Free memory was 343.8 MB in the beginning and 329.0 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 5.3 GB. [2018-02-04 04:32:22,388 INFO L168 Benchmark]: TraceAbstraction took 1209.42 ms. Allocated memory was 399.0 MB in the beginning and 599.3 MB in the end (delta: 200.3 MB). Free memory was 329.0 MB in the beginning and 526.4 MB in the end (delta: -197.3 MB). Peak memory consumption was 3.0 MB. Max. memory is 5.3 GB. [2018-02-04 04:32:22,390 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 399.0 MB. Free memory is still 362.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 159.61 ms. Allocated memory is still 399.0 MB. Free memory was 355.7 MB in the beginning and 346.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 18.21 ms. Allocated memory is still 399.0 MB. Free memory was 346.4 MB in the beginning and 345.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 150.69 ms. Allocated memory is still 399.0 MB. Free memory was 343.8 MB in the beginning and 329.0 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1209.42 ms. Allocated memory was 399.0 MB in the beginning and 599.3 MB in the end (delta: 200.3 MB). Free memory was 329.0 MB in the beginning and 526.4 MB in the end (delta: -197.3 MB). Peak memory consumption was 3.0 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/test-0158_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_04-32-22-398.csv Received shutdown request...