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-0102_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:31:15,635 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:31:15,636 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:31:15,649 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:31:15,650 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:31:15,650 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:31:15,651 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:31:15,652 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:31:15,653 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:31:15,654 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:31:15,654 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 04:31:15,655 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 04:31:15,655 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 04:31:15,656 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 04:31:15,657 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 04:31:15,659 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 04:31:15,660 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 04:31:15,662 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 04:31:15,663 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 04:31:15,663 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 04:31:15,665 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-04 04:31:15,669 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 04:31:15,669 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 04:31:15,670 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 04:31:15,679 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:31:15,679 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:31:15,680 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:31:15,680 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:31:15,680 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:31:15,680 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:31:15,680 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:31:15,681 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:31:15,681 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:31:15,681 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:31:15,681 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:31:15,681 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:31:15,681 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:31:15,681 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:31:15,682 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:31:15,682 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:31:15,682 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:31:15,682 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:31:15,682 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:31:15,682 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:31:15,682 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:31:15,683 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:31:15,683 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-02-04 04:31:15,683 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-02-04 04:31:15,683 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:31:15,710 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:31:15,719 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:31:15,722 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:31:15,723 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:31:15,723 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:31:15,724 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/test-0102_false-valid-memtrack.i [2018-02-04 04:31:15,861 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:31:15,862 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:31:15,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:31:15,862 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:31:15,866 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:31:15,866 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:31:15" (1/1) ... [2018-02-04 04:31:15,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11cd7dc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:31:15, skipping insertion in model container [2018-02-04 04:31:15,868 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:31:15" (1/1) ... [2018-02-04 04:31:15,877 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:31:15,902 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:31:15,991 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:31:16,008 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:31:16,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:31:16 WrapperNode [2018-02-04 04:31:16,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:31:16,017 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:31:16,017 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:31:16,017 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:31:16,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:31:16" (1/1) ... [2018-02-04 04:31:16,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:31:16" (1/1) ... [2018-02-04 04:31:16,032 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:31:16" (1/1) ... [2018-02-04 04:31:16,032 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:31:16" (1/1) ... [2018-02-04 04:31:16,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:31:16" (1/1) ... [2018-02-04 04:31:16,040 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:31:16" (1/1) ... [2018-02-04 04:31:16,042 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:31:16" (1/1) ... [2018-02-04 04:31:16,044 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:31:16,044 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:31:16,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:31:16,045 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:31:16,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:31:16" (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 04:31:16,082 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:31:16,082 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:31:16,082 INFO L136 BoogieDeclarations]: Found implementation of procedure __list_add [2018-02-04 04:31:16,082 INFO L136 BoogieDeclarations]: Found implementation of procedure list_add_tail [2018-02-04 04:31:16,082 INFO L136 BoogieDeclarations]: Found implementation of procedure destroy_sub [2018-02-04 04:31:16,083 INFO L136 BoogieDeclarations]: Found implementation of procedure destroy_top [2018-02-04 04:31:16,083 INFO L136 BoogieDeclarations]: Found implementation of procedure insert_sub [2018-02-04 04:31:16,083 INFO L136 BoogieDeclarations]: Found implementation of procedure create_sub_list [2018-02-04 04:31:16,083 INFO L136 BoogieDeclarations]: Found implementation of procedure insert_top [2018-02-04 04:31:16,083 INFO L136 BoogieDeclarations]: Found implementation of procedure create_top [2018-02-04 04:31:16,083 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:31:16,083 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-04 04:31:16,083 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-04 04:31:16,083 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 04:31:16,084 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 04:31:16,084 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:31:16,084 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:31:16,084 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:31:16,084 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 04:31:16,084 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-02-04 04:31:16,084 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 04:31:16,084 INFO L128 BoogieDeclarations]: Found specification of procedure __list_add [2018-02-04 04:31:16,085 INFO L128 BoogieDeclarations]: Found specification of procedure list_add_tail [2018-02-04 04:31:16,085 INFO L128 BoogieDeclarations]: Found specification of procedure destroy_sub [2018-02-04 04:31:16,085 INFO L128 BoogieDeclarations]: Found specification of procedure destroy_top [2018-02-04 04:31:16,085 INFO L128 BoogieDeclarations]: Found specification of procedure insert_sub [2018-02-04 04:31:16,085 INFO L128 BoogieDeclarations]: Found specification of procedure create_sub_list [2018-02-04 04:31:16,085 INFO L128 BoogieDeclarations]: Found specification of procedure insert_top [2018-02-04 04:31:16,085 INFO L128 BoogieDeclarations]: Found specification of procedure create_top [2018-02-04 04:31:16,085 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:31:16,086 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:31:16,086 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:31:16,347 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:31:16,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:31:16 BoogieIcfgContainer [2018-02-04 04:31:16,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:31:16,349 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:31:16,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:31:16,351 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:31:16,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:31:15" (1/3) ... [2018-02-04 04:31:16,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62c7836c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:31:16, skipping insertion in model container [2018-02-04 04:31:16,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:31:16" (2/3) ... [2018-02-04 04:31:16,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62c7836c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:31:16, skipping insertion in model container [2018-02-04 04:31:16,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:31:16" (3/3) ... [2018-02-04 04:31:16,354 INFO L107 eAbstractionObserver]: Analyzing ICFG test-0102_false-valid-memtrack.i [2018-02-04 04:31:16,361 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:31:16,367 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 33 error locations. [2018-02-04 04:31:16,396 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:31:16,396 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:31:16,396 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-02-04 04:31:16,396 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-04 04:31:16,396 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:31:16,396 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:31:16,397 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:31:16,397 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:31:16,397 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:31:16,407 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states. [2018-02-04 04:31:16,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-02-04 04:31:16,415 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:31:16,415 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:31:16,415 INFO L371 AbstractCegarLoop]: === Iteration 1 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, insert_subErr0RequiresViolation, insert_subErr1RequiresViolation, destroy_subErr2RequiresViolation, destroy_subErr3RequiresViolation, destroy_subErr4RequiresViolation, destroy_subErr5RequiresViolation, destroy_subErr1RequiresViolation, destroy_subErr0RequiresViolation, create_sub_listErr1RequiresViolation, create_sub_listErr2RequiresViolation, create_sub_listErr0RequiresViolation, create_sub_listErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, list_add_tailErr0RequiresViolation, list_add_tailErr1RequiresViolation, destroy_topErr1RequiresViolation, destroy_topErr3RequiresViolation, destroy_topErr2RequiresViolation, destroy_topErr0RequiresViolation, destroy_topErr4RequiresViolation, destroy_topErr5RequiresViolation]=== [2018-02-04 04:31:16,418 INFO L82 PathProgramCache]: Analyzing trace with hash -475500327, 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 04:31:16,425 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:31:16,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:31:16,445 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 04:31:16,456 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:31:16,456 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:31:16,457 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:31:16,457 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:31:16,491 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 04:31:16,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:31:16,517 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 04:31:16,548 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:31:16,548 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:31:16,549 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:31:16,549 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 04:31:16,550 INFO L182 omatonBuilderFactory]: Interpolants [128#(= 1 (select |#valid| |main_~#top~1.base|)), 129#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 122#true, 123#false, 127#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp))] [2018-02-04 04:31:16,550 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 04:31:16,551 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:31:16,559 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:31:16,560 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2018-02-04 04:31:16,561 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 5 states. [2018-02-04 04:31:16,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:31:16,890 INFO L93 Difference]: Finished difference Result 144 states and 155 transitions. [2018-02-04 04:31:16,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:31:16,892 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2018-02-04 04:31:16,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:31:16,901 INFO L225 Difference]: With dead ends: 144 [2018-02-04 04:31:16,902 INFO L226 Difference]: Without dead ends: 141 [2018-02-04 04:31:16,903 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 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 04:31:16,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-02-04 04:31:16,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 114. [2018-02-04 04:31:16,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-02-04 04:31:16,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 119 transitions. [2018-02-04 04:31:16,980 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 119 transitions. Word has length 7 [2018-02-04 04:31:16,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:31:16,981 INFO L432 AbstractCegarLoop]: Abstraction has 114 states and 119 transitions. [2018-02-04 04:31:16,981 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:31:16,981 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 119 transitions. [2018-02-04 04:31:16,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-02-04 04:31:16,981 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:31:16,981 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:31:16,981 INFO L371 AbstractCegarLoop]: === Iteration 2 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, insert_subErr0RequiresViolation, insert_subErr1RequiresViolation, destroy_subErr2RequiresViolation, destroy_subErr3RequiresViolation, destroy_subErr4RequiresViolation, destroy_subErr5RequiresViolation, destroy_subErr1RequiresViolation, destroy_subErr0RequiresViolation, create_sub_listErr1RequiresViolation, create_sub_listErr2RequiresViolation, create_sub_listErr0RequiresViolation, create_sub_listErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, list_add_tailErr0RequiresViolation, list_add_tailErr1RequiresViolation, destroy_topErr1RequiresViolation, destroy_topErr3RequiresViolation, destroy_topErr2RequiresViolation, destroy_topErr0RequiresViolation, destroy_topErr4RequiresViolation, destroy_topErr5RequiresViolation]=== [2018-02-04 04:31:16,982 INFO L82 PathProgramCache]: Analyzing trace with hash -475500326, 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 04:31:16,985 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:31:16,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:31:16,993 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 04:31:16,996 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:31:16,996 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:31:16,996 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:31:16,996 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:31:17,000 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 8) (store |c_#length| %1 8)) :qid itp)) :qid itp)) is different from true [2018-02-04 04:31:17,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:31:17,031 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 04:31:17,047 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:31:17,047 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:31:17,047 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:31:17,047 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 04:31:17,047 INFO L182 omatonBuilderFactory]: Interpolants [390#true, 391#false, 395#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 8) (store |#length| %1 8)) :qid itp)) :qid itp)), 396#(and (= 8 (select |#length| |main_~#top~1.base|)) (<= (+ |main_~#top~1.offset| 4) (select |#length| |main_~#top~1.base|)) (<= 0 |main_~#top~1.offset|)), 397#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 04:31:17,047 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 04:31:17,048 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:31:17,048 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:31:17,048 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2018-02-04 04:31:17,049 INFO L87 Difference]: Start difference. First operand 114 states and 119 transitions. Second operand 5 states. [2018-02-04 04:31:17,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:31:17,310 INFO L93 Difference]: Finished difference Result 140 states and 151 transitions. [2018-02-04 04:31:17,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:31:17,311 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2018-02-04 04:31:17,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:31:17,312 INFO L225 Difference]: With dead ends: 140 [2018-02-04 04:31:17,312 INFO L226 Difference]: Without dead ends: 140 [2018-02-04 04:31:17,313 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 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 04:31:17,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-02-04 04:31:17,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 113. [2018-02-04 04:31:17,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-02-04 04:31:17,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 118 transitions. [2018-02-04 04:31:17,322 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 118 transitions. Word has length 7 [2018-02-04 04:31:17,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:31:17,322 INFO L432 AbstractCegarLoop]: Abstraction has 113 states and 118 transitions. [2018-02-04 04:31:17,322 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:31:17,322 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 118 transitions. [2018-02-04 04:31:17,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-04 04:31:17,322 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:31:17,326 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:31:17,326 INFO L371 AbstractCegarLoop]: === Iteration 3 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, insert_subErr0RequiresViolation, insert_subErr1RequiresViolation, destroy_subErr2RequiresViolation, destroy_subErr3RequiresViolation, destroy_subErr4RequiresViolation, destroy_subErr5RequiresViolation, destroy_subErr1RequiresViolation, destroy_subErr0RequiresViolation, create_sub_listErr1RequiresViolation, create_sub_listErr2RequiresViolation, create_sub_listErr0RequiresViolation, create_sub_listErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, list_add_tailErr0RequiresViolation, list_add_tailErr1RequiresViolation, destroy_topErr1RequiresViolation, destroy_topErr3RequiresViolation, destroy_topErr2RequiresViolation, destroy_topErr0RequiresViolation, destroy_topErr4RequiresViolation, destroy_topErr5RequiresViolation]=== [2018-02-04 04:31:17,326 INFO L82 PathProgramCache]: Analyzing trace with hash -1855608196, 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 04:31:17,329 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:31:17,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:31:17,339 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 04:31:17,347 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:31:17,347 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:31:17,348 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:31:17,348 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:31:17,403 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 8) (store |c_#length| %1 8)) :qid itp)) :qid itp)) is different from true [2018-02-04 04:31:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:31:17,452 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 04:31:17,470 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:31:17,470 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:31:17,470 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:31:17,471 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 04:31:17,471 INFO L182 omatonBuilderFactory]: Interpolants [658#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 8) (store |#length| %1 8)) :qid itp)) :qid itp)), 659#(and (<= (+ |main_~#top~1.offset| 8) (select |#length| |main_~#top~1.base|)) (= 8 (select |#length| |main_~#top~1.base|)) (<= 0 (+ |main_~#top~1.offset| 4))), 660#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 653#true, 654#false] [2018-02-04 04:31:17,471 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 04:31:17,471 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:31:17,471 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:31:17,471 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2018-02-04 04:31:17,471 INFO L87 Difference]: Start difference. First operand 113 states and 118 transitions. Second operand 5 states. [2018-02-04 04:31:17,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:31:17,626 INFO L93 Difference]: Finished difference Result 139 states and 150 transitions. [2018-02-04 04:31:17,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:31:17,626 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2018-02-04 04:31:17,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:31:17,627 INFO L225 Difference]: With dead ends: 139 [2018-02-04 04:31:17,627 INFO L226 Difference]: Without dead ends: 139 [2018-02-04 04:31:17,627 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 04:31:17,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2018-02-04 04:31:17,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 112. [2018-02-04 04:31:17,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-02-04 04:31:17,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 117 transitions. [2018-02-04 04:31:17,632 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 117 transitions. Word has length 8 [2018-02-04 04:31:17,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:31:17,632 INFO L432 AbstractCegarLoop]: Abstraction has 112 states and 117 transitions. [2018-02-04 04:31:17,632 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:31:17,632 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 117 transitions. [2018-02-04 04:31:17,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-04 04:31:17,632 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:31:17,632 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 04:31:17,632 INFO L371 AbstractCegarLoop]: === Iteration 4 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, insert_subErr0RequiresViolation, insert_subErr1RequiresViolation, destroy_subErr2RequiresViolation, destroy_subErr3RequiresViolation, destroy_subErr4RequiresViolation, destroy_subErr5RequiresViolation, destroy_subErr1RequiresViolation, destroy_subErr0RequiresViolation, create_sub_listErr1RequiresViolation, create_sub_listErr2RequiresViolation, create_sub_listErr0RequiresViolation, create_sub_listErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, list_add_tailErr0RequiresViolation, list_add_tailErr1RequiresViolation, destroy_topErr1RequiresViolation, destroy_topErr3RequiresViolation, destroy_topErr2RequiresViolation, destroy_topErr0RequiresViolation, destroy_topErr4RequiresViolation, destroy_topErr5RequiresViolation]=== [2018-02-04 04:31:17,632 INFO L82 PathProgramCache]: Analyzing trace with hash 644933486, 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 04:31:17,635 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:31:17,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:31:17,645 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 04:31:17,646 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:31:17,646 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:31:17,647 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:31:17,647 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:31:17,649 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 04:31:17,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:31:17,669 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 04:31:17,684 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:31:17,684 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-04 04:31:17,684 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:31:17,685 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 04:31:17,685 INFO L182 omatonBuilderFactory]: Interpolants [914#true, 915#false, 919#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp)), 920#(= 1 (select |#valid| |insert_top_#t~malloc14.base|)), 921#(= 1 (select |#valid| insert_top_~top~0.base)), 922#(= 1 (select |#valid| |create_sub_list_#in~sub.base|)), 923#(= 1 (select |#valid| create_sub_list_~sub.base)), 924#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 04:31:17,685 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 04:31:17,685 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-04 04:31:17,685 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-04 04:31:17,685 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=32, Unknown=1, NotChecked=10, Total=56 [2018-02-04 04:31:17,685 INFO L87 Difference]: Start difference. First operand 112 states and 117 transitions. Second operand 8 states. [2018-02-04 04:31:18,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:31:18,008 INFO L93 Difference]: Finished difference Result 145 states and 157 transitions. [2018-02-04 04:31:18,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-02-04 04:31:18,008 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2018-02-04 04:31:18,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:31:18,009 INFO L225 Difference]: With dead ends: 145 [2018-02-04 04:31:18,009 INFO L226 Difference]: Without dead ends: 145 [2018-02-04 04:31:18,010 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=96, Unknown=5, NotChecked=20, Total=156 [2018-02-04 04:31:18,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2018-02-04 04:31:18,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 113. [2018-02-04 04:31:18,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-02-04 04:31:18,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 119 transitions. [2018-02-04 04:31:18,016 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 119 transitions. Word has length 19 [2018-02-04 04:31:18,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:31:18,016 INFO L432 AbstractCegarLoop]: Abstraction has 113 states and 119 transitions. [2018-02-04 04:31:18,016 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-04 04:31:18,017 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 119 transitions. [2018-02-04 04:31:18,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-04 04:31:18,017 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:31:18,017 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 04:31:18,017 INFO L371 AbstractCegarLoop]: === Iteration 5 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, insert_subErr0RequiresViolation, insert_subErr1RequiresViolation, destroy_subErr2RequiresViolation, destroy_subErr3RequiresViolation, destroy_subErr4RequiresViolation, destroy_subErr5RequiresViolation, destroy_subErr1RequiresViolation, destroy_subErr0RequiresViolation, create_sub_listErr1RequiresViolation, create_sub_listErr2RequiresViolation, create_sub_listErr0RequiresViolation, create_sub_listErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, list_add_tailErr0RequiresViolation, list_add_tailErr1RequiresViolation, destroy_topErr1RequiresViolation, destroy_topErr3RequiresViolation, destroy_topErr2RequiresViolation, destroy_topErr0RequiresViolation, destroy_topErr4RequiresViolation, destroy_topErr5RequiresViolation]=== [2018-02-04 04:31:18,017 INFO L82 PathProgramCache]: Analyzing trace with hash 644933487, 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 04:31:18,021 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:31:18,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:31:18,048 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier Unsupported proof rule: (let ((a!1 (<= (+ 8 (* (- 1) (select |old(#length)_16| |insert_top_#t~malloc14.base_13|))) (- 8)))) (rewrite (= a!1 (>= (select |old(#length)_16| |insert_top_#t~malloc14.base_13|) 16)))) [2018-02-04 04:31:18,049 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 138 column 516: 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 04:31:18,052 INFO L168 Benchmark]: Toolchain (without parser) took 2190.06 ms. Allocated memory was 404.8 MB in the beginning and 585.6 MB in the end (delta: 180.9 MB). Free memory was 361.6 MB in the beginning and 364.9 MB in the end (delta: -3.3 MB). Peak memory consumption was 177.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:31:18,053 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 404.8 MB. Free memory is still 368.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:31:18,053 INFO L168 Benchmark]: CACSL2BoogieTranslator took 153.99 ms. Allocated memory is still 404.8 MB. Free memory was 361.6 MB in the beginning and 349.7 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. [2018-02-04 04:31:18,054 INFO L168 Benchmark]: Boogie Preprocessor took 27.54 ms. Allocated memory is still 404.8 MB. Free memory was 349.7 MB in the beginning and 348.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-04 04:31:18,054 INFO L168 Benchmark]: RCFGBuilder took 303.72 ms. Allocated memory is still 404.8 MB. Free memory was 348.4 MB in the beginning and 315.6 MB in the end (delta: 32.8 MB). Peak memory consumption was 32.8 MB. Max. memory is 5.3 GB. [2018-02-04 04:31:18,055 INFO L168 Benchmark]: TraceAbstraction took 1702.43 ms. Allocated memory was 404.8 MB in the beginning and 585.6 MB in the end (delta: 180.9 MB). Free memory was 315.6 MB in the beginning and 364.9 MB in the end (delta: -49.3 MB). Peak memory consumption was 131.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:31:18,057 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 404.8 MB. Free memory is still 368.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 153.99 ms. Allocated memory is still 404.8 MB. Free memory was 361.6 MB in the beginning and 349.7 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 27.54 ms. Allocated memory is still 404.8 MB. Free memory was 349.7 MB in the beginning and 348.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 303.72 ms. Allocated memory is still 404.8 MB. Free memory was 348.4 MB in the beginning and 315.6 MB in the end (delta: 32.8 MB). Peak memory consumption was 32.8 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1702.43 ms. Allocated memory was 404.8 MB in the beginning and 585.6 MB in the end (delta: 180.9 MB). Free memory was 315.6 MB in the beginning and 364.9 MB in the end (delta: -49.3 MB). Peak memory consumption was 131.6 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: line 138 column 516: theory not supported by interpolation or bad proof de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: line 138 column 516: 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/test-0102_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_04-31-18-065.csv Received shutdown request...