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_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/memsafety/test-0102_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-a74eeac-m [2018-02-02 21:02:33,924 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 21:02:33,925 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 21:02:33,937 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 21:02:33,937 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 21:02:33,938 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 21:02:33,939 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 21:02:33,940 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 21:02:33,942 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 21:02:33,942 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 21:02:33,943 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 21:02:33,943 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 21:02:33,944 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 21:02:33,945 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 21:02:33,946 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 21:02:33,947 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 21:02:33,949 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 21:02:33,950 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 21:02:33,951 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 21:02:33,952 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 21:02:33,954 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-02 21:02:33,957 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-02 21:02:33,957 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-02 21:02:33,958 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-02-02 21:02:33,967 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 21:02:33,967 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 21:02:33,968 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 21:02:33,968 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 21:02:33,968 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 21:02:33,968 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 21:02:33,968 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 21:02:33,968 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 21:02:33,968 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 21:02:33,968 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 21:02:33,969 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 21:02:33,969 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 21:02:33,969 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 21:02:33,969 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 21:02:33,969 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 21:02:33,969 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 21:02:33,969 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 21:02:33,969 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 21:02:33,969 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 21:02:33,969 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 21:02:33,970 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 21:02:33,970 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 21:02:33,970 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-02 21:02:33,970 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-02 21:02:33,970 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-02-02 21:02:33,996 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 21:02:34,006 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 21:02:34,009 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 21:02:34,010 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 21:02:34,010 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 21:02:34,011 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/test-0102_false-valid-memtrack.i [2018-02-02 21:02:34,147 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 21:02:34,148 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 21:02:34,149 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 21:02:34,149 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 21:02:34,154 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 21:02:34,154 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:02:34" (1/1) ... [2018-02-02 21:02:34,156 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fe6d48a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:02:34, skipping insertion in model container [2018-02-02 21:02:34,156 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:02:34" (1/1) ... [2018-02-02 21:02:34,166 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 21:02:34,195 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 21:02:34,280 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 21:02:34,301 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 21:02:34,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:02:34 WrapperNode [2018-02-02 21:02:34,307 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 21:02:34,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 21:02:34,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 21:02:34,308 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 21:02:34,316 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:02:34" (1/1) ... [2018-02-02 21:02:34,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:02:34" (1/1) ... [2018-02-02 21:02:34,325 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:02:34" (1/1) ... [2018-02-02 21:02:34,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:02:34" (1/1) ... [2018-02-02 21:02:34,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:02:34" (1/1) ... [2018-02-02 21:02:34,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:02:34" (1/1) ... [2018-02-02 21:02:34,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:02:34" (1/1) ... [2018-02-02 21:02:34,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 21:02:34,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 21:02:34,336 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 21:02:34,336 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 21:02:34,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:02:34" (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 [2018-02-02 21:02:34,370 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 21:02:34,370 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 21:02:34,371 INFO L136 BoogieDeclarations]: Found implementation of procedure __list_add [2018-02-02 21:02:34,371 INFO L136 BoogieDeclarations]: Found implementation of procedure list_add_tail [2018-02-02 21:02:34,371 INFO L136 BoogieDeclarations]: Found implementation of procedure destroy_sub [2018-02-02 21:02:34,371 INFO L136 BoogieDeclarations]: Found implementation of procedure destroy_top [2018-02-02 21:02:34,371 INFO L136 BoogieDeclarations]: Found implementation of procedure insert_sub [2018-02-02 21:02:34,371 INFO L136 BoogieDeclarations]: Found implementation of procedure create_sub_list [2018-02-02 21:02:34,371 INFO L136 BoogieDeclarations]: Found implementation of procedure insert_top [2018-02-02 21:02:34,371 INFO L136 BoogieDeclarations]: Found implementation of procedure create_top [2018-02-02 21:02:34,371 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 21:02:34,371 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-02 21:02:34,371 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-02 21:02:34,371 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-02 21:02:34,372 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-02 21:02:34,372 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 21:02:34,372 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 21:02:34,372 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 21:02:34,372 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-02 21:02:34,372 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-02-02 21:02:34,372 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-02 21:02:34,372 INFO L128 BoogieDeclarations]: Found specification of procedure __list_add [2018-02-02 21:02:34,372 INFO L128 BoogieDeclarations]: Found specification of procedure list_add_tail [2018-02-02 21:02:34,372 INFO L128 BoogieDeclarations]: Found specification of procedure destroy_sub [2018-02-02 21:02:34,372 INFO L128 BoogieDeclarations]: Found specification of procedure destroy_top [2018-02-02 21:02:34,372 INFO L128 BoogieDeclarations]: Found specification of procedure insert_sub [2018-02-02 21:02:34,372 INFO L128 BoogieDeclarations]: Found specification of procedure create_sub_list [2018-02-02 21:02:34,372 INFO L128 BoogieDeclarations]: Found specification of procedure insert_top [2018-02-02 21:02:34,373 INFO L128 BoogieDeclarations]: Found specification of procedure create_top [2018-02-02 21:02:34,373 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 21:02:34,373 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 21:02:34,373 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 21:02:34,652 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 21:02:34,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:02:34 BoogieIcfgContainer [2018-02-02 21:02:34,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 21:02:34,653 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 21:02:34,653 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 21:02:34,655 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 21:02:34,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 09:02:34" (1/3) ... [2018-02-02 21:02:34,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fbf568b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:02:34, skipping insertion in model container [2018-02-02 21:02:34,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:02:34" (2/3) ... [2018-02-02 21:02:34,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fbf568b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:02:34, skipping insertion in model container [2018-02-02 21:02:34,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:02:34" (3/3) ... [2018-02-02 21:02:34,658 INFO L107 eAbstractionObserver]: Analyzing ICFG test-0102_false-valid-memtrack.i [2018-02-02 21:02:34,666 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-02 21:02:34,672 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 33 error locations. [2018-02-02 21:02:34,704 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 21:02:34,704 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 21:02:34,704 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-02 21:02:34,704 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-02 21:02:34,704 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 21:02:34,704 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 21:02:34,704 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 21:02:34,704 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 21:02:34,705 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 21:02:34,717 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states. [2018-02-02 21:02:34,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-02-02 21:02:34,726 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:02:34,727 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:02:34,727 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]=== [2018-02-02 21:02:34,731 INFO L82 PathProgramCache]: Analyzing trace with hash -475500327, now seen corresponding path program 1 times [2018-02-02 21:02:34,732 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:02:34,732 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:02:34,762 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:02:34,762 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:02:34,763 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:02:34,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:02:34,804 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:02:34,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 21:02:34,850 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:02:34,850 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-02 21:02:34,851 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-02 21:02:34,863 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-02 21:02:34,864 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 21:02:34,866 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 3 states. [2018-02-02 21:02:34,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:02:34,988 INFO L93 Difference]: Finished difference Result 117 states and 122 transitions. [2018-02-02 21:02:34,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-02 21:02:34,989 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-02-02 21:02:34,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:02:34,996 INFO L225 Difference]: With dead ends: 117 [2018-02-02 21:02:34,996 INFO L226 Difference]: Without dead ends: 114 [2018-02-02 21:02:34,998 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 21:02:35,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-02-02 21:02:35,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2018-02-02 21:02:35,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-02-02 21:02:35,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 119 transitions. [2018-02-02 21:02:35,028 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 119 transitions. Word has length 7 [2018-02-02 21:02:35,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:02:35,028 INFO L432 AbstractCegarLoop]: Abstraction has 114 states and 119 transitions. [2018-02-02 21:02:35,028 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-02 21:02:35,028 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 119 transitions. [2018-02-02 21:02:35,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-02-02 21:02:35,029 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:02:35,029 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:02:35,029 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]=== [2018-02-02 21:02:35,029 INFO L82 PathProgramCache]: Analyzing trace with hash -475500326, now seen corresponding path program 1 times [2018-02-02 21:02:35,030 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:02:35,030 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:02:35,030 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:02:35,031 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:02:35,031 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:02:35,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:02:35,043 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:02:35,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 21:02:35,086 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:02:35,086 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-02 21:02:35,087 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-02 21:02:35,087 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-02 21:02:35,087 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 21:02:35,088 INFO L87 Difference]: Start difference. First operand 114 states and 119 transitions. Second operand 3 states. [2018-02-02 21:02:35,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:02:35,141 INFO L93 Difference]: Finished difference Result 112 states and 117 transitions. [2018-02-02 21:02:35,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-02 21:02:35,141 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-02-02 21:02:35,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:02:35,142 INFO L225 Difference]: With dead ends: 112 [2018-02-02 21:02:35,142 INFO L226 Difference]: Without dead ends: 112 [2018-02-02 21:02:35,143 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 21:02:35,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-02-02 21:02:35,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2018-02-02 21:02:35,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-02-02 21:02:35,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 117 transitions. [2018-02-02 21:02:35,148 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 117 transitions. Word has length 7 [2018-02-02 21:02:35,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:02:35,148 INFO L432 AbstractCegarLoop]: Abstraction has 112 states and 117 transitions. [2018-02-02 21:02:35,148 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-02 21:02:35,148 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 117 transitions. [2018-02-02 21:02:35,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-02 21:02:35,149 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:02:35,149 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:02:35,149 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]=== [2018-02-02 21:02:35,149 INFO L82 PathProgramCache]: Analyzing trace with hash 644933486, now seen corresponding path program 1 times [2018-02-02 21:02:35,149 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:02:35,149 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:02:35,150 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:02:35,150 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:02:35,150 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:02:35,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:02:35,168 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:02:35,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 21:02:35,217 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:02:35,217 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 21:02:35,217 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-02 21:02:35,217 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-02 21:02:35,217 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-02 21:02:35,217 INFO L87 Difference]: Start difference. First operand 112 states and 117 transitions. Second operand 6 states. [2018-02-02 21:02:35,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:02:35,365 INFO L93 Difference]: Finished difference Result 120 states and 127 transitions. [2018-02-02 21:02:35,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-02 21:02:35,366 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-02-02 21:02:35,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:02:35,369 INFO L225 Difference]: With dead ends: 120 [2018-02-02 21:02:35,369 INFO L226 Difference]: Without dead ends: 120 [2018-02-02 21:02:35,369 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-02-02 21:02:35,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2018-02-02 21:02:35,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 113. [2018-02-02 21:02:35,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-02-02 21:02:35,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 119 transitions. [2018-02-02 21:02:35,384 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 119 transitions. Word has length 19 [2018-02-02 21:02:35,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:02:35,384 INFO L432 AbstractCegarLoop]: Abstraction has 113 states and 119 transitions. [2018-02-02 21:02:35,384 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-02 21:02:35,384 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 119 transitions. [2018-02-02 21:02:35,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-02 21:02:35,385 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:02:35,385 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:02:35,385 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]=== [2018-02-02 21:02:35,385 INFO L82 PathProgramCache]: Analyzing trace with hash 644933487, now seen corresponding path program 1 times [2018-02-02 21:02:35,385 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:02:35,385 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:02:35,386 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:02:35,386 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:02:35,386 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:02:35,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:02:35,415 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:02:35,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 21:02:35,506 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:02:35,507 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 21:02:35,507 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-02 21:02:35,507 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-02 21:02:35,507 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-02 21:02:35,507 INFO L87 Difference]: Start difference. First operand 113 states and 119 transitions. Second operand 6 states. [2018-02-02 21:02:35,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:02:35,626 INFO L93 Difference]: Finished difference Result 116 states and 122 transitions. [2018-02-02 21:02:35,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 21:02:35,627 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-02-02 21:02:35,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:02:35,628 INFO L225 Difference]: With dead ends: 116 [2018-02-02 21:02:35,628 INFO L226 Difference]: Without dead ends: 116 [2018-02-02 21:02:35,628 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-02-02 21:02:35,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2018-02-02 21:02:35,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2018-02-02 21:02:35,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-02-02 21:02:35,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 119 transitions. [2018-02-02 21:02:35,633 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 119 transitions. Word has length 19 [2018-02-02 21:02:35,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:02:35,633 INFO L432 AbstractCegarLoop]: Abstraction has 114 states and 119 transitions. [2018-02-02 21:02:35,634 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-02 21:02:35,634 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 119 transitions. [2018-02-02 21:02:35,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-02-02 21:02:35,634 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:02:35,634 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:02:35,634 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]=== [2018-02-02 21:02:35,635 INFO L82 PathProgramCache]: Analyzing trace with hash 264154241, now seen corresponding path program 1 times [2018-02-02 21:02:35,635 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:02:35,635 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:02:35,636 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:02:35,636 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:02:35,636 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:02:35,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:02:35,654 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:02:35,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 21:02:35,687 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:02:35,687 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 21:02:35,687 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-02 21:02:35,687 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-02 21:02:35,687 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-02 21:02:35,688 INFO L87 Difference]: Start difference. First operand 114 states and 119 transitions. Second operand 4 states. [2018-02-02 21:02:35,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:02:35,741 INFO L93 Difference]: Finished difference Result 113 states and 118 transitions. [2018-02-02 21:02:35,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-02 21:02:35,741 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2018-02-02 21:02:35,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:02:35,742 INFO L225 Difference]: With dead ends: 113 [2018-02-02 21:02:35,742 INFO L226 Difference]: Without dead ends: 113 [2018-02-02 21:02:35,743 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-02 21:02:35,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2018-02-02 21:02:35,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2018-02-02 21:02:35,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-02-02 21:02:35,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 118 transitions. [2018-02-02 21:02:35,746 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 118 transitions. Word has length 27 [2018-02-02 21:02:35,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:02:35,746 INFO L432 AbstractCegarLoop]: Abstraction has 113 states and 118 transitions. [2018-02-02 21:02:35,747 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-02 21:02:35,747 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 118 transitions. [2018-02-02 21:02:35,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-02-02 21:02:35,747 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:02:35,747 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:02:35,747 INFO L371 AbstractCegarLoop]: === Iteration 6 === [__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]=== [2018-02-02 21:02:35,747 INFO L82 PathProgramCache]: Analyzing trace with hash 264154242, now seen corresponding path program 1 times [2018-02-02 21:02:35,747 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:02:35,747 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:02:35,748 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:02:35,748 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:02:35,748 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:02:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:02:35,758 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:02:35,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 21:02:35,821 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:02:35,821 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 21:02:35,821 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-02 21:02:35,821 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-02 21:02:35,821 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-02 21:02:35,821 INFO L87 Difference]: Start difference. First operand 113 states and 118 transitions. Second operand 4 states. [2018-02-02 21:02:35,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:02:35,866 INFO L93 Difference]: Finished difference Result 112 states and 117 transitions. [2018-02-02 21:02:35,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-02 21:02:35,866 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2018-02-02 21:02:35,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:02:35,867 INFO L225 Difference]: With dead ends: 112 [2018-02-02 21:02:35,867 INFO L226 Difference]: Without dead ends: 112 [2018-02-02 21:02:35,867 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-02 21:02:35,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-02-02 21:02:35,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2018-02-02 21:02:35,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-02-02 21:02:35,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 117 transitions. [2018-02-02 21:02:35,870 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 117 transitions. Word has length 27 [2018-02-02 21:02:35,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:02:35,870 INFO L432 AbstractCegarLoop]: Abstraction has 112 states and 117 transitions. [2018-02-02 21:02:35,870 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-02 21:02:35,871 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 117 transitions. [2018-02-02 21:02:35,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-02-02 21:02:35,871 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:02:35,871 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:02:35,871 INFO L371 AbstractCegarLoop]: === Iteration 7 === [__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]=== [2018-02-02 21:02:35,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1039036196, now seen corresponding path program 1 times [2018-02-02 21:02:35,871 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:02:35,871 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:02:35,872 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:02:35,872 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:02:35,872 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:02:35,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:02:35,894 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:02:35,899 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Unknown lemma type! at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:299) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.access$1(Interpolator.java:263) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$ProofTreeWalker.walk(Interpolator.java:132) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:220) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:201) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:915) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:281) 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.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:199) 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.MultiTrackTraceAbstractionRefinementStrategy.getTraceCheck(MultiTrackTraceAbstractionRefinementStrategy.java:222) 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) [2018-02-02 21:02:35,903 INFO L168 Benchmark]: Toolchain (without parser) took 1754.87 ms. Allocated memory was 408.4 MB in the beginning and 617.6 MB in the end (delta: 209.2 MB). Free memory was 362.5 MB in the beginning and 433.6 MB in the end (delta: -71.1 MB). Peak memory consumption was 138.1 MB. Max. memory is 5.3 GB. [2018-02-02 21:02:35,904 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 408.4 MB. Free memory is still 369.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 21:02:35,904 INFO L168 Benchmark]: CACSL2BoogieTranslator took 158.64 ms. Allocated memory is still 408.4 MB. Free memory was 362.5 MB in the beginning and 350.6 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. [2018-02-02 21:02:35,904 INFO L168 Benchmark]: Boogie Preprocessor took 27.88 ms. Allocated memory is still 408.4 MB. Free memory was 350.6 MB in the beginning and 349.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-02 21:02:35,904 INFO L168 Benchmark]: RCFGBuilder took 316.79 ms. Allocated memory is still 408.4 MB. Free memory was 349.3 MB in the beginning and 316.0 MB in the end (delta: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 5.3 GB. [2018-02-02 21:02:35,905 INFO L168 Benchmark]: TraceAbstraction took 1248.95 ms. Allocated memory was 408.4 MB in the beginning and 617.6 MB in the end (delta: 209.2 MB). Free memory was 316.0 MB in the beginning and 433.6 MB in the end (delta: -117.5 MB). Peak memory consumption was 91.6 MB. Max. memory is 5.3 GB. [2018-02-02 21:02:35,906 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 408.4 MB. Free memory is still 369.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 158.64 ms. Allocated memory is still 408.4 MB. Free memory was 362.5 MB in the beginning and 350.6 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 27.88 ms. Allocated memory is still 408.4 MB. Free memory was 350.6 MB in the beginning and 349.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 316.79 ms. Allocated memory is still 408.4 MB. Free memory was 349.3 MB in the beginning and 316.0 MB in the end (delta: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1248.95 ms. Allocated memory was 408.4 MB in the beginning and 617.6 MB in the end (delta: 209.2 MB). Free memory was 316.0 MB in the beginning and 433.6 MB in the end (delta: -117.5 MB). Peak memory consumption was 91.6 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Unknown lemma type! de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Unknown lemma type!: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:299) 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_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_21-02-35-912.csv Received shutdown request...