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/ldv-memsafety/memleaks_test18_2_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-a74eeac-m [2018-02-02 21:07:54,948 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 21:07:54,950 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 21:07:54,960 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 21:07:54,960 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 21:07:54,960 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 21:07:54,961 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 21:07:54,962 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 21:07:54,964 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 21:07:54,965 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 21:07:54,965 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 21:07:54,966 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 21:07:54,966 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 21:07:54,968 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 21:07:54,968 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 21:07:54,970 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 21:07:54,972 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 21:07:54,975 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 21:07:54,976 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 21:07:54,977 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 21:07:54,979 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-02 21:07:54,979 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-02 21:07:54,979 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-02 21:07:54,980 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-02 21:07:54,981 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-02 21:07:54,982 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-02 21:07:54,982 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-02 21:07:54,983 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-02 21:07:54,983 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-02 21:07:54,983 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-02 21:07:54,983 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-02 21:07:54,984 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 21:07:54,993 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 21:07:54,993 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 21:07:54,994 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 21:07:54,994 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 21:07:54,995 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 21:07:54,995 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 21:07:54,995 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 21:07:54,995 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 21:07:54,995 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 21:07:54,995 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 21:07:54,996 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 21:07:54,996 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 21:07:54,996 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 21:07:54,996 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 21:07:54,996 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 21:07:54,996 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 21:07:54,996 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 21:07:54,996 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 21:07:54,997 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 21:07:54,997 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 21:07:54,997 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 21:07:54,997 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 21:07:54,997 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-02 21:07:54,997 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-02 21:07:54,997 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-02-02 21:07:55,032 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 21:07:55,042 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 21:07:55,045 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 21:07:55,047 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 21:07:55,048 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 21:07:55,048 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test18_2_false-valid-memtrack_true-termination.i [2018-02-02 21:07:55,181 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 21:07:55,182 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 21:07:55,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 21:07:55,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 21:07:55,187 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 21:07:55,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:07:55" (1/1) ... [2018-02-02 21:07:55,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fdda15c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:07:55, skipping insertion in model container [2018-02-02 21:07:55,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:07:55" (1/1) ... [2018-02-02 21:07:55,202 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 21:07:55,243 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 21:07:55,336 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 21:07:55,348 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 21:07:55,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:07:55 WrapperNode [2018-02-02 21:07:55,354 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 21:07:55,355 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 21:07:55,355 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 21:07:55,355 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 21:07:55,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:07:55" (1/1) ... [2018-02-02 21:07:55,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:07:55" (1/1) ... [2018-02-02 21:07:55,371 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:07:55" (1/1) ... [2018-02-02 21:07:55,371 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:07:55" (1/1) ... [2018-02-02 21:07:55,373 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:07:55" (1/1) ... [2018-02-02 21:07:55,374 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:07:55" (1/1) ... [2018-02-02 21:07:55,375 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:07:55" (1/1) ... [2018-02-02 21:07:55,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 21:07:55,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 21:07:55,376 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 21:07:55,377 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 21:07:55,377 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:07:55" (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 21:07:55,412 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 21:07:55,412 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 21:07:55,412 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-02-02 21:07:55,412 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-02-02 21:07:55,412 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 21:07:55,412 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-02 21:07:55,412 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-02 21:07:55,412 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 21:07:55,413 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 21:07:55,413 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 21:07:55,413 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-02 21:07:55,413 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-02 21:07:55,413 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-02 21:07:55,413 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-02-02 21:07:55,413 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-02-02 21:07:55,413 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 21:07:55,413 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 21:07:55,413 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 21:07:55,547 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 21:07:55,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:07:55 BoogieIcfgContainer [2018-02-02 21:07:55,547 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 21:07:55,547 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 21:07:55,548 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 21:07:55,549 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 21:07:55,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 09:07:55" (1/3) ... [2018-02-02 21:07:55,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@515ebdb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:07:55, skipping insertion in model container [2018-02-02 21:07:55,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:07:55" (2/3) ... [2018-02-02 21:07:55,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@515ebdb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:07:55, skipping insertion in model container [2018-02-02 21:07:55,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:07:55" (3/3) ... [2018-02-02 21:07:55,553 INFO L107 eAbstractionObserver]: Analyzing ICFG memleaks_test18_2_false-valid-memtrack_true-termination.i [2018-02-02 21:07:55,559 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-02 21:07:55,565 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-02-02 21:07:55,597 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 21:07:55,597 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 21:07:55,597 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-02 21:07:55,597 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-02 21:07:55,597 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 21:07:55,598 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 21:07:55,598 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 21:07:55,598 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 21:07:55,599 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 21:07:55,610 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2018-02-02 21:07:55,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-02-02 21:07:55,621 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:07:55,622 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:07:55,622 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation, entry_pointErr7RequiresViolation, entry_pointErr5RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-02-02 21:07:55,625 INFO L82 PathProgramCache]: Analyzing trace with hash -100423179, now seen corresponding path program 1 times [2018-02-02 21:07:55,626 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:07:55,626 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:07:55,668 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:07:55,669 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:07:55,669 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:07:55,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:07:55,721 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:07:55,783 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 21:07:55,785 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:07:55,785 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-02 21:07:55,787 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-02 21:07:55,794 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-02 21:07:55,795 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 21:07:55,796 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2018-02-02 21:07:55,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:07:55,945 INFO L93 Difference]: Finished difference Result 74 states and 86 transitions. [2018-02-02 21:07:55,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-02 21:07:55,946 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-02-02 21:07:55,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:07:55,953 INFO L225 Difference]: With dead ends: 74 [2018-02-02 21:07:55,953 INFO L226 Difference]: Without dead ends: 68 [2018-02-02 21:07:55,955 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 21:07:55,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-02-02 21:07:55,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 54. [2018-02-02 21:07:55,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-02-02 21:07:55,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2018-02-02 21:07:55,986 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 17 [2018-02-02 21:07:55,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:07:55,987 INFO L432 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2018-02-02 21:07:55,987 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-02 21:07:55,987 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2018-02-02 21:07:55,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-02 21:07:55,988 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:07:55,988 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 21:07:55,988 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation, entry_pointErr7RequiresViolation, entry_pointErr5RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-02-02 21:07:55,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1898895127, now seen corresponding path program 1 times [2018-02-02 21:07:55,988 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:07:55,988 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:07:55,990 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:07:55,990 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:07:55,990 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:07:56,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:07:56,008 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:07:56,051 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 21:07:56,052 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:07:56,052 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-02 21:07:56,053 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-02 21:07:56,054 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-02 21:07:56,054 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-02 21:07:56,054 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand 6 states. [2018-02-02 21:07:56,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:07:56,106 INFO L93 Difference]: Finished difference Result 78 states and 94 transitions. [2018-02-02 21:07:56,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 21:07:56,107 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-02-02 21:07:56,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:07:56,108 INFO L225 Difference]: With dead ends: 78 [2018-02-02 21:07:56,108 INFO L226 Difference]: Without dead ends: 78 [2018-02-02 21:07:56,109 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-02-02 21:07:56,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-02-02 21:07:56,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 54. [2018-02-02 21:07:56,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-02-02 21:07:56,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2018-02-02 21:07:56,115 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 19 [2018-02-02 21:07:56,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:07:56,115 INFO L432 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2018-02-02 21:07:56,115 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-02 21:07:56,115 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2018-02-02 21:07:56,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-02-02 21:07:56,116 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:07:56,116 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:07:56,116 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr0EnsuresViolation, entry_pointErr7RequiresViolation, entry_pointErr5RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-02-02 21:07:56,116 INFO L82 PathProgramCache]: Analyzing trace with hash -538007597, now seen corresponding path program 1 times [2018-02-02 21:07:56,116 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:07:56,117 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:07:56,117 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:07:56,117 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:07:56,118 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:07:56,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:07:56,130 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:07:56,165 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 21:07:56,166 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:07:56,166 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 21:07:56,166 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-02 21:07:56,166 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-02 21:07:56,166 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-02-02 21:07:56,166 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand 4 states. [2018-02-02 21:07:56,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:07:56,191 INFO L93 Difference]: Finished difference Result 86 states and 105 transitions. [2018-02-02 21:07:56,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-02 21:07:56,192 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-02-02 21:07:56,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:07:56,192 INFO L225 Difference]: With dead ends: 86 [2018-02-02 21:07:56,193 INFO L226 Difference]: Without dead ends: 86 [2018-02-02 21:07:56,193 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-02-02 21:07:56,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-02-02 21:07:56,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 56. [2018-02-02 21:07:56,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-02-02 21:07:56,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 66 transitions. [2018-02-02 21:07:56,197 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 66 transitions. Word has length 21 [2018-02-02 21:07:56,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:07:56,197 INFO L432 AbstractCegarLoop]: Abstraction has 56 states and 66 transitions. [2018-02-02 21:07:56,197 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-02 21:07:56,197 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 66 transitions. [2018-02-02 21:07:56,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-02-02 21:07:56,198 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:07:56,198 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:07:56,198 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr0EnsuresViolation, entry_pointErr7RequiresViolation, entry_pointErr5RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-02-02 21:07:56,198 INFO L82 PathProgramCache]: Analyzing trace with hash -483541835, now seen corresponding path program 1 times [2018-02-02 21:07:56,198 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:07:56,198 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:07:56,199 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:07:56,199 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:07:56,199 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:07:56,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:07:56,207 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:07:56,252 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-02 21:07:56,252 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-02 21:07:56,252 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-02 21:07:56,254 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:07:56,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:07:56,282 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-02 21:07:56,308 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 21:07:56,308 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-02-02 21:07:56,308 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2018-02-02 21:07:56,309 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 21:07:56,309 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 21:07:56,309 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 21:07:56,309 INFO L87 Difference]: Start difference. First operand 56 states and 66 transitions. Second operand 5 states. [2018-02-02 21:07:56,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:07:56,336 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2018-02-02 21:07:56,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 21:07:56,337 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2018-02-02 21:07:56,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:07:56,338 INFO L225 Difference]: With dead ends: 49 [2018-02-02 21:07:56,338 INFO L226 Difference]: Without dead ends: 47 [2018-02-02 21:07:56,338 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 21:07:56,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-02-02 21:07:56,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-02-02 21:07:56,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-02-02 21:07:56,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2018-02-02 21:07:56,342 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 24 [2018-02-02 21:07:56,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:07:56,342 INFO L432 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2018-02-02 21:07:56,343 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 21:07:56,343 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2018-02-02 21:07:56,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-02-02 21:07:56,343 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:07:56,344 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:07:56,344 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr0EnsuresViolation, entry_pointErr7RequiresViolation, entry_pointErr5RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-02-02 21:07:56,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1986913619, now seen corresponding path program 1 times [2018-02-02 21:07:56,344 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:07:56,344 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:07:56,345 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:07:56,345 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:07:56,346 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:07:56,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:07:56,357 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:07:56,389 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-02 21:07:56,389 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:07:56,389 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 21:07:56,390 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 21:07:56,390 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 21:07:56,390 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 21:07:56,390 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand 5 states. [2018-02-02 21:07:56,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:07:56,408 INFO L93 Difference]: Finished difference Result 51 states and 55 transitions. [2018-02-02 21:07:56,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 21:07:56,408 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2018-02-02 21:07:56,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:07:56,409 INFO L225 Difference]: With dead ends: 51 [2018-02-02 21:07:56,409 INFO L226 Difference]: Without dead ends: 51 [2018-02-02 21:07:56,409 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 21:07:56,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-02-02 21:07:56,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 49. [2018-02-02 21:07:56,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-02-02 21:07:56,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2018-02-02 21:07:56,413 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 26 [2018-02-02 21:07:56,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:07:56,413 INFO L432 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2018-02-02 21:07:56,413 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 21:07:56,414 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2018-02-02 21:07:56,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-02-02 21:07:56,414 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:07:56,414 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:07:56,414 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr0EnsuresViolation, entry_pointErr7RequiresViolation, entry_pointErr5RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-02-02 21:07:56,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1019008117, now seen corresponding path program 1 times [2018-02-02 21:07:56,415 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:07:56,415 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:07:56,416 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:07:56,416 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:07:56,416 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:07:56,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:07:56,430 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:07:56,438 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 21:07:56,442 INFO L168 Benchmark]: Toolchain (without parser) took 1260.06 ms. Allocated memory was 394.8 MB in the beginning and 596.1 MB in the end (delta: 201.3 MB). Free memory was 351.5 MB in the beginning and 491.7 MB in the end (delta: -140.2 MB). Peak memory consumption was 61.1 MB. Max. memory is 5.3 GB. [2018-02-02 21:07:56,443 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 394.8 MB. Free memory is still 358.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 21:07:56,443 INFO L168 Benchmark]: CACSL2BoogieTranslator took 171.93 ms. Allocated memory is still 394.8 MB. Free memory was 351.5 MB in the beginning and 338.3 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. [2018-02-02 21:07:56,443 INFO L168 Benchmark]: Boogie Preprocessor took 21.30 ms. Allocated memory is still 394.8 MB. Free memory was 338.3 MB in the beginning and 336.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-02 21:07:56,443 INFO L168 Benchmark]: RCFGBuilder took 170.68 ms. Allocated memory is still 394.8 MB. Free memory was 336.9 MB in the beginning and 318.4 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 5.3 GB. [2018-02-02 21:07:56,444 INFO L168 Benchmark]: TraceAbstraction took 893.45 ms. Allocated memory was 394.8 MB in the beginning and 596.1 MB in the end (delta: 201.3 MB). Free memory was 317.1 MB in the beginning and 491.7 MB in the end (delta: -174.6 MB). Peak memory consumption was 26.7 MB. Max. memory is 5.3 GB. [2018-02-02 21:07:56,445 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 394.8 MB. Free memory is still 358.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 171.93 ms. Allocated memory is still 394.8 MB. Free memory was 351.5 MB in the beginning and 338.3 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 21.30 ms. Allocated memory is still 394.8 MB. Free memory was 338.3 MB in the beginning and 336.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 170.68 ms. Allocated memory is still 394.8 MB. Free memory was 336.9 MB in the beginning and 318.4 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 5.3 GB. * TraceAbstraction took 893.45 ms. Allocated memory was 394.8 MB in the beginning and 596.1 MB in the end (delta: 201.3 MB). Free memory was 317.1 MB in the beginning and 491.7 MB in the end (delta: -174.6 MB). Peak memory consumption was 26.7 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/memleaks_test18_2_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_21-07-56-452.csv Received shutdown request...