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/cav18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test9_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-26d9e06-m [2018-02-02 09:33:08,920 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 09:33:08,921 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 09:33:08,933 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 09:33:08,934 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 09:33:08,934 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 09:33:08,935 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 09:33:08,936 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 09:33:08,937 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 09:33:08,938 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 09:33:08,939 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 09:33:08,939 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 09:33:08,940 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 09:33:08,941 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 09:33:08,942 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 09:33:08,944 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 09:33:08,945 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 09:33:08,947 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 09:33:08,948 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 09:33:08,949 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 09:33:08,950 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-02 09:33:08,950 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-02 09:33:08,951 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-02 09:33:08,951 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-02 09:33:08,952 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-02 09:33:08,953 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-02 09:33:08,953 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-02 09:33:08,954 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-02 09:33:08,954 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-02 09:33:08,954 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-02 09:33:08,955 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-02 09:33:08,955 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cav18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf [2018-02-02 09:33:08,965 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 09:33:08,966 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 09:33:08,967 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 09:33:08,967 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 09:33:08,967 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 09:33:08,967 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 09:33:08,967 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 09:33:08,967 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 09:33:08,968 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 09:33:08,968 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 09:33:08,968 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 09:33:08,968 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 09:33:08,968 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 09:33:08,968 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 09:33:08,969 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 09:33:08,969 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 09:33:08,969 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 09:33:08,969 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 09:33:08,969 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 09:33:08,969 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 09:33:08,969 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 09:33:08,970 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 09:33:08,970 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-02 09:33:08,970 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-02 09:33:08,970 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-02-02 09:33:09,002 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 09:33:09,015 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 09:33:09,018 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 09:33:09,019 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 09:33:09,020 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 09:33:09,020 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test9_true-valid-memsafety_true-termination.i [2018-02-02 09:33:09,176 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 09:33:09,177 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 09:33:09,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 09:33:09,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 09:33:09,185 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 09:33:09,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:33:09" (1/1) ... [2018-02-02 09:33:09,189 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64f2ca73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:33:09, skipping insertion in model container [2018-02-02 09:33:09,189 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:33:09" (1/1) ... [2018-02-02 09:33:09,205 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 09:33:09,245 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 09:33:09,340 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 09:33:09,350 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 09:33:09,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:33:09 WrapperNode [2018-02-02 09:33:09,354 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 09:33:09,355 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 09:33:09,355 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 09:33:09,355 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 09:33:09,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:33:09" (1/1) ... [2018-02-02 09:33:09,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:33:09" (1/1) ... [2018-02-02 09:33:09,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:33:09" (1/1) ... [2018-02-02 09:33:09,376 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:33:09" (1/1) ... [2018-02-02 09:33:09,377 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:33:09" (1/1) ... [2018-02-02 09:33:09,378 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:33:09" (1/1) ... [2018-02-02 09:33:09,379 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:33:09" (1/1) ... [2018-02-02 09:33:09,380 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 09:33:09,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 09:33:09,381 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 09:33:09,381 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 09:33:09,382 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:33:09" (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 09:33:09,417 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 09:33:09,417 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 09:33:09,417 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-02-02 09:33:09,417 INFO L136 BoogieDeclarations]: Found implementation of procedure probe_9 [2018-02-02 09:33:09,417 INFO L136 BoogieDeclarations]: Found implementation of procedure disconnect_9 [2018-02-02 09:33:09,417 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-02-02 09:33:09,417 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 09:33:09,418 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 09:33:09,418 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 09:33:09,418 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 09:33:09,418 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-02 09:33:09,418 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-02 09:33:09,418 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-02 09:33:09,418 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-02-02 09:33:09,418 INFO L128 BoogieDeclarations]: Found specification of procedure probe_9 [2018-02-02 09:33:09,418 INFO L128 BoogieDeclarations]: Found specification of procedure disconnect_9 [2018-02-02 09:33:09,419 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-02-02 09:33:09,419 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 09:33:09,419 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 09:33:09,419 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 09:33:09,524 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 09:33:09,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:33:09 BoogieIcfgContainer [2018-02-02 09:33:09,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 09:33:09,526 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 09:33:09,526 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 09:33:09,529 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 09:33:09,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 09:33:09" (1/3) ... [2018-02-02 09:33:09,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d2dba53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:33:09, skipping insertion in model container [2018-02-02 09:33:09,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:33:09" (2/3) ... [2018-02-02 09:33:09,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d2dba53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:33:09, skipping insertion in model container [2018-02-02 09:33:09,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:33:09" (3/3) ... [2018-02-02 09:33:09,533 INFO L107 eAbstractionObserver]: Analyzing ICFG memleaks_test9_true-valid-memsafety_true-termination.i [2018-02-02 09:33:09,540 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-02 09:33:09,545 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-02-02 09:33:09,586 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 09:33:09,586 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 09:33:09,586 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-02 09:33:09,586 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-02 09:33:09,586 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 09:33:09,586 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 09:33:09,587 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 09:33:09,587 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 09:33:09,588 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 09:33:09,602 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2018-02-02 09:33:09,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-02 09:33:09,612 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 09:33:09,613 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] [2018-02-02 09:33:09,613 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation, disconnect_9Err1RequiresViolation, disconnect_9Err0RequiresViolation]=== [2018-02-02 09:33:09,616 INFO L82 PathProgramCache]: Analyzing trace with hash 637985235, now seen corresponding path program 1 times [2018-02-02 09:33:09,617 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 09:33:09,617 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 09:33:09,657 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 09:33:09,657 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 09:33:09,657 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 09:33:09,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 09:33:09,722 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 09:33:09,813 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 09:33:09,814 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 09:33:09,815 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 09:33:09,816 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 09:33:09,879 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 09:33:09,879 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 09:33:09,881 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 5 states. [2018-02-02 09:33:09,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 09:33:09,950 INFO L93 Difference]: Finished difference Result 47 states and 50 transitions. [2018-02-02 09:33:09,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 09:33:09,952 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-02-02 09:33:09,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 09:33:09,958 INFO L225 Difference]: With dead ends: 47 [2018-02-02 09:33:09,959 INFO L226 Difference]: Without dead ends: 44 [2018-02-02 09:33:09,960 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-02-02 09:33:09,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-02-02 09:33:09,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 43. [2018-02-02 09:33:09,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-02-02 09:33:09,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2018-02-02 09:33:09,982 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 20 [2018-02-02 09:33:09,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 09:33:09,982 INFO L432 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2018-02-02 09:33:09,982 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 09:33:09,982 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2018-02-02 09:33:09,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-02 09:33:09,983 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 09:33:09,983 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] [2018-02-02 09:33:09,983 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation, disconnect_9Err1RequiresViolation, disconnect_9Err0RequiresViolation]=== [2018-02-02 09:33:09,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1778317329, now seen corresponding path program 1 times [2018-02-02 09:33:09,983 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 09:33:09,983 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 09:33:09,984 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 09:33:09,984 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 09:33:09,985 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 09:33:09,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 09:33:10,000 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 09:33:10,040 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 09:33:10,040 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 09:33:10,041 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 09:33:10,042 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-02 09:33:10,042 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-02 09:33:10,042 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-02 09:33:10,043 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand 6 states. [2018-02-02 09:33:10,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 09:33:10,099 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2018-02-02 09:33:10,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-02 09:33:10,099 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2018-02-02 09:33:10,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 09:33:10,103 INFO L225 Difference]: With dead ends: 42 [2018-02-02 09:33:10,103 INFO L226 Difference]: Without dead ends: 42 [2018-02-02 09:33:10,104 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2018-02-02 09:33:10,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-02-02 09:33:10,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-02-02 09:33:10,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-02-02 09:33:10,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2018-02-02 09:33:10,113 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 22 [2018-02-02 09:33:10,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 09:33:10,113 INFO L432 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2018-02-02 09:33:10,113 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-02 09:33:10,113 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2018-02-02 09:33:10,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-02 09:33:10,114 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 09:33:10,114 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] [2018-02-02 09:33:10,114 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr0EnsuresViolation, disconnect_9Err1RequiresViolation, disconnect_9Err0RequiresViolation]=== [2018-02-02 09:33:10,114 INFO L82 PathProgramCache]: Analyzing trace with hash 1778317330, now seen corresponding path program 1 times [2018-02-02 09:33:10,114 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 09:33:10,114 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 09:33:10,115 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 09:33:10,115 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 09:33:10,115 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 09:33:10,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 09:33:10,129 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 09:33:10,168 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 09:33:10,168 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 09:33:10,168 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 09:33:10,169 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-02 09:33:10,169 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-02 09:33:10,169 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-02 09:33:10,169 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand 6 states. [2018-02-02 09:33:10,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 09:33:10,237 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2018-02-02 09:33:10,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 09:33:10,237 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2018-02-02 09:33:10,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 09:33:10,238 INFO L225 Difference]: With dead ends: 48 [2018-02-02 09:33:10,238 INFO L226 Difference]: Without dead ends: 48 [2018-02-02 09:33:10,239 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 09:33:10,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-02-02 09:33:10,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 33. [2018-02-02 09:33:10,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-02-02 09:33:10,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2018-02-02 09:33:10,247 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 22 [2018-02-02 09:33:10,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 09:33:10,247 INFO L432 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2018-02-02 09:33:10,248 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-02 09:33:10,248 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2018-02-02 09:33:10,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-02 09:33:10,248 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 09:33:10,249 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] [2018-02-02 09:33:10,249 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr0EnsuresViolation, disconnect_9Err1RequiresViolation, disconnect_9Err0RequiresViolation]=== [2018-02-02 09:33:10,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1413293605, now seen corresponding path program 1 times [2018-02-02 09:33:10,249 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 09:33:10,249 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 09:33:10,250 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 09:33:10,251 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 09:33:10,251 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 09:33:10,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 09:33:10,261 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 09:33:10,287 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 09:33:10,287 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 09:33:10,287 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-02 09:33:10,288 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-02 09:33:10,288 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-02 09:33:10,288 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 09:33:10,288 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand 3 states. [2018-02-02 09:33:10,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 09:33:10,321 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2018-02-02 09:33:10,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-02 09:33:10,322 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2018-02-02 09:33:10,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 09:33:10,323 INFO L225 Difference]: With dead ends: 42 [2018-02-02 09:33:10,323 INFO L226 Difference]: Without dead ends: 38 [2018-02-02 09:33:10,323 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 09:33:10,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-02-02 09:33:10,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2018-02-02 09:33:10,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-02-02 09:33:10,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2018-02-02 09:33:10,329 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 22 [2018-02-02 09:33:10,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 09:33:10,329 INFO L432 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2018-02-02 09:33:10,329 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-02 09:33:10,330 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2018-02-02 09:33:10,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-02-02 09:33:10,330 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 09:33:10,330 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] [2018-02-02 09:33:10,331 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr0EnsuresViolation, disconnect_9Err1RequiresViolation, disconnect_9Err0RequiresViolation]=== [2018-02-02 09:33:10,331 INFO L82 PathProgramCache]: Analyzing trace with hash -431737374, now seen corresponding path program 1 times [2018-02-02 09:33:10,331 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 09:33:10,331 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 09:33:10,332 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 09:33:10,332 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 09:33:10,332 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 09:33:10,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 09:33:10,342 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 09:33:10,369 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 09:33:10,370 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 09:33:10,370 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 09:33:10,370 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 09:33:10,370 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 09:33:10,371 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 09:33:10,371 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand 5 states. [2018-02-02 09:33:10,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 09:33:10,382 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2018-02-02 09:33:10,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 09:33:10,382 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2018-02-02 09:33:10,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 09:33:10,383 INFO L225 Difference]: With dead ends: 44 [2018-02-02 09:33:10,383 INFO L226 Difference]: Without dead ends: 44 [2018-02-02 09:33:10,383 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 09:33:10,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-02-02 09:33:10,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 37. [2018-02-02 09:33:10,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-02-02 09:33:10,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2018-02-02 09:33:10,387 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 24 [2018-02-02 09:33:10,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 09:33:10,387 INFO L432 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2018-02-02 09:33:10,387 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 09:33:10,387 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2018-02-02 09:33:10,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-02-02 09:33:10,388 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 09:33:10,388 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] [2018-02-02 09:33:10,388 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr0EnsuresViolation, disconnect_9Err1RequiresViolation, disconnect_9Err0RequiresViolation]=== [2018-02-02 09:33:10,388 INFO L82 PathProgramCache]: Analyzing trace with hash 2055775459, now seen corresponding path program 1 times [2018-02-02 09:33:10,388 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 09:33:10,389 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 09:33:10,390 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 09:33:10,390 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 09:33:10,390 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 09:33:10,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 09:33:10,399 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 09:33:10,429 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 09:33:10,429 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 09:33:10,429 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-02 09:33:10,429 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-02 09:33:10,430 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-02 09:33:10,430 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-02 09:33:10,430 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand 6 states. [2018-02-02 09:33:10,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 09:33:10,454 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2018-02-02 09:33:10,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 09:33:10,454 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-02-02 09:33:10,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 09:33:10,455 INFO L225 Difference]: With dead ends: 42 [2018-02-02 09:33:10,455 INFO L226 Difference]: Without dead ends: 42 [2018-02-02 09:33:10,455 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 09:33:10,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-02-02 09:33:10,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 33. [2018-02-02 09:33:10,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-02-02 09:33:10,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2018-02-02 09:33:10,457 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 24 [2018-02-02 09:33:10,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 09:33:10,457 INFO L432 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2018-02-02 09:33:10,457 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-02 09:33:10,457 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2018-02-02 09:33:10,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-02-02 09:33:10,458 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 09:33:10,458 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] [2018-02-02 09:33:10,458 INFO L371 AbstractCegarLoop]: === Iteration 7 === [mainErr0EnsuresViolation, disconnect_9Err1RequiresViolation, disconnect_9Err0RequiresViolation]=== [2018-02-02 09:33:10,458 INFO L82 PathProgramCache]: Analyzing trace with hash -119628224, now seen corresponding path program 1 times [2018-02-02 09:33:10,458 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 09:33:10,458 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 09:33:10,459 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 09:33:10,459 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 09:33:10,459 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 09:33:10,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 09:33:10,465 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 09:33:10,514 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 09:33:10,515 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 09:33:10,515 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-02 09:33:10,515 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-02 09:33:10,515 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-02 09:33:10,515 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-02-02 09:33:10,516 INFO L87 Difference]: Start difference. First operand 33 states and 33 transitions. Second operand 7 states. [2018-02-02 09:33:10,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 09:33:10,565 INFO L93 Difference]: Finished difference Result 45 states and 44 transitions. [2018-02-02 09:33:10,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-02 09:33:10,565 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-02-02 09:33:10,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 09:33:10,566 INFO L225 Difference]: With dead ends: 45 [2018-02-02 09:33:10,566 INFO L226 Difference]: Without dead ends: 29 [2018-02-02 09:33:10,566 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-02-02 09:33:10,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-02-02 09:33:10,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-02-02 09:33:10,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-02-02 09:33:10,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 28 transitions. [2018-02-02 09:33:10,568 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 28 transitions. Word has length 26 [2018-02-02 09:33:10,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 09:33:10,569 INFO L432 AbstractCegarLoop]: Abstraction has 29 states and 28 transitions. [2018-02-02 09:33:10,569 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-02 09:33:10,569 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 28 transitions. [2018-02-02 09:33:10,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-02-02 09:33:10,569 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 09:33:10,570 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] [2018-02-02 09:33:10,570 INFO L371 AbstractCegarLoop]: === Iteration 8 === [mainErr0EnsuresViolation, disconnect_9Err1RequiresViolation, disconnect_9Err0RequiresViolation]=== [2018-02-02 09:33:10,570 INFO L82 PathProgramCache]: Analyzing trace with hash 221087613, now seen corresponding path program 1 times [2018-02-02 09:33:10,570 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 09:33:10,570 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 09:33:10,571 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 09:33:10,571 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 09:33:10,571 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 09:33:10,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 09:33:10,584 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 09:33:10,713 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 09:33:10,713 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 09:33:10,713 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-02 09:33:10,713 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-02 09:33:10,713 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-02 09:33:10,713 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-02-02 09:33:10,714 INFO L87 Difference]: Start difference. First operand 29 states and 28 transitions. Second operand 8 states. [2018-02-02 09:33:10,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 09:33:10,862 INFO L93 Difference]: Finished difference Result 28 states and 27 transitions. [2018-02-02 09:33:10,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-02-02 09:33:10,863 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2018-02-02 09:33:10,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 09:33:10,863 INFO L225 Difference]: With dead ends: 28 [2018-02-02 09:33:10,863 INFO L226 Difference]: Without dead ends: 0 [2018-02-02 09:33:10,863 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-02-02 09:33:10,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-02-02 09:33:10,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-02-02 09:33:10,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-02-02 09:33:10,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-02-02 09:33:10,864 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2018-02-02 09:33:10,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 09:33:10,864 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-02-02 09:33:10,864 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-02 09:33:10,864 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-02-02 09:33:10,864 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-02-02 09:33:10,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.02 09:33:10 BoogieIcfgContainer [2018-02-02 09:33:10,867 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-02 09:33:10,868 INFO L168 Benchmark]: Toolchain (without parser) took 1691.58 ms. Allocated memory was 401.6 MB in the beginning and 626.5 MB in the end (delta: 224.9 MB). Free memory was 358.3 MB in the beginning and 598.1 MB in the end (delta: -239.8 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 09:33:10,869 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 401.6 MB. Free memory is still 364.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 09:33:10,869 INFO L168 Benchmark]: CACSL2BoogieTranslator took 176.64 ms. Allocated memory is still 401.6 MB. Free memory was 358.3 MB in the beginning and 345.1 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. [2018-02-02 09:33:10,869 INFO L168 Benchmark]: Boogie Preprocessor took 25.42 ms. Allocated memory is still 401.6 MB. Free memory was 345.1 MB in the beginning and 343.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-02 09:33:10,869 INFO L168 Benchmark]: RCFGBuilder took 144.39 ms. Allocated memory is still 401.6 MB. Free memory was 343.8 MB in the beginning and 327.9 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 5.3 GB. [2018-02-02 09:33:10,869 INFO L168 Benchmark]: TraceAbstraction took 1341.77 ms. Allocated memory was 401.6 MB in the beginning and 626.5 MB in the end (delta: 224.9 MB). Free memory was 327.9 MB in the beginning and 598.1 MB in the end (delta: -270.2 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 09:33:10,870 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 401.6 MB. Free memory is still 364.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 176.64 ms. Allocated memory is still 401.6 MB. Free memory was 358.3 MB in the beginning and 345.1 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 25.42 ms. Allocated memory is still 401.6 MB. Free memory was 345.1 MB in the beginning and 343.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 144.39 ms. Allocated memory is still 401.6 MB. Free memory was 343.8 MB in the beginning and 327.9 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1341.77 ms. Allocated memory was 401.6 MB in the beginning and 626.5 MB in the end (delta: 224.9 MB). Free memory was 327.9 MB in the beginning and 598.1 MB in the end (delta: -270.2 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1456]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 34 locations, 3 error locations. SAFE Result, 1.2s OverallTime, 8 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 241 SDtfs, 87 SDslu, 604 SDs, 0 SdLazy, 283 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 30 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 33 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 188 NumberOfCodeBlocks, 188 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 15483 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test9_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_09-33-10-875.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test9_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-02_09-33-10-875.csv Received shutdown request...