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_Camel.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength6_true-valid-memsafety_true-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-a74eeac-m [2018-02-02 19:09:43,629 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 19:09:43,631 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 19:09:43,640 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 19:09:43,640 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 19:09:43,641 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 19:09:43,641 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 19:09:43,642 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 19:09:43,644 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 19:09:43,644 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 19:09:43,645 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 19:09:43,645 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 19:09:43,646 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 19:09:43,647 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 19:09:43,648 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 19:09:43,649 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 19:09:43,651 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 19:09:43,652 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 19:09:43,653 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 19:09:43,654 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 19:09:43,655 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-02 19:09:43,656 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-02 19:09:43,656 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-02 19:09:43,657 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-02 19:09:43,657 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-02 19:09:43,658 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-02 19:09:43,658 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-02 19:09:43,659 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-02 19:09:43,659 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-02 19:09:43,659 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-02 19:09:43,660 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-02 19:09:43,660 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf [2018-02-02 19:09:43,669 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 19:09:43,669 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 19:09:43,670 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 19:09:43,670 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 19:09:43,670 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 19:09:43,670 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 19:09:43,670 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 19:09:43,671 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 19:09:43,671 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 19:09:43,671 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 19:09:43,671 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 19:09:43,671 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 19:09:43,671 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 19:09:43,671 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 19:09:43,672 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 19:09:43,672 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 19:09:43,672 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 19:09:43,672 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 19:09:43,672 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 19:09:43,672 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 19:09:43,672 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 19:09:43,673 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 19:09:43,673 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-02 19:09:43,673 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-02 19:09:43,673 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-02-02 19:09:43,699 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 19:09:43,707 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 19:09:43,710 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 19:09:43,711 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 19:09:43,712 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 19:09:43,712 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength6_true-valid-memsafety_true-termination.c [2018-02-02 19:09:43,809 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 19:09:43,810 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 19:09:43,811 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 19:09:43,811 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 19:09:43,816 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 19:09:43,817 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 07:09:43" (1/1) ... [2018-02-02 19:09:43,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53250993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 07:09:43, skipping insertion in model container [2018-02-02 19:09:43,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 07:09:43" (1/1) ... [2018-02-02 19:09:43,832 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 19:09:43,845 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 19:09:43,929 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 19:09:43,940 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 19:09:43,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 07:09:43 WrapperNode [2018-02-02 19:09:43,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 19:09:43,943 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 19:09:43,943 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 19:09:43,944 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 19:09:43,951 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 07:09:43" (1/1) ... [2018-02-02 19:09:43,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 07:09:43" (1/1) ... [2018-02-02 19:09:43,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 07:09:43" (1/1) ... [2018-02-02 19:09:43,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 07:09:43" (1/1) ... [2018-02-02 19:09:43,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 07:09:43" (1/1) ... [2018-02-02 19:09:43,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 07:09:43" (1/1) ... [2018-02-02 19:09:43,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 07:09:43" (1/1) ... [2018-02-02 19:09:43,962 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 19:09:43,962 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 19:09:43,962 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 19:09:43,962 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 19:09:43,963 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 07:09:43" (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 19:09:43,998 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 19:09:43,998 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 19:09:43,999 INFO L136 BoogieDeclarations]: Found implementation of procedure foo [2018-02-02 19:09:43,999 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 19:09:43,999 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-02 19:09:43,999 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-02 19:09:43,999 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 19:09:43,999 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 19:09:43,999 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 19:09:43,999 INFO L128 BoogieDeclarations]: Found specification of procedure foo [2018-02-02 19:09:44,000 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 19:09:44,000 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 19:09:44,000 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 19:09:44,127 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 19:09:44,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 07:09:44 BoogieIcfgContainer [2018-02-02 19:09:44,128 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 19:09:44,128 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 19:09:44,128 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 19:09:44,130 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 19:09:44,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 07:09:43" (1/3) ... [2018-02-02 19:09:44,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16ad04aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 07:09:44, skipping insertion in model container [2018-02-02 19:09:44,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 07:09:43" (2/3) ... [2018-02-02 19:09:44,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16ad04aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 07:09:44, skipping insertion in model container [2018-02-02 19:09:44,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 07:09:44" (3/3) ... [2018-02-02 19:09:44,133 INFO L107 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength6_true-valid-memsafety_true-termination.c [2018-02-02 19:09:44,138 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-02 19:09:44,143 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-02-02 19:09:44,177 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 19:09:44,177 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 19:09:44,178 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-02 19:09:44,178 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-02 19:09:44,178 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 19:09:44,178 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 19:09:44,178 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 19:09:44,178 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 19:09:44,179 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 19:09:44,191 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2018-02-02 19:09:44,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-02-02 19:09:44,199 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 19:09:44,200 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 19:09:44,201 INFO L371 AbstractCegarLoop]: === Iteration 1 === [fooErr1RequiresViolation, fooErr0AssertViolation, fooErr2RequiresViolation, mainErr0AssertViolation, mainErr2EnsuresViolation, mainErr1AssertViolation]=== [2018-02-02 19:09:44,205 INFO L82 PathProgramCache]: Analyzing trace with hash -215054890, now seen corresponding path program 1 times [2018-02-02 19:09:44,206 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 19:09:44,207 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 19:09:44,251 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 19:09:44,251 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 19:09:44,251 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 19:09:44,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 19:09:44,299 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 19:09:44,355 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 19:09:44,358 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 19:09:44,358 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-02 19:09:44,360 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-02 19:09:44,372 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-02 19:09:44,372 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 19:09:44,374 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2018-02-02 19:09:44,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 19:09:44,440 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2018-02-02 19:09:44,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-02 19:09:44,442 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-02-02 19:09:44,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 19:09:44,449 INFO L225 Difference]: With dead ends: 63 [2018-02-02 19:09:44,449 INFO L226 Difference]: Without dead ends: 59 [2018-02-02 19:09:44,451 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 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 19:09:44,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-02-02 19:09:44,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 49. [2018-02-02 19:09:44,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-02-02 19:09:44,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 52 transitions. [2018-02-02 19:09:44,518 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 52 transitions. Word has length 11 [2018-02-02 19:09:44,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 19:09:44,518 INFO L432 AbstractCegarLoop]: Abstraction has 49 states and 52 transitions. [2018-02-02 19:09:44,518 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-02 19:09:44,518 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 52 transitions. [2018-02-02 19:09:44,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-02-02 19:09:44,519 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 19:09:44,519 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 19:09:44,519 INFO L371 AbstractCegarLoop]: === Iteration 2 === [fooErr1RequiresViolation, fooErr0AssertViolation, fooErr2RequiresViolation, mainErr0AssertViolation, mainErr2EnsuresViolation, mainErr1AssertViolation]=== [2018-02-02 19:09:44,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1100032001, now seen corresponding path program 1 times [2018-02-02 19:09:44,519 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 19:09:44,519 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 19:09:44,520 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 19:09:44,520 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 19:09:44,520 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 19:09:44,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 19:09:44,535 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 19:09:44,553 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 19:09:44,554 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 19:09:44,554 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-02 19:09:44,555 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-02 19:09:44,555 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-02 19:09:44,555 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 19:09:44,555 INFO L87 Difference]: Start difference. First operand 49 states and 52 transitions. Second operand 3 states. [2018-02-02 19:09:44,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 19:09:44,572 INFO L93 Difference]: Finished difference Result 60 states and 64 transitions. [2018-02-02 19:09:44,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-02 19:09:44,573 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-02-02 19:09:44,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 19:09:44,574 INFO L225 Difference]: With dead ends: 60 [2018-02-02 19:09:44,575 INFO L226 Difference]: Without dead ends: 60 [2018-02-02 19:09:44,575 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 19:09:44,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-02-02 19:09:44,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 52. [2018-02-02 19:09:44,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-02-02 19:09:44,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2018-02-02 19:09:44,583 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 16 [2018-02-02 19:09:44,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 19:09:44,583 INFO L432 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2018-02-02 19:09:44,583 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-02 19:09:44,583 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2018-02-02 19:09:44,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-02-02 19:09:44,584 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 19:09:44,584 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 19:09:44,584 INFO L371 AbstractCegarLoop]: === Iteration 3 === [fooErr1RequiresViolation, fooErr0AssertViolation, fooErr2RequiresViolation, mainErr0AssertViolation, mainErr2EnsuresViolation, mainErr1AssertViolation]=== [2018-02-02 19:09:44,584 INFO L82 PathProgramCache]: Analyzing trace with hash -258746290, now seen corresponding path program 1 times [2018-02-02 19:09:44,584 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 19:09:44,584 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 19:09:44,585 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 19:09:44,585 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 19:09:44,585 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 19:09:44,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 19:09:44,593 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 19:09:44,723 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 19:09:44,723 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 19:09:44,723 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-02 19:09:44,724 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-02 19:09:44,724 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-02 19:09:44,724 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-02-02 19:09:44,724 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand 7 states. [2018-02-02 19:09:44,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 19:09:44,842 INFO L93 Difference]: Finished difference Result 54 states and 58 transitions. [2018-02-02 19:09:44,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-02 19:09:44,842 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2018-02-02 19:09:44,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 19:09:44,843 INFO L225 Difference]: With dead ends: 54 [2018-02-02 19:09:44,843 INFO L226 Difference]: Without dead ends: 54 [2018-02-02 19:09:44,843 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-02-02 19:09:44,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-02-02 19:09:44,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 51. [2018-02-02 19:09:44,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-02-02 19:09:44,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2018-02-02 19:09:44,848 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 17 [2018-02-02 19:09:44,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 19:09:44,848 INFO L432 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2018-02-02 19:09:44,848 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-02 19:09:44,848 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2018-02-02 19:09:44,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-02-02 19:09:44,849 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 19:09:44,849 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 19:09:44,849 INFO L371 AbstractCegarLoop]: === Iteration 4 === [fooErr1RequiresViolation, fooErr0AssertViolation, fooErr2RequiresViolation, mainErr0AssertViolation, mainErr2EnsuresViolation, mainErr1AssertViolation]=== [2018-02-02 19:09:44,849 INFO L82 PathProgramCache]: Analyzing trace with hash -258746291, now seen corresponding path program 1 times [2018-02-02 19:09:44,849 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 19:09:44,850 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 19:09:44,850 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 19:09:44,851 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 19:09:44,851 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 19:09:44,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 19:09:44,859 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 19:09:44,894 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 19:09:44,895 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 19:09:44,895 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 19:09:44,895 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-02 19:09:44,895 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-02 19:09:44,895 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-02 19:09:44,896 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand 6 states. [2018-02-02 19:09:44,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 19:09:44,949 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2018-02-02 19:09:44,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 19:09:44,949 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-02-02 19:09:44,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 19:09:44,950 INFO L225 Difference]: With dead ends: 50 [2018-02-02 19:09:44,950 INFO L226 Difference]: Without dead ends: 50 [2018-02-02 19:09:44,950 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-02-02 19:09:44,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-02-02 19:09:44,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-02-02 19:09:44,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-02-02 19:09:44,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2018-02-02 19:09:44,954 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 17 [2018-02-02 19:09:44,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 19:09:44,954 INFO L432 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2018-02-02 19:09:44,955 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-02 19:09:44,955 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2018-02-02 19:09:44,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-02 19:09:44,955 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 19:09:44,955 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] [2018-02-02 19:09:44,955 INFO L371 AbstractCegarLoop]: === Iteration 5 === [fooErr1RequiresViolation, fooErr0AssertViolation, fooErr2RequiresViolation, mainErr0AssertViolation, mainErr2EnsuresViolation, mainErr1AssertViolation]=== [2018-02-02 19:09:44,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1933852231, now seen corresponding path program 1 times [2018-02-02 19:09:44,956 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 19:09:44,956 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 19:09:44,957 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 19:09:44,957 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 19:09:44,957 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 19:09:44,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 19:09:44,967 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 19:09:45,016 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 19:09:45,016 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-02 19:09:45,016 INFO L213 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-02-02 19:09:45,023 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 19:09:45,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 19:09:45,043 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-02 19:09:45,084 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 19:09:45,116 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-02-02 19:09:45,116 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2018-02-02 19:09:45,116 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-02-02 19:09:45,117 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-02-02 19:09:45,117 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-02-02 19:09:45,117 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand 9 states. [2018-02-02 19:09:45,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 19:09:45,256 INFO L93 Difference]: Finished difference Result 60 states and 63 transitions. [2018-02-02 19:09:45,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-02 19:09:45,258 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-02-02 19:09:45,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 19:09:45,259 INFO L225 Difference]: With dead ends: 60 [2018-02-02 19:09:45,259 INFO L226 Difference]: Without dead ends: 60 [2018-02-02 19:09:45,260 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-02-02 19:09:45,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-02-02 19:09:45,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-02-02 19:09:45,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-02-02 19:09:45,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 63 transitions. [2018-02-02 19:09:45,263 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 63 transitions. Word has length 22 [2018-02-02 19:09:45,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 19:09:45,264 INFO L432 AbstractCegarLoop]: Abstraction has 60 states and 63 transitions. [2018-02-02 19:09:45,264 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-02-02 19:09:45,264 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 63 transitions. [2018-02-02 19:09:45,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-02-02 19:09:45,265 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 19:09:45,265 INFO L351 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 19:09:45,265 INFO L371 AbstractCegarLoop]: === Iteration 6 === [fooErr1RequiresViolation, fooErr0AssertViolation, fooErr2RequiresViolation, mainErr0AssertViolation, mainErr2EnsuresViolation, mainErr1AssertViolation]=== [2018-02-02 19:09:45,265 INFO L82 PathProgramCache]: Analyzing trace with hash 687601263, now seen corresponding path program 1 times [2018-02-02 19:09:45,266 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 19:09:45,266 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 19:09:45,267 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 19:09:45,267 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 19:09:45,267 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 19:09:45,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 19:09:45,283 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 19:09:45,321 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-02-02 19:09:45,321 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 19:09:45,321 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 19:09:45,322 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 19:09:45,322 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 19:09:45,322 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-02-02 19:09:45,322 INFO L87 Difference]: Start difference. First operand 60 states and 63 transitions. Second operand 5 states. [2018-02-02 19:09:45,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 19:09:45,394 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2018-02-02 19:09:45,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 19:09:45,395 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2018-02-02 19:09:45,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 19:09:45,396 INFO L225 Difference]: With dead ends: 70 [2018-02-02 19:09:45,396 INFO L226 Difference]: Without dead ends: 70 [2018-02-02 19:09:45,397 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-02-02 19:09:45,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-02-02 19:09:45,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 56. [2018-02-02 19:09:45,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-02-02 19:09:45,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 59 transitions. [2018-02-02 19:09:45,400 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 59 transitions. Word has length 41 [2018-02-02 19:09:45,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 19:09:45,400 INFO L432 AbstractCegarLoop]: Abstraction has 56 states and 59 transitions. [2018-02-02 19:09:45,400 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 19:09:45,400 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 59 transitions. [2018-02-02 19:09:45,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-02-02 19:09:45,401 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 19:09:45,401 INFO L351 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 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 19:09:45,401 INFO L371 AbstractCegarLoop]: === Iteration 7 === [fooErr1RequiresViolation, fooErr0AssertViolation, fooErr2RequiresViolation, mainErr0AssertViolation, mainErr2EnsuresViolation, mainErr1AssertViolation]=== [2018-02-02 19:09:45,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1072164206, now seen corresponding path program 1 times [2018-02-02 19:09:45,402 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 19:09:45,402 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 19:09:45,403 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 19:09:45,403 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 19:09:45,403 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 19:09:45,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 19:09:45,416 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 19:09:45,452 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-02-02 19:09:45,453 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-02 19:09:45,453 INFO L213 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-02-02 19:09:45,464 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 19:09:45,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 19:09:45,485 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-02 19:09:45,538 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 19:09:45,563 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-02-02 19:09:45,563 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7] total 9 [2018-02-02 19:09:45,563 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-02-02 19:09:45,564 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-02-02 19:09:45,564 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-02-02 19:09:45,564 INFO L87 Difference]: Start difference. First operand 56 states and 59 transitions. Second operand 9 states. [2018-02-02 19:09:45,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 19:09:45,717 INFO L93 Difference]: Finished difference Result 97 states and 102 transitions. [2018-02-02 19:09:45,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-02-02 19:09:45,717 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 49 [2018-02-02 19:09:45,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 19:09:45,718 INFO L225 Difference]: With dead ends: 97 [2018-02-02 19:09:45,718 INFO L226 Difference]: Without dead ends: 94 [2018-02-02 19:09:45,718 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-02-02 19:09:45,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2018-02-02 19:09:45,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 73. [2018-02-02 19:09:45,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-02-02 19:09:45,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 78 transitions. [2018-02-02 19:09:45,722 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 78 transitions. Word has length 49 [2018-02-02 19:09:45,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 19:09:45,723 INFO L432 AbstractCegarLoop]: Abstraction has 73 states and 78 transitions. [2018-02-02 19:09:45,723 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-02-02 19:09:45,723 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 78 transitions. [2018-02-02 19:09:45,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-02-02 19:09:45,726 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 19:09:45,726 INFO L351 BasicCegarLoop]: trace histogram [10, 8, 8, 8, 8, 8, 3, 2, 2, 2, 2, 2, 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 19:09:45,726 INFO L371 AbstractCegarLoop]: === Iteration 8 === [fooErr1RequiresViolation, fooErr0AssertViolation, fooErr2RequiresViolation, mainErr0AssertViolation, mainErr2EnsuresViolation, mainErr1AssertViolation]=== [2018-02-02 19:09:45,727 INFO L82 PathProgramCache]: Analyzing trace with hash 211653399, now seen corresponding path program 2 times [2018-02-02 19:09:45,727 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 19:09:45,727 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 19:09:45,728 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 19:09:45,728 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 19:09:45,728 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 19:09:45,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 19:09:45,755 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 19:09:45,813 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2018-02-02 19:09:45,814 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-02 19:09:45,814 INFO L213 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-02-02 19:09:45,823 INFO L109 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-02-02 19:09:45,837 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-02-02 19:09:45,838 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-02-02 19:09:45,841 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-02 19:09:45,873 INFO L700 Elim1Store]: detected not equals via solver [2018-02-02 19:09:45,878 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 5 [2018-02-02 19:09:45,878 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-02 19:09:45,880 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-02 19:09:45,880 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-02-02 19:09:45,928 INFO L700 Elim1Store]: detected not equals via solver [2018-02-02 19:09:45,929 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 5 [2018-02-02 19:09:45,929 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-02 19:09:45,930 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-02 19:09:45,930 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-02-02 19:09:45,961 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_~#mask~0.base| Int)) (and (= (store |c_old(#valid)| |main_~#mask~0.base| 0) |c_#valid|) (= (select |c_old(#valid)| |main_~#mask~0.base|) 0))) is different from true [2018-02-02 19:09:45,982 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2018-02-02 19:09:46,002 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-02-02 19:09:46,002 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2018-02-02 19:09:46,002 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-02-02 19:09:46,002 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-02-02 19:09:46,003 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=40, Unknown=1, NotChecked=12, Total=72 [2018-02-02 19:09:46,003 INFO L87 Difference]: Start difference. First operand 73 states and 78 transitions. Second operand 9 states. [2018-02-02 19:09:46,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 19:09:46,209 INFO L93 Difference]: Finished difference Result 103 states and 108 transitions. [2018-02-02 19:09:46,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-02-02 19:09:46,209 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 91 [2018-02-02 19:09:46,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 19:09:46,209 INFO L225 Difference]: With dead ends: 103 [2018-02-02 19:09:46,209 INFO L226 Difference]: Without dead ends: 0 [2018-02-02 19:09:46,210 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 86 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=175, Unknown=1, NotChecked=28, Total=272 [2018-02-02 19:09:46,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-02-02 19:09:46,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-02-02 19:09:46,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-02-02 19:09:46,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-02-02 19:09:46,210 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 91 [2018-02-02 19:09:46,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 19:09:46,210 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-02-02 19:09:46,210 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-02-02 19:09:46,210 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-02-02 19:09:46,210 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-02-02 19:09:46,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.02 07:09:46 BoogieIcfgContainer [2018-02-02 19:09:46,214 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-02 19:09:46,214 INFO L168 Benchmark]: Toolchain (without parser) took 2404.96 ms. Allocated memory was 396.9 MB in the beginning and 619.7 MB in the end (delta: 222.8 MB). Free memory was 354.9 MB in the beginning and 478.8 MB in the end (delta: -123.9 MB). Peak memory consumption was 98.9 MB. Max. memory is 5.3 GB. [2018-02-02 19:09:46,215 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 396.9 MB. Free memory is still 360.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 19:09:46,215 INFO L168 Benchmark]: CACSL2BoogieTranslator took 132.57 ms. Allocated memory is still 396.9 MB. Free memory was 354.9 MB in the beginning and 347.0 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 5.3 GB. [2018-02-02 19:09:46,215 INFO L168 Benchmark]: Boogie Preprocessor took 18.70 ms. Allocated memory is still 396.9 MB. Free memory was 347.0 MB in the beginning and 344.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-02 19:09:46,215 INFO L168 Benchmark]: RCFGBuilder took 165.47 ms. Allocated memory is still 396.9 MB. Free memory was 344.3 MB in the beginning and 327.1 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 5.3 GB. [2018-02-02 19:09:46,215 INFO L168 Benchmark]: TraceAbstraction took 2085.58 ms. Allocated memory was 396.9 MB in the beginning and 619.7 MB in the end (delta: 222.8 MB). Free memory was 327.1 MB in the beginning and 478.8 MB in the end (delta: -151.7 MB). Peak memory consumption was 71.1 MB. Max. memory is 5.3 GB. [2018-02-02 19:09:46,216 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 396.9 MB. Free memory is still 360.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 132.57 ms. Allocated memory is still 396.9 MB. Free memory was 354.9 MB in the beginning and 347.0 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 18.70 ms. Allocated memory is still 396.9 MB. Free memory was 347.0 MB in the beginning and 344.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 165.47 ms. Allocated memory is still 396.9 MB. Free memory was 344.3 MB in the beginning and 327.1 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 5.3 GB. * TraceAbstraction took 2085.58 ms. Allocated memory was 396.9 MB in the beginning and 619.7 MB in the end (delta: 222.8 MB). Free memory was 327.1 MB in the beginning and 478.8 MB in the end (delta: -151.7 MB). Peak memory consumption was 71.1 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 16]: array index is always in bounds For all program executions holds that array index is always in bounds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 27]: array index is always in bounds For all program executions holds that array index is always in bounds at this location - PositiveResult [Line: 21]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 30]: array index is always in bounds For all program executions holds that array index is always in bounds at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 46 locations, 6 error locations. SAFE Result, 2.0s OverallTime, 8 OverallIterations, 10 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 277 SDtfs, 377 SDslu, 646 SDs, 0 SdLazy, 497 SolverSat, 75 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 213 GetRequests, 156 SyntacticMatches, 4 SemanticMatches, 53 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=7, 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, 56 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 426 NumberOfCodeBlocks, 354 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 415 ConstructedInterpolants, 62 QuantifiedInterpolants, 88871 SizeOfPredicates, 3 NumberOfNonLiveVariables, 248 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 11 InterpolantComputations, 6 PerfectInterpolantSequences, 477/517 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/ArraysOfVariableLength6_true-valid-memsafety_true-termination.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_19-09-46-223.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength6_true-valid-memsafety_true-termination.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-02_19-09-46-223.csv Received shutdown request...