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 --cacsl2boogietranslator.bitprecise.bitfields false -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/ArraysWithLenghtAtDeclaration_true-valid-memsafety_true-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-11 11:26:19,339 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 11:26:19,341 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 11:26:19,350 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-11 11:26:19,351 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-11 11:26:19,351 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-11 11:26:19,352 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-11 11:26:19,354 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-11 11:26:19,356 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-11 11:26:19,356 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-11 11:26:19,357 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-11 11:26:19,357 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-11 11:26:19,358 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-11 11:26:19,359 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-11 11:26:19,360 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-11 11:26:19,361 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-11 11:26:19,363 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-11 11:26:19,364 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-11 11:26:19,365 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-11 11:26:19,366 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-11 11:26:19,368 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-11 11:26:19,368 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-11 11:26:19,368 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-11 11:26:19,369 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-11 11:26:19,370 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-11 11:26:19,371 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-11 11:26:19,371 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-11 11:26:19,372 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-11 11:26:19,372 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-11 11:26:19,373 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-11 11:26:19,373 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-11 11:26:19,373 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 [2018-04-11 11:26:19,395 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 11:26:19,395 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 11:26:19,396 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-11 11:26:19,396 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-11 11:26:19,396 INFO L133 SettingsManager]: * Use SBE=true [2018-04-11 11:26:19,396 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 11:26:19,397 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 11:26:19,397 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 11:26:19,397 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 11:26:19,397 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 11:26:19,397 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 11:26:19,397 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 11:26:19,397 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-11 11:26:19,398 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 11:26:19,398 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 11:26:19,398 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 11:26:19,398 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-11 11:26:19,398 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-11 11:26:19,398 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 11:26:19,398 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 11:26:19,399 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 11:26:19,399 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-11 11:26:19,399 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-11 11:26:19,399 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-04-11 11:26:19,429 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 11:26:19,442 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 11:26:19,448 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 11:26:19,449 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 11:26:19,450 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 11:26:19,450 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysWithLenghtAtDeclaration_true-valid-memsafety_true-termination.c [2018-04-11 11:26:19,789 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGf7146f6c1 [2018-04-11 11:26:19,877 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 11:26:19,877 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 11:26:19,877 INFO L168 CDTParser]: Scanning ArraysWithLenghtAtDeclaration_true-valid-memsafety_true-termination.c [2018-04-11 11:26:19,878 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 11:26:19,878 INFO L215 ultiparseSymbolTable]: [2018-04-11 11:26:19,878 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 11:26:19,879 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in ArraysWithLenghtAtDeclaration_true-valid-memsafety_true-termination.c [2018-04-11 11:26:19,879 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__foo ('foo') in ArraysWithLenghtAtDeclaration_true-valid-memsafety_true-termination.c [2018-04-11 11:26:19,879 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-11 11:26:19,879 INFO L233 ultiparseSymbolTable]: [2018-04-11 11:26:19,890 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGf7146f6c1 [2018-04-11 11:26:19,893 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 11:26:19,894 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 11:26:19,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 11:26:19,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 11:26:19,898 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 11:26:19,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 11:26:19" (1/1) ... [2018-04-11 11:26:19,901 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bab3a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:26:19, skipping insertion in model container [2018-04-11 11:26:19,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 11:26:19" (1/1) ... [2018-04-11 11:26:19,912 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 11:26:19,921 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 11:26:20,018 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 11:26:20,036 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 11:26:20,041 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 9 non ball SCCs. Number of states in SCCs 9. [2018-04-11 11:26:20,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:26:20 WrapperNode [2018-04-11 11:26:20,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 11:26:20,048 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 11:26:20,048 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 11:26:20,048 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 11:26:20,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:26:20" (1/1) ... [2018-04-11 11:26:20,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:26:20" (1/1) ... [2018-04-11 11:26:20,061 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:26:20" (1/1) ... [2018-04-11 11:26:20,061 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:26:20" (1/1) ... [2018-04-11 11:26:20,064 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:26:20" (1/1) ... [2018-04-11 11:26:20,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:26:20" (1/1) ... [2018-04-11 11:26:20,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:26:20" (1/1) ... [2018-04-11 11:26:20,070 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 11:26:20,071 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 11:26:20,071 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 11:26:20,071 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 11:26:20,072 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:26:20" (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 [2018-04-11 11:26:20,104 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 11:26:20,105 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 11:26:20,105 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__foo [2018-04-11 11:26:20,105 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 11:26:20,105 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__foo [2018-04-11 11:26:20,105 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-11 11:26:20,105 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 11:26:20,105 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 11:26:20,105 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 11:26:20,105 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 11:26:20,105 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 11:26:20,105 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-11 11:26:20,105 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-11 11:26:20,284 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 11:26:20,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 11:26:20 BoogieIcfgContainer [2018-04-11 11:26:20,284 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 11:26:20,285 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 11:26:20,285 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 11:26:20,287 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 11:26:20,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 11:26:19" (1/3) ... [2018-04-11 11:26:20,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@725cc85d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 11:26:20, skipping insertion in model container [2018-04-11 11:26:20,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:26:20" (2/3) ... [2018-04-11 11:26:20,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@725cc85d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 11:26:20, skipping insertion in model container [2018-04-11 11:26:20,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 11:26:20" (3/3) ... [2018-04-11 11:26:20,289 INFO L107 eAbstractionObserver]: Analyzing ICFG ArraysWithLenghtAtDeclaration_true-valid-memsafety_true-termination.c [2018-04-11 11:26:20,295 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-11 11:26:20,301 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-04-11 11:26:20,324 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 11:26:20,325 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 11:26:20,325 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-11 11:26:20,325 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-11 11:26:20,325 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-11 11:26:20,325 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 11:26:20,326 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 11:26:20,326 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 11:26:20,326 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 11:26:20,326 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 11:26:20,334 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2018-04-11 11:26:20,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-04-11 11:26:20,340 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 11:26:20,341 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 11:26:20,341 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-04-11 11:26:20,346 INFO L82 PathProgramCache]: Analyzing trace with hash -895474378, now seen corresponding path program 1 times [2018-04-11 11:26:20,348 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 11:26:20,348 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 11:26:20,380 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 11:26:20,380 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 11:26:20,380 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 11:26:20,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 11:26:20,410 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 11:26:20,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 11:26:20,465 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 11:26:20,465 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-04-11 11:26:20,466 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-11 11:26:20,474 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-11 11:26:20,474 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-11 11:26:20,476 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2018-04-11 11:26:20,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 11:26:20,527 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2018-04-11 11:26:20,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-11 11:26:20,528 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-04-11 11:26:20,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 11:26:20,536 INFO L225 Difference]: With dead ends: 63 [2018-04-11 11:26:20,536 INFO L226 Difference]: Without dead ends: 59 [2018-04-11 11:26:20,537 INFO L567 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 [2018-04-11 11:26:20,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-04-11 11:26:20,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 49. [2018-04-11 11:26:20,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-04-11 11:26:20,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 52 transitions. [2018-04-11 11:26:20,567 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 52 transitions. Word has length 11 [2018-04-11 11:26:20,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 11:26:20,567 INFO L459 AbstractCegarLoop]: Abstraction has 49 states and 52 transitions. [2018-04-11 11:26:20,567 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-11 11:26:20,568 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 52 transitions. [2018-04-11 11:26:20,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-04-11 11:26:20,568 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 11:26:20,568 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 11:26:20,568 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-04-11 11:26:20,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1597342241, now seen corresponding path program 1 times [2018-04-11 11:26:20,569 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 11:26:20,569 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 11:26:20,570 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 11:26:20,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 11:26:20,570 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 11:26:20,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 11:26:20,583 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 11:26:20,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 11:26:20,610 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 11:26:20,611 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-04-11 11:26:20,612 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-11 11:26:20,612 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-11 11:26:20,613 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-11 11:26:20,613 INFO L87 Difference]: Start difference. First operand 49 states and 52 transitions. Second operand 3 states. [2018-04-11 11:26:20,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 11:26:20,655 INFO L93 Difference]: Finished difference Result 60 states and 64 transitions. [2018-04-11 11:26:20,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-11 11:26:20,656 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-04-11 11:26:20,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 11:26:20,658 INFO L225 Difference]: With dead ends: 60 [2018-04-11 11:26:20,658 INFO L226 Difference]: Without dead ends: 60 [2018-04-11 11:26:20,659 INFO L567 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 [2018-04-11 11:26:20,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-04-11 11:26:20,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 52. [2018-04-11 11:26:20,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-04-11 11:26:20,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2018-04-11 11:26:20,666 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 16 [2018-04-11 11:26:20,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 11:26:20,666 INFO L459 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2018-04-11 11:26:20,666 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-11 11:26:20,666 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2018-04-11 11:26:20,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-04-11 11:26:20,667 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 11:26:20,667 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 11:26:20,667 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-04-11 11:26:20,667 INFO L82 PathProgramCache]: Analyzing trace with hash -2021997981, now seen corresponding path program 1 times [2018-04-11 11:26:20,668 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 11:26:20,668 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 11:26:20,668 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 11:26:20,669 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 11:26:20,669 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 11:26:20,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 11:26:20,679 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 11:26:20,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 11:26:20,723 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 11:26:20,724 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 11:26:20,724 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 11:26:20,724 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 11:26:20,724 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-11 11:26:20,725 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand 5 states. [2018-04-11 11:26:20,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 11:26:20,770 INFO L93 Difference]: Finished difference Result 51 states and 55 transitions. [2018-04-11 11:26:20,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 11:26:20,771 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-04-11 11:26:20,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 11:26:20,772 INFO L225 Difference]: With dead ends: 51 [2018-04-11 11:26:20,772 INFO L226 Difference]: Without dead ends: 51 [2018-04-11 11:26:20,772 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-04-11 11:26:20,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-04-11 11:26:20,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-04-11 11:26:20,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-04-11 11:26:20,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2018-04-11 11:26:20,777 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 17 [2018-04-11 11:26:20,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 11:26:20,777 INFO L459 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2018-04-11 11:26:20,777 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 11:26:20,777 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2018-04-11 11:26:20,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-04-11 11:26:20,778 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 11:26:20,778 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 11:26:20,778 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-04-11 11:26:20,778 INFO L82 PathProgramCache]: Analyzing trace with hash -2021997980, now seen corresponding path program 1 times [2018-04-11 11:26:20,779 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 11:26:20,779 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 11:26:20,779 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 11:26:20,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 11:26:20,780 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 11:26:20,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 11:26:20,789 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 11:26:20,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 11:26:20,852 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 11:26:20,852 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 11:26:20,852 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 11:26:20,853 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 11:26:20,853 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-04-11 11:26:20,853 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand 6 states. [2018-04-11 11:26:20,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 11:26:20,923 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2018-04-11 11:26:20,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 11:26:20,923 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-04-11 11:26:20,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 11:26:20,924 INFO L225 Difference]: With dead ends: 53 [2018-04-11 11:26:20,924 INFO L226 Difference]: Without dead ends: 53 [2018-04-11 11:26:20,925 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-04-11 11:26:20,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-04-11 11:26:20,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 50. [2018-04-11 11:26:20,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-04-11 11:26:20,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2018-04-11 11:26:20,929 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 17 [2018-04-11 11:26:20,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 11:26:20,929 INFO L459 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2018-04-11 11:26:20,929 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 11:26:20,929 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2018-04-11 11:26:20,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-04-11 11:26:20,930 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 11:26:20,930 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 11:26:20,930 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-04-11 11:26:20,930 INFO L82 PathProgramCache]: Analyzing trace with hash -869005287, now seen corresponding path program 1 times [2018-04-11 11:26:20,930 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 11:26:20,930 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 11:26:20,931 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 11:26:20,931 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 11:26:20,931 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 11:26:20,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 11:26:20,942 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 11:26:21,014 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 11:26:21,014 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 11:26:21,014 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-04-11 11:26:21,015 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 11:26:21,015 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 11:26:21,015 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-04-11 11:26:21,015 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand 7 states. [2018-04-11 11:26:21,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 11:26:21,086 INFO L93 Difference]: Finished difference Result 72 states and 77 transitions. [2018-04-11 11:26:21,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 11:26:21,086 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-04-11 11:26:21,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 11:26:21,087 INFO L225 Difference]: With dead ends: 72 [2018-04-11 11:26:21,087 INFO L226 Difference]: Without dead ends: 72 [2018-04-11 11:26:21,087 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-04-11 11:26:21,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-04-11 11:26:21,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 63. [2018-04-11 11:26:21,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-04-11 11:26:21,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 68 transitions. [2018-04-11 11:26:21,091 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 68 transitions. Word has length 22 [2018-04-11 11:26:21,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 11:26:21,092 INFO L459 AbstractCegarLoop]: Abstraction has 63 states and 68 transitions. [2018-04-11 11:26:21,092 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 11:26:21,092 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 68 transitions. [2018-04-11 11:26:21,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-04-11 11:26:21,092 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 11:26:21,093 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 11:26:21,093 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-04-11 11:26:21,093 INFO L82 PathProgramCache]: Analyzing trace with hash -994035242, now seen corresponding path program 1 times [2018-04-11 11:26:21,093 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 11:26:21,093 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 11:26:21,094 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 11:26:21,094 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 11:26:21,094 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 11:26:21,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 11:26:21,103 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 11:26:21,125 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 11:26:21,125 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 11:26:21,125 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 11:26:21,125 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 11:26:21,126 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 11:26:21,126 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-04-11 11:26:21,126 INFO L87 Difference]: Start difference. First operand 63 states and 68 transitions. Second operand 5 states. [2018-04-11 11:26:21,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 11:26:21,157 INFO L93 Difference]: Finished difference Result 72 states and 76 transitions. [2018-04-11 11:26:21,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 11:26:21,157 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2018-04-11 11:26:21,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 11:26:21,158 INFO L225 Difference]: With dead ends: 72 [2018-04-11 11:26:21,158 INFO L226 Difference]: Without dead ends: 72 [2018-04-11 11:26:21,158 INFO L567 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 [2018-04-11 11:26:21,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-04-11 11:26:21,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 60. [2018-04-11 11:26:21,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-04-11 11:26:21,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 65 transitions. [2018-04-11 11:26:21,161 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 65 transitions. Word has length 23 [2018-04-11 11:26:21,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 11:26:21,161 INFO L459 AbstractCegarLoop]: Abstraction has 60 states and 65 transitions. [2018-04-11 11:26:21,161 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 11:26:21,161 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 65 transitions. [2018-04-11 11:26:21,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-04-11 11:26:21,162 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 11:26:21,162 INFO L355 BasicCegarLoop]: trace histogram [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, 1] [2018-04-11 11:26:21,162 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-04-11 11:26:21,162 INFO L82 PathProgramCache]: Analyzing trace with hash 701046357, now seen corresponding path program 1 times [2018-04-11 11:26:21,162 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 11:26:21,162 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 11:26:21,163 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 11:26:21,163 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 11:26:21,163 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 11:26:21,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 11:26:21,170 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 11:26:21,212 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 11:26:21,212 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 11:26:21,212 INFO L213 ckRefinementStrategy]: 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 [2018-04-11 11:26:21,218 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 11:26:21,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 11:26:21,255 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 11:26:21,316 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 11:26:21,338 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-04-11 11:26:21,338 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2018-04-11 11:26:21,338 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-11 11:26:21,338 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-11 11:26:21,339 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-04-11 11:26:21,339 INFO L87 Difference]: Start difference. First operand 60 states and 65 transitions. Second operand 11 states. [2018-04-11 11:26:21,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 11:26:21,536 INFO L93 Difference]: Finished difference Result 79 states and 82 transitions. [2018-04-11 11:26:21,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-11 11:26:21,539 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 31 [2018-04-11 11:26:21,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 11:26:21,540 INFO L225 Difference]: With dead ends: 79 [2018-04-11 11:26:21,540 INFO L226 Difference]: Without dead ends: 73 [2018-04-11 11:26:21,540 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2018-04-11 11:26:21,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-04-11 11:26:21,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 60. [2018-04-11 11:26:21,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-04-11 11:26:21,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 63 transitions. [2018-04-11 11:26:21,544 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 63 transitions. Word has length 31 [2018-04-11 11:26:21,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 11:26:21,544 INFO L459 AbstractCegarLoop]: Abstraction has 60 states and 63 transitions. [2018-04-11 11:26:21,544 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-11 11:26:21,544 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 63 transitions. [2018-04-11 11:26:21,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-04-11 11:26:21,545 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 11:26:21,545 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 11:26:21,546 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-04-11 11:26:21,546 INFO L82 PathProgramCache]: Analyzing trace with hash -1365317283, now seen corresponding path program 1 times [2018-04-11 11:26:21,546 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 11:26:21,546 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 11:26:21,547 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 11:26:21,547 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 11:26:21,547 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 11:26:21,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 11:26:21,556 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 11:26:21,577 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 11:26:21,577 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 11:26:21,577 INFO L213 ckRefinementStrategy]: 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 [2018-04-11 11:26:21,587 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 11:26:21,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 11:26:21,603 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 11:26:21,611 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 11:26:21,630 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 11:26:21,630 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-04-11 11:26:21,630 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 11:26:21,630 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 11:26:21,631 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-04-11 11:26:21,631 INFO L87 Difference]: Start difference. First operand 60 states and 63 transitions. Second operand 5 states. [2018-04-11 11:26:21,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 11:26:21,657 INFO L93 Difference]: Finished difference Result 86 states and 90 transitions. [2018-04-11 11:26:21,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 11:26:21,658 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2018-04-11 11:26:21,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 11:26:21,659 INFO L225 Difference]: With dead ends: 86 [2018-04-11 11:26:21,659 INFO L226 Difference]: Without dead ends: 86 [2018-04-11 11:26:21,659 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-04-11 11:26:21,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-04-11 11:26:21,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 69. [2018-04-11 11:26:21,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-04-11 11:26:21,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 73 transitions. [2018-04-11 11:26:21,664 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 73 transitions. Word has length 37 [2018-04-11 11:26:21,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 11:26:21,664 INFO L459 AbstractCegarLoop]: Abstraction has 69 states and 73 transitions. [2018-04-11 11:26:21,664 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 11:26:21,664 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 73 transitions. [2018-04-11 11:26:21,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-04-11 11:26:21,665 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 11:26:21,665 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 11:26:21,665 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-04-11 11:26:21,665 INFO L82 PathProgramCache]: Analyzing trace with hash 425510769, now seen corresponding path program 1 times [2018-04-11 11:26:21,665 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 11:26:21,666 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 11:26:21,666 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 11:26:21,666 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 11:26:21,666 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 11:26:21,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 11:26:21,678 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 11:26:21,731 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-04-11 11:26:21,731 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 11:26:21,731 INFO L213 ckRefinementStrategy]: 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 [2018-04-11 11:26:21,736 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 11:26:21,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 11:26:21,753 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 11:26:21,776 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-04-11 11:26:21,793 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 11:26:21,794 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 3] total 9 [2018-04-11 11:26:21,794 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-11 11:26:21,794 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-11 11:26:21,794 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-04-11 11:26:21,794 INFO L87 Difference]: Start difference. First operand 69 states and 73 transitions. Second operand 10 states. [2018-04-11 11:26:21,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 11:26:21,924 INFO L93 Difference]: Finished difference Result 87 states and 92 transitions. [2018-04-11 11:26:21,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-11 11:26:21,924 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 40 [2018-04-11 11:26:21,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 11:26:21,925 INFO L225 Difference]: With dead ends: 87 [2018-04-11 11:26:21,925 INFO L226 Difference]: Without dead ends: 87 [2018-04-11 11:26:21,925 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2018-04-11 11:26:21,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-04-11 11:26:21,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 67. [2018-04-11 11:26:21,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-04-11 11:26:21,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 71 transitions. [2018-04-11 11:26:21,929 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 71 transitions. Word has length 40 [2018-04-11 11:26:21,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 11:26:21,929 INFO L459 AbstractCegarLoop]: Abstraction has 67 states and 71 transitions. [2018-04-11 11:26:21,929 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-11 11:26:21,929 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 71 transitions. [2018-04-11 11:26:21,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-04-11 11:26:21,930 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 11:26:21,930 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 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] [2018-04-11 11:26:21,930 INFO L408 AbstractCegarLoop]: === Iteration 10 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-04-11 11:26:21,930 INFO L82 PathProgramCache]: Analyzing trace with hash -886796539, now seen corresponding path program 2 times [2018-04-11 11:26:21,930 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 11:26:21,930 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 11:26:21,931 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 11:26:21,931 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 11:26:21,931 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 11:26:21,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 11:26:21,939 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 11:26:21,958 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-04-11 11:26:21,958 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 11:26:21,958 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 11:26:21,964 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 11:26:21,971 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-04-11 11:26:21,972 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 11:26:21,973 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 11:26:21,997 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 11:26:22,001 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 [2018-04-11 11:26:22,002 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 11:26:22,003 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. [2018-04-11 11:26:22,004 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-04-11 11:26:22,030 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 11:26:22,031 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 [2018-04-11 11:26:22,031 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 11:26:22,032 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. [2018-04-11 11:26:22,033 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-04-11 11:26:22,060 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 [2018-04-11 11:26:22,069 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-04-11 11:26:22,087 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-04-11 11:26:22,087 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2018-04-11 11:26:22,087 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-11 11:26:22,087 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-11 11:26:22,088 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=40, Unknown=1, NotChecked=12, Total=72 [2018-04-11 11:26:22,088 INFO L87 Difference]: Start difference. First operand 67 states and 71 transitions. Second operand 9 states. [2018-04-11 11:26:22,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 11:26:22,261 INFO L93 Difference]: Finished difference Result 97 states and 101 transitions. [2018-04-11 11:26:22,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-11 11:26:22,262 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 55 [2018-04-11 11:26:22,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 11:26:22,263 INFO L225 Difference]: With dead ends: 97 [2018-04-11 11:26:22,263 INFO L226 Difference]: Without dead ends: 0 [2018-04-11 11:26:22,263 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 50 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=175, Unknown=1, NotChecked=28, Total=272 [2018-04-11 11:26:22,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-04-11 11:26:22,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-04-11 11:26:22,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-04-11 11:26:22,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-04-11 11:26:22,264 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 55 [2018-04-11 11:26:22,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 11:26:22,264 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-04-11 11:26:22,265 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-11 11:26:22,265 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-04-11 11:26:22,265 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-04-11 11:26:22,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.04 11:26:22 BoogieIcfgContainer [2018-04-11 11:26:22,269 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-11 11:26:22,270 INFO L168 Benchmark]: Toolchain (without parser) took 2376.59 ms. Allocated memory was 398.5 MB in the beginning and 631.2 MB in the end (delta: 232.8 MB). Free memory was 338.1 MB in the beginning and 418.8 MB in the end (delta: -80.7 MB). Peak memory consumption was 152.0 MB. Max. memory is 5.3 GB. [2018-04-11 11:26:22,271 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 398.5 MB. Free memory is still 357.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 11:26:22,271 INFO L168 Benchmark]: CACSL2BoogieTranslator took 153.22 ms. Allocated memory is still 398.5 MB. Free memory was 336.2 MB in the beginning and 326.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 5.3 GB. [2018-04-11 11:26:22,272 INFO L168 Benchmark]: Boogie Preprocessor took 22.47 ms. Allocated memory is still 398.5 MB. Free memory was 326.9 MB in the beginning and 325.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-04-11 11:26:22,272 INFO L168 Benchmark]: RCFGBuilder took 213.43 ms. Allocated memory was 398.5 MB in the beginning and 602.9 MB in the end (delta: 204.5 MB). Free memory was 325.5 MB in the beginning and 566.7 MB in the end (delta: -241.2 MB). Peak memory consumption was 25.1 MB. Max. memory is 5.3 GB. [2018-04-11 11:26:22,272 INFO L168 Benchmark]: TraceAbstraction took 1984.88 ms. Allocated memory was 602.9 MB in the beginning and 631.2 MB in the end (delta: 28.3 MB). Free memory was 565.1 MB in the beginning and 418.8 MB in the end (delta: 146.2 MB). Peak memory consumption was 174.5 MB. Max. memory is 5.3 GB. [2018-04-11 11:26:22,273 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 398.5 MB. Free memory is still 357.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 153.22 ms. Allocated memory is still 398.5 MB. Free memory was 336.2 MB in the beginning and 326.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 22.47 ms. Allocated memory is still 398.5 MB. Free memory was 326.9 MB in the beginning and 325.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 213.43 ms. Allocated memory was 398.5 MB in the beginning and 602.9 MB in the end (delta: 204.5 MB). Free memory was 325.5 MB in the beginning and 566.7 MB in the end (delta: -241.2 MB). Peak memory consumption was 25.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1984.88 ms. Allocated memory was 602.9 MB in the beginning and 631.2 MB in the end (delta: 28.3 MB). Free memory was 565.1 MB in the beginning and 418.8 MB in the end (delta: 146.2 MB). Peak memory consumption was 174.5 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 30]: array index is always in bounds For all program executions holds that array index is always in bounds at this location - PositiveResult [Line: 23]: all allocated memory was freed For all program executions holds that all allocated memory was freed 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: 18]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: 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, 1.9s OverallTime, 10 OverallIterations, 4 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 333 SDtfs, 471 SDslu, 746 SDs, 0 SdLazy, 694 SolverSat, 87 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 232 GetRequests, 161 SyntacticMatches, 4 SemanticMatches, 67 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred in iteration=8, 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, 10 MinimizatonAttempts, 92 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 432 NumberOfCodeBlocks, 396 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 418 ConstructedInterpolants, 26 QuantifiedInterpolants, 47450 SizeOfPredicates, 5 NumberOfNonLiveVariables, 340 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 14 InterpolantComputations, 8 PerfectInterpolantSequences, 104/124 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/ArraysWithLenghtAtDeclaration_true-valid-memsafety_true-termination.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-11_11-26-22-280.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysWithLenghtAtDeclaration_true-valid-memsafety_true-termination.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-11_11-26-22-280.csv Received shutdown request...