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/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memset3_true-valid-memsafety_true-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-453dfda-m [2018-04-09 22:12:48,326 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-09 22:12:48,328 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-09 22:12:48,342 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-09 22:12:48,343 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-09 22:12:48,344 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-09 22:12:48,345 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-09 22:12:48,347 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-09 22:12:48,349 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-09 22:12:48,350 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-09 22:12:48,351 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-09 22:12:48,352 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-09 22:12:48,353 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-09 22:12:48,354 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-09 22:12:48,355 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-09 22:12:48,358 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-09 22:12:48,360 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-09 22:12:48,362 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-09 22:12:48,363 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-09 22:12:48,364 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-09 22:12:48,367 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-09 22:12:48,367 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-09 22:12:48,367 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-09 22:12:48,368 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-09 22:12:48,369 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-09 22:12:48,371 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-09 22:12:48,371 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-09 22:12:48,372 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-09 22:12:48,372 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-09 22:12:48,373 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-09 22:12:48,373 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-09 22:12:48,374 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf [2018-04-09 22:12:48,399 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-09 22:12:48,399 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-09 22:12:48,400 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-09 22:12:48,400 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-09 22:12:48,401 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-09 22:12:48,401 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-09 22:12:48,401 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-09 22:12:48,401 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-09 22:12:48,401 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-04-09 22:12:48,402 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-09 22:12:48,402 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-09 22:12:48,402 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-09 22:12:48,402 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-09 22:12:48,403 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-09 22:12:48,403 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-09 22:12:48,403 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-09 22:12:48,403 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-09 22:12:48,403 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-09 22:12:48,404 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-09 22:12:48,404 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-09 22:12:48,404 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-09 22:12:48,404 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-09 22:12:48,404 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-09 22:12:48,404 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-09 22:12:48,405 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-09 22:12:48,405 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-09 22:12:48,405 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-09 22:12:48,405 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-09 22:12:48,406 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-09 22:12:48,406 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-09 22:12:48,406 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-09 22:12:48,406 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-09 22:12:48,406 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 22:12:48,406 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-09 22:12:48,407 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-09 22:12:48,408 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-09 22:12:48,408 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-09 22:12:48,408 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-09 22:12:48,443 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-09 22:12:48,456 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-09 22:12:48,460 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-09 22:12:48,461 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-09 22:12:48,462 INFO L276 PluginConnector]: CDTParser initialized [2018-04-09 22:12:48,463 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memset3_true-valid-memsafety_true-termination.c [2018-04-09 22:12:48,785 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG7ad113732 [2018-04-09 22:12:48,899 INFO L287 CDTParser]: IsIndexed: true [2018-04-09 22:12:48,900 INFO L288 CDTParser]: Found 1 translation units. [2018-04-09 22:12:48,900 INFO L168 CDTParser]: Scanning memset3_true-valid-memsafety_true-termination.c [2018-04-09 22:12:48,902 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-09 22:12:48,902 INFO L215 ultiparseSymbolTable]: [2018-04-09 22:12:48,902 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-09 22:12:48,902 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in memset3_true-valid-memsafety_true-termination.c [2018-04-09 22:12:48,902 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-09 22:12:48,903 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemset__true_valid_memsafety_true_termination_c____kernel_size_t in memset3_true-valid-memsafety_true-termination.c [2018-04-09 22:12:48,903 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemset__true_valid_memsafety_true_termination_c__size_t in memset3_true-valid-memsafety_true-termination.c [2018-04-09 22:12:48,903 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemset__true_valid_memsafety_true_termination_c____u32 in memset3_true-valid-memsafety_true-termination.c [2018-04-09 22:12:48,919 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG7ad113732 [2018-04-09 22:12:48,923 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-09 22:12:48,925 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-09 22:12:48,926 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-09 22:12:48,926 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-09 22:12:48,932 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-09 22:12:48,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.04 10:12:48" (1/1) ... [2018-04-09 22:12:48,936 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5be8c280 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:12:48, skipping insertion in model container [2018-04-09 22:12:48,936 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.04 10:12:48" (1/1) ... [2018-04-09 22:12:48,951 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-09 22:12:48,963 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-09 22:12:49,091 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-09 22:12:49,118 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-09 22:12:49,123 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 7 non ball SCCs. Number of states in SCCs 7. [2018-04-09 22:12:49,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:12:49 WrapperNode [2018-04-09 22:12:49,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-09 22:12:49,130 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-09 22:12:49,130 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-09 22:12:49,130 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-09 22:12:49,141 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:12:49" (1/1) ... [2018-04-09 22:12:49,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:12:49" (1/1) ... [2018-04-09 22:12:49,149 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:12:49" (1/1) ... [2018-04-09 22:12:49,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:12:49" (1/1) ... [2018-04-09 22:12:49,152 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:12:49" (1/1) ... [2018-04-09 22:12:49,156 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:12:49" (1/1) ... [2018-04-09 22:12:49,157 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:12:49" (1/1) ... [2018-04-09 22:12:49,158 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-09 22:12:49,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-09 22:12:49,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-09 22:12:49,159 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-09 22:12:49,160 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:12:49" (1/1) ... No working directory specified, using /storage/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 [2018-04-09 22:12:49,222 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-09 22:12:49,222 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-09 22:12:49,222 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-09 22:12:49,222 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-04-09 22:12:49,223 INFO L128 BoogieDeclarations]: Found specification of procedure memset [2018-04-09 22:12:49,223 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-09 22:12:49,223 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-09 22:12:49,223 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-04-09 22:12:49,223 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-09 22:12:49,223 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-09 22:12:49,224 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-09 22:12:49,373 WARN L446 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-04-09 22:12:49,439 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-09 22:12:49,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.04 10:12:49 BoogieIcfgContainer [2018-04-09 22:12:49,440 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-09 22:12:49,440 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-09 22:12:49,440 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-09 22:12:49,443 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-09 22:12:49,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.04 10:12:48" (1/3) ... [2018-04-09 22:12:49,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2374aad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.04 10:12:49, skipping insertion in model container [2018-04-09 22:12:49,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:12:49" (2/3) ... [2018-04-09 22:12:49,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2374aad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.04 10:12:49, skipping insertion in model container [2018-04-09 22:12:49,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.04 10:12:49" (3/3) ... [2018-04-09 22:12:49,446 INFO L107 eAbstractionObserver]: Analyzing ICFG memset3_true-valid-memsafety_true-termination.c [2018-04-09 22:12:49,456 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-09 22:12:49,462 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-04-09 22:12:49,498 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-09 22:12:49,499 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-09 22:12:49,499 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-09 22:12:49,499 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-09 22:12:49,499 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-09 22:12:49,500 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-09 22:12:49,500 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-09 22:12:49,500 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-09 22:12:49,500 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-09 22:12:49,501 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-09 22:12:49,518 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-04-09 22:12:49,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-04-09 22:12:49,525 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:12:49,525 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 22:12:49,526 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-09 22:12:49,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1204970025, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 22:12:49,541 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:12:49,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:12:49,579 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:12:49,621 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-09 22:12:49,622 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 22:12:49,632 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:12:49,632 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-09 22:12:49,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:12:49,652 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:12:49,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:12:49,682 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 22:12:49,682 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-09 22:12:49,684 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-09 22:12:49,694 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-09 22:12:49,694 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-09 22:12:49,696 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 4 states. [2018-04-09 22:12:49,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:12:49,765 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-04-09 22:12:49,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-09 22:12:49,766 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-04-09 22:12:49,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:12:49,778 INFO L225 Difference]: With dead ends: 28 [2018-04-09 22:12:49,779 INFO L226 Difference]: Without dead ends: 24 [2018-04-09 22:12:49,782 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-09 22:12:49,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-04-09 22:12:49,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-04-09 22:12:49,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-04-09 22:12:49,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-04-09 22:12:49,818 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 10 [2018-04-09 22:12:49,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:12:49,818 INFO L459 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-04-09 22:12:49,818 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-09 22:12:49,818 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-04-09 22:12:49,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-04-09 22:12:49,819 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:12:49,819 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 22:12:49,819 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-09 22:12:49,820 INFO L82 PathProgramCache]: Analyzing trace with hash 1204970026, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 22:12:49,830 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:12:49,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:12:49,849 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:12:49,863 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-09 22:12:49,864 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 22:12:49,875 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:12:49,875 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-09 22:12:49,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:12:49,896 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:12:49,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:12:49,984 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 22:12:49,984 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2018-04-09 22:12:49,985 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-09 22:12:49,986 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-09 22:12:49,986 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-04-09 22:12:49,986 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 6 states. [2018-04-09 22:12:50,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:12:50,026 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2018-04-09 22:12:50,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-09 22:12:50,026 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2018-04-09 22:12:50,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:12:50,027 INFO L225 Difference]: With dead ends: 24 [2018-04-09 22:12:50,027 INFO L226 Difference]: Without dead ends: 23 [2018-04-09 22:12:50,028 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-04-09 22:12:50,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-04-09 22:12:50,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-04-09 22:12:50,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-04-09 22:12:50,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2018-04-09 22:12:50,033 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 10 [2018-04-09 22:12:50,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:12:50,033 INFO L459 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2018-04-09 22:12:50,033 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-09 22:12:50,034 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2018-04-09 22:12:50,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-04-09 22:12:50,034 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:12:50,035 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 22:12:50,035 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-09 22:12:50,035 INFO L82 PathProgramCache]: Analyzing trace with hash -658445592, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 22:12:50,047 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:12:50,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:12:50,065 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:12:50,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:12:50,081 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:12:50,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:12:50,141 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 22:12:50,142 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2018-04-09 22:12:50,142 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-09 22:12:50,142 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-09 22:12:50,142 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-04-09 22:12:50,142 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 6 states. [2018-04-09 22:12:50,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:12:50,197 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2018-04-09 22:12:50,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-09 22:12:50,198 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-04-09 22:12:50,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:12:50,199 INFO L225 Difference]: With dead ends: 36 [2018-04-09 22:12:50,199 INFO L226 Difference]: Without dead ends: 26 [2018-04-09 22:12:50,200 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-04-09 22:12:50,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-04-09 22:12:50,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-04-09 22:12:50,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-04-09 22:12:50,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2018-04-09 22:12:50,205 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 21 [2018-04-09 22:12:50,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:12:50,205 INFO L459 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2018-04-09 22:12:50,205 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-09 22:12:50,206 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2018-04-09 22:12:50,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-09 22:12:50,207 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:12:50,207 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] [2018-04-09 22:12:50,207 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-09 22:12:50,207 INFO L82 PathProgramCache]: Analyzing trace with hash -492095638, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 22:12:50,215 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:12:50,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:12:50,241 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:12:50,279 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:12:50,279 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:12:50,364 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:12:50,386 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 22:12:50,386 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2018-04-09 22:12:50,387 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-09 22:12:50,387 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-09 22:12:50,387 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-04-09 22:12:50,388 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 10 states. [2018-04-09 22:12:50,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:12:50,455 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2018-04-09 22:12:50,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-09 22:12:50,456 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2018-04-09 22:12:50,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:12:50,457 INFO L225 Difference]: With dead ends: 44 [2018-04-09 22:12:50,457 INFO L226 Difference]: Without dead ends: 34 [2018-04-09 22:12:50,457 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2018-04-09 22:12:50,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-04-09 22:12:50,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-04-09 22:12:50,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-04-09 22:12:50,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2018-04-09 22:12:50,464 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 25 [2018-04-09 22:12:50,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:12:50,464 INFO L459 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2018-04-09 22:12:50,464 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-09 22:12:50,464 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2018-04-09 22:12:50,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-04-09 22:12:50,466 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:12:50,466 INFO L355 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 22:12:50,466 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-09 22:12:50,466 INFO L82 PathProgramCache]: Analyzing trace with hash 961944942, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 22:12:50,474 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:12:50,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:12:50,491 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:12:50,565 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:12:50,565 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:12:50,859 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:12:50,880 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 22:12:50,880 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2018-04-09 22:12:50,881 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-09 22:12:50,881 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-09 22:12:50,881 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=167, Unknown=0, NotChecked=0, Total=306 [2018-04-09 22:12:50,882 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 18 states. [2018-04-09 22:12:50,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:12:50,964 INFO L93 Difference]: Finished difference Result 60 states and 67 transitions. [2018-04-09 22:12:50,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-09 22:12:50,965 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 33 [2018-04-09 22:12:50,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:12:50,967 INFO L225 Difference]: With dead ends: 60 [2018-04-09 22:12:50,967 INFO L226 Difference]: Without dead ends: 50 [2018-04-09 22:12:50,968 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=151, Invalid=191, Unknown=0, NotChecked=0, Total=342 [2018-04-09 22:12:50,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-04-09 22:12:50,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-04-09 22:12:50,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-04-09 22:12:50,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2018-04-09 22:12:50,976 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 33 [2018-04-09 22:12:50,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:12:50,976 INFO L459 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2018-04-09 22:12:50,976 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-09 22:12:50,976 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2018-04-09 22:12:50,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-04-09 22:12:50,978 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:12:50,978 INFO L355 BasicCegarLoop]: trace histogram [14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 22:12:50,979 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-09 22:12:50,979 INFO L82 PathProgramCache]: Analyzing trace with hash -1248649866, now seen corresponding path program 3 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 22:12:50,987 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:12:51,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:12:51,009 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:12:51,164 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:12:51,164 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:12:51,580 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:12:51,614 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 22:12:51,614 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2018-04-09 22:12:51,614 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-04-09 22:12:51,615 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-04-09 22:12:51,615 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=531, Invalid=591, Unknown=0, NotChecked=0, Total=1122 [2018-04-09 22:12:51,616 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand 34 states. [2018-04-09 22:12:51,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:12:51,856 INFO L93 Difference]: Finished difference Result 92 states and 107 transitions. [2018-04-09 22:12:51,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-04-09 22:12:51,856 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 49 [2018-04-09 22:12:51,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:12:51,858 INFO L225 Difference]: With dead ends: 92 [2018-04-09 22:12:51,858 INFO L226 Difference]: Without dead ends: 82 [2018-04-09 22:12:51,859 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 64 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=551, Invalid=639, Unknown=0, NotChecked=0, Total=1190 [2018-04-09 22:12:51,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-04-09 22:12:51,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2018-04-09 22:12:51,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-04-09 22:12:51,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 82 transitions. [2018-04-09 22:12:51,868 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 82 transitions. Word has length 49 [2018-04-09 22:12:51,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:12:51,868 INFO L459 AbstractCegarLoop]: Abstraction has 82 states and 82 transitions. [2018-04-09 22:12:51,868 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-04-09 22:12:51,868 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 82 transitions. [2018-04-09 22:12:51,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-04-09 22:12:51,870 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:12:51,870 INFO L355 BasicCegarLoop]: trace histogram [30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 22:12:51,870 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-09 22:12:51,870 INFO L82 PathProgramCache]: Analyzing trace with hash -736498298, now seen corresponding path program 4 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 22:12:51,882 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:12:51,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:12:51,913 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:12:52,382 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 0 proven. 900 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:12:52,382 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:12:53,879 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 0 proven. 900 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:12:53,912 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 22:12:53,913 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 66 [2018-04-09 22:12:53,913 INFO L442 AbstractCegarLoop]: Interpolant automaton has 66 states [2018-04-09 22:12:53,914 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2018-04-09 22:12:53,916 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2083, Invalid=2207, Unknown=0, NotChecked=0, Total=4290 [2018-04-09 22:12:53,916 INFO L87 Difference]: Start difference. First operand 82 states and 82 transitions. Second operand 66 states. [2018-04-09 22:12:54,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:12:54,356 INFO L93 Difference]: Finished difference Result 156 states and 187 transitions. [2018-04-09 22:12:54,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2018-04-09 22:12:54,356 INFO L78 Accepts]: Start accepts. Automaton has 66 states. Word has length 81 [2018-04-09 22:12:54,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:12:54,358 INFO L225 Difference]: With dead ends: 156 [2018-04-09 22:12:54,358 INFO L226 Difference]: Without dead ends: 146 [2018-04-09 22:12:54,359 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2119, Invalid=2303, Unknown=0, NotChecked=0, Total=4422 [2018-04-09 22:12:54,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-04-09 22:12:54,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2018-04-09 22:12:54,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2018-04-09 22:12:54,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 146 transitions. [2018-04-09 22:12:54,371 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 146 transitions. Word has length 81 [2018-04-09 22:12:54,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:12:54,371 INFO L459 AbstractCegarLoop]: Abstraction has 146 states and 146 transitions. [2018-04-09 22:12:54,372 INFO L460 AbstractCegarLoop]: Interpolant automaton has 66 states. [2018-04-09 22:12:54,372 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 146 transitions. [2018-04-09 22:12:54,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-04-09 22:12:54,373 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:12:54,373 INFO L355 BasicCegarLoop]: trace histogram [62, 62, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 22:12:54,373 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-09 22:12:54,374 INFO L82 PathProgramCache]: Analyzing trace with hash -589640282, now seen corresponding path program 5 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 22:12:54,379 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:12:54,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:12:54,419 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:12:55,661 INFO L134 CoverageAnalysis]: Checked inductivity of 3844 backedges. 0 proven. 3844 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:12:55,661 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:12:55,843 WARN L148 SmtUtils]: Spent 176ms on a formula simplification that was a NOOP. DAG size: 194 [2018-04-09 22:12:56,025 WARN L148 SmtUtils]: Spent 179ms on a formula simplification that was a NOOP. DAG size: 194 [2018-04-09 22:12:59,287 INFO L134 CoverageAnalysis]: Checked inductivity of 3844 backedges. 0 proven. 3844 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:12:59,309 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 22:12:59,309 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66] total 130 [2018-04-09 22:12:59,310 INFO L442 AbstractCegarLoop]: Interpolant automaton has 130 states [2018-04-09 22:12:59,311 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2018-04-09 22:12:59,313 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7224, Invalid=9546, Unknown=0, NotChecked=0, Total=16770 [2018-04-09 22:12:59,314 INFO L87 Difference]: Start difference. First operand 146 states and 146 transitions. Second operand 130 states. [2018-04-09 22:12:59,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:12:59,647 INFO L93 Difference]: Finished difference Result 192 states and 209 transitions. [2018-04-09 22:12:59,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2018-04-09 22:12:59,648 INFO L78 Accepts]: Start accepts. Automaton has 130 states. Word has length 145 [2018-04-09 22:12:59,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:12:59,651 INFO L225 Difference]: With dead ends: 192 [2018-04-09 22:12:59,651 INFO L226 Difference]: Without dead ends: 182 [2018-04-09 22:12:59,655 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 160 SyntacticMatches, 1 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2914 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=7292, Invalid=9738, Unknown=0, NotChecked=0, Total=17030 [2018-04-09 22:12:59,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-04-09 22:12:59,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2018-04-09 22:12:59,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-04-09 22:12:59,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 182 transitions. [2018-04-09 22:12:59,673 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 182 transitions. Word has length 145 [2018-04-09 22:12:59,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:12:59,674 INFO L459 AbstractCegarLoop]: Abstraction has 182 states and 182 transitions. [2018-04-09 22:12:59,674 INFO L460 AbstractCegarLoop]: Interpolant automaton has 130 states. [2018-04-09 22:12:59,674 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 182 transitions. [2018-04-09 22:12:59,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-04-09 22:12:59,678 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:12:59,678 INFO L355 BasicCegarLoop]: trace histogram [80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 22:12:59,678 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-09 22:12:59,678 INFO L82 PathProgramCache]: Analyzing trace with hash 252515128, now seen corresponding path program 6 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 22:12:59,684 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:12:59,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:12:59,722 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:12:59,737 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:12:59,738 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 [2018-04-09 22:12:59,739 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 22:12:59,740 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. [2018-04-09 22:12:59,740 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-04-09 22:12:59,823 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_~#cstats~0.base| Int)) (and (= |c_#valid| (store |c_old(#valid)| |main_~#cstats~0.base| 0)) (= 0 (select |c_old(#valid)| |main_~#cstats~0.base|)))) is different from true [2018-04-09 22:12:59,874 INFO L134 CoverageAnalysis]: Checked inductivity of 6400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6400 trivial. 0 not checked. [2018-04-09 22:12:59,875 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:12:59,894 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_~#cstats~0.base_14| Int)) (or (not (= 0 (select |c_#valid| |v_main_~#cstats~0.base_14|))) (= (store |c_#valid| |v_main_~#cstats~0.base_14| 0) |c_old(#valid)|))) is different from false [2018-04-09 22:12:59,915 INFO L134 CoverageAnalysis]: Checked inductivity of 6400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6400 trivial. 0 not checked. [2018-04-09 22:12:59,937 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 22:12:59,937 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 7 [2018-04-09 22:12:59,938 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-09 22:12:59,938 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-09 22:12:59,938 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=21, Unknown=2, NotChecked=18, Total=56 [2018-04-09 22:12:59,938 INFO L87 Difference]: Start difference. First operand 182 states and 182 transitions. Second operand 8 states. [2018-04-09 22:12:59,945 WARN L1011 $PredicateComparison]: unable to prove that (and (forall ((|v_main_~#cstats~0.base_14| Int)) (or (not (= 0 (select |c_#valid| |v_main_~#cstats~0.base_14|))) (= (store |c_#valid| |v_main_~#cstats~0.base_14| 0) |c_old(#valid)|))) (= |c_#valid| |c_old(#valid)|)) is different from false [2018-04-09 22:13:00,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:13:00,048 INFO L93 Difference]: Finished difference Result 182 states and 182 transitions. [2018-04-09 22:13:00,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-09 22:13:00,048 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 181 [2018-04-09 22:13:00,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:13:00,048 INFO L225 Difference]: With dead ends: 182 [2018-04-09 22:13:00,049 INFO L226 Difference]: Without dead ends: 0 [2018-04-09 22:13:00,050 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 354 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=52, Unknown=3, NotChecked=48, Total=132 [2018-04-09 22:13:00,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-04-09 22:13:00,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-04-09 22:13:00,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-04-09 22:13:00,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-04-09 22:13:00,051 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 181 [2018-04-09 22:13:00,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:13:00,051 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-04-09 22:13:00,051 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-09 22:13:00,051 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-04-09 22:13:00,051 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-04-09 22:13:00,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-04-09 22:13:00,227 WARN L151 SmtUtils]: Spent 130ms on a formula simplification. DAG size of input: 311 DAG size of output 9 [2018-04-09 22:13:00,334 INFO L416 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-04-09 22:13:00,334 INFO L416 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-04-09 22:13:00,334 INFO L412 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-04-09 22:13:00,334 INFO L416 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-04-09 22:13:00,334 INFO L419 ceAbstractionStarter]: At program point #Ultimate.C_memsetENTRY(line -1) the Hoare annotation is: true [2018-04-09 22:13:00,334 INFO L416 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-04-09 22:13:00,334 INFO L416 ceAbstractionStarter]: For program point L-1'(line -1) no Hoare annotation was computed. [2018-04-09 22:13:00,335 INFO L419 ceAbstractionStarter]: At program point L-1''(line -1) the Hoare annotation is: true [2018-04-09 22:13:00,335 INFO L416 ceAbstractionStarter]: For program point #Ultimate.C_memsetFINAL(line -1) no Hoare annotation was computed. [2018-04-09 22:13:00,335 INFO L416 ceAbstractionStarter]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2018-04-09 22:13:00,335 INFO L416 ceAbstractionStarter]: For program point #Ultimate.C_memsetEXIT(line -1) no Hoare annotation was computed. [2018-04-09 22:13:00,335 INFO L419 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-04-09 22:13:00,335 INFO L419 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-04-09 22:13:00,335 INFO L416 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-04-09 22:13:00,335 INFO L416 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-04-09 22:13:00,335 INFO L416 ceAbstractionStarter]: For program point mainErr1RequiresViolation(line 29) no Hoare annotation was computed. [2018-04-09 22:13:00,336 INFO L416 ceAbstractionStarter]: For program point L30(line 30) no Hoare annotation was computed. [2018-04-09 22:13:00,336 INFO L416 ceAbstractionStarter]: For program point mainFINAL(lines 25 31) no Hoare annotation was computed. [2018-04-09 22:13:00,336 INFO L416 ceAbstractionStarter]: For program point mainErr2EnsuresViolationMEMORY_LEAK(lines 25 31) no Hoare annotation was computed. [2018-04-09 22:13:00,336 INFO L416 ceAbstractionStarter]: For program point mainErr0RequiresViolation(line 29) no Hoare annotation was computed. [2018-04-09 22:13:00,336 INFO L416 ceAbstractionStarter]: For program point mainEXIT(lines 25 31) no Hoare annotation was computed. [2018-04-09 22:13:00,336 INFO L412 ceAbstractionStarter]: At program point mainENTRY(lines 25 31) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-04-09 22:13:00,336 INFO L416 ceAbstractionStarter]: For program point L26(line 26) no Hoare annotation was computed. [2018-04-09 22:13:00,337 INFO L412 ceAbstractionStarter]: At program point L29(line 29) the Hoare annotation is: (and (= 80 (select |#length| main_~point~0.base)) (= 80 (select |#length| |main_~#cstats~0.base|)) (= |#valid| (store |old(#valid)| |main_~#cstats~0.base| 1)) (= main_~point~0.offset 0) (= 0 (select |old(#valid)| |main_~#cstats~0.base|)) (= 1 (select |#valid| main_~point~0.base)) (= 0 |main_~#cstats~0.offset|)) [2018-04-09 22:13:00,337 INFO L416 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-04-09 22:13:00,337 INFO L416 ceAbstractionStarter]: For program point L26'(line 26) no Hoare annotation was computed. [2018-04-09 22:13:00,337 INFO L416 ceAbstractionStarter]: For program point L26''(line 26) no Hoare annotation was computed. [2018-04-09 22:13:00,337 INFO L416 ceAbstractionStarter]: For program point L29'(line 29) no Hoare annotation was computed. [2018-04-09 22:13:00,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.04 10:13:00 BoogieIcfgContainer [2018-04-09 22:13:00,343 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-09 22:13:00,344 INFO L168 Benchmark]: Toolchain (without parser) took 11420.13 ms. Allocated memory was 308.3 MB in the beginning and 626.0 MB in the end (delta: 317.7 MB). Free memory was 251.4 MB in the beginning and 340.6 MB in the end (delta: -89.2 MB). Peak memory consumption was 228.5 MB. Max. memory is 5.3 GB. [2018-04-09 22:13:00,346 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 308.3 MB. Free memory is still 270.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-09 22:13:00,346 INFO L168 Benchmark]: CACSL2BoogieTranslator took 203.72 ms. Allocated memory is still 308.3 MB. Free memory was 251.4 MB in the beginning and 241.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. [2018-04-09 22:13:00,347 INFO L168 Benchmark]: Boogie Preprocessor took 27.89 ms. Allocated memory is still 308.3 MB. Free memory was 241.2 MB in the beginning and 240.2 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. [2018-04-09 22:13:00,347 INFO L168 Benchmark]: RCFGBuilder took 281.43 ms. Allocated memory was 308.3 MB in the beginning and 469.8 MB in the end (delta: 161.5 MB). Free memory was 240.2 MB in the beginning and 439.7 MB in the end (delta: -199.5 MB). Peak memory consumption was 23.6 MB. Max. memory is 5.3 GB. [2018-04-09 22:13:00,348 INFO L168 Benchmark]: TraceAbstraction took 10902.79 ms. Allocated memory was 469.8 MB in the beginning and 626.0 MB in the end (delta: 156.2 MB). Free memory was 439.7 MB in the beginning and 340.6 MB in the end (delta: 99.1 MB). Peak memory consumption was 255.3 MB. Max. memory is 5.3 GB. [2018-04-09 22:13:00,350 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 308.3 MB. Free memory is still 270.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 203.72 ms. Allocated memory is still 308.3 MB. Free memory was 251.4 MB in the beginning and 241.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 27.89 ms. Allocated memory is still 308.3 MB. Free memory was 241.2 MB in the beginning and 240.2 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. * RCFGBuilder took 281.43 ms. Allocated memory was 308.3 MB in the beginning and 469.8 MB in the end (delta: 161.5 MB). Free memory was 240.2 MB in the beginning and 439.7 MB in the end (delta: -199.5 MB). Peak memory consumption was 23.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 10902.79 ms. Allocated memory was 469.8 MB in the beginning and 626.0 MB in the end (delta: 156.2 MB). Free memory was 439.7 MB in the beginning and 340.6 MB in the end (delta: 99.1 MB). Peak memory consumption was 255.3 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 29]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 25]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 29]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 28 locations, 3 error locations. SAFE Result, 10.8s OverallTime, 9 OverallIterations, 80 TraceHistogramMax, 1.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 181 SDtfs, 342 SDslu, 445 SDs, 0 SdLazy, 603 SolverSat, 486 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1113 GetRequests, 830 SyntacticMatches, 7 SemanticMatches, 276 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 3024 ImplicationChecksByTransitivity, 7.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=182occurred 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, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 87 NumberOfFragments, 43 HoareAnnotationTreeSize, 7 FomulaSimplifications, 1644 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 54 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 8.3s InterpolantComputationTime, 555 NumberOfCodeBlocks, 555 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1092 ConstructedInterpolants, 169 QuantifiedInterpolants, 553494 SizeOfPredicates, 11 NumberOfNonLiveVariables, 1134 ConjunctsInSsa, 150 ConjunctsInUnsatCore, 18 InterpolantComputations, 8 PerfectInterpolantSequences, 12800/22760 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memset3_true-valid-memsafety_true-termination.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-09_22-13-00-360.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memset3_true-valid-memsafety_true-termination.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-09_22-13-00-360.csv Received shutdown request...