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 0.1.23-35b68b2 [2018-04-06 21:26:46,515 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-06 21:26:46,518 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-06 21:26:46,533 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-06 21:26:46,533 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-06 21:26:46,534 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-06 21:26:46,535 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-06 21:26:46,537 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-06 21:26:46,539 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-06 21:26:46,540 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-06 21:26:46,541 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-06 21:26:46,541 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-06 21:26:46,542 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-06 21:26:46,543 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-06 21:26:46,544 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-06 21:26:46,546 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-06 21:26:46,548 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-06 21:26:46,550 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-06 21:26:46,552 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-06 21:26:46,553 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-06 21:26:46,555 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-06 21:26:46,555 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-06 21:26:46,556 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-06 21:26:46,557 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-06 21:26:46,557 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-06 21:26:46,559 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-06 21:26:46,559 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-06 21:26:46,560 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-06 21:26:46,561 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-06 21:26:46,561 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-06 21:26:46,561 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-06 21:26:46,562 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 [2018-04-06 21:26:46,586 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-06 21:26:46,586 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-06 21:26:46,587 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-06 21:26:46,587 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-06 21:26:46,588 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-06 21:26:46,588 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-06 21:26:46,588 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-06 21:26:46,588 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-06 21:26:46,588 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-04-06 21:26:46,589 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-06 21:26:46,589 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-06 21:26:46,589 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-06 21:26:46,589 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-06 21:26:46,590 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-06 21:26:46,590 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-06 21:26:46,590 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-06 21:26:46,590 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-06 21:26:46,590 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-06 21:26:46,591 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-06 21:26:46,591 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-06 21:26:46,591 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-06 21:26:46,591 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-06 21:26:46,591 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-06 21:26:46,592 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-06 21:26:46,592 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-06 21:26:46,592 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-06 21:26:46,592 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-06 21:26:46,592 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-06 21:26:46,593 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-06 21:26:46,593 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-06 21:26:46,593 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-06 21:26:46,593 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-06 21:26:46,593 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-06 21:26:46,593 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-06 21:26:46,594 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-06 21:26:46,595 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-06 21:26:46,595 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-06 21:26:46,595 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-06 21:26:46,630 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-06 21:26:46,643 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-06 21:26:46,647 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-06 21:26:46,649 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-06 21:26:46,650 INFO L276 PluginConnector]: CDTParser initialized [2018-04-06 21:26:46,651 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memset3_true-valid-memsafety_true-termination.c [2018-04-06 21:26:46,998 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG356def916 [2018-04-06 21:26:47,113 INFO L287 CDTParser]: IsIndexed: true [2018-04-06 21:26:47,114 INFO L288 CDTParser]: Found 1 translation units. [2018-04-06 21:26:47,114 INFO L168 CDTParser]: Scanning memset3_true-valid-memsafety_true-termination.c [2018-04-06 21:26:47,116 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-06 21:26:47,116 INFO L215 ultiparseSymbolTable]: [2018-04-06 21:26:47,116 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-06 21:26:47,116 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in memset3_true-valid-memsafety_true-termination.c [2018-04-06 21:26:47,117 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-06 21:26:47,117 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemset__true_valid_memsafety_true_termination_c____kernel_size_t in memset3_true-valid-memsafety_true-termination.c [2018-04-06 21:26:47,117 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemset__true_valid_memsafety_true_termination_c__size_t in memset3_true-valid-memsafety_true-termination.c [2018-04-06 21:26:47,117 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemset__true_valid_memsafety_true_termination_c____u32 in memset3_true-valid-memsafety_true-termination.c [2018-04-06 21:26:47,135 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG356def916 [2018-04-06 21:26:47,140 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-06 21:26:47,142 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-06 21:26:47,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-06 21:26:47,143 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-06 21:26:47,148 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-06 21:26:47,148 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 09:26:47" (1/1) ... [2018-04-06 21:26:47,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67da806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:26:47, skipping insertion in model container [2018-04-06 21:26:47,151 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 09:26:47" (1/1) ... [2018-04-06 21:26:47,164 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-06 21:26:47,176 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-06 21:26:47,296 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-06 21:26:47,320 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-06 21:26:47,324 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 7 non ball SCCs. Number of states in SCCs 7. [2018-04-06 21:26:47,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:26:47 WrapperNode [2018-04-06 21:26:47,331 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-06 21:26:47,332 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-06 21:26:47,332 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-06 21:26:47,332 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-06 21:26:47,341 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:26:47" (1/1) ... [2018-04-06 21:26:47,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:26:47" (1/1) ... [2018-04-06 21:26:47,348 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:26:47" (1/1) ... [2018-04-06 21:26:47,348 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:26:47" (1/1) ... [2018-04-06 21:26:47,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:26:47" (1/1) ... [2018-04-06 21:26:47,355 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:26:47" (1/1) ... [2018-04-06 21:26:47,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:26:47" (1/1) ... [2018-04-06 21:26:47,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-06 21:26:47,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-06 21:26:47,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-06 21:26:47,358 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-06 21:26:47,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:26:47" (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 [2018-04-06 21:26:47,417 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-06 21:26:47,417 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-06 21:26:47,417 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-06 21:26:47,417 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-04-06 21:26:47,417 INFO L128 BoogieDeclarations]: Found specification of procedure memset [2018-04-06 21:26:47,418 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-06 21:26:47,418 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-06 21:26:47,418 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-04-06 21:26:47,418 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-06 21:26:47,418 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-06 21:26:47,419 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-06 21:26:47,564 WARN L446 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-04-06 21:26:47,639 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-06 21:26:47,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 09:26:47 BoogieIcfgContainer [2018-04-06 21:26:47,639 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-06 21:26:47,640 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-06 21:26:47,641 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-06 21:26:47,644 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-06 21:26:47,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.04 09:26:47" (1/3) ... [2018-04-06 21:26:47,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1509b335 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 09:26:47, skipping insertion in model container [2018-04-06 21:26:47,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:26:47" (2/3) ... [2018-04-06 21:26:47,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1509b335 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 09:26:47, skipping insertion in model container [2018-04-06 21:26:47,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 09:26:47" (3/3) ... [2018-04-06 21:26:47,647 INFO L107 eAbstractionObserver]: Analyzing ICFG memset3_true-valid-memsafety_true-termination.c [2018-04-06 21:26:47,657 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-06 21:26:47,664 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-04-06 21:26:47,707 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-06 21:26:47,707 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-06 21:26:47,708 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-06 21:26:47,708 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-06 21:26:47,708 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-06 21:26:47,708 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-06 21:26:47,708 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-06 21:26:47,708 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-06 21:26:47,709 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-06 21:26:47,710 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-06 21:26:47,727 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-04-06 21:26:47,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-04-06 21:26:47,731 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 21:26:47,732 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-06 21:26:47,732 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-06 21:26:47,737 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 [2018-04-06 21:26:47,748 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 21:26:47,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 21:26:47,783 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 21:26:47,826 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 [2018-04-06 21:26:47,828 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-06 21:26:47,835 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 21:26:47,835 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-06 21:26:47,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 21:26:47,860 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 21:26:47,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 21:26:47,895 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-06 21:26:47,896 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-06 21:26:47,897 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-06 21:26:47,907 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-06 21:26:47,907 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-06 21:26:47,909 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 4 states. [2018-04-06 21:26:47,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 21:26:47,979 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-04-06 21:26:47,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-06 21:26:47,980 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-04-06 21:26:47,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 21:26:47,993 INFO L225 Difference]: With dead ends: 28 [2018-04-06 21:26:47,994 INFO L226 Difference]: Without dead ends: 24 [2018-04-06 21:26:47,997 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 [2018-04-06 21:26:48,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-04-06 21:26:48,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-04-06 21:26:48,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-04-06 21:26:48,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-04-06 21:26:48,033 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 10 [2018-04-06 21:26:48,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 21:26:48,034 INFO L459 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-04-06 21:26:48,034 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-06 21:26:48,034 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-04-06 21:26:48,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-04-06 21:26:48,035 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 21:26:48,035 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-06 21:26:48,035 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-06 21:26:48,035 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 [2018-04-06 21:26:48,046 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 21:26:48,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 21:26:48,063 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 21:26:48,080 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 [2018-04-06 21:26:48,081 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-06 21:26:48,090 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 21:26:48,090 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-06 21:26:48,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 21:26:48,118 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 21:26:48,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 21:26:48,206 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-06 21:26:48,206 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2018-04-06 21:26:48,207 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-06 21:26:48,207 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-06 21:26:48,208 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-04-06 21:26:48,208 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 6 states. [2018-04-06 21:26:48,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 21:26:48,248 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2018-04-06 21:26:48,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-06 21:26:48,249 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2018-04-06 21:26:48,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 21:26:48,250 INFO L225 Difference]: With dead ends: 24 [2018-04-06 21:26:48,250 INFO L226 Difference]: Without dead ends: 23 [2018-04-06 21:26:48,251 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 [2018-04-06 21:26:48,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-04-06 21:26:48,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-04-06 21:26:48,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-04-06 21:26:48,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2018-04-06 21:26:48,255 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 10 [2018-04-06 21:26:48,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 21:26:48,256 INFO L459 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2018-04-06 21:26:48,256 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-06 21:26:48,256 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2018-04-06 21:26:48,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-04-06 21:26:48,257 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 21:26:48,257 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] [2018-04-06 21:26:48,257 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-06 21:26:48,258 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 [2018-04-06 21:26:48,264 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 21:26:48,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 21:26:48,283 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 21:26:48,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 21:26:48,369 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 21:26:48,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 21:26:48,450 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-06 21:26:48,450 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2018-04-06 21:26:48,451 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-06 21:26:48,451 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-06 21:26:48,452 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-04-06 21:26:48,452 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 6 states. [2018-04-06 21:26:48,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 21:26:48,504 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2018-04-06 21:26:48,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-06 21:26:48,504 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-04-06 21:26:48,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 21:26:48,505 INFO L225 Difference]: With dead ends: 36 [2018-04-06 21:26:48,506 INFO L226 Difference]: Without dead ends: 26 [2018-04-06 21:26:48,506 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 [2018-04-06 21:26:48,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-04-06 21:26:48,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-04-06 21:26:48,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-04-06 21:26:48,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2018-04-06 21:26:48,511 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 21 [2018-04-06 21:26:48,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 21:26:48,512 INFO L459 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2018-04-06 21:26:48,512 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-06 21:26:48,512 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2018-04-06 21:26:48,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-06 21:26:48,513 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 21:26:48,513 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] [2018-04-06 21:26:48,514 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-06 21:26:48,514 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 [2018-04-06 21:26:48,527 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 21:26:48,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 21:26:48,551 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 21:26:48,582 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 21:26:48,582 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 21:26:48,716 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 21:26:48,750 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-06 21:26:48,750 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2018-04-06 21:26:48,751 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-06 21:26:48,751 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-06 21:26:48,751 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-04-06 21:26:48,752 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 10 states. [2018-04-06 21:26:48,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 21:26:48,804 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2018-04-06 21:26:48,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-06 21:26:48,804 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2018-04-06 21:26:48,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 21:26:48,805 INFO L225 Difference]: With dead ends: 44 [2018-04-06 21:26:48,805 INFO L226 Difference]: Without dead ends: 34 [2018-04-06 21:26:48,806 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2018-04-06 21:26:48,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-04-06 21:26:48,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-04-06 21:26:48,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-04-06 21:26:48,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2018-04-06 21:26:48,810 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 25 [2018-04-06 21:26:48,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 21:26:48,810 INFO L459 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2018-04-06 21:26:48,811 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-06 21:26:48,811 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2018-04-06 21:26:48,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-04-06 21:26:48,811 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 21:26:48,812 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] [2018-04-06 21:26:48,812 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-06 21:26:48,812 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 [2018-04-06 21:26:48,823 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 21:26:48,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 21:26:48,842 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 21:26:48,928 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 21:26:48,929 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 21:26:49,228 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 21:26:49,263 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-06 21:26:49,264 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2018-04-06 21:26:49,264 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-06 21:26:49,265 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-06 21:26:49,265 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=167, Unknown=0, NotChecked=0, Total=306 [2018-04-06 21:26:49,265 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 18 states. [2018-04-06 21:26:49,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 21:26:49,412 INFO L93 Difference]: Finished difference Result 60 states and 67 transitions. [2018-04-06 21:26:49,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-06 21:26:49,413 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 33 [2018-04-06 21:26:49,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 21:26:49,415 INFO L225 Difference]: With dead ends: 60 [2018-04-06 21:26:49,415 INFO L226 Difference]: Without dead ends: 50 [2018-04-06 21:26:49,416 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 [2018-04-06 21:26:49,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-04-06 21:26:49,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-04-06 21:26:49,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-04-06 21:26:49,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2018-04-06 21:26:49,425 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 33 [2018-04-06 21:26:49,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 21:26:49,425 INFO L459 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2018-04-06 21:26:49,426 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-06 21:26:49,426 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2018-04-06 21:26:49,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-04-06 21:26:49,427 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 21:26:49,427 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] [2018-04-06 21:26:49,428 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-06 21:26:49,428 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 [2018-04-06 21:26:49,444 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 21:26:49,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 21:26:49,472 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 21:26:49,667 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 21:26:49,668 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 21:26:50,133 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 21:26:50,154 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-06 21:26:50,154 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2018-04-06 21:26:50,155 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-04-06 21:26:50,155 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-04-06 21:26:50,156 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=531, Invalid=591, Unknown=0, NotChecked=0, Total=1122 [2018-04-06 21:26:50,156 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand 34 states. [2018-04-06 21:26:50,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 21:26:50,373 INFO L93 Difference]: Finished difference Result 92 states and 107 transitions. [2018-04-06 21:26:50,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-04-06 21:26:50,374 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 49 [2018-04-06 21:26:50,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 21:26:50,375 INFO L225 Difference]: With dead ends: 92 [2018-04-06 21:26:50,375 INFO L226 Difference]: Without dead ends: 82 [2018-04-06 21:26:50,376 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 64 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=551, Invalid=639, Unknown=0, NotChecked=0, Total=1190 [2018-04-06 21:26:50,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-04-06 21:26:50,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2018-04-06 21:26:50,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-04-06 21:26:50,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 82 transitions. [2018-04-06 21:26:50,384 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 82 transitions. Word has length 49 [2018-04-06 21:26:50,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 21:26:50,385 INFO L459 AbstractCegarLoop]: Abstraction has 82 states and 82 transitions. [2018-04-06 21:26:50,385 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-04-06 21:26:50,385 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 82 transitions. [2018-04-06 21:26:50,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-04-06 21:26:50,386 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 21:26:50,387 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] [2018-04-06 21:26:50,387 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-06 21:26:50,387 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 [2018-04-06 21:26:50,393 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 21:26:50,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 21:26:50,423 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 21:26:50,884 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 0 proven. 900 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 21:26:50,884 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 21:26:52,364 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 0 proven. 900 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 21:26:52,385 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-06 21:26:52,385 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 66 [2018-04-06 21:26:52,386 INFO L442 AbstractCegarLoop]: Interpolant automaton has 66 states [2018-04-06 21:26:52,387 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2018-04-06 21:26:52,388 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2083, Invalid=2207, Unknown=0, NotChecked=0, Total=4290 [2018-04-06 21:26:52,388 INFO L87 Difference]: Start difference. First operand 82 states and 82 transitions. Second operand 66 states. [2018-04-06 21:26:52,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 21:26:52,787 INFO L93 Difference]: Finished difference Result 156 states and 187 transitions. [2018-04-06 21:26:52,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2018-04-06 21:26:52,787 INFO L78 Accepts]: Start accepts. Automaton has 66 states. Word has length 81 [2018-04-06 21:26:52,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 21:26:52,790 INFO L225 Difference]: With dead ends: 156 [2018-04-06 21:26:52,790 INFO L226 Difference]: Without dead ends: 146 [2018-04-06 21:26:52,792 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 [2018-04-06 21:26:52,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-04-06 21:26:52,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2018-04-06 21:26:52,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2018-04-06 21:26:52,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 146 transitions. [2018-04-06 21:26:52,815 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 146 transitions. Word has length 81 [2018-04-06 21:26:52,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 21:26:52,815 INFO L459 AbstractCegarLoop]: Abstraction has 146 states and 146 transitions. [2018-04-06 21:26:52,815 INFO L460 AbstractCegarLoop]: Interpolant automaton has 66 states. [2018-04-06 21:26:52,816 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 146 transitions. [2018-04-06 21:26:52,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-04-06 21:26:52,818 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 21:26:52,818 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] [2018-04-06 21:26:52,819 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-06 21:26:52,819 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 [2018-04-06 21:26:52,825 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 21:26:52,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 21:26:52,866 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 21:26:54,166 INFO L134 CoverageAnalysis]: Checked inductivity of 3844 backedges. 0 proven. 3844 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 21:26:54,166 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 21:26:54,373 WARN L148 SmtUtils]: Spent 202ms on a formula simplification that was a NOOP. DAG size: 194 [2018-04-06 21:26:54,567 WARN L148 SmtUtils]: Spent 190ms on a formula simplification that was a NOOP. DAG size: 194 [2018-04-06 21:26:57,725 INFO L134 CoverageAnalysis]: Checked inductivity of 3844 backedges. 0 proven. 3844 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 21:26:57,747 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-06 21:26:57,747 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66] total 130 [2018-04-06 21:26:57,747 INFO L442 AbstractCegarLoop]: Interpolant automaton has 130 states [2018-04-06 21:26:57,748 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2018-04-06 21:26:57,751 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7224, Invalid=9546, Unknown=0, NotChecked=0, Total=16770 [2018-04-06 21:26:57,751 INFO L87 Difference]: Start difference. First operand 146 states and 146 transitions. Second operand 130 states. [2018-04-06 21:26:58,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 21:26:58,111 INFO L93 Difference]: Finished difference Result 192 states and 209 transitions. [2018-04-06 21:26:58,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2018-04-06 21:26:58,112 INFO L78 Accepts]: Start accepts. Automaton has 130 states. Word has length 145 [2018-04-06 21:26:58,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 21:26:58,113 INFO L225 Difference]: With dead ends: 192 [2018-04-06 21:26:58,114 INFO L226 Difference]: Without dead ends: 182 [2018-04-06 21:26:58,117 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 [2018-04-06 21:26:58,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-04-06 21:26:58,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2018-04-06 21:26:58,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-04-06 21:26:58,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 182 transitions. [2018-04-06 21:26:58,133 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 182 transitions. Word has length 145 [2018-04-06 21:26:58,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 21:26:58,134 INFO L459 AbstractCegarLoop]: Abstraction has 182 states and 182 transitions. [2018-04-06 21:26:58,134 INFO L460 AbstractCegarLoop]: Interpolant automaton has 130 states. [2018-04-06 21:26:58,134 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 182 transitions. [2018-04-06 21:26:58,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-04-06 21:26:58,138 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 21:26:58,138 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] [2018-04-06 21:26:58,138 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-06 21:26:58,139 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 [2018-04-06 21:26:58,147 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 21:26:58,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 21:26:58,186 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 21:26:58,211 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:26:58,212 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 [2018-04-06 21:26:58,212 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-06 21:26:58,214 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. [2018-04-06 21:26:58,214 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-04-06 21:26:58,315 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 [2018-04-06 21:26:58,402 INFO L134 CoverageAnalysis]: Checked inductivity of 6400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6400 trivial. 0 not checked. [2018-04-06 21:26:58,402 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 21:26:58,451 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 [2018-04-06 21:26:58,475 INFO L134 CoverageAnalysis]: Checked inductivity of 6400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6400 trivial. 0 not checked. [2018-04-06 21:26:58,512 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-06 21:26:58,512 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 7 [2018-04-06 21:26:58,513 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-06 21:26:58,513 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-06 21:26:58,513 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=21, Unknown=2, NotChecked=18, Total=56 [2018-04-06 21:26:58,513 INFO L87 Difference]: Start difference. First operand 182 states and 182 transitions. Second operand 8 states. [2018-04-06 21:26:58,522 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 [2018-04-06 21:26:58,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 21:26:58,672 INFO L93 Difference]: Finished difference Result 182 states and 182 transitions. [2018-04-06 21:26:58,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-06 21:26:58,673 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 181 [2018-04-06 21:26:58,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 21:26:58,674 INFO L225 Difference]: With dead ends: 182 [2018-04-06 21:26:58,674 INFO L226 Difference]: Without dead ends: 0 [2018-04-06 21:26:58,675 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 [2018-04-06 21:26:58,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-04-06 21:26:58,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-04-06 21:26:58,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-04-06 21:26:58,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-04-06 21:26:58,676 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 181 [2018-04-06 21:26:58,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 21:26:58,677 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-04-06 21:26:58,677 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-06 21:26:58,677 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-04-06 21:26:58,677 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-04-06 21:26:58,681 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-04-06 21:26:58,856 WARN L151 SmtUtils]: Spent 135ms on a formula simplification. DAG size of input: 311 DAG size of output 9 [2018-04-06 21:26:58,921 INFO L416 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-04-06 21:26:58,921 INFO L416 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-04-06 21:26:58,921 INFO L412 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-04-06 21:26:58,922 INFO L416 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-04-06 21:26:58,922 INFO L419 ceAbstractionStarter]: At program point #Ultimate.C_memsetENTRY(line -1) the Hoare annotation is: true [2018-04-06 21:26:58,922 INFO L416 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-04-06 21:26:58,922 INFO L416 ceAbstractionStarter]: For program point L-1'(line -1) no Hoare annotation was computed. [2018-04-06 21:26:58,922 INFO L419 ceAbstractionStarter]: At program point L-1''(line -1) the Hoare annotation is: true [2018-04-06 21:26:58,922 INFO L416 ceAbstractionStarter]: For program point #Ultimate.C_memsetFINAL(line -1) no Hoare annotation was computed. [2018-04-06 21:26:58,922 INFO L416 ceAbstractionStarter]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2018-04-06 21:26:58,922 INFO L416 ceAbstractionStarter]: For program point #Ultimate.C_memsetEXIT(line -1) no Hoare annotation was computed. [2018-04-06 21:26:58,922 INFO L419 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-04-06 21:26:58,922 INFO L419 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-04-06 21:26:58,922 INFO L416 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-04-06 21:26:58,922 INFO L416 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-04-06 21:26:58,923 INFO L416 ceAbstractionStarter]: For program point mainErr1RequiresViolation(line 29) no Hoare annotation was computed. [2018-04-06 21:26:58,923 INFO L416 ceAbstractionStarter]: For program point L30(line 30) no Hoare annotation was computed. [2018-04-06 21:26:58,923 INFO L416 ceAbstractionStarter]: For program point mainFINAL(lines 25 31) no Hoare annotation was computed. [2018-04-06 21:26:58,923 INFO L416 ceAbstractionStarter]: For program point mainErr2EnsuresViolationMEMORY_LEAK(lines 25 31) no Hoare annotation was computed. [2018-04-06 21:26:58,923 INFO L416 ceAbstractionStarter]: For program point mainErr0RequiresViolation(line 29) no Hoare annotation was computed. [2018-04-06 21:26:58,923 INFO L416 ceAbstractionStarter]: For program point mainEXIT(lines 25 31) no Hoare annotation was computed. [2018-04-06 21:26:58,923 INFO L412 ceAbstractionStarter]: At program point mainENTRY(lines 25 31) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-04-06 21:26:58,923 INFO L416 ceAbstractionStarter]: For program point L26(line 26) no Hoare annotation was computed. [2018-04-06 21:26:58,924 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|)) [2018-04-06 21:26:58,924 INFO L416 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-04-06 21:26:58,924 INFO L416 ceAbstractionStarter]: For program point L26'(line 26) no Hoare annotation was computed. [2018-04-06 21:26:58,924 INFO L416 ceAbstractionStarter]: For program point L26''(line 26) no Hoare annotation was computed. [2018-04-06 21:26:58,924 INFO L416 ceAbstractionStarter]: For program point L29'(line 29) no Hoare annotation was computed. [2018-04-06 21:26:58,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.04 09:26:58 BoogieIcfgContainer [2018-04-06 21:26:58,931 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-06 21:26:58,932 INFO L168 Benchmark]: Toolchain (without parser) took 11791.57 ms. Allocated memory was 300.4 MB in the beginning and 631.2 MB in the end (delta: 330.8 MB). Free memory was 243.0 MB in the beginning and 570.8 MB in the end (delta: -327.8 MB). Peak memory consumption was 3.0 MB. Max. memory is 5.3 GB. [2018-04-06 21:26:58,934 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 300.4 MB. Free memory is still 262.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-06 21:26:58,934 INFO L168 Benchmark]: CACSL2BoogieTranslator took 188.84 ms. Allocated memory is still 300.4 MB. Free memory was 243.0 MB in the beginning and 232.9 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. [2018-04-06 21:26:58,934 INFO L168 Benchmark]: Boogie Preprocessor took 25.60 ms. Allocated memory is still 300.4 MB. Free memory was 232.9 MB in the beginning and 231.9 MB in the end (delta: 996.4 kB). Peak memory consumption was 996.4 kB. Max. memory is 5.3 GB. [2018-04-06 21:26:58,935 INFO L168 Benchmark]: RCFGBuilder took 281.75 ms. Allocated memory was 300.4 MB in the beginning and 457.2 MB in the end (delta: 156.8 MB). Free memory was 231.9 MB in the beginning and 427.9 MB in the end (delta: -196.0 MB). Peak memory consumption was 23.6 MB. Max. memory is 5.3 GB. [2018-04-06 21:26:58,935 INFO L168 Benchmark]: TraceAbstraction took 11290.51 ms. Allocated memory was 457.2 MB in the beginning and 631.2 MB in the end (delta: 174.1 MB). Free memory was 426.5 MB in the beginning and 570.8 MB in the end (delta: -144.3 MB). Peak memory consumption was 29.8 MB. Max. memory is 5.3 GB. [2018-04-06 21:26:58,938 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 300.4 MB. Free memory is still 262.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 188.84 ms. Allocated memory is still 300.4 MB. Free memory was 243.0 MB in the beginning and 232.9 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 25.60 ms. Allocated memory is still 300.4 MB. Free memory was 232.9 MB in the beginning and 231.9 MB in the end (delta: 996.4 kB). Peak memory consumption was 996.4 kB. Max. memory is 5.3 GB. * RCFGBuilder took 281.75 ms. Allocated memory was 300.4 MB in the beginning and 457.2 MB in the end (delta: 156.8 MB). Free memory was 231.9 MB in the beginning and 427.9 MB in the end (delta: -196.0 MB). Peak memory consumption was 23.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 11290.51 ms. Allocated memory was 457.2 MB in the beginning and 631.2 MB in the end (delta: 174.1 MB). Free memory was 426.5 MB in the beginning and 570.8 MB in the end (delta: -144.3 MB). Peak memory consumption was 29.8 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, 11.2s OverallTime, 9 OverallIterations, 80 TraceHistogramMax, 1.5s 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, 7.4s 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, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 8.6s 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-0-2018-04-06_21-26-58-948.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-0-2018-04-06_21-26-58-948.csv Received shutdown request...