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/memsetNonZero_true-valid-memsafety_true-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-453dfda-m [2018-04-09 22:13:23,719 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-09 22:13:23,720 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-09 22:13:23,734 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-09 22:13:23,735 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-09 22:13:23,736 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-09 22:13:23,737 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-09 22:13:23,739 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-09 22:13:23,741 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-09 22:13:23,742 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-09 22:13:23,743 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-09 22:13:23,744 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-09 22:13:23,745 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-09 22:13:23,746 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-09 22:13:23,747 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-09 22:13:23,749 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-09 22:13:23,752 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-09 22:13:23,754 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-09 22:13:23,755 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-09 22:13:23,756 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-09 22:13:23,759 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-09 22:13:23,759 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-09 22:13:23,759 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-09 22:13:23,760 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-09 22:13:23,761 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-09 22:13:23,763 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-09 22:13:23,763 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-09 22:13:23,764 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-09 22:13:23,764 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-09 22:13:23,765 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-09 22:13:23,765 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-09 22:13:23,766 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 22:13:23,791 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-09 22:13:23,791 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-09 22:13:23,792 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-09 22:13:23,792 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-09 22:13:23,793 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-09 22:13:23,793 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-09 22:13:23,793 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-09 22:13:23,793 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-09 22:13:23,793 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-04-09 22:13:23,794 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-09 22:13:23,794 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-09 22:13:23,794 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-09 22:13:23,795 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-09 22:13:23,795 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-09 22:13:23,795 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-09 22:13:23,795 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-09 22:13:23,795 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-09 22:13:23,796 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-09 22:13:23,796 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-09 22:13:23,796 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-09 22:13:23,796 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-09 22:13:23,796 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-09 22:13:23,797 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-09 22:13:23,797 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-09 22:13:23,797 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-09 22:13:23,797 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-09 22:13:23,798 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-09 22:13:23,798 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-09 22:13:23,798 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-09 22:13:23,798 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-09 22:13:23,798 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-09 22:13:23,799 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-09 22:13:23,799 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 22:13:23,799 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-09 22:13:23,800 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-09 22:13:23,800 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-09 22:13:23,800 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-09 22:13:23,800 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-09 22:13:23,837 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-09 22:13:23,851 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-09 22:13:23,855 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-09 22:13:23,857 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-09 22:13:23,857 INFO L276 PluginConnector]: CDTParser initialized [2018-04-09 22:13:23,858 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memsetNonZero_true-valid-memsafety_true-termination.c [2018-04-09 22:13:24,219 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG24663f96f [2018-04-09 22:13:24,338 INFO L287 CDTParser]: IsIndexed: true [2018-04-09 22:13:24,338 INFO L288 CDTParser]: Found 1 translation units. [2018-04-09 22:13:24,339 INFO L168 CDTParser]: Scanning memsetNonZero_true-valid-memsafety_true-termination.c [2018-04-09 22:13:24,340 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-09 22:13:24,340 INFO L215 ultiparseSymbolTable]: [2018-04-09 22:13:24,340 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-09 22:13:24,340 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in memsetNonZero_true-valid-memsafety_true-termination.c [2018-04-09 22:13:24,340 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-09 22:13:24,341 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemsetNonZero_true_valid_memsafety_true_termination_c__size_t in memsetNonZero_true-valid-memsafety_true-termination.c [2018-04-09 22:13:24,341 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemsetNonZero_true_valid_memsafety_true_termination_c____kernel_size_t in memsetNonZero_true-valid-memsafety_true-termination.c [2018-04-09 22:13:24,341 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemsetNonZero_true_valid_memsafety_true_termination_c____u32 in memsetNonZero_true-valid-memsafety_true-termination.c [2018-04-09 22:13:24,357 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG24663f96f [2018-04-09 22:13:24,362 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-09 22:13:24,363 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-09 22:13:24,364 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-09 22:13:24,364 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-09 22:13:24,369 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-09 22:13:24,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.04 10:13:24" (1/1) ... [2018-04-09 22:13:24,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@338a89ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:13:24, skipping insertion in model container [2018-04-09 22:13:24,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.04 10:13:24" (1/1) ... [2018-04-09 22:13:24,387 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-09 22:13:24,400 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-09 22:13:24,523 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-09 22:13:24,547 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-09 22:13:24,551 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 7 non ball SCCs. Number of states in SCCs 7. [2018-04-09 22:13:24,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:13:24 WrapperNode [2018-04-09 22:13:24,560 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-09 22:13:24,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-09 22:13:24,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-09 22:13:24,561 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-09 22:13:24,573 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:13:24" (1/1) ... [2018-04-09 22:13:24,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:13:24" (1/1) ... [2018-04-09 22:13:24,580 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:13:24" (1/1) ... [2018-04-09 22:13:24,581 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:13:24" (1/1) ... [2018-04-09 22:13:24,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:13:24" (1/1) ... [2018-04-09 22:13:24,588 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:13:24" (1/1) ... [2018-04-09 22:13:24,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:13:24" (1/1) ... [2018-04-09 22:13:24,591 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-09 22:13:24,592 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-09 22:13:24,592 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-09 22:13:24,592 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-09 22:13:24,593 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:13:24" (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 22:13:24,652 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-09 22:13:24,652 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-09 22:13:24,652 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-09 22:13:24,652 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-04-09 22:13:24,653 INFO L128 BoogieDeclarations]: Found specification of procedure memset [2018-04-09 22:13:24,653 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-09 22:13:24,653 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-09 22:13:24,653 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-04-09 22:13:24,653 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-09 22:13:24,653 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-09 22:13:24,654 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-09 22:13:24,796 WARN L446 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-04-09 22:13:24,847 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-09 22:13:24,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.04 10:13:24 BoogieIcfgContainer [2018-04-09 22:13:24,848 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-09 22:13:24,849 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-09 22:13:24,849 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-09 22:13:24,851 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-09 22:13:24,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.04 10:13:24" (1/3) ... [2018-04-09 22:13:24,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f7ea722 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.04 10:13:24, skipping insertion in model container [2018-04-09 22:13:24,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:13:24" (2/3) ... [2018-04-09 22:13:24,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f7ea722 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.04 10:13:24, skipping insertion in model container [2018-04-09 22:13:24,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.04 10:13:24" (3/3) ... [2018-04-09 22:13:24,855 INFO L107 eAbstractionObserver]: Analyzing ICFG memsetNonZero_true-valid-memsafety_true-termination.c [2018-04-09 22:13:24,865 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-09 22:13:24,872 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-04-09 22:13:24,913 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-09 22:13:24,914 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-09 22:13:24,914 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-09 22:13:24,914 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-09 22:13:24,915 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-09 22:13:24,915 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-09 22:13:24,915 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-09 22:13:24,915 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-09 22:13:24,915 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-09 22:13:24,916 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-09 22:13:24,929 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2018-04-09 22:13:24,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-04-09 22:13:24,934 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:13:24,935 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 22:13:24,935 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-09 22:13:24,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1964876918, 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 22:13:24,953 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:13:24,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:13:24,987 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:13:25,025 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 22:13:25,026 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 22:13:25,033 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:13:25,034 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-09 22:13:25,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:13:25,041 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:13:25,051 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 22:13:25,074 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 22:13:25,074 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2018-04-09 22:13:25,076 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-09 22:13:25,086 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-09 22:13:25,086 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-09 22:13:25,088 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 3 states. [2018-04-09 22:13:25,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:13:25,129 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2018-04-09 22:13:25,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-09 22:13:25,130 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-04-09 22:13:25,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:13:25,142 INFO L225 Difference]: With dead ends: 26 [2018-04-09 22:13:25,142 INFO L226 Difference]: Without dead ends: 22 [2018-04-09 22:13:25,145 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-09 22:13:25,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-04-09 22:13:25,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-04-09 22:13:25,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-04-09 22:13:25,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-04-09 22:13:25,173 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 8 [2018-04-09 22:13:25,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:13:25,173 INFO L459 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-04-09 22:13:25,173 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-09 22:13:25,174 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-04-09 22:13:25,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-04-09 22:13:25,174 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:13:25,174 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 22:13:25,175 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-09 22:13:25,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1964876917, 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 22:13:25,191 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:13:25,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:13:25,208 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:13:25,221 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 22:13:25,221 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 22:13:25,228 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:13:25,228 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-09 22:13:25,236 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 22:13:25,236 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:13:25,255 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 22:13:25,275 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 22:13:25,276 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2018-04-09 22:13:25,277 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-09 22:13:25,277 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-09 22:13:25,277 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-04-09 22:13:25,278 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 4 states. [2018-04-09 22:13:25,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:13:25,294 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-04-09 22:13:25,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-09 22:13:25,295 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-04-09 22:13:25,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:13:25,296 INFO L225 Difference]: With dead ends: 22 [2018-04-09 22:13:25,296 INFO L226 Difference]: Without dead ends: 21 [2018-04-09 22:13:25,297 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-04-09 22:13:25,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-04-09 22:13:25,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-04-09 22:13:25,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-04-09 22:13:25,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2018-04-09 22:13:25,302 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 8 [2018-04-09 22:13:25,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:13:25,302 INFO L459 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2018-04-09 22:13:25,302 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-09 22:13:25,302 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2018-04-09 22:13:25,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-09 22:13:25,303 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:13:25,304 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 22:13:25,304 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-09 22:13:25,304 INFO L82 PathProgramCache]: Analyzing trace with hash 385100327, 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 22:13:25,311 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:13:25,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:13:25,333 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:13:25,361 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 22:13:25,361 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:13:25,414 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 22:13:25,447 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 22:13:25,448 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2018-04-09 22:13:25,449 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-09 22:13:25,450 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-09 22:13:25,450 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-04-09 22:13:25,450 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 6 states. [2018-04-09 22:13:25,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:13:25,522 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2018-04-09 22:13:25,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-09 22:13:25,522 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-04-09 22:13:25,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:13:25,523 INFO L225 Difference]: With dead ends: 34 [2018-04-09 22:13:25,523 INFO L226 Difference]: Without dead ends: 24 [2018-04-09 22:13:25,524 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 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 22:13:25,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-04-09 22:13:25,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-04-09 22:13:25,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-04-09 22:13:25,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-04-09 22:13:25,529 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 19 [2018-04-09 22:13:25,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:13:25,529 INFO L459 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-04-09 22:13:25,529 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-09 22:13:25,530 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-04-09 22:13:25,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-04-09 22:13:25,530 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:13:25,531 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 22:13:25,531 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-09 22:13:25,531 INFO L82 PathProgramCache]: Analyzing trace with hash -1790419159, 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 22:13:25,538 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:13:25,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:13:25,557 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:13:25,579 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 22:13:25,579 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:13:25,709 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 22:13:25,730 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 22:13:25,731 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2018-04-09 22:13:25,731 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-09 22:13:25,731 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-09 22:13:25,731 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-04-09 22:13:25,732 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 10 states. [2018-04-09 22:13:25,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:13:25,771 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2018-04-09 22:13:25,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-09 22:13:25,772 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 23 [2018-04-09 22:13:25,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:13:25,773 INFO L225 Difference]: With dead ends: 42 [2018-04-09 22:13:25,773 INFO L226 Difference]: Without dead ends: 32 [2018-04-09 22:13:25,774 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 36 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 22:13:25,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-04-09 22:13:25,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-04-09 22:13:25,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-04-09 22:13:25,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2018-04-09 22:13:25,780 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 23 [2018-04-09 22:13:25,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:13:25,781 INFO L459 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2018-04-09 22:13:25,781 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-09 22:13:25,781 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2018-04-09 22:13:25,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-04-09 22:13:25,782 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:13:25,782 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] [2018-04-09 22:13:25,783 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-09 22:13:25,783 INFO L82 PathProgramCache]: Analyzing trace with hash -227650003, 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 22:13:25,791 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:13:25,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:13:25,809 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:13:25,905 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 22:13:25,905 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:13:26,166 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 22:13:26,194 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 22:13:26,195 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2018-04-09 22:13:26,195 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-09 22:13:26,195 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-09 22:13:26,195 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=167, Unknown=0, NotChecked=0, Total=306 [2018-04-09 22:13:26,196 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 18 states. [2018-04-09 22:13:26,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:13:26,294 INFO L93 Difference]: Finished difference Result 58 states and 65 transitions. [2018-04-09 22:13:26,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-09 22:13:26,295 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 31 [2018-04-09 22:13:26,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:13:26,296 INFO L225 Difference]: With dead ends: 58 [2018-04-09 22:13:26,296 INFO L226 Difference]: Without dead ends: 48 [2018-04-09 22:13:26,297 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=151, Invalid=191, Unknown=0, NotChecked=0, Total=342 [2018-04-09 22:13:26,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-04-09 22:13:26,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-04-09 22:13:26,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-04-09 22:13:26,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2018-04-09 22:13:26,303 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 31 [2018-04-09 22:13:26,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:13:26,303 INFO L459 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2018-04-09 22:13:26,303 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-09 22:13:26,303 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2018-04-09 22:13:26,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-04-09 22:13:26,304 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:13:26,304 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] [2018-04-09 22:13:26,305 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-09 22:13:26,305 INFO L82 PathProgramCache]: Analyzing trace with hash 1304328245, 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 22:13:26,311 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:13:26,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:13:26,331 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:13:26,480 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 22:13:26,480 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:13:26,879 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 22:13:26,911 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 22:13:26,912 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2018-04-09 22:13:26,912 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-04-09 22:13:26,913 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-04-09 22:13:26,913 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=531, Invalid=591, Unknown=0, NotChecked=0, Total=1122 [2018-04-09 22:13:26,913 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand 34 states. [2018-04-09 22:13:27,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:13:27,167 INFO L93 Difference]: Finished difference Result 90 states and 105 transitions. [2018-04-09 22:13:27,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-04-09 22:13:27,167 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 47 [2018-04-09 22:13:27,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:13:27,169 INFO L225 Difference]: With dead ends: 90 [2018-04-09 22:13:27,169 INFO L226 Difference]: Without dead ends: 80 [2018-04-09 22:13:27,170 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 60 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 22:13:27,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-04-09 22:13:27,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2018-04-09 22:13:27,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-04-09 22:13:27,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 80 transitions. [2018-04-09 22:13:27,182 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 80 transitions. Word has length 47 [2018-04-09 22:13:27,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:13:27,182 INFO L459 AbstractCegarLoop]: Abstraction has 80 states and 80 transitions. [2018-04-09 22:13:27,182 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-04-09 22:13:27,182 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 80 transitions. [2018-04-09 22:13:27,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-04-09 22:13:27,185 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:13:27,185 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] [2018-04-09 22:13:27,185 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-09 22:13:27,185 INFO L82 PathProgramCache]: Analyzing trace with hash -824210363, 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 22:13:27,193 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:13:27,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:13:27,218 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:13:27,735 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 22:13:27,736 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:13:29,216 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 22:13:29,245 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 22:13:29,245 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 66 [2018-04-09 22:13:29,245 INFO L442 AbstractCegarLoop]: Interpolant automaton has 66 states [2018-04-09 22:13:29,246 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2018-04-09 22:13:29,248 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2083, Invalid=2207, Unknown=0, NotChecked=0, Total=4290 [2018-04-09 22:13:29,248 INFO L87 Difference]: Start difference. First operand 80 states and 80 transitions. Second operand 66 states. [2018-04-09 22:13:29,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:13:29,686 INFO L93 Difference]: Finished difference Result 154 states and 185 transitions. [2018-04-09 22:13:29,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2018-04-09 22:13:29,687 INFO L78 Accepts]: Start accepts. Automaton has 66 states. Word has length 79 [2018-04-09 22:13:29,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:13:29,689 INFO L225 Difference]: With dead ends: 154 [2018-04-09 22:13:29,689 INFO L226 Difference]: Without dead ends: 144 [2018-04-09 22:13:29,690 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 92 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 22:13:29,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-04-09 22:13:29,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2018-04-09 22:13:29,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-04-09 22:13:29,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 144 transitions. [2018-04-09 22:13:29,702 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 144 transitions. Word has length 79 [2018-04-09 22:13:29,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:13:29,702 INFO L459 AbstractCegarLoop]: Abstraction has 144 states and 144 transitions. [2018-04-09 22:13:29,702 INFO L460 AbstractCegarLoop]: Interpolant automaton has 66 states. [2018-04-09 22:13:29,703 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 144 transitions. [2018-04-09 22:13:29,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-04-09 22:13:29,704 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:13:29,704 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] [2018-04-09 22:13:29,704 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-09 22:13:29,705 INFO L82 PathProgramCache]: Analyzing trace with hash 245691493, 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 22:13:29,712 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:13:29,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:13:29,757 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:13:31,097 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 22:13:31,098 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:13:31,330 WARN L148 SmtUtils]: Spent 188ms on a formula simplification that was a NOOP. DAG size: 194 [2018-04-09 22:13:31,518 WARN L148 SmtUtils]: Spent 184ms on a formula simplification that was a NOOP. DAG size: 194 [2018-04-09 22:13:34,584 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 22:13:34,606 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 22:13:34,606 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66] total 130 [2018-04-09 22:13:34,607 INFO L442 AbstractCegarLoop]: Interpolant automaton has 130 states [2018-04-09 22:13:34,608 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2018-04-09 22:13:34,610 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7224, Invalid=9546, Unknown=0, NotChecked=0, Total=16770 [2018-04-09 22:13:34,611 INFO L87 Difference]: Start difference. First operand 144 states and 144 transitions. Second operand 130 states. [2018-04-09 22:13:35,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:13:35,008 INFO L93 Difference]: Finished difference Result 190 states and 207 transitions. [2018-04-09 22:13:35,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2018-04-09 22:13:35,009 INFO L78 Accepts]: Start accepts. Automaton has 130 states. Word has length 143 [2018-04-09 22:13:35,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:13:35,011 INFO L225 Difference]: With dead ends: 190 [2018-04-09 22:13:35,011 INFO L226 Difference]: Without dead ends: 180 [2018-04-09 22:13:35,014 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 156 SyntacticMatches, 1 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2914 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=7292, Invalid=9738, Unknown=0, NotChecked=0, Total=17030 [2018-04-09 22:13:35,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2018-04-09 22:13:35,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2018-04-09 22:13:35,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2018-04-09 22:13:35,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 180 transitions. [2018-04-09 22:13:35,027 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 180 transitions. Word has length 143 [2018-04-09 22:13:35,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:13:35,028 INFO L459 AbstractCegarLoop]: Abstraction has 180 states and 180 transitions. [2018-04-09 22:13:35,028 INFO L460 AbstractCegarLoop]: Interpolant automaton has 130 states. [2018-04-09 22:13:35,028 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 180 transitions. [2018-04-09 22:13:35,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-04-09 22:13:35,030 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:13:35,030 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] [2018-04-09 22:13:35,030 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-09 22:13:35,030 INFO L82 PathProgramCache]: Analyzing trace with hash -2044090761, 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 22:13:35,037 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:13:35,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:13:35,073 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:13:35,091 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:13:35,092 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 22:13:35,093 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 22:13:35,094 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 22:13:35,094 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-04-09 22:13:35,187 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 22:13:35,239 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 22:13:35,239 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:13:35,276 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_~#cstats~0.base_18| Int)) (or (not (= 0 (select |c_#valid| |v_main_~#cstats~0.base_18|))) (= (store |c_#valid| |v_main_~#cstats~0.base_18| 0) |c_old(#valid)|))) is different from false [2018-04-09 22:13:35,296 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 22:13:35,318 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 22:13:35,319 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 7 [2018-04-09 22:13:35,319 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-09 22:13:35,320 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-09 22:13:35,320 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=21, Unknown=2, NotChecked=18, Total=56 [2018-04-09 22:13:35,320 INFO L87 Difference]: Start difference. First operand 180 states and 180 transitions. Second operand 8 states. [2018-04-09 22:13:35,348 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_~#cstats~0.base_18| Int)) (or (not (= 0 (select |c_#valid| |v_main_~#cstats~0.base_18|))) (= (store |c_#valid| |v_main_~#cstats~0.base_18| 0) |c_old(#valid)|)))) is different from false [2018-04-09 22:13:35,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:13:35,457 INFO L93 Difference]: Finished difference Result 180 states and 180 transitions. [2018-04-09 22:13:35,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-09 22:13:35,457 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 179 [2018-04-09 22:13:35,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:13:35,458 INFO L225 Difference]: With dead ends: 180 [2018-04-09 22:13:35,458 INFO L226 Difference]: Without dead ends: 0 [2018-04-09 22:13:35,459 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 350 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 22:13:35,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-04-09 22:13:35,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-04-09 22:13:35,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-04-09 22:13:35,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-04-09 22:13:35,460 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 179 [2018-04-09 22:13:35,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:13:35,460 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-04-09 22:13:35,460 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-09 22:13:35,460 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-04-09 22:13:35,460 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-04-09 22:13:35,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-04-09 22:13:35,653 WARN L151 SmtUtils]: Spent 153ms on a formula simplification. DAG size of input: 311 DAG size of output 9 [2018-04-09 22:13:35,776 INFO L416 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-04-09 22:13:35,777 INFO L416 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-04-09 22:13:35,777 INFO L412 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-04-09 22:13:35,777 INFO L416 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-04-09 22:13:35,777 INFO L419 ceAbstractionStarter]: At program point #Ultimate.C_memsetENTRY(line -1) the Hoare annotation is: true [2018-04-09 22:13:35,777 INFO L416 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-04-09 22:13:35,777 INFO L416 ceAbstractionStarter]: For program point L-1'(line -1) no Hoare annotation was computed. [2018-04-09 22:13:35,777 INFO L419 ceAbstractionStarter]: At program point L-1''(line -1) the Hoare annotation is: true [2018-04-09 22:13:35,777 INFO L416 ceAbstractionStarter]: For program point #Ultimate.C_memsetFINAL(line -1) no Hoare annotation was computed. [2018-04-09 22:13:35,777 INFO L416 ceAbstractionStarter]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2018-04-09 22:13:35,778 INFO L416 ceAbstractionStarter]: For program point #Ultimate.C_memsetEXIT(line -1) no Hoare annotation was computed. [2018-04-09 22:13:35,778 INFO L419 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-04-09 22:13:35,778 INFO L419 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-04-09 22:13:35,778 INFO L416 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-04-09 22:13:35,778 INFO L416 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-04-09 22:13:35,778 INFO L412 ceAbstractionStarter]: At program point mainENTRY(lines 25 29) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-04-09 22:13:35,778 INFO L416 ceAbstractionStarter]: For program point L27(line 27) no Hoare annotation was computed. [2018-04-09 22:13:35,778 INFO L412 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: (and (= 80 (select |#length| |main_~#cstats~0.base|)) (= |#valid| (store |old(#valid)| |main_~#cstats~0.base| 1)) (= 0 (select |old(#valid)| |main_~#cstats~0.base|)) (= 0 |main_~#cstats~0.offset|)) [2018-04-09 22:13:35,778 INFO L416 ceAbstractionStarter]: For program point mainErr1RequiresViolation(line 27) no Hoare annotation was computed. [2018-04-09 22:13:35,778 INFO L416 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-04-09 22:13:35,778 INFO L416 ceAbstractionStarter]: For program point L26'(line 26) no Hoare annotation was computed. [2018-04-09 22:13:35,778 INFO L416 ceAbstractionStarter]: For program point L26''(line 26) no Hoare annotation was computed. [2018-04-09 22:13:35,779 INFO L416 ceAbstractionStarter]: For program point mainFINAL(lines 25 29) no Hoare annotation was computed. [2018-04-09 22:13:35,779 INFO L416 ceAbstractionStarter]: For program point mainErr2EnsuresViolationMEMORY_LEAK(lines 25 29) no Hoare annotation was computed. [2018-04-09 22:13:35,779 INFO L416 ceAbstractionStarter]: For program point mainErr0RequiresViolation(line 27) no Hoare annotation was computed. [2018-04-09 22:13:35,779 INFO L416 ceAbstractionStarter]: For program point mainEXIT(lines 25 29) no Hoare annotation was computed. [2018-04-09 22:13:35,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.04 10:13:35 BoogieIcfgContainer [2018-04-09 22:13:35,784 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-09 22:13:35,785 INFO L168 Benchmark]: Toolchain (without parser) took 11423.26 ms. Allocated memory was 307.8 MB in the beginning and 640.7 MB in the end (delta: 332.9 MB). Free memory was 251.2 MB in the beginning and 389.1 MB in the end (delta: -137.9 MB). Peak memory consumption was 195.1 MB. Max. memory is 5.3 GB. [2018-04-09 22:13:35,787 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 307.8 MB. Free memory is still 270.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-09 22:13:35,787 INFO L168 Benchmark]: CACSL2BoogieTranslator took 196.56 ms. Allocated memory is still 307.8 MB. Free memory was 251.2 MB in the beginning and 241.1 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. [2018-04-09 22:13:35,788 INFO L168 Benchmark]: Boogie Preprocessor took 30.01 ms. Allocated memory is still 307.8 MB. Free memory was 241.1 MB in the beginning and 240.1 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 5.3 GB. [2018-04-09 22:13:35,788 INFO L168 Benchmark]: RCFGBuilder took 256.47 ms. Allocated memory was 307.8 MB in the beginning and 472.9 MB in the end (delta: 165.2 MB). Free memory was 240.1 MB in the beginning and 442.9 MB in the end (delta: -202.7 MB). Peak memory consumption was 22.9 MB. Max. memory is 5.3 GB. [2018-04-09 22:13:35,789 INFO L168 Benchmark]: TraceAbstraction took 10936.00 ms. Allocated memory was 472.9 MB in the beginning and 640.7 MB in the end (delta: 167.8 MB). Free memory was 442.9 MB in the beginning and 389.1 MB in the end (delta: 53.8 MB). Peak memory consumption was 221.5 MB. Max. memory is 5.3 GB. [2018-04-09 22:13:35,792 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 307.8 MB. Free memory is still 270.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 196.56 ms. Allocated memory is still 307.8 MB. Free memory was 251.2 MB in the beginning and 241.1 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 30.01 ms. Allocated memory is still 307.8 MB. Free memory was 241.1 MB in the beginning and 240.1 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 5.3 GB. * RCFGBuilder took 256.47 ms. Allocated memory was 307.8 MB in the beginning and 472.9 MB in the end (delta: 165.2 MB). Free memory was 240.1 MB in the beginning and 442.9 MB in the end (delta: -202.7 MB). Peak memory consumption was 22.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 10936.00 ms. Allocated memory was 472.9 MB in the beginning and 640.7 MB in the end (delta: 167.8 MB). Free memory was 442.9 MB in the beginning and 389.1 MB in the end (delta: 53.8 MB). Peak memory consumption was 221.5 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 27]: 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: 27]: 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, 26 locations, 3 error locations. SAFE Result, 10.8s OverallTime, 9 OverallIterations, 80 TraceHistogramMax, 1.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 166 SDtfs, 487 SDslu, 394 SDs, 0 SdLazy, 597 SolverSat, 903 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1075 GetRequests, 797 SyntacticMatches, 7 SemanticMatches, 271 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 3023 ImplicationChecksByTransitivity, 7.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=180occurred 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, 30 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, 537 NumberOfCodeBlocks, 537 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1056 ConstructedInterpolants, 169 QuantifiedInterpolants, 536292 SizeOfPredicates, 8 NumberOfNonLiveVariables, 1089 ConjunctsInSsa, 146 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/memsetNonZero_true-valid-memsafety_true-termination.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-09_22-13-35-801.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memsetNonZero_true-valid-memsafety_true-termination.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-09_22-13-35-801.csv Received shutdown request...