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/memsetNonZero2_true-valid-memsafety_true-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-35b68b2 [2018-04-06 21:26:54,164 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-06 21:26:54,165 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-06 21:26:54,180 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-06 21:26:54,180 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-06 21:26:54,181 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-06 21:26:54,182 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-06 21:26:54,184 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-06 21:26:54,186 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-06 21:26:54,187 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-06 21:26:54,188 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-06 21:26:54,188 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-06 21:26:54,189 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-06 21:26:54,190 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-06 21:26:54,191 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-06 21:26:54,193 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-06 21:26:54,195 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-06 21:26:54,197 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-06 21:26:54,198 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-06 21:26:54,200 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-06 21:26:54,202 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-06 21:26:54,202 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-06 21:26:54,203 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-06 21:26:54,204 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-06 21:26:54,204 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-06 21:26:54,206 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-06 21:26:54,206 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-06 21:26:54,207 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-06 21:26:54,207 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-06 21:26:54,208 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-06 21:26:54,208 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-06 21:26:54,209 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 21:26:54,234 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-06 21:26:54,234 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-06 21:26:54,234 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-06 21:26:54,234 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-06 21:26:54,235 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-06 21:26:54,235 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-06 21:26:54,235 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-06 21:26:54,236 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-06 21:26:54,236 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-04-06 21:26:54,236 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-06 21:26:54,236 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-06 21:26:54,236 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-06 21:26:54,237 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-06 21:26:54,237 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-06 21:26:54,237 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-06 21:26:54,237 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-06 21:26:54,237 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-06 21:26:54,238 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-06 21:26:54,238 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-06 21:26:54,238 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-06 21:26:54,238 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-06 21:26:54,238 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-06 21:26:54,239 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-06 21:26:54,239 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-06 21:26:54,239 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-06 21:26:54,239 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-06 21:26:54,239 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-06 21:26:54,240 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-06 21:26:54,240 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-06 21:26:54,240 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-06 21:26:54,240 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-06 21:26:54,240 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-06 21:26:54,241 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-06 21:26:54,241 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-06 21:26:54,242 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-06 21:26:54,242 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-06 21:26:54,242 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-06 21:26:54,242 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-06 21:26:54,277 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-06 21:26:54,289 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-06 21:26:54,293 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-06 21:26:54,295 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-06 21:26:54,295 INFO L276 PluginConnector]: CDTParser initialized [2018-04-06 21:26:54,296 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memsetNonZero2_true-valid-memsafety_true-termination.c [2018-04-06 21:26:54,636 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG7d897e0ca [2018-04-06 21:26:54,737 INFO L287 CDTParser]: IsIndexed: true [2018-04-06 21:26:54,737 INFO L288 CDTParser]: Found 1 translation units. [2018-04-06 21:26:54,737 INFO L168 CDTParser]: Scanning memsetNonZero2_true-valid-memsafety_true-termination.c [2018-04-06 21:26:54,739 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-06 21:26:54,739 INFO L215 ultiparseSymbolTable]: [2018-04-06 21:26:54,739 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-06 21:26:54,739 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in memsetNonZero2_true-valid-memsafety_true-termination.c [2018-04-06 21:26:54,739 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-06 21:26:54,740 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemsetNonZero__true_valid_memsafety_true_termination_c__size_t in memsetNonZero2_true-valid-memsafety_true-termination.c [2018-04-06 21:26:54,740 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemsetNonZero__true_valid_memsafety_true_termination_c____kernel_size_t in memsetNonZero2_true-valid-memsafety_true-termination.c [2018-04-06 21:26:54,740 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemsetNonZero__true_valid_memsafety_true_termination_c____u32 in memsetNonZero2_true-valid-memsafety_true-termination.c [2018-04-06 21:26:54,755 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG7d897e0ca [2018-04-06 21:26:54,759 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-06 21:26:54,761 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-06 21:26:54,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-06 21:26:54,762 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-06 21:26:54,767 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-06 21:26:54,767 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 09:26:54" (1/1) ... [2018-04-06 21:26:54,769 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@579856a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:26:54, skipping insertion in model container [2018-04-06 21:26:54,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 09:26:54" (1/1) ... [2018-04-06 21:26:54,784 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-06 21:26:54,795 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-06 21:26:54,911 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-06 21:26:54,933 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-06 21:26:54,937 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 7 non ball SCCs. Number of states in SCCs 7. [2018-04-06 21:26:54,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:26:54 WrapperNode [2018-04-06 21:26:54,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-06 21:26:54,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-06 21:26:54,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-06 21:26:54,945 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-06 21:26:54,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:26:54" (1/1) ... [2018-04-06 21:26:54,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:26:54" (1/1) ... [2018-04-06 21:26:54,962 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:26:54" (1/1) ... [2018-04-06 21:26:54,962 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:26:54" (1/1) ... [2018-04-06 21:26:54,964 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:26:54" (1/1) ... [2018-04-06 21:26:54,969 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:26:54" (1/1) ... [2018-04-06 21:26:54,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:26:54" (1/1) ... [2018-04-06 21:26:54,972 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-06 21:26:54,972 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-06 21:26:54,972 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-06 21:26:54,972 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-06 21:26:54,973 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:26:54" (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 21:26:55,031 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-06 21:26:55,032 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-06 21:26:55,032 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-06 21:26:55,032 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-04-06 21:26:55,032 INFO L128 BoogieDeclarations]: Found specification of procedure memset [2018-04-06 21:26:55,032 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-06 21:26:55,032 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-06 21:26:55,032 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-04-06 21:26:55,033 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-06 21:26:55,033 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-06 21:26:55,033 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-06 21:26:55,173 WARN L446 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-04-06 21:26:55,237 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-06 21:26:55,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 09:26:55 BoogieIcfgContainer [2018-04-06 21:26:55,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-06 21:26:55,238 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-06 21:26:55,238 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-06 21:26:55,241 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-06 21:26:55,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.04 09:26:54" (1/3) ... [2018-04-06 21:26:55,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64704ce0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 09:26:55, skipping insertion in model container [2018-04-06 21:26:55,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:26:54" (2/3) ... [2018-04-06 21:26:55,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64704ce0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 09:26:55, skipping insertion in model container [2018-04-06 21:26:55,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 09:26:55" (3/3) ... [2018-04-06 21:26:55,244 INFO L107 eAbstractionObserver]: Analyzing ICFG memsetNonZero2_true-valid-memsafety_true-termination.c [2018-04-06 21:26:55,251 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-06 21:26:55,256 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-04-06 21:26:55,293 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-06 21:26:55,294 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-06 21:26:55,294 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-06 21:26:55,295 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-06 21:26:55,295 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-06 21:26:55,295 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-06 21:26:55,295 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-06 21:26:55,295 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-06 21:26:55,295 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-06 21:26:55,296 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-06 21:26:55,314 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2018-04-06 21:26:55,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-04-06 21:26:55,320 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 21:26:55,321 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-04-06 21:26:55,321 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-06 21:26:55,325 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 [2018-04-06 21:26:55,337 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 21:26:55,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 21:26:55,374 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 21:26:55,410 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 21:26:55,412 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-06 21:26:55,417 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 21:26:55,417 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-06 21:26:55,435 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 21:26:55,435 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 21:26:55,455 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 21:26:55,484 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-06 21:26:55,485 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2018-04-06 21:26:55,486 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-06 21:26:55,496 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-06 21:26:55,496 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-06 21:26:55,498 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 3 states. [2018-04-06 21:26:55,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 21:26:55,537 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2018-04-06 21:26:55,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-06 21:26:55,539 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-04-06 21:26:55,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 21:26:55,549 INFO L225 Difference]: With dead ends: 26 [2018-04-06 21:26:55,549 INFO L226 Difference]: Without dead ends: 22 [2018-04-06 21:26:55,552 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 [2018-04-06 21:26:55,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-04-06 21:26:55,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-04-06 21:26:55,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-04-06 21:26:55,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-04-06 21:26:55,581 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 8 [2018-04-06 21:26:55,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 21:26:55,581 INFO L459 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-04-06 21:26:55,582 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-06 21:26:55,582 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-04-06 21:26:55,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-04-06 21:26:55,583 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 21:26:55,583 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-04-06 21:26:55,583 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-06 21:26:55,583 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 [2018-04-06 21:26:55,595 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 21:26:55,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 21:26:55,612 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 21:26:55,625 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 21:26:55,626 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-06 21:26:55,636 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 21:26:55,636 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-06 21:26:55,649 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 21:26:55,649 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 21:26:55,673 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 21:26:55,694 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-06 21:26:55,694 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2018-04-06 21:26:55,695 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-06 21:26:55,695 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-06 21:26:55,696 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-04-06 21:26:55,696 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 4 states. [2018-04-06 21:26:55,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 21:26:55,720 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-04-06 21:26:55,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-06 21:26:55,721 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-04-06 21:26:55,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 21:26:55,721 INFO L225 Difference]: With dead ends: 22 [2018-04-06 21:26:55,722 INFO L226 Difference]: Without dead ends: 21 [2018-04-06 21:26:55,722 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 [2018-04-06 21:26:55,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-04-06 21:26:55,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-04-06 21:26:55,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-04-06 21:26:55,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2018-04-06 21:26:55,727 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 8 [2018-04-06 21:26:55,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 21:26:55,727 INFO L459 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2018-04-06 21:26:55,727 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-06 21:26:55,727 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2018-04-06 21:26:55,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-06 21:26:55,728 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 21:26:55,728 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-06 21:26:55,729 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-06 21:26:55,729 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 [2018-04-06 21:26:55,750 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 21:26:55,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 21:26:55,771 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 21:26:55,816 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 21:26:55,816 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 21:26:55,899 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 21:26:55,920 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-06 21:26:55,921 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2018-04-06 21:26:55,921 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-06 21:26:55,921 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-06 21:26:55,921 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-04-06 21:26:55,922 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 6 states. [2018-04-06 21:26:55,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 21:26:55,963 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2018-04-06 21:26:55,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-06 21:26:55,964 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-04-06 21:26:55,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 21:26:55,965 INFO L225 Difference]: With dead ends: 34 [2018-04-06 21:26:55,965 INFO L226 Difference]: Without dead ends: 24 [2018-04-06 21:26:55,965 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 [2018-04-06 21:26:55,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-04-06 21:26:55,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-04-06 21:26:55,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-04-06 21:26:55,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-04-06 21:26:55,970 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 19 [2018-04-06 21:26:55,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 21:26:55,970 INFO L459 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-04-06 21:26:55,971 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-06 21:26:55,971 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-04-06 21:26:55,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-04-06 21:26:55,971 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 21:26:55,972 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] [2018-04-06 21:26:55,972 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-06 21:26:55,972 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 [2018-04-06 21:26:55,984 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 21:26:56,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 21:26:56,007 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 21:26:56,044 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 21:26:56,045 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 21:26:56,153 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 21:26:56,176 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-06 21:26:56,176 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2018-04-06 21:26:56,177 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-06 21:26:56,177 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-06 21:26:56,177 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-04-06 21:26:56,177 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 10 states. [2018-04-06 21:26:56,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 21:26:56,216 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2018-04-06 21:26:56,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-06 21:26:56,216 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 23 [2018-04-06 21:26:56,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 21:26:56,218 INFO L225 Difference]: With dead ends: 42 [2018-04-06 21:26:56,218 INFO L226 Difference]: Without dead ends: 32 [2018-04-06 21:26:56,218 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 [2018-04-06 21:26:56,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-04-06 21:26:56,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-04-06 21:26:56,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-04-06 21:26:56,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2018-04-06 21:26:56,225 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 23 [2018-04-06 21:26:56,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 21:26:56,226 INFO L459 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2018-04-06 21:26:56,226 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-06 21:26:56,226 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2018-04-06 21:26:56,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-04-06 21:26:56,227 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 21:26:56,227 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] [2018-04-06 21:26:56,227 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-06 21:26:56,228 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 [2018-04-06 21:26:56,236 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 21:26:56,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 21:26:56,257 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 21:26:56,346 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 21:26:56,346 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 21:26:56,620 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 21:26:56,641 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-06 21:26:56,641 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2018-04-06 21:26:56,642 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-06 21:26:56,642 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-06 21:26:56,642 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=167, Unknown=0, NotChecked=0, Total=306 [2018-04-06 21:26:56,642 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 18 states. [2018-04-06 21:26:56,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 21:26:56,732 INFO L93 Difference]: Finished difference Result 58 states and 65 transitions. [2018-04-06 21:26:56,734 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-06 21:26:56,734 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 31 [2018-04-06 21:26:56,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 21:26:56,736 INFO L225 Difference]: With dead ends: 58 [2018-04-06 21:26:56,736 INFO L226 Difference]: Without dead ends: 48 [2018-04-06 21:26:56,736 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 44 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 21:26:56,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-04-06 21:26:56,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-04-06 21:26:56,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-04-06 21:26:56,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2018-04-06 21:26:56,745 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 31 [2018-04-06 21:26:56,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 21:26:56,746 INFO L459 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2018-04-06 21:26:56,746 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-06 21:26:56,746 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2018-04-06 21:26:56,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-04-06 21:26:56,747 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 21:26:56,747 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] [2018-04-06 21:26:56,748 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-06 21:26:56,748 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 [2018-04-06 21:26:56,758 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 21:26:56,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 21:26:56,777 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 21:26:56,963 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 21:26:56,963 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 21:26:57,350 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 21:26:57,382 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-06 21:26:57,383 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2018-04-06 21:26:57,383 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-04-06 21:26:57,384 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-04-06 21:26:57,384 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=531, Invalid=591, Unknown=0, NotChecked=0, Total=1122 [2018-04-06 21:26:57,385 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand 34 states. [2018-04-06 21:26:57,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 21:26:57,597 INFO L93 Difference]: Finished difference Result 90 states and 105 transitions. [2018-04-06 21:26:57,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-04-06 21:26:57,597 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 47 [2018-04-06 21:26:57,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 21:26:57,598 INFO L225 Difference]: With dead ends: 90 [2018-04-06 21:26:57,598 INFO L226 Difference]: Without dead ends: 80 [2018-04-06 21:26:57,599 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 [2018-04-06 21:26:57,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-04-06 21:26:57,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2018-04-06 21:26:57,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-04-06 21:26:57,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 80 transitions. [2018-04-06 21:26:57,607 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 80 transitions. Word has length 47 [2018-04-06 21:26:57,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 21:26:57,607 INFO L459 AbstractCegarLoop]: Abstraction has 80 states and 80 transitions. [2018-04-06 21:26:57,607 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-04-06 21:26:57,607 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 80 transitions. [2018-04-06 21:26:57,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-04-06 21:26:57,609 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 21:26:57,609 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] [2018-04-06 21:26:57,609 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-06 21:26:57,609 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 [2018-04-06 21:26:57,615 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 21:26:57,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 21:26:57,639 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 21:26:58,156 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 21:26:58,157 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 21:26:59,287 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 21:26:59,308 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-06 21:26:59,308 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 66 [2018-04-06 21:26:59,308 INFO L442 AbstractCegarLoop]: Interpolant automaton has 66 states [2018-04-06 21:26:59,309 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2018-04-06 21:26:59,310 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1852, Invalid=2438, Unknown=0, NotChecked=0, Total=4290 [2018-04-06 21:26:59,311 INFO L87 Difference]: Start difference. First operand 80 states and 80 transitions. Second operand 66 states. [2018-04-06 21:26:59,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 21:26:59,515 INFO L93 Difference]: Finished difference Result 110 states and 119 transitions. [2018-04-06 21:26:59,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-04-06 21:26:59,515 INFO L78 Accepts]: Start accepts. Automaton has 66 states. Word has length 79 [2018-04-06 21:26:59,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 21:26:59,516 INFO L225 Difference]: With dead ends: 110 [2018-04-06 21:26:59,517 INFO L226 Difference]: Without dead ends: 100 [2018-04-06 21:26:59,518 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 92 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 690 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1888, Invalid=2534, Unknown=0, NotChecked=0, Total=4422 [2018-04-06 21:26:59,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-04-06 21:26:59,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2018-04-06 21:26:59,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-04-06 21:26:59,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 100 transitions. [2018-04-06 21:26:59,526 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 100 transitions. Word has length 79 [2018-04-06 21:26:59,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 21:26:59,527 INFO L459 AbstractCegarLoop]: Abstraction has 100 states and 100 transitions. [2018-04-06 21:26:59,527 INFO L460 AbstractCegarLoop]: Interpolant automaton has 66 states. [2018-04-06 21:26:59,527 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 100 transitions. [2018-04-06 21:26:59,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-04-06 21:26:59,529 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 21:26:59,529 INFO L355 BasicCegarLoop]: trace histogram [40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-06 21:26:59,529 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-06 21:26:59,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1326592079, 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 21:26:59,535 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 21:26:59,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 21:26:59,566 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 21:26:59,599 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:26:59,600 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 21:26:59,601 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-06 21:26:59,602 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 21:26:59,602 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-04-06 21:26:59,683 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 21:26:59,715 INFO L134 CoverageAnalysis]: Checked inductivity of 1600 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1600 trivial. 0 not checked. [2018-04-06 21:26:59,716 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 21:26:59,759 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_~#cstats~0.base_17| Int)) (or (= (store |c_#valid| |v_main_~#cstats~0.base_17| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_~#cstats~0.base_17|))))) is different from false [2018-04-06 21:26:59,770 INFO L134 CoverageAnalysis]: Checked inductivity of 1600 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1600 trivial. 0 not checked. [2018-04-06 21:26:59,806 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-06 21:26:59,806 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 7 [2018-04-06 21:26:59,807 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-06 21:26:59,807 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-06 21:26:59,807 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=21, Unknown=2, NotChecked=18, Total=56 [2018-04-06 21:26:59,808 INFO L87 Difference]: Start difference. First operand 100 states and 100 transitions. Second operand 8 states. [2018-04-06 21:26:59,826 WARN L1011 $PredicateComparison]: unable to prove that (and (forall ((|v_main_~#cstats~0.base_17| Int)) (or (= (store |c_#valid| |v_main_~#cstats~0.base_17| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_~#cstats~0.base_17|))))) (= |c_#valid| |c_old(#valid)|)) is different from false [2018-04-06 21:26:59,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 21:26:59,937 INFO L93 Difference]: Finished difference Result 100 states and 100 transitions. [2018-04-06 21:26:59,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-06 21:26:59,937 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 99 [2018-04-06 21:26:59,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 21:26:59,938 INFO L225 Difference]: With dead ends: 100 [2018-04-06 21:26:59,938 INFO L226 Difference]: Without dead ends: 0 [2018-04-06 21:26:59,938 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 190 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 21:26:59,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-04-06 21:26:59,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-04-06 21:26:59,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-04-06 21:26:59,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-04-06 21:26:59,939 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 99 [2018-04-06 21:26:59,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 21:26:59,939 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-04-06 21:26:59,939 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-06 21:26:59,939 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-04-06 21:26:59,939 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-04-06 21:26:59,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-04-06 21:27:00,155 INFO L416 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-04-06 21:27:00,155 INFO L416 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-04-06 21:27:00,156 INFO L412 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-04-06 21:27:00,156 INFO L416 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-04-06 21:27:00,156 INFO L419 ceAbstractionStarter]: At program point #Ultimate.C_memsetENTRY(line -1) the Hoare annotation is: true [2018-04-06 21:27:00,156 INFO L416 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-04-06 21:27:00,156 INFO L416 ceAbstractionStarter]: For program point L-1'(line -1) no Hoare annotation was computed. [2018-04-06 21:27:00,156 INFO L419 ceAbstractionStarter]: At program point L-1''(line -1) the Hoare annotation is: true [2018-04-06 21:27:00,157 INFO L416 ceAbstractionStarter]: For program point #Ultimate.C_memsetFINAL(line -1) no Hoare annotation was computed. [2018-04-06 21:27:00,157 INFO L416 ceAbstractionStarter]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2018-04-06 21:27:00,157 INFO L416 ceAbstractionStarter]: For program point #Ultimate.C_memsetEXIT(line -1) no Hoare annotation was computed. [2018-04-06 21:27:00,157 INFO L419 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-04-06 21:27:00,157 INFO L419 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-04-06 21:27:00,157 INFO L416 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-04-06 21:27:00,157 INFO L416 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-04-06 21:27:00,158 INFO L412 ceAbstractionStarter]: At program point mainENTRY(lines 20 24) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-04-06 21:27:00,158 INFO L416 ceAbstractionStarter]: For program point mainErr1RequiresViolation(line 22) no Hoare annotation was computed. [2018-04-06 21:27:00,158 INFO L416 ceAbstractionStarter]: For program point mainFINAL(lines 20 24) no Hoare annotation was computed. [2018-04-06 21:27:00,158 INFO L416 ceAbstractionStarter]: For program point mainErr2EnsuresViolationMEMORY_LEAK(lines 20 24) no Hoare annotation was computed. [2018-04-06 21:27:00,158 INFO L412 ceAbstractionStarter]: At program point L21(line 21) the Hoare annotation is: (and (= |#valid| (store |old(#valid)| |main_~#cstats~0.base| 1)) (= 0 (select |old(#valid)| |main_~#cstats~0.base|)) (= 40 (select |#length| |main_~#cstats~0.base|)) (= 0 |main_~#cstats~0.offset|)) [2018-04-06 21:27:00,158 INFO L416 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-04-06 21:27:00,158 INFO L416 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-04-06 21:27:00,159 INFO L416 ceAbstractionStarter]: For program point mainErr0RequiresViolation(line 22) no Hoare annotation was computed. [2018-04-06 21:27:00,159 INFO L416 ceAbstractionStarter]: For program point L21''(line 21) no Hoare annotation was computed. [2018-04-06 21:27:00,159 INFO L416 ceAbstractionStarter]: For program point L21'(line 21) no Hoare annotation was computed. [2018-04-06 21:27:00,159 INFO L416 ceAbstractionStarter]: For program point mainEXIT(lines 20 24) no Hoare annotation was computed. [2018-04-06 21:27:00,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.04 09:27:00 BoogieIcfgContainer [2018-04-06 21:27:00,165 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-06 21:27:00,166 INFO L168 Benchmark]: Toolchain (without parser) took 5406.17 ms. Allocated memory was 301.5 MB in the beginning and 555.2 MB in the end (delta: 253.8 MB). Free memory was 245.1 MB in the beginning and 315.1 MB in the end (delta: -70.0 MB). Peak memory consumption was 183.7 MB. Max. memory is 5.3 GB. [2018-04-06 21:27:00,168 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 301.5 MB. Free memory is still 262.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-06 21:27:00,168 INFO L168 Benchmark]: CACSL2BoogieTranslator took 183.16 ms. Allocated memory is still 301.5 MB. Free memory was 245.1 MB in the beginning and 235.0 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. [2018-04-06 21:27:00,169 INFO L168 Benchmark]: Boogie Preprocessor took 26.61 ms. Allocated memory is still 301.5 MB. Free memory was 235.0 MB in the beginning and 233.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-04-06 21:27:00,169 INFO L168 Benchmark]: RCFGBuilder took 265.30 ms. Allocated memory was 301.5 MB in the beginning and 460.8 MB in the end (delta: 159.4 MB). Free memory was 233.0 MB in the beginning and 431.1 MB in the end (delta: -198.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 5.3 GB. [2018-04-06 21:27:00,170 INFO L168 Benchmark]: TraceAbstraction took 4926.89 ms. Allocated memory was 460.8 MB in the beginning and 555.2 MB in the end (delta: 94.4 MB). Free memory was 431.1 MB in the beginning and 315.1 MB in the end (delta: 116.0 MB). Peak memory consumption was 210.4 MB. Max. memory is 5.3 GB. [2018-04-06 21:27:00,173 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 301.5 MB. Free memory is still 262.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 183.16 ms. Allocated memory is still 301.5 MB. Free memory was 245.1 MB in the beginning and 235.0 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 26.61 ms. Allocated memory is still 301.5 MB. Free memory was 235.0 MB in the beginning and 233.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 265.30 ms. Allocated memory was 301.5 MB in the beginning and 460.8 MB in the end (delta: 159.4 MB). Free memory was 233.0 MB in the beginning and 431.1 MB in the end (delta: -198.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 4926.89 ms. Allocated memory was 460.8 MB in the beginning and 555.2 MB in the end (delta: 94.4 MB). Free memory was 431.1 MB in the beginning and 315.1 MB in the end (delta: 116.0 MB). Peak memory consumption was 210.4 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 20]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 22]: 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, 4.8s OverallTime, 8 OverallIterations, 40 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 148 SDtfs, 222 SDslu, 316 SDs, 0 SdLazy, 340 SolverSat, 225 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 629 GetRequests, 481 SyntacticMatches, 6 SemanticMatches, 142 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 739 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=100occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 47 NumberOfFragments, 30 HoareAnnotationTreeSize, 7 FomulaSimplifications, 799 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 54 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 314 NumberOfCodeBlocks, 314 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 612 ConstructedInterpolants, 89 QuantifiedInterpolants, 159292 SizeOfPredicates, 7 NumberOfNonLiveVariables, 720 ConjunctsInSsa, 81 ConjunctsInUnsatCore, 16 InterpolantComputations, 8 PerfectInterpolantSequences, 3200/5472 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/memsetNonZero2_true-valid-memsafety_true-termination.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-06_21-27-00-184.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memsetNonZero2_true-valid-memsafety_true-termination.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-06_21-27-00-184.csv Received shutdown request...