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/ArraysOfVariableLength2_true-valid-memsafety.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-4cf2d92 [2018-03-28 13:09:42,416 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-03-28 13:09:42,418 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-03-28 13:09:42,432 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-03-28 13:09:42,433 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-03-28 13:09:42,434 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-03-28 13:09:42,435 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-03-28 13:09:42,436 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-03-28 13:09:42,438 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-03-28 13:09:42,439 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-03-28 13:09:42,440 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-03-28 13:09:42,440 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-03-28 13:09:42,441 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-03-28 13:09:42,442 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-03-28 13:09:42,443 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-03-28 13:09:42,445 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-03-28 13:09:42,447 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-03-28 13:09:42,449 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-03-28 13:09:42,450 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-03-28 13:09:42,452 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-03-28 13:09:42,454 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-03-28 13:09:42,454 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-03-28 13:09:42,454 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-03-28 13:09:42,455 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-03-28 13:09:42,456 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-03-28 13:09:42,457 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-03-28 13:09:42,457 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-03-28 13:09:42,458 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-03-28 13:09:42,459 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-03-28 13:09:42,459 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-03-28 13:09:42,460 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-03-28 13:09:42,460 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 [2018-03-28 13:09:42,483 INFO L110 SettingsManager]: Loading preferences was successful [2018-03-28 13:09:42,483 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-03-28 13:09:42,483 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-03-28 13:09:42,484 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-03-28 13:09:42,484 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-03-28 13:09:42,484 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-03-28 13:09:42,484 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-03-28 13:09:42,485 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-03-28 13:09:42,485 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-03-28 13:09:42,485 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-03-28 13:09:42,485 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-03-28 13:09:42,485 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-03-28 13:09:42,486 INFO L133 SettingsManager]: * sizeof long=4 [2018-03-28 13:09:42,486 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-03-28 13:09:42,486 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-03-28 13:09:42,486 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-03-28 13:09:42,486 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-03-28 13:09:42,486 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-03-28 13:09:42,487 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-03-28 13:09:42,487 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-03-28 13:09:42,487 INFO L133 SettingsManager]: * sizeof long double=12 [2018-03-28 13:09:42,487 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-03-28 13:09:42,487 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-03-28 13:09:42,488 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-03-28 13:09:42,488 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-03-28 13:09:42,488 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-28 13:09:42,488 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-03-28 13:09:42,488 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-03-28 13:09:42,489 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-03-28 13:09:42,489 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-03-28 13:09:42,489 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-03-28 13:09:42,489 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:09:42,489 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-03-28 13:09:42,490 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-03-28 13:09:42,490 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-03-28 13:09:42,490 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-03-28 13:09:42,491 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-03-28 13:09:42,523 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-03-28 13:09:42,535 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-03-28 13:09:42,539 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-03-28 13:09:42,540 INFO L271 PluginConnector]: Initializing CDTParser... [2018-03-28 13:09:42,541 INFO L276 PluginConnector]: CDTParser initialized [2018-03-28 13:09:42,541 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength2_true-valid-memsafety.c [2018-03-28 13:09:42,873 INFO L228 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG84866e04f [2018-03-28 13:09:43,039 INFO L291 CDTParser]: IsIndexed: true [2018-03-28 13:09:43,039 INFO L292 CDTParser]: Found 1 translation units. [2018-03-28 13:09:43,040 INFO L171 CDTParser]: Scanning ArraysOfVariableLength2_true-valid-memsafety.c [2018-03-28 13:09:43,041 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-03-28 13:09:43,042 INFO L215 ultiparseSymbolTable]: [2018-03-28 13:09:43,042 INFO L218 ultiparseSymbolTable]: Function table: [2018-03-28 13:09:43,042 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo ('foo') in ArraysOfVariableLength2_true-valid-memsafety.c [2018-03-28 13:09:43,042 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in ArraysOfVariableLength2_true-valid-memsafety.c [2018-03-28 13:09:43,042 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__bar ('bar') in ArraysOfVariableLength2_true-valid-memsafety.c [2018-03-28 13:09:43,042 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-03-28 13:09:43,043 INFO L233 ultiparseSymbolTable]: [2018-03-28 13:09:43,069 INFO L334 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG84866e04f [2018-03-28 13:09:43,074 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-03-28 13:09:43,078 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-03-28 13:09:43,079 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-03-28 13:09:43,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-03-28 13:09:43,086 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-03-28 13:09:43,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 01:09:43" (1/1) ... [2018-03-28 13:09:43,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@520cb31d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:09:43, skipping insertion in model container [2018-03-28 13:09:43,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 01:09:43" (1/1) ... [2018-03-28 13:09:43,110 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-28 13:09:43,155 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-28 13:09:43,308 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-28 13:09:43,336 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-28 13:09:43,342 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 10 non ball SCCs. Number of states in SCCs 10. [2018-03-28 13:09:43,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:09:43 WrapperNode [2018-03-28 13:09:43,354 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-03-28 13:09:43,354 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-03-28 13:09:43,354 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-03-28 13:09:43,354 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-03-28 13:09:43,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:09:43" (1/1) ... [2018-03-28 13:09:43,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:09:43" (1/1) ... [2018-03-28 13:09:43,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:09:43" (1/1) ... [2018-03-28 13:09:43,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:09:43" (1/1) ... [2018-03-28 13:09:43,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:09:43" (1/1) ... [2018-03-28 13:09:43,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:09:43" (1/1) ... [2018-03-28 13:09:43,388 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:09:43" (1/1) ... [2018-03-28 13:09:43,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-03-28 13:09:43,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-03-28 13:09:43,391 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-03-28 13:09:43,391 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-03-28 13:09:43,392 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:09:43" (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 [2018-03-28 13:09:43,438 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-03-28 13:09:43,438 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-03-28 13:09:43,438 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__bar [2018-03-28 13:09:43,438 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo [2018-03-28 13:09:43,438 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-03-28 13:09:43,439 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__bar [2018-03-28 13:09:43,439 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-03-28 13:09:43,439 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo [2018-03-28 13:09:43,439 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-03-28 13:09:43,439 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-03-28 13:09:43,439 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-03-28 13:09:43,439 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-03-28 13:09:43,439 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-03-28 13:09:43,439 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-03-28 13:09:43,439 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-03-28 13:09:43,775 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-03-28 13:09:43,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 01:09:43 BoogieIcfgContainer [2018-03-28 13:09:43,776 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-03-28 13:09:43,776 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-03-28 13:09:43,776 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-03-28 13:09:43,779 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-03-28 13:09:43,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.03 01:09:43" (1/3) ... [2018-03-28 13:09:43,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fd039d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 01:09:43, skipping insertion in model container [2018-03-28 13:09:43,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:09:43" (2/3) ... [2018-03-28 13:09:43,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fd039d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 01:09:43, skipping insertion in model container [2018-03-28 13:09:43,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 01:09:43" (3/3) ... [2018-03-28 13:09:43,783 INFO L107 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength2_true-valid-memsafety.c [2018-03-28 13:09:43,793 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-03-28 13:09:43,799 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-03-28 13:09:43,838 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-03-28 13:09:43,839 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-03-28 13:09:43,839 INFO L370 AbstractCegarLoop]: Hoare is true [2018-03-28 13:09:43,839 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-03-28 13:09:43,839 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-03-28 13:09:43,839 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-03-28 13:09:43,839 INFO L374 AbstractCegarLoop]: Difference is false [2018-03-28 13:09:43,840 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-03-28 13:09:43,840 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-03-28 13:09:43,841 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-03-28 13:09:43,861 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2018-03-28 13:09:43,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-03-28 13:09:43,867 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:09:43,868 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:09:43,868 INFO L408 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__barErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__barErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr3RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 13:09:43,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1517835154, 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 [2018-03-28 13:09:43,884 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:09:43,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:09:43,919 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:09:43,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:09:43,936 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:09:43,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:09:43,993 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 13:09:43,993 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2018-03-28 13:09:43,995 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-03-28 13:09:44,005 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-03-28 13:09:44,005 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-03-28 13:09:44,007 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 2 states. [2018-03-28 13:09:44,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:09:44,036 INFO L93 Difference]: Finished difference Result 169 states and 189 transitions. [2018-03-28 13:09:44,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-03-28 13:09:44,037 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-03-28 13:09:44,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:09:44,045 INFO L225 Difference]: With dead ends: 169 [2018-03-28 13:09:44,045 INFO L226 Difference]: Without dead ends: 86 [2018-03-28 13:09:44,048 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-03-28 13:09:44,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-03-28 13:09:44,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2018-03-28 13:09:44,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-03-28 13:09:44,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2018-03-28 13:09:44,087 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 14 [2018-03-28 13:09:44,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:09:44,087 INFO L459 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2018-03-28 13:09:44,087 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-03-28 13:09:44,088 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2018-03-28 13:09:44,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-03-28 13:09:44,088 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:09:44,089 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:09:44,089 INFO L408 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__barErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__barErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr3RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 13:09:44,089 INFO L82 PathProgramCache]: Analyzing trace with hash -693346302, 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 [2018-03-28 13:09:44,102 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:09:44,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:09:44,122 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:09:44,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:09:44,150 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:09:44,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:09:44,193 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 13:09:44,193 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2018-03-28 13:09:44,195 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-03-28 13:09:44,195 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-03-28 13:09:44,195 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-03-28 13:09:44,196 INFO L87 Difference]: Start difference. First operand 86 states and 91 transitions. Second operand 4 states. [2018-03-28 13:09:44,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:09:44,275 INFO L93 Difference]: Finished difference Result 110 states and 118 transitions. [2018-03-28 13:09:44,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-03-28 13:09:44,275 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-03-28 13:09:44,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:09:44,278 INFO L225 Difference]: With dead ends: 110 [2018-03-28 13:09:44,278 INFO L226 Difference]: Without dead ends: 93 [2018-03-28 13:09:44,279 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-03-28 13:09:44,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2018-03-28 13:09:44,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 85. [2018-03-28 13:09:44,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-03-28 13:09:44,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 89 transitions. [2018-03-28 13:09:44,293 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 89 transitions. Word has length 15 [2018-03-28 13:09:44,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:09:44,293 INFO L459 AbstractCegarLoop]: Abstraction has 85 states and 89 transitions. [2018-03-28 13:09:44,293 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-03-28 13:09:44,293 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 89 transitions. [2018-03-28 13:09:44,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-03-28 13:09:44,294 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:09:44,294 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:09:44,294 INFO L408 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__barErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__barErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr3RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 13:09:44,294 INFO L82 PathProgramCache]: Analyzing trace with hash 1457275385, 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 [2018-03-28 13:09:44,304 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:09:44,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:09:44,327 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:09:44,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:09:44,367 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:09:44,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:09:44,445 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 13:09:44,445 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 7 [2018-03-28 13:09:44,446 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-03-28 13:09:44,446 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-03-28 13:09:44,446 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-03-28 13:09:44,447 INFO L87 Difference]: Start difference. First operand 85 states and 89 transitions. Second operand 7 states. [2018-03-28 13:09:44,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:09:44,635 INFO L93 Difference]: Finished difference Result 188 states and 200 transitions. [2018-03-28 13:09:44,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-03-28 13:09:44,636 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-03-28 13:09:44,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:09:44,638 INFO L225 Difference]: With dead ends: 188 [2018-03-28 13:09:44,638 INFO L226 Difference]: Without dead ends: 114 [2018-03-28 13:09:44,639 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-03-28 13:09:44,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-03-28 13:09:44,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 107. [2018-03-28 13:09:44,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2018-03-28 13:09:44,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 113 transitions. [2018-03-28 13:09:44,652 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 113 transitions. Word has length 21 [2018-03-28 13:09:44,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:09:44,653 INFO L459 AbstractCegarLoop]: Abstraction has 107 states and 113 transitions. [2018-03-28 13:09:44,653 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-03-28 13:09:44,653 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 113 transitions. [2018-03-28 13:09:44,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-03-28 13:09:44,654 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:09:44,654 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:09:44,655 INFO L408 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__barErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__barErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr3RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 13:09:44,655 INFO L82 PathProgramCache]: Analyzing trace with hash 80098363, 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 [2018-03-28 13:09:44,661 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:09:44,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:09:44,682 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:09:44,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:09:44,749 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:09:44,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:09:44,862 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 13:09:44,863 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 9 [2018-03-28 13:09:44,863 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-03-28 13:09:44,863 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-03-28 13:09:44,864 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-03-28 13:09:44,864 INFO L87 Difference]: Start difference. First operand 107 states and 113 transitions. Second operand 9 states. [2018-03-28 13:09:45,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:09:45,035 INFO L93 Difference]: Finished difference Result 210 states and 222 transitions. [2018-03-28 13:09:45,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-03-28 13:09:45,035 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2018-03-28 13:09:45,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:09:45,037 INFO L225 Difference]: With dead ends: 210 [2018-03-28 13:09:45,037 INFO L226 Difference]: Without dead ends: 124 [2018-03-28 13:09:45,038 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 45 SyntacticMatches, 5 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2018-03-28 13:09:45,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-03-28 13:09:45,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 117. [2018-03-28 13:09:45,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2018-03-28 13:09:45,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 122 transitions. [2018-03-28 13:09:45,051 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 122 transitions. Word has length 29 [2018-03-28 13:09:45,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:09:45,052 INFO L459 AbstractCegarLoop]: Abstraction has 117 states and 122 transitions. [2018-03-28 13:09:45,052 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-03-28 13:09:45,052 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 122 transitions. [2018-03-28 13:09:45,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-03-28 13:09:45,053 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:09:45,054 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:09:45,055 INFO L408 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__barErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__barErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr3RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 13:09:45,055 INFO L82 PathProgramCache]: Analyzing trace with hash -666706721, now seen corresponding path program 1 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 [2018-03-28 13:09:45,072 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:09:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:09:45,095 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:09:45,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:09:45,109 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:09:45,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:09:45,226 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 13:09:45,226 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2018-03-28 13:09:45,227 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-03-28 13:09:45,227 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-03-28 13:09:45,227 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-03-28 13:09:45,227 INFO L87 Difference]: Start difference. First operand 117 states and 122 transitions. Second operand 5 states. [2018-03-28 13:09:45,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:09:45,286 INFO L93 Difference]: Finished difference Result 204 states and 216 transitions. [2018-03-28 13:09:45,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-03-28 13:09:45,287 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2018-03-28 13:09:45,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:09:45,290 INFO L225 Difference]: With dead ends: 204 [2018-03-28 13:09:45,291 INFO L226 Difference]: Without dead ends: 124 [2018-03-28 13:09:45,292 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-03-28 13:09:45,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-03-28 13:09:45,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 120. [2018-03-28 13:09:45,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2018-03-28 13:09:45,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 125 transitions. [2018-03-28 13:09:45,303 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 125 transitions. Word has length 41 [2018-03-28 13:09:45,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:09:45,303 INFO L459 AbstractCegarLoop]: Abstraction has 120 states and 125 transitions. [2018-03-28 13:09:45,303 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-03-28 13:09:45,303 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 125 transitions. [2018-03-28 13:09:45,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-03-28 13:09:45,304 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:09:45,305 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:09:45,305 INFO L408 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__barErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__barErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr3RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 13:09:45,305 INFO L82 PathProgramCache]: Analyzing trace with hash -699612892, now seen corresponding path program 1 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 [2018-03-28 13:09:45,317 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:09:45,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:09:45,351 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:09:45,376 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 [2018-03-28 13:09:45,378 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:09:45,380 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:09:45,380 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-03-28 13:09:45,414 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:09:45,415 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 [2018-03-28 13:09:45,416 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:09:45,423 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. [2018-03-28 13:09:45,423 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-03-28 13:09:45,466 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~#a~0.base| Int)) (and (= 0 (select |c_old(#valid)| |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~#a~0.base|)) (= |c_#valid| (store |c_old(#valid)| |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~#a~0.base| 0)))) is different from true [2018-03-28 13:09:45,476 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:09:45,477 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:09:45,478 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-03-28 13:09:45,479 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:09:45,496 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. [2018-03-28 13:09:45,496 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:11 [2018-03-28 13:09:45,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:09:45,526 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:09:45,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:09:45,755 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 13:09:45,755 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-03-28 13:09:45,756 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-03-28 13:09:45,757 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-03-28 13:09:45,758 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=79, Unknown=1, NotChecked=18, Total=132 [2018-03-28 13:09:45,758 INFO L87 Difference]: Start difference. First operand 120 states and 125 transitions. Second operand 12 states. [2018-03-28 13:09:46,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:09:46,820 INFO L93 Difference]: Finished difference Result 122 states and 127 transitions. [2018-03-28 13:09:46,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-03-28 13:09:46,820 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 41 [2018-03-28 13:09:46,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:09:46,821 INFO L225 Difference]: With dead ends: 122 [2018-03-28 13:09:46,822 INFO L226 Difference]: Without dead ends: 119 [2018-03-28 13:09:46,822 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 71 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=4, NotChecked=34, Total=380 [2018-03-28 13:09:46,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2018-03-28 13:09:46,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 117. [2018-03-28 13:09:46,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2018-03-28 13:09:46,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 122 transitions. [2018-03-28 13:09:46,836 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 122 transitions. Word has length 41 [2018-03-28 13:09:46,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:09:46,836 INFO L459 AbstractCegarLoop]: Abstraction has 117 states and 122 transitions. [2018-03-28 13:09:46,836 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-03-28 13:09:46,836 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 122 transitions. [2018-03-28 13:09:46,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-03-28 13:09:46,837 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:09:46,838 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:09:46,838 INFO L408 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__barErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__barErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr3RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 13:09:46,838 INFO L82 PathProgramCache]: Analyzing trace with hash -699612891, now seen corresponding path program 1 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 [2018-03-28 13:09:46,845 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:09:46,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:09:46,876 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:09:46,893 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 [2018-03-28 13:09:46,894 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:09:46,901 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 [2018-03-28 13:09:46,902 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:09:46,906 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:09:46,907 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-03-28 13:09:46,954 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~#a~0.base| Int) (__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~n Int)) (and (= 0 (select |c_old(#valid)| |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~#a~0.base|)) (= |c_#length| (store |c_old(#length)| |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~#a~0.base| (* 4 __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~n))))) is different from true [2018-03-28 13:09:46,964 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 8 treesize of output 7 [2018-03-28 13:09:46,965 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:09:46,972 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 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 5 treesize of output 1 [2018-03-28 13:09:46,973 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:09:46,975 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-03-28 13:09:46,975 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:14, output treesize:7 [2018-03-28 13:09:47,001 WARN L1033 $PredicateComparison]: unable to prove that (and (exists ((v_prenex_2 Int) (v_prenex_1 Int)) (and (= (store |c_old(#length)| v_prenex_1 (* 4 v_prenex_2)) |c_#length|) (= 0 (select |c_old(#valid)| v_prenex_1)))) (exists ((|__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~#a~0.base| Int) (__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~n Int)) (= (select |c_#length| |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~#a~0.base|) (* 4 __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~n)))) is different from true [2018-03-28 13:09:47,025 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:09:47,026 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:09:47,027 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-03-28 13:09:47,027 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:09:47,051 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 14 treesize of output 17 [2018-03-28 13:09:47,052 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:09:47,064 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-03-28 13:09:47,065 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:40, output treesize:33 [2018-03-28 13:09:47,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:09:47,111 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:09:47,227 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 15 [2018-03-28 13:09:55,332 WARN L151 SmtUtils]: Spent 8064ms on a formula simplification. DAG size of input: 71 DAG size of output 31 [2018-03-28 13:09:55,396 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-03-28 13:09:55,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:09:55,693 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 13:09:55,694 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 7] imperfect sequences [] total 15 [2018-03-28 13:09:55,694 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-03-28 13:09:55,694 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-03-28 13:09:55,694 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=142, Unknown=2, NotChecked=50, Total=240 [2018-03-28 13:09:55,695 INFO L87 Difference]: Start difference. First operand 117 states and 122 transitions. Second operand 16 states. [2018-03-28 13:09:56,020 WARN L151 SmtUtils]: Spent 199ms on a formula simplification. DAG size of input: 52 DAG size of output 48 [2018-03-28 13:09:56,183 WARN L151 SmtUtils]: Spent 139ms on a formula simplification. DAG size of input: 56 DAG size of output 52 [2018-03-28 13:10:00,964 WARN L151 SmtUtils]: Spent 872ms on a formula simplification. DAG size of input: 54 DAG size of output 50 [2018-03-28 13:10:05,742 WARN L151 SmtUtils]: Spent 2160ms on a formula simplification. DAG size of input: 47 DAG size of output 43 [2018-03-28 13:10:21,288 WARN L148 SmtUtils]: Spent 2030ms on a formula simplification that was a NOOP. DAG size: 37 [2018-03-28 13:10:21,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:10:21,815 INFO L93 Difference]: Finished difference Result 185 states and 206 transitions. [2018-03-28 13:10:21,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-03-28 13:10:21,816 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 41 [2018-03-28 13:10:21,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:10:21,817 INFO L225 Difference]: With dead ends: 185 [2018-03-28 13:10:21,818 INFO L226 Difference]: Without dead ends: 183 [2018-03-28 13:10:21,818 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 15.8s TimeCoverageRelationStatistics Valid=188, Invalid=618, Unknown=14, NotChecked=110, Total=930 [2018-03-28 13:10:21,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2018-03-28 13:10:21,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 129. [2018-03-28 13:10:21,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2018-03-28 13:10:21,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 135 transitions. [2018-03-28 13:10:21,834 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 135 transitions. Word has length 41 [2018-03-28 13:10:21,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:10:21,835 INFO L459 AbstractCegarLoop]: Abstraction has 129 states and 135 transitions. [2018-03-28 13:10:21,835 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-03-28 13:10:21,835 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 135 transitions. [2018-03-28 13:10:21,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-03-28 13:10:21,837 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:10:21,837 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:10:21,837 INFO L408 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__barErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__barErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr3RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 13:10:21,838 INFO L82 PathProgramCache]: Analyzing trace with hash 521847270, now seen corresponding path program 1 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 [2018-03-28 13:10:21,844 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:10:21,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:10:21,875 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:10:21,882 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 [2018-03-28 13:10:21,883 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:10:21,889 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 [2018-03-28 13:10:21,890 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:10:21,894 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:10:21,894 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-03-28 13:10:21,913 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~#a~0.base| Int) (__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~n Int)) (and (= 0 (select |c_old(#valid)| |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~#a~0.base|)) (= |c_#length| (store |c_old(#length)| |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~#a~0.base| (* 4 __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~n))))) is different from true [2018-03-28 13:10:21,925 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 8 treesize of output 7 [2018-03-28 13:10:21,926 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:10:21,956 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 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 5 treesize of output 1 [2018-03-28 13:10:21,956 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:10:21,958 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-03-28 13:10:21,958 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:14, output treesize:7 [2018-03-28 13:10:22,018 WARN L1033 $PredicateComparison]: unable to prove that (and (exists ((|__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~#a~0.base| Int) (__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~n Int)) (= (select |c_#length| |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~#a~0.base|) (* 4 __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~n))) (exists ((v_prenex_16 Int) (v_prenex_17 Int)) (and (= 0 (select |c_old(#valid)| v_prenex_16)) (= (store |c_old(#length)| v_prenex_16 (* 4 v_prenex_17)) |c_#length|)))) is different from true [2018-03-28 13:10:22,030 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:10:22,032 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 14 treesize of output 17 [2018-03-28 13:10:22,033 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:10:22,046 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:10:22,047 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:10:22,048 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-03-28 13:10:22,048 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:10:22,056 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-03-28 13:10:22,056 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:34, output treesize:27 [2018-03-28 13:10:22,262 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:10:22,273 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 32 [2018-03-28 13:10:22,274 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2018-03-28 13:10:22,323 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:10:22,324 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:10:22,325 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-03-28 13:10:22,325 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:10:22,343 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 6 dim-0 vars, and 2 xjuncts. [2018-03-28 13:10:22,343 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:38, output treesize:52 [2018-03-28 13:10:22,629 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2018-03-28 13:10:22,629 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:10:22,994 WARN L148 SmtUtils]: Spent 126ms on a formula simplification that was a NOOP. DAG size: 26 [2018-03-28 13:10:23,004 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 13:10:23,004 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 13:10:23,005 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 7 [2018-03-28 13:10:23,005 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:10:23,031 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 13:10:23,032 INFO L682 Elim1Store]: detected equality via solver [2018-03-28 13:10:23,032 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 16 [2018-03-28 13:10:23,033 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:10:23,039 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-03-28 13:10:23,039 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:42, output treesize:20 [2018-03-28 13:10:25,333 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-03-28 13:10:25,349 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 27 [2018-03-28 13:10:42,740 WARN L151 SmtUtils]: Spent 14468ms on a formula simplification. DAG size of input: 99 DAG size of output 41 [2018-03-28 13:10:47,629 WARN L151 SmtUtils]: Spent 319ms on a formula simplification. DAG size of input: 39 DAG size of output 34 [2018-03-28 13:10:50,836 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:10:50,871 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:10:50,871 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 22 [2018-03-28 13:10:50,872 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-03-28 13:10:50,872 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-03-28 13:10:50,873 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=353, Unknown=7, NotChecked=78, Total=506 [2018-03-28 13:10:50,873 INFO L87 Difference]: Start difference. First operand 129 states and 135 transitions. Second operand 23 states. [2018-03-28 13:11:30,124 WARN L151 SmtUtils]: Spent 26572ms on a formula simplification. DAG size of input: 70 DAG size of output 66 [2018-03-28 13:11:53,771 WARN L148 SmtUtils]: Spent 10288ms on a formula simplification that was a NOOP. DAG size: 67 [2018-03-28 13:12:18,464 WARN L148 SmtUtils]: Spent 20343ms on a formula simplification that was a NOOP. DAG size: 76 [2018-03-28 13:12:25,638 WARN L151 SmtUtils]: Spent 962ms on a formula simplification. DAG size of input: 48 DAG size of output 21 Received shutdown request... [2018-03-28 13:12:28,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-03-28 13:12:28,698 WARN L519 AbstractCegarLoop]: Verification canceled [2018-03-28 13:12:28,701 WARN L197 ceAbstractionStarter]: Timeout [2018-03-28 13:12:28,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 01:12:28 BoogieIcfgContainer [2018-03-28 13:12:28,702 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-03-28 13:12:28,703 INFO L168 Benchmark]: Toolchain (without parser) took 165628.33 ms. Allocated memory was 300.4 MB in the beginning and 531.6 MB in the end (delta: 231.2 MB). Free memory was 243.6 MB in the beginning and 416.1 MB in the end (delta: -172.6 MB). Peak memory consumption was 58.7 MB. Max. memory is 5.3 GB. [2018-03-28 13:12:28,704 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 300.4 MB. Free memory is still 261.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-03-28 13:12:28,704 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.15 ms. Allocated memory is still 300.4 MB. Free memory was 243.6 MB in the beginning and 231.6 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 5.3 GB. [2018-03-28 13:12:28,705 INFO L168 Benchmark]: Boogie Preprocessor took 35.89 ms. Allocated memory is still 300.4 MB. Free memory is still 231.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-03-28 13:12:28,705 INFO L168 Benchmark]: RCFGBuilder took 385.11 ms. Allocated memory was 300.4 MB in the beginning and 457.2 MB in the end (delta: 156.8 MB). Free memory was 231.6 MB in the beginning and 418.9 MB in the end (delta: -187.3 MB). Peak memory consumption was 26.9 MB. Max. memory is 5.3 GB. [2018-03-28 13:12:28,705 INFO L168 Benchmark]: TraceAbstraction took 164925.75 ms. Allocated memory was 457.2 MB in the beginning and 531.6 MB in the end (delta: 74.4 MB). Free memory was 418.9 MB in the beginning and 416.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 77.2 MB. Max. memory is 5.3 GB. [2018-03-28 13:12:28,707 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 300.4 MB. Free memory is still 261.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 275.15 ms. Allocated memory is still 300.4 MB. Free memory was 243.6 MB in the beginning and 231.6 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 35.89 ms. Allocated memory is still 300.4 MB. Free memory is still 231.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * RCFGBuilder took 385.11 ms. Allocated memory was 300.4 MB in the beginning and 457.2 MB in the end (delta: 156.8 MB). Free memory was 231.6 MB in the beginning and 418.9 MB in the end (delta: -187.3 MB). Peak memory consumption was 26.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 164925.75 ms. Allocated memory was 457.2 MB in the beginning and 531.6 MB in the end (delta: 74.4 MB). Free memory was 418.9 MB in the beginning and 416.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 77.2 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 14]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 14). Cancelled while BasicCegarLoop was constructing difference of abstraction (129states) and interpolant automaton (currently 7 states, 23 states before enhancement), while PredicateComparison was comparing new predicate (quantified with 1quantifier alternations) to 27 known predicates. - TimeoutResultAtElement [Line: 14]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 14). Cancelled while BasicCegarLoop was constructing difference of abstraction (129states) and interpolant automaton (currently 7 states, 23 states before enhancement), while PredicateComparison was comparing new predicate (quantified with 1quantifier alternations) to 27 known predicates. - TimeoutResultAtElement [Line: 23]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 23). Cancelled while BasicCegarLoop was constructing difference of abstraction (129states) and interpolant automaton (currently 7 states, 23 states before enhancement), while PredicateComparison was comparing new predicate (quantified with 1quantifier alternations) to 27 known predicates. - TimeoutResultAtElement [Line: 23]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 23). Cancelled while BasicCegarLoop was constructing difference of abstraction (129states) and interpolant automaton (currently 7 states, 23 states before enhancement), while PredicateComparison was comparing new predicate (quantified with 1quantifier alternations) to 27 known predicates. - TimeoutResultAtElement [Line: 23]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 23). Cancelled while BasicCegarLoop was constructing difference of abstraction (129states) and interpolant automaton (currently 7 states, 23 states before enhancement), while PredicateComparison was comparing new predicate (quantified with 1quantifier alternations) to 27 known predicates. - TimeoutResultAtElement [Line: 23]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 23). Cancelled while BasicCegarLoop was constructing difference of abstraction (129states) and interpolant automaton (currently 7 states, 23 states before enhancement), while PredicateComparison was comparing new predicate (quantified with 1quantifier alternations) to 27 known predicates. - TimeoutResultAtElement [Line: 37]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 37). Cancelled while BasicCegarLoop was constructing difference of abstraction (129states) and interpolant automaton (currently 7 states, 23 states before enhancement), while PredicateComparison was comparing new predicate (quantified with 1quantifier alternations) to 27 known predicates. - TimeoutResultAtElement [Line: 34]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 34). Cancelled while BasicCegarLoop was constructing difference of abstraction (129states) and interpolant automaton (currently 7 states, 23 states before enhancement), while PredicateComparison was comparing new predicate (quantified with 1quantifier alternations) to 27 known predicates. - TimeoutResultAtElement [Line: 37]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 37). Cancelled while BasicCegarLoop was constructing difference of abstraction (129states) and interpolant automaton (currently 7 states, 23 states before enhancement), while PredicateComparison was comparing new predicate (quantified with 1quantifier alternations) to 27 known predicates. - TimeoutResultAtElement [Line: 31]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 31). Cancelled while BasicCegarLoop was constructing difference of abstraction (129states) and interpolant automaton (currently 7 states, 23 states before enhancement), while PredicateComparison was comparing new predicate (quantified with 1quantifier alternations) to 27 known predicates. - TimeoutResultAtElement [Line: 34]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 34). Cancelled while BasicCegarLoop was constructing difference of abstraction (129states) and interpolant automaton (currently 7 states, 23 states before enhancement), while PredicateComparison was comparing new predicate (quantified with 1quantifier alternations) to 27 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 89 locations, 11 error locations. TIMEOUT Result, 164.8s OverallTime, 8 OverallIterations, 2 TraceHistogramMax, 125.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 549 SDtfs, 702 SDslu, 1515 SDs, 0 SdLazy, 817 SolverSat, 115 SolverUnsat, 24 SolverUnknown, 0 SolverNotchecked, 42.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 547 GetRequests, 441 SyntacticMatches, 10 SemanticMatches, 95 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 116.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=129occurred 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: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 82 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 38.5s InterpolantComputationTime, 259 NumberOfCodeBlocks, 259 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 502 ConstructedInterpolants, 157 QuantifiedInterpolants, 242626 SizeOfPredicates, 29 NumberOfNonLiveVariables, 758 ConjunctsInSsa, 75 ConjunctsInUnsatCore, 16 InterpolantComputations, 14 PerfectInterpolantSequences, 6/22 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength2_true-valid-memsafety.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-03-28_13-12-28-715.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength2_true-valid-memsafety.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-03-28_13-12-28-715.csv Completed graceful shutdown