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 --cacsl2boogietranslator.bitprecise.bitfields false -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength4_true-valid-memsafety_true-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-408c70d-m [2018-04-13 15:12:17,257 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-13 15:12:17,259 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-13 15:12:17,272 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-13 15:12:17,272 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-13 15:12:17,273 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-13 15:12:17,274 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-13 15:12:17,275 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-13 15:12:17,277 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-13 15:12:17,277 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-13 15:12:17,278 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-13 15:12:17,278 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-13 15:12:17,279 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-13 15:12:17,280 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-13 15:12:17,281 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-13 15:12:17,282 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-13 15:12:17,284 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-13 15:12:17,285 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-13 15:12:17,286 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-13 15:12:17,287 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-13 15:12:17,289 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-13 15:12:17,289 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-13 15:12:17,289 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-13 15:12:17,290 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-13 15:12:17,290 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-13 15:12:17,291 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-13 15:12:17,291 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-13 15:12:17,292 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-13 15:12:17,293 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-13 15:12:17,293 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-13 15:12:17,293 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-13 15:12:17,293 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf [2018-04-13 15:12:17,303 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-13 15:12:17,304 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-13 15:12:17,304 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-13 15:12:17,305 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-13 15:12:17,305 INFO L133 SettingsManager]: * Use SBE=true [2018-04-13 15:12:17,305 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-13 15:12:17,305 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-13 15:12:17,305 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-13 15:12:17,305 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-13 15:12:17,305 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-13 15:12:17,306 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-13 15:12:17,306 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-13 15:12:17,306 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-13 15:12:17,306 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-13 15:12:17,306 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-13 15:12:17,306 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-13 15:12:17,307 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-13 15:12:17,307 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-13 15:12:17,307 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-13 15:12:17,307 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-13 15:12:17,307 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-13 15:12:17,307 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-04-13 15:12:17,307 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-04-13 15:12:17,308 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-04-13 15:12:17,336 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-13 15:12:17,348 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-13 15:12:17,352 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-13 15:12:17,353 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-13 15:12:17,353 INFO L276 PluginConnector]: CDTParser initialized [2018-04-13 15:12:17,354 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength4_true-valid-memsafety_true-termination.c [2018-04-13 15:12:17,652 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGd63caed50 [2018-04-13 15:12:17,748 INFO L287 CDTParser]: IsIndexed: true [2018-04-13 15:12:17,749 INFO L288 CDTParser]: Found 1 translation units. [2018-04-13 15:12:17,749 INFO L168 CDTParser]: Scanning ArraysOfVariableLength4_true-valid-memsafety_true-termination.c [2018-04-13 15:12:17,750 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-13 15:12:17,750 INFO L215 ultiparseSymbolTable]: [2018-04-13 15:12:17,750 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-13 15:12:17,750 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo ('foo') in ArraysOfVariableLength4_true-valid-memsafety_true-termination.c [2018-04-13 15:12:17,750 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in ArraysOfVariableLength4_true-valid-memsafety_true-termination.c [2018-04-13 15:12:17,750 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-13 15:12:17,750 INFO L233 ultiparseSymbolTable]: [2018-04-13 15:12:17,762 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGd63caed50 [2018-04-13 15:12:17,765 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-13 15:12:17,766 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-13 15:12:17,766 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-13 15:12:17,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-13 15:12:17,770 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-13 15:12:17,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 03:12:17" (1/1) ... [2018-04-13 15:12:17,773 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@431d102f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:12:17, skipping insertion in model container [2018-04-13 15:12:17,773 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 03:12:17" (1/1) ... [2018-04-13 15:12:17,785 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-13 15:12:17,794 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-13 15:12:17,886 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-13 15:12:17,905 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-13 15:12:17,909 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 9 non ball SCCs. Number of states in SCCs 9. [2018-04-13 15:12:17,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:12:17 WrapperNode [2018-04-13 15:12:17,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-13 15:12:17,916 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-13 15:12:17,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-13 15:12:17,916 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-13 15:12:17,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:12:17" (1/1) ... [2018-04-13 15:12:17,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:12:17" (1/1) ... [2018-04-13 15:12:17,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:12:17" (1/1) ... [2018-04-13 15:12:17,931 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:12:17" (1/1) ... [2018-04-13 15:12:17,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:12:17" (1/1) ... [2018-04-13 15:12:17,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:12:17" (1/1) ... [2018-04-13 15:12:17,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:12:17" (1/1) ... [2018-04-13 15:12:17,940 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-13 15:12:17,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-13 15:12:17,941 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-13 15:12:17,941 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-13 15:12:17,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:12:17" (1/1) ... No working directory specified, using /home/ultimate/work/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 [2018-04-13 15:12:17,975 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-13 15:12:17,976 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-13 15:12:17,976 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo [2018-04-13 15:12:17,976 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-13 15:12:17,976 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo [2018-04-13 15:12:17,976 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-13 15:12:17,976 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-13 15:12:17,976 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-13 15:12:17,976 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-13 15:12:17,976 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-13 15:12:17,976 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-13 15:12:17,976 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-13 15:12:17,976 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-13 15:12:18,166 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-13 15:12:18,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 03:12:18 BoogieIcfgContainer [2018-04-13 15:12:18,166 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-13 15:12:18,167 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-13 15:12:18,167 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-13 15:12:18,168 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-13 15:12:18,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.04 03:12:17" (1/3) ... [2018-04-13 15:12:18,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49190407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 03:12:18, skipping insertion in model container [2018-04-13 15:12:18,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:12:17" (2/3) ... [2018-04-13 15:12:18,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49190407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 03:12:18, skipping insertion in model container [2018-04-13 15:12:18,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 03:12:18" (3/3) ... [2018-04-13 15:12:18,171 INFO L107 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength4_true-valid-memsafety_true-termination.c [2018-04-13 15:12:18,179 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-04-13 15:12:18,193 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-04-13 15:12:18,221 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-13 15:12:18,221 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-13 15:12:18,221 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-13 15:12:18,221 INFO L371 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-04-13 15:12:18,222 INFO L372 AbstractCegarLoop]: Backedges is CANONICAL [2018-04-13 15:12:18,222 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-13 15:12:18,222 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-13 15:12:18,222 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-13 15:12:18,222 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-13 15:12:18,223 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-13 15:12:18,231 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2018-04-13 15:12:18,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-04-13 15:12:18,237 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:12:18,237 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 15:12:18,238 INFO L408 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:12:18,240 INFO L82 PathProgramCache]: Analyzing trace with hash -215054890, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/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 [2018-04-13 15:12:18,248 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:12:18,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:12:18,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:12:18,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:12:18,336 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 15:12:18,336 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-13 15:12:18,337 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:12:18,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:12:18,337 INFO L182 omatonBuilderFactory]: Interpolants [49#true, 50#false, 54#(and (<= 0 main_~i~1) (< main_~i~1 100)), 55#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-04-13 15:12:18,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:12:18,338 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-13 15:12:18,345 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-13 15:12:18,345 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-13 15:12:18,347 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 4 states. [2018-04-13 15:12:18,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:12:18,495 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2018-04-13 15:12:18,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-13 15:12:18,497 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-04-13 15:12:18,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:12:18,504 INFO L225 Difference]: With dead ends: 59 [2018-04-13 15:12:18,505 INFO L226 Difference]: Without dead ends: 55 [2018-04-13 15:12:18,506 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-13 15:12:18,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-04-13 15:12:18,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 49. [2018-04-13 15:12:18,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-04-13 15:12:18,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2018-04-13 15:12:18,531 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 11 [2018-04-13 15:12:18,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:12:18,531 INFO L459 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2018-04-13 15:12:18,531 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-13 15:12:18,531 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2018-04-13 15:12:18,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-04-13 15:12:18,532 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:12:18,532 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 15:12:18,532 INFO L408 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:12:18,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1100032001, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/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 [2018-04-13 15:12:18,535 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:12:18,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:12:18,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:12:18,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:12:18,574 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 15:12:18,575 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-13 15:12:18,575 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:12:18,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:12:18,576 INFO L182 omatonBuilderFactory]: Interpolants [166#true, 167#false, 171#(and (<= 0 __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0) (< __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0 32)), 172#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-04-13 15:12:18,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:12:18,577 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-13 15:12:18,577 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-13 15:12:18,577 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-13 15:12:18,577 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand 4 states. [2018-04-13 15:12:18,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:12:18,647 INFO L93 Difference]: Finished difference Result 55 states and 61 transitions. [2018-04-13 15:12:18,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-13 15:12:18,647 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-04-13 15:12:18,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:12:18,650 INFO L225 Difference]: With dead ends: 55 [2018-04-13 15:12:18,650 INFO L226 Difference]: Without dead ends: 55 [2018-04-13 15:12:18,650 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-13 15:12:18,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-04-13 15:12:18,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 52. [2018-04-13 15:12:18,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-04-13 15:12:18,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 58 transitions. [2018-04-13 15:12:18,655 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 58 transitions. Word has length 16 [2018-04-13 15:12:18,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:12:18,656 INFO L459 AbstractCegarLoop]: Abstraction has 52 states and 58 transitions. [2018-04-13 15:12:18,656 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-13 15:12:18,656 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 58 transitions. [2018-04-13 15:12:18,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-04-13 15:12:18,656 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:12:18,657 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 15:12:18,657 INFO L408 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:12:18,657 INFO L82 PathProgramCache]: Analyzing trace with hash -258746290, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/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 [2018-04-13 15:12:18,660 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:12:18,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:12:18,692 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-04-13 15:12:18,693 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 78 column 366: Sort mismatch at argument #1 for function (declare-fun >= (Int Int) Bool) supplied sort is Bool at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1420) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseInterpolants(Executor.java:255) at de.uni_freiburg.informatik.ultimate.smtsolver.external.ScriptorWithGetInterpolants.readInterpolants(ScriptorWithGetInterpolants.java:136) at de.uni_freiburg.informatik.ultimate.smtsolver.external.ScriptorWithGetInterpolants.getInterpolants(ScriptorWithGetInterpolants.java:64) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.getInterpolants(DiffWrapperScript.java:260) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:186) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:283) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:298) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.FixedRefinementStrategy.getTraceCheck(FixedRefinementStrategy.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:408) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:417) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:363) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:119) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-04-13 15:12:18,696 INFO L168 Benchmark]: Toolchain (without parser) took 930.85 ms. Allocated memory was 403.2 MB in the beginning and 613.4 MB in the end (delta: 210.2 MB). Free memory was 345.6 MB in the beginning and 515.0 MB in the end (delta: -169.4 MB). Peak memory consumption was 40.8 MB. Max. memory is 5.3 GB. [2018-04-13 15:12:18,697 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 403.2 MB. Free memory is still 366.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-13 15:12:18,698 INFO L168 Benchmark]: CACSL2BoogieTranslator took 149.68 ms. Allocated memory is still 403.2 MB. Free memory was 345.6 MB in the beginning and 335.0 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-04-13 15:12:18,698 INFO L168 Benchmark]: Boogie Preprocessor took 23.87 ms. Allocated memory is still 403.2 MB. Free memory was 335.0 MB in the beginning and 333.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-04-13 15:12:18,699 INFO L168 Benchmark]: RCFGBuilder took 225.78 ms. Allocated memory was 403.2 MB in the beginning and 613.4 MB in the end (delta: 210.2 MB). Free memory was 333.6 MB in the beginning and 577.7 MB in the end (delta: -244.0 MB). Peak memory consumption was 24.7 MB. Max. memory is 5.3 GB. [2018-04-13 15:12:18,699 INFO L168 Benchmark]: TraceAbstraction took 528.83 ms. Allocated memory is still 613.4 MB. Free memory was 576.0 MB in the beginning and 515.0 MB in the end (delta: 61.1 MB). Peak memory consumption was 61.1 MB. Max. memory is 5.3 GB. [2018-04-13 15:12:18,701 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 403.2 MB. Free memory is still 366.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 149.68 ms. Allocated memory is still 403.2 MB. Free memory was 345.6 MB in the beginning and 335.0 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 23.87 ms. Allocated memory is still 403.2 MB. Free memory was 335.0 MB in the beginning and 333.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 225.78 ms. Allocated memory was 403.2 MB in the beginning and 613.4 MB in the end (delta: 210.2 MB). Free memory was 333.6 MB in the beginning and 577.7 MB in the end (delta: -244.0 MB). Peak memory consumption was 24.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 528.83 ms. Allocated memory is still 613.4 MB. Free memory was 576.0 MB in the beginning and 515.0 MB in the end (delta: 61.1 MB). Peak memory consumption was 61.1 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: line 78 column 366: Sort mismatch at argument #1 for function (declare-fun >= (Int Int) Bool) supplied sort is Bool de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: line 78 column 366: Sort mismatch at argument #1 for function (declare-fun >= (Int Int) Bool) supplied sort is Bool: de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1420) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength4_true-valid-memsafety_true-termination.c_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-13_15-12-18-710.csv Received shutdown request...