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/ArraysOfVariableLength2_true-valid-memsafety.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-11 18:28:16,694 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 18:28:16,695 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 18:28:16,706 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-11 18:28:16,706 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-11 18:28:16,707 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-11 18:28:16,708 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-11 18:28:16,709 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-11 18:28:16,711 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-11 18:28:16,711 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-11 18:28:16,712 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-11 18:28:16,712 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-11 18:28:16,713 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-11 18:28:16,714 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-11 18:28:16,715 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-11 18:28:16,717 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-11 18:28:16,718 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-11 18:28:16,720 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-11 18:28:16,721 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-11 18:28:16,722 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-11 18:28:16,723 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-11 18:28:16,724 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-11 18:28:16,724 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-11 18:28:16,725 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-11 18:28:16,725 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-11 18:28:16,726 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-11 18:28:16,726 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-11 18:28:16,727 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-11 18:28:16,728 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-11 18:28:16,728 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-11 18:28:16,728 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-11 18:28:16,729 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 [2018-04-11 18:28:16,750 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 18:28:16,750 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 18:28:16,751 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-11 18:28:16,752 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-11 18:28:16,752 INFO L133 SettingsManager]: * Use SBE=true [2018-04-11 18:28:16,752 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 18:28:16,752 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 18:28:16,752 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 18:28:16,752 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 18:28:16,753 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 18:28:16,753 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 18:28:16,753 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 18:28:16,753 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-11 18:28:16,753 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 18:28:16,753 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 18:28:16,754 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 18:28:16,754 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-11 18:28:16,754 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-11 18:28:16,754 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 18:28:16,754 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 18:28:16,754 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 18:28:16,754 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-04-11 18:28:16,755 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-04-11 18:28:16,755 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 [2018-04-11 18:28:16,785 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 18:28:16,796 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 18:28:16,799 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 18:28:16,800 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 18:28:16,801 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 18:28:16,801 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength2_true-valid-memsafety.c [2018-04-11 18:28:17,098 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG4c32c2179 [2018-04-11 18:28:17,187 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 18:28:17,187 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 18:28:17,187 INFO L168 CDTParser]: Scanning ArraysOfVariableLength2_true-valid-memsafety.c [2018-04-11 18:28:17,188 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 18:28:17,188 INFO L215 ultiparseSymbolTable]: [2018-04-11 18:28:17,188 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 18:28:17,188 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo ('foo') in ArraysOfVariableLength2_true-valid-memsafety.c [2018-04-11 18:28:17,188 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in ArraysOfVariableLength2_true-valid-memsafety.c [2018-04-11 18:28:17,188 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__bar ('bar') in ArraysOfVariableLength2_true-valid-memsafety.c [2018-04-11 18:28:17,188 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-11 18:28:17,188 INFO L233 ultiparseSymbolTable]: [2018-04-11 18:28:17,199 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG4c32c2179 [2018-04-11 18:28:17,203 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 18:28:17,204 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 18:28:17,205 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 18:28:17,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 18:28:17,209 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 18:28:17,210 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 06:28:17" (1/1) ... [2018-04-11 18:28:17,212 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e500b45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 06:28:17, skipping insertion in model container [2018-04-11 18:28:17,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 06:28:17" (1/1) ... [2018-04-11 18:28:17,224 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 18:28:17,235 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 18:28:17,350 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 18:28:17,373 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 18:28:17,377 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 10 non ball SCCs. Number of states in SCCs 10. [2018-04-11 18:28:17,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 06:28:17 WrapperNode [2018-04-11 18:28:17,386 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 18:28:17,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 18:28:17,386 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 18:28:17,386 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 18:28:17,395 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 06:28:17" (1/1) ... [2018-04-11 18:28:17,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 06:28:17" (1/1) ... [2018-04-11 18:28:17,401 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 06:28:17" (1/1) ... [2018-04-11 18:28:17,401 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 06:28:17" (1/1) ... [2018-04-11 18:28:17,404 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 06:28:17" (1/1) ... [2018-04-11 18:28:17,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 06:28:17" (1/1) ... [2018-04-11 18:28:17,408 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 06:28:17" (1/1) ... [2018-04-11 18:28:17,409 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 18:28:17,410 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 18:28:17,410 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 18:28:17,410 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 18:28:17,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 06:28:17" (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 [2018-04-11 18:28:17,443 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 18:28:17,443 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 18:28:17,443 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__bar [2018-04-11 18:28:17,443 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo [2018-04-11 18:28:17,443 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 18:28:17,443 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__bar [2018-04-11 18:28:17,444 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-11 18:28:17,444 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo [2018-04-11 18:28:17,444 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 18:28:17,444 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-11 18:28:17,444 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 18:28:17,444 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 18:28:17,444 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 18:28:17,444 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 18:28:17,444 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-11 18:28:17,655 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 18:28:17,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 06:28:17 BoogieIcfgContainer [2018-04-11 18:28:17,656 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 18:28:17,656 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 18:28:17,656 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 18:28:17,658 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 18:28:17,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 06:28:17" (1/3) ... [2018-04-11 18:28:17,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fc53112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 06:28:17, skipping insertion in model container [2018-04-11 18:28:17,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 06:28:17" (2/3) ... [2018-04-11 18:28:17,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fc53112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 06:28:17, skipping insertion in model container [2018-04-11 18:28:17,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 06:28:17" (3/3) ... [2018-04-11 18:28:17,660 INFO L107 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength2_true-valid-memsafety.c [2018-04-11 18:28:17,667 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-04-11 18:28:17,674 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-04-11 18:28:17,708 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 18:28:17,708 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 18:28:17,708 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-11 18:28:17,708 INFO L371 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-04-11 18:28:17,708 INFO L372 AbstractCegarLoop]: Backedges is CANONICAL [2018-04-11 18:28:17,708 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 18:28:17,709 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 18:28:17,709 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 18:28:17,709 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 18:28:17,709 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 18:28:17,719 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2018-04-11 18:28:17,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-11 18:28:17,728 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 18:28:17,728 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 18:28:17,728 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]=== [2018-04-11 18:28:17,731 INFO L82 PathProgramCache]: Analyzing trace with hash 1613294992, 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 [2018-04-11 18:28:17,739 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 18:28:17,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 18:28:17,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 18:28:17,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 18:28:17,821 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 18:28:17,821 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 18:28:17,821 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 18:28:17,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 18:28:17,822 INFO L182 omatonBuilderFactory]: Interpolants [71#true, 72#false, 76#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-04-11 18:28:17,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 18:28:17,823 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-11 18:28:17,831 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-11 18:28:17,831 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-11 18:28:17,832 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 3 states. [2018-04-11 18:28:17,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 18:28:17,975 INFO L93 Difference]: Finished difference Result 68 states and 73 transitions. [2018-04-11 18:28:17,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-11 18:28:17,977 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-04-11 18:28:17,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 18:28:17,986 INFO L225 Difference]: With dead ends: 68 [2018-04-11 18:28:17,986 INFO L226 Difference]: Without dead ends: 65 [2018-04-11 18:28:17,987 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-11 18:28:18,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-04-11 18:28:18,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-04-11 18:28:18,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-04-11 18:28:18,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 70 transitions. [2018-04-11 18:28:18,017 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 70 transitions. Word has length 13 [2018-04-11 18:28:18,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 18:28:18,017 INFO L459 AbstractCegarLoop]: Abstraction has 65 states and 70 transitions. [2018-04-11 18:28:18,017 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-11 18:28:18,017 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 70 transitions. [2018-04-11 18:28:18,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-11 18:28:18,018 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 18:28:18,018 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 18:28:18,018 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]=== [2018-04-11 18:28:18,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1969953325, 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 [2018-04-11 18:28:18,030 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 18:28:18,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 18:28:18,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 18:28:18,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 18:28:18,067 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 18:28:18,067 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 18:28:18,067 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 18:28:18,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 18:28:18,067 INFO L182 omatonBuilderFactory]: Interpolants [210#true, 211#false, 215#(< main_~i~2 100), 216#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-04-11 18:28:18,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 18:28:18,069 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 18:28:18,069 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 18:28:18,069 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 18:28:18,069 INFO L87 Difference]: Start difference. First operand 65 states and 70 transitions. Second operand 4 states. [2018-04-11 18:28:18,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 18:28:18,169 INFO L93 Difference]: Finished difference Result 64 states and 68 transitions. [2018-04-11 18:28:18,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 18:28:18,170 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-04-11 18:28:18,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 18:28:18,171 INFO L225 Difference]: With dead ends: 64 [2018-04-11 18:28:18,171 INFO L226 Difference]: Without dead ends: 64 [2018-04-11 18:28:18,171 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 18:28:18,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-04-11 18:28:18,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-04-11 18:28:18,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-04-11 18:28:18,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2018-04-11 18:28:18,177 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 14 [2018-04-11 18:28:18,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 18:28:18,177 INFO L459 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2018-04-11 18:28:18,177 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 18:28:18,177 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2018-04-11 18:28:18,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-04-11 18:28:18,178 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 18:28:18,178 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 18:28:18,178 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]=== [2018-04-11 18:28:18,178 INFO L82 PathProgramCache]: Analyzing trace with hash -1297061679, 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 [2018-04-11 18:28:18,181 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 18:28:18,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 18:28:18,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 18:28:18,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 18:28:18,255 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 18:28:18,256 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-04-11 18:28:18,256 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 18:28:18,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 18:28:18,256 INFO L182 omatonBuilderFactory]: Interpolants [352#(= 0 __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~size), 353#(<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~size __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~1), 354#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 345#true, 346#false, 350#(= 0 main_~i~2), 351#(= 0 |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~size|)] [2018-04-11 18:28:18,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 18:28:18,256 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 18:28:18,256 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 18:28:18,257 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-11 18:28:18,257 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand 7 states. [2018-04-11 18:28:18,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 18:28:18,459 INFO L93 Difference]: Finished difference Result 85 states and 91 transitions. [2018-04-11 18:28:18,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-11 18:28:18,460 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2018-04-11 18:28:18,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 18:28:18,462 INFO L225 Difference]: With dead ends: 85 [2018-04-11 18:28:18,462 INFO L226 Difference]: Without dead ends: 85 [2018-04-11 18:28:18,463 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2018-04-11 18:28:18,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-04-11 18:28:18,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 79. [2018-04-11 18:28:18,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-04-11 18:28:18,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 85 transitions. [2018-04-11 18:28:18,471 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 85 transitions. Word has length 17 [2018-04-11 18:28:18,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 18:28:18,471 INFO L459 AbstractCegarLoop]: Abstraction has 79 states and 85 transitions. [2018-04-11 18:28:18,471 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 18:28:18,471 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 85 transitions. [2018-04-11 18:28:18,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-04-11 18:28:18,472 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 18:28:18,472 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 18:28:18,472 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]=== [2018-04-11 18:28:18,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1600184185, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 18:28:18,476 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 18:28:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 18:28:18,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 18:28:18,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 18:28:18,559 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 18:28:18,559 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-04-11 18:28:18,559 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 18:28:18,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 18:28:18,559 INFO L182 omatonBuilderFactory]: Interpolants [528#false, 532#(= 0 main_~i~2), 533#(= 0 |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~size|), 534#(= 0 __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~size), 535#(= 0 |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__bar_#in~size|), 536#(<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__bar_~size __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__bar_~i~0), 537#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 527#true] [2018-04-11 18:28:18,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 18:28:18,560 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-11 18:28:18,560 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-11 18:28:18,560 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-04-11 18:28:18,560 INFO L87 Difference]: Start difference. First operand 79 states and 85 transitions. Second operand 8 states. [2018-04-11 18:28:18,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 18:28:18,801 INFO L93 Difference]: Finished difference Result 91 states and 96 transitions. [2018-04-11 18:28:18,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-11 18:28:18,802 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2018-04-11 18:28:18,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 18:28:18,803 INFO L225 Difference]: With dead ends: 91 [2018-04-11 18:28:18,803 INFO L226 Difference]: Without dead ends: 91 [2018-04-11 18:28:18,803 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2018-04-11 18:28:18,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-04-11 18:28:18,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 85. [2018-04-11 18:28:18,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-04-11 18:28:18,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 90 transitions. [2018-04-11 18:28:18,809 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 90 transitions. Word has length 21 [2018-04-11 18:28:18,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 18:28:18,809 INFO L459 AbstractCegarLoop]: Abstraction has 85 states and 90 transitions. [2018-04-11 18:28:18,809 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-11 18:28:18,809 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 90 transitions. [2018-04-11 18:28:18,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-04-11 18:28:18,810 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 18:28:18,810 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] [2018-04-11 18:28:18,810 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]=== [2018-04-11 18:28:18,810 INFO L82 PathProgramCache]: Analyzing trace with hash 1759981910, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 18:28:18,813 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 18:28:18,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 18:28:18,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 18:28:18,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 18:28:18,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 18:28:18,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 18:28:18,869 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 18:28:18,869 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-04-11 18:28:18,869 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 18:28:18,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 18:28:18,870 INFO L182 omatonBuilderFactory]: Interpolants [757#(= |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#t~ret4| 0), 726#true, 758#(= 0 __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__bar_~res~0), 727#false, 759#(= 0 |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__bar_#res|), 749#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 750#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))] [2018-04-11 18:28:18,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 18:28:18,870 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 18:28:18,870 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 18:28:18,870 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-11 18:28:18,871 INFO L87 Difference]: Start difference. First operand 85 states and 90 transitions. Second operand 7 states. [2018-04-11 18:28:19,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 18:28:19,008 INFO L93 Difference]: Finished difference Result 94 states and 99 transitions. [2018-04-11 18:28:19,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 18:28:19,008 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2018-04-11 18:28:19,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 18:28:19,010 INFO L225 Difference]: With dead ends: 94 [2018-04-11 18:28:19,010 INFO L226 Difference]: Without dead ends: 94 [2018-04-11 18:28:19,012 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-04-11 18:28:19,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2018-04-11 18:28:19,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 90. [2018-04-11 18:28:19,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2018-04-11 18:28:19,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 95 transitions. [2018-04-11 18:28:19,016 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 95 transitions. Word has length 31 [2018-04-11 18:28:19,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 18:28:19,016 INFO L459 AbstractCegarLoop]: Abstraction has 90 states and 95 transitions. [2018-04-11 18:28:19,016 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 18:28:19,016 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 95 transitions. [2018-04-11 18:28:19,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-04-11 18:28:19,017 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 18:28:19,017 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] [2018-04-11 18:28:19,017 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]=== [2018-04-11 18:28:19,017 INFO L82 PathProgramCache]: Analyzing trace with hash 216183673, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 18:28:19,019 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 18:28:19,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 18:28:19,030 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-04-11 18:28:19,034 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-04-11 18:28:19,034 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-04-11 18:28:19,034 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-04-11 18:28:19,036 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-04-11 18:28:19,036 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-04-11 18:28:19,036 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-04-11 18:28:19,111 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 8013 column 16: unknown constant %1 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.parseSuccess(Executor.java:222) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.assertTerm(Scriptor.java:146) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.assertTerm(DiffWrapperScript.java:200) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.assertTerm(ManagedScript.java:133) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.IncrementalPlicationChecker.checkPlication(IncrementalPlicationChecker.java:120) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.checkEqualityStatus(Elim1Store.java:667) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.analyzeIndexEqualities(Elim1Store.java:759) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:300) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:270) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computePredicates(NestedInterpolantsBuilder.java:582) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:169) 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) [2018-04-11 18:28:19,114 INFO L168 Benchmark]: Toolchain (without parser) took 1910.63 ms. Allocated memory was 402.1 MB in the beginning and 586.7 MB in the end (delta: 184.5 MB). Free memory was 338.6 MB in the beginning and 468.1 MB in the end (delta: -129.5 MB). Peak memory consumption was 55.1 MB. Max. memory is 5.3 GB. [2018-04-11 18:28:19,115 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 402.1 MB. Free memory is still 362.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 18:28:19,116 INFO L168 Benchmark]: CACSL2BoogieTranslator took 181.08 ms. Allocated memory is still 402.1 MB. Free memory was 338.6 MB in the beginning and 327.3 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 5.3 GB. [2018-04-11 18:28:19,116 INFO L168 Benchmark]: Boogie Preprocessor took 23.11 ms. Allocated memory is still 402.1 MB. Free memory was 327.3 MB in the beginning and 326.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-04-11 18:28:19,116 INFO L168 Benchmark]: RCFGBuilder took 246.06 ms. Allocated memory was 402.1 MB in the beginning and 586.7 MB in the end (delta: 184.5 MB). Free memory was 326.0 MB in the beginning and 549.9 MB in the end (delta: -223.9 MB). Peak memory consumption was 27.0 MB. Max. memory is 5.3 GB. [2018-04-11 18:28:19,117 INFO L168 Benchmark]: TraceAbstraction took 1457.36 ms. Allocated memory is still 586.7 MB. Free memory was 549.9 MB in the beginning and 468.1 MB in the end (delta: 81.8 MB). Peak memory consumption was 81.8 MB. Max. memory is 5.3 GB. [2018-04-11 18:28:19,120 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 402.1 MB. Free memory is still 362.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 181.08 ms. Allocated memory is still 402.1 MB. Free memory was 338.6 MB in the beginning and 327.3 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 23.11 ms. Allocated memory is still 402.1 MB. Free memory was 327.3 MB in the beginning and 326.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 246.06 ms. Allocated memory was 402.1 MB in the beginning and 586.7 MB in the end (delta: 184.5 MB). Free memory was 326.0 MB in the beginning and 549.9 MB in the end (delta: -223.9 MB). Peak memory consumption was 27.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1457.36 ms. Allocated memory is still 586.7 MB. Free memory was 549.9 MB in the beginning and 468.1 MB in the end (delta: 81.8 MB). Peak memory consumption was 81.8 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: line 8013 column 16: unknown constant %1 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: line 8013 column 16: unknown constant %1: de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$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/ArraysOfVariableLength2_true-valid-memsafety.c_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-11_18-28-19-128.csv Received shutdown request...