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_Camel.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength4_true-valid-memsafety_true-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-11 11:25:59,227 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 11:25:59,229 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 11:25:59,242 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-11 11:25:59,243 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-11 11:25:59,243 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-11 11:25:59,244 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-11 11:25:59,245 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-11 11:25:59,247 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-11 11:25:59,248 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-11 11:25:59,249 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-11 11:25:59,249 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-11 11:25:59,250 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-11 11:25:59,251 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-11 11:25:59,251 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-11 11:25:59,253 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-11 11:25:59,255 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-11 11:25:59,256 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-11 11:25:59,257 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-11 11:25:59,258 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-11 11:25:59,260 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-11 11:25:59,260 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-11 11:25:59,261 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-11 11:25:59,262 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-11 11:25:59,262 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-11 11:25:59,263 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-11 11:25:59,264 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-11 11:25:59,264 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-11 11:25:59,265 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-11 11:25:59,265 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-11 11:25:59,266 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-11 11:25:59,266 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf [2018-04-11 11:25:59,287 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 11:25:59,288 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 11:25:59,289 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-11 11:25:59,289 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-11 11:25:59,289 INFO L133 SettingsManager]: * Use SBE=true [2018-04-11 11:25:59,289 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 11:25:59,290 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 11:25:59,290 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 11:25:59,290 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 11:25:59,290 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 11:25:59,290 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 11:25:59,290 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 11:25:59,290 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-11 11:25:59,291 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 11:25:59,291 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 11:25:59,291 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 11:25:59,291 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-11 11:25:59,291 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-11 11:25:59,291 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 11:25:59,291 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 11:25:59,292 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 11:25:59,292 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-11 11:25:59,292 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-11 11:25:59,292 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-04-11 11:25:59,323 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 11:25:59,333 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 11:25:59,337 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 11:25:59,338 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 11:25:59,338 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 11:25:59,339 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength4_true-valid-memsafety_true-termination.c [2018-04-11 11:25:59,639 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG8e670b4d0 [2018-04-11 11:25:59,737 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 11:25:59,737 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 11:25:59,739 INFO L168 CDTParser]: Scanning ArraysOfVariableLength4_true-valid-memsafety_true-termination.c [2018-04-11 11:25:59,739 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 11:25:59,739 INFO L215 ultiparseSymbolTable]: [2018-04-11 11:25:59,739 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 11:25:59,740 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo ('foo') in ArraysOfVariableLength4_true-valid-memsafety_true-termination.c [2018-04-11 11:25:59,740 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in ArraysOfVariableLength4_true-valid-memsafety_true-termination.c [2018-04-11 11:25:59,740 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-11 11:25:59,740 INFO L233 ultiparseSymbolTable]: [2018-04-11 11:25:59,759 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG8e670b4d0 [2018-04-11 11:25:59,762 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 11:25:59,763 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 11:25:59,764 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 11:25:59,764 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 11:25:59,768 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 11:25:59,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 11:25:59" (1/1) ... [2018-04-11 11:25:59,770 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ec91a58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:25:59, skipping insertion in model container [2018-04-11 11:25:59,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 11:25:59" (1/1) ... [2018-04-11 11:25:59,781 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 11:25:59,791 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 11:25:59,889 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 11:25:59,910 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 11:25:59,915 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 9 non ball SCCs. Number of states in SCCs 9. [2018-04-11 11:25:59,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:25:59 WrapperNode [2018-04-11 11:25:59,921 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 11:25:59,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 11:25:59,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 11:25:59,922 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 11:25:59,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:25:59" (1/1) ... [2018-04-11 11:25:59,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:25:59" (1/1) ... [2018-04-11 11:25:59,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:25:59" (1/1) ... [2018-04-11 11:25:59,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:25:59" (1/1) ... [2018-04-11 11:25:59,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:25:59" (1/1) ... [2018-04-11 11:25:59,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:25:59" (1/1) ... [2018-04-11 11:25:59,946 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:25:59" (1/1) ... [2018-04-11 11:25:59,947 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 11:25:59,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 11:25:59,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 11:25:59,950 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 11:25:59,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:25:59" (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 11:25:59,990 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 11:25:59,990 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 11:25:59,990 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo [2018-04-11 11:25:59,990 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 11:25:59,991 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo [2018-04-11 11:25:59,991 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-11 11:25:59,991 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 11:25:59,991 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 11:25:59,991 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 11:25:59,991 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 11:25:59,991 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 11:25:59,991 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-11 11:25:59,991 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-11 11:26:00,192 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 11:26:00,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 11:26:00 BoogieIcfgContainer [2018-04-11 11:26:00,192 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 11:26:00,193 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 11:26:00,193 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 11:26:00,195 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 11:26:00,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 11:25:59" (1/3) ... [2018-04-11 11:26:00,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b5f7a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 11:26:00, skipping insertion in model container [2018-04-11 11:26:00,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:25:59" (2/3) ... [2018-04-11 11:26:00,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b5f7a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 11:26:00, skipping insertion in model container [2018-04-11 11:26:00,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 11:26:00" (3/3) ... [2018-04-11 11:26:00,197 INFO L107 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength4_true-valid-memsafety_true-termination.c [2018-04-11 11:26:00,204 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-11 11:26:00,208 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-04-11 11:26:00,244 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 11:26:00,245 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 11:26:00,245 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-11 11:26:00,245 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-11 11:26:00,245 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-11 11:26:00,246 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 11:26:00,246 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 11:26:00,246 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 11:26:00,246 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 11:26:00,247 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 11:26:00,257 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2018-04-11 11:26:00,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-04-11 11:26:00,264 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 11:26:00,264 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 11:26:00,264 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]=== [2018-04-11 11:26:00,268 INFO L82 PathProgramCache]: Analyzing trace with hash -215054890, now seen corresponding path program 1 times [2018-04-11 11:26:00,270 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 11:26:00,271 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 11:26:00,302 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 11:26:00,303 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 11:26:00,303 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 11:26:00,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 11:26:00,332 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 11:26:00,388 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 11:26:00,389 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 11:26:00,390 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-04-11 11:26:00,391 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-11 11:26:00,402 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-11 11:26:00,402 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-11 11:26:00,404 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2018-04-11 11:26:00,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 11:26:00,466 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2018-04-11 11:26:00,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-11 11:26:00,468 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-04-11 11:26:00,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 11:26:00,476 INFO L225 Difference]: With dead ends: 63 [2018-04-11 11:26:00,476 INFO L226 Difference]: Without dead ends: 59 [2018-04-11 11:26:00,478 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 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 11:26:00,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-04-11 11:26:00,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 49. [2018-04-11 11:26:00,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-04-11 11:26:00,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 52 transitions. [2018-04-11 11:26:00,508 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 52 transitions. Word has length 11 [2018-04-11 11:26:00,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 11:26:00,508 INFO L459 AbstractCegarLoop]: Abstraction has 49 states and 52 transitions. [2018-04-11 11:26:00,508 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-11 11:26:00,508 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 52 transitions. [2018-04-11 11:26:00,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-04-11 11:26:00,509 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 11:26:00,509 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 11:26:00,509 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]=== [2018-04-11 11:26:00,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1100032001, now seen corresponding path program 1 times [2018-04-11 11:26:00,509 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 11:26:00,509 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 11:26:00,510 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 11:26:00,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 11:26:00,511 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 11:26:00,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 11:26:00,524 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 11:26:00,577 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 11:26:00,577 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 11:26:00,577 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 11:26:00,579 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 11:26:00,579 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 11:26:00,579 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-04-11 11:26:00,579 INFO L87 Difference]: Start difference. First operand 49 states and 52 transitions. Second operand 5 states. [2018-04-11 11:26:00,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 11:26:00,616 INFO L93 Difference]: Finished difference Result 57 states and 60 transitions. [2018-04-11 11:26:00,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 11:26:00,616 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-04-11 11:26:00,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 11:26:00,617 INFO L225 Difference]: With dead ends: 57 [2018-04-11 11:26:00,617 INFO L226 Difference]: Without dead ends: 57 [2018-04-11 11:26:00,618 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-04-11 11:26:00,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-04-11 11:26:00,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 52. [2018-04-11 11:26:00,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-04-11 11:26:00,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2018-04-11 11:26:00,621 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 16 [2018-04-11 11:26:00,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 11:26:00,621 INFO L459 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2018-04-11 11:26:00,622 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 11:26:00,622 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2018-04-11 11:26:00,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-04-11 11:26:00,622 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 11:26:00,622 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 11:26:00,622 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]=== [2018-04-11 11:26:00,622 INFO L82 PathProgramCache]: Analyzing trace with hash -258746290, now seen corresponding path program 1 times [2018-04-11 11:26:00,622 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 11:26:00,622 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 11:26:00,623 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 11:26:00,623 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 11:26:00,623 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 11:26:00,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 11:26:00,631 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 11:26:00,698 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 11:26:00,699 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 11:26:00,699 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 11:26:00,699 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 11:26:00,700 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 11:26:00,700 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-04-11 11:26:00,700 INFO L87 Difference]: Start difference. First operand 52 states and 55 transitions. Second operand 6 states. [2018-04-11 11:26:00,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 11:26:00,778 INFO L93 Difference]: Finished difference Result 51 states and 54 transitions. [2018-04-11 11:26:00,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 11:26:00,778 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-04-11 11:26:00,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 11:26:00,779 INFO L225 Difference]: With dead ends: 51 [2018-04-11 11:26:00,779 INFO L226 Difference]: Without dead ends: 51 [2018-04-11 11:26:00,779 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-04-11 11:26:00,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-04-11 11:26:00,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-04-11 11:26:00,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-04-11 11:26:00,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 54 transitions. [2018-04-11 11:26:00,784 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 54 transitions. Word has length 17 [2018-04-11 11:26:00,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 11:26:00,784 INFO L459 AbstractCegarLoop]: Abstraction has 51 states and 54 transitions. [2018-04-11 11:26:00,784 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 11:26:00,784 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 54 transitions. [2018-04-11 11:26:00,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-04-11 11:26:00,785 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 11:26:00,785 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 11:26:00,785 INFO L408 AbstractCegarLoop]: === Iteration 4 === [__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]=== [2018-04-11 11:26:00,785 INFO L82 PathProgramCache]: Analyzing trace with hash -258746291, now seen corresponding path program 1 times [2018-04-11 11:26:00,786 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 11:26:00,786 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 11:26:00,787 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 11:26:00,787 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 11:26:00,787 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 11:26:00,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 11:26:00,795 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 11:26:00,823 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 11:26:00,824 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 11:26:00,824 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 11:26:00,824 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 11:26:00,824 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 11:26:00,824 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-11 11:26:00,825 INFO L87 Difference]: Start difference. First operand 51 states and 54 transitions. Second operand 5 states. [2018-04-11 11:26:00,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 11:26:00,856 INFO L93 Difference]: Finished difference Result 50 states and 53 transitions. [2018-04-11 11:26:00,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 11:26:00,857 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-04-11 11:26:00,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 11:26:00,857 INFO L225 Difference]: With dead ends: 50 [2018-04-11 11:26:00,858 INFO L226 Difference]: Without dead ends: 50 [2018-04-11 11:26:00,858 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-04-11 11:26:00,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-04-11 11:26:00,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-04-11 11:26:00,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-04-11 11:26:00,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2018-04-11 11:26:00,860 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 17 [2018-04-11 11:26:00,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 11:26:00,861 INFO L459 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2018-04-11 11:26:00,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 11:26:00,861 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2018-04-11 11:26:00,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-04-11 11:26:00,861 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 11:26:00,861 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 11:26:00,861 INFO L408 AbstractCegarLoop]: === Iteration 5 === [__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]=== [2018-04-11 11:26:00,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1933852231, now seen corresponding path program 1 times [2018-04-11 11:26:00,861 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 11:26:00,862 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 11:26:00,862 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 11:26:00,862 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 11:26:00,862 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 11:26:00,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 11:26:00,872 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 11:26:00,917 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 11:26:00,917 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 11:26:00,917 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 11:26:00,925 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 11:26:00,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 11:26:00,948 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 11:26:00,974 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 11:26:00,993 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 11:26:00,993 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2018-04-11 11:26:00,993 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-11 11:26:00,993 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-11 11:26:00,994 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-04-11 11:26:00,994 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand 9 states. [2018-04-11 11:26:01,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 11:26:01,094 INFO L93 Difference]: Finished difference Result 60 states and 63 transitions. [2018-04-11 11:26:01,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 11:26:01,098 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-04-11 11:26:01,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 11:26:01,099 INFO L225 Difference]: With dead ends: 60 [2018-04-11 11:26:01,099 INFO L226 Difference]: Without dead ends: 60 [2018-04-11 11:26:01,100 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-04-11 11:26:01,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-04-11 11:26:01,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-04-11 11:26:01,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-04-11 11:26:01,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 63 transitions. [2018-04-11 11:26:01,105 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 63 transitions. Word has length 22 [2018-04-11 11:26:01,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 11:26:01,105 INFO L459 AbstractCegarLoop]: Abstraction has 60 states and 63 transitions. [2018-04-11 11:26:01,105 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-11 11:26:01,105 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 63 transitions. [2018-04-11 11:26:01,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-04-11 11:26:01,106 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 11:26:01,106 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 11:26:01,106 INFO L408 AbstractCegarLoop]: === Iteration 6 === [__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]=== [2018-04-11 11:26:01,107 INFO L82 PathProgramCache]: Analyzing trace with hash 687601263, now seen corresponding path program 1 times [2018-04-11 11:26:01,107 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 11:26:01,107 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 11:26:01,108 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 11:26:01,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 11:26:01,108 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 11:26:01,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 11:26:01,124 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 11:26:01,222 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-04-11 11:26:01,222 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 11:26:01,222 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 11:26:01,222 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 11:26:01,223 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 11:26:01,223 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-04-11 11:26:01,223 INFO L87 Difference]: Start difference. First operand 60 states and 63 transitions. Second operand 5 states. [2018-04-11 11:26:01,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 11:26:01,360 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2018-04-11 11:26:01,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 11:26:01,361 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2018-04-11 11:26:01,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 11:26:01,362 INFO L225 Difference]: With dead ends: 70 [2018-04-11 11:26:01,362 INFO L226 Difference]: Without dead ends: 70 [2018-04-11 11:26:01,362 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-04-11 11:26:01,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-04-11 11:26:01,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 56. [2018-04-11 11:26:01,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-04-11 11:26:01,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 59 transitions. [2018-04-11 11:26:01,367 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 59 transitions. Word has length 41 [2018-04-11 11:26:01,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 11:26:01,368 INFO L459 AbstractCegarLoop]: Abstraction has 56 states and 59 transitions. [2018-04-11 11:26:01,368 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 11:26:01,368 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 59 transitions. [2018-04-11 11:26:01,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-04-11 11:26:01,369 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 11:26:01,369 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 11:26:01,369 INFO L408 AbstractCegarLoop]: === Iteration 7 === [__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]=== [2018-04-11 11:26:01,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1072164206, now seen corresponding path program 1 times [2018-04-11 11:26:01,369 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 11:26:01,369 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 11:26:01,370 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 11:26:01,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 11:26:01,370 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 11:26:01,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 11:26:01,386 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 11:26:01,416 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-04-11 11:26:01,417 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 11:26:01,417 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 11:26:01,425 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 11:26:01,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 11:26:01,443 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 11:26:01,489 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 11:26:01,508 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 11:26:01,508 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7] total 9 [2018-04-11 11:26:01,508 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-11 11:26:01,508 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-11 11:26:01,508 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-04-11 11:26:01,508 INFO L87 Difference]: Start difference. First operand 56 states and 59 transitions. Second operand 9 states. [2018-04-11 11:26:01,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 11:26:01,603 INFO L93 Difference]: Finished difference Result 97 states and 102 transitions. [2018-04-11 11:26:01,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-11 11:26:01,603 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 49 [2018-04-11 11:26:01,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 11:26:01,604 INFO L225 Difference]: With dead ends: 97 [2018-04-11 11:26:01,604 INFO L226 Difference]: Without dead ends: 94 [2018-04-11 11:26:01,604 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-04-11 11:26:01,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2018-04-11 11:26:01,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 73. [2018-04-11 11:26:01,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-04-11 11:26:01,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 78 transitions. [2018-04-11 11:26:01,609 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 78 transitions. Word has length 49 [2018-04-11 11:26:01,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 11:26:01,610 INFO L459 AbstractCegarLoop]: Abstraction has 73 states and 78 transitions. [2018-04-11 11:26:01,610 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-11 11:26:01,610 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 78 transitions. [2018-04-11 11:26:01,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-04-11 11:26:01,612 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 11:26:01,613 INFO L355 BasicCegarLoop]: trace histogram [10, 8, 8, 8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 11:26:01,613 INFO L408 AbstractCegarLoop]: === Iteration 8 === [__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]=== [2018-04-11 11:26:01,613 INFO L82 PathProgramCache]: Analyzing trace with hash 211653399, now seen corresponding path program 2 times [2018-04-11 11:26:01,613 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 11:26:01,613 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 11:26:01,614 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 11:26:01,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 11:26:01,614 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 11:26:01,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 11:26:01,637 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 11:26:01,692 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2018-04-11 11:26:01,692 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 11:26:01,693 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 11:26:01,700 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 11:26:01,719 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-04-11 11:26:01,719 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 11:26:01,722 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 11:26:01,753 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 11:26:01,757 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 5 [2018-04-11 11:26:01,757 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 11:26:01,759 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 11:26:01,759 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-04-11 11:26:01,833 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 11:26:01,834 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 5 [2018-04-11 11:26:01,834 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 11:26:01,846 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 11:26:01,846 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-04-11 11:26:01,896 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_~#mask~0.base| Int)) (and (= (store |c_old(#valid)| |main_~#mask~0.base| 0) |c_#valid|) (= (select |c_old(#valid)| |main_~#mask~0.base|) 0))) is different from true [2018-04-11 11:26:01,917 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2018-04-11 11:26:01,938 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-04-11 11:26:01,938 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2018-04-11 11:26:01,939 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-11 11:26:01,939 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-11 11:26:01,939 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=40, Unknown=1, NotChecked=12, Total=72 [2018-04-11 11:26:01,940 INFO L87 Difference]: Start difference. First operand 73 states and 78 transitions. Second operand 9 states. [2018-04-11 11:26:02,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 11:26:02,157 INFO L93 Difference]: Finished difference Result 103 states and 108 transitions. [2018-04-11 11:26:02,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-11 11:26:02,157 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 91 [2018-04-11 11:26:02,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 11:26:02,157 INFO L225 Difference]: With dead ends: 103 [2018-04-11 11:26:02,158 INFO L226 Difference]: Without dead ends: 0 [2018-04-11 11:26:02,158 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 86 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=175, Unknown=1, NotChecked=28, Total=272 [2018-04-11 11:26:02,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-04-11 11:26:02,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-04-11 11:26:02,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-04-11 11:26:02,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-04-11 11:26:02,158 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 91 [2018-04-11 11:26:02,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 11:26:02,159 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-04-11 11:26:02,159 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-11 11:26:02,159 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-04-11 11:26:02,159 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-04-11 11:26:02,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.04 11:26:02 BoogieIcfgContainer [2018-04-11 11:26:02,162 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-11 11:26:02,162 INFO L168 Benchmark]: Toolchain (without parser) took 2399.98 ms. Allocated memory was 400.6 MB in the beginning and 633.3 MB in the end (delta: 232.8 MB). Free memory was 339.6 MB in the beginning and 466.2 MB in the end (delta: -126.7 MB). Peak memory consumption was 106.1 MB. Max. memory is 5.3 GB. [2018-04-11 11:26:02,163 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 400.6 MB. Free memory is still 359.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 11:26:02,163 INFO L168 Benchmark]: CACSL2BoogieTranslator took 158.28 ms. Allocated memory is still 400.6 MB. Free memory was 339.6 MB in the beginning and 329.0 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-04-11 11:26:02,164 INFO L168 Benchmark]: Boogie Preprocessor took 25.63 ms. Allocated memory is still 400.6 MB. Free memory was 329.0 MB in the beginning and 327.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-04-11 11:26:02,164 INFO L168 Benchmark]: RCFGBuilder took 242.40 ms. Allocated memory was 400.6 MB in the beginning and 605.6 MB in the end (delta: 205.0 MB). Free memory was 327.7 MB in the beginning and 569.1 MB in the end (delta: -241.4 MB). Peak memory consumption was 25.3 MB. Max. memory is 5.3 GB. [2018-04-11 11:26:02,164 INFO L168 Benchmark]: TraceAbstraction took 1969.14 ms. Allocated memory was 605.6 MB in the beginning and 633.3 MB in the end (delta: 27.8 MB). Free memory was 569.1 MB in the beginning and 466.2 MB in the end (delta: 102.8 MB). Peak memory consumption was 130.6 MB. Max. memory is 5.3 GB. [2018-04-11 11:26:02,166 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 400.6 MB. Free memory is still 359.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 158.28 ms. Allocated memory is still 400.6 MB. Free memory was 339.6 MB in the beginning and 329.0 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 25.63 ms. Allocated memory is still 400.6 MB. Free memory was 329.0 MB in the beginning and 327.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 242.40 ms. Allocated memory was 400.6 MB in the beginning and 605.6 MB in the end (delta: 205.0 MB). Free memory was 327.7 MB in the beginning and 569.1 MB in the end (delta: -241.4 MB). Peak memory consumption was 25.3 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1969.14 ms. Allocated memory was 605.6 MB in the beginning and 633.3 MB in the end (delta: 27.8 MB). Free memory was 569.1 MB in the beginning and 466.2 MB in the end (delta: 102.8 MB). Peak memory consumption was 130.6 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 16]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 16]: array index is always in bounds For all program executions holds that array index is always in bounds at this location - PositiveResult [Line: 29]: array index is always in bounds For all program executions holds that array index is always in bounds at this location - PositiveResult [Line: 21]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 26]: array index is always in bounds For all program executions holds that array index is always in bounds at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 46 locations, 6 error locations. SAFE Result, 1.9s OverallTime, 8 OverallIterations, 10 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 279 SDtfs, 358 SDslu, 619 SDs, 0 SdLazy, 449 SolverSat, 72 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 212 GetRequests, 156 SyntacticMatches, 4 SemanticMatches, 52 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 50 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 426 NumberOfCodeBlocks, 354 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 415 ConstructedInterpolants, 62 QuantifiedInterpolants, 89021 SizeOfPredicates, 3 NumberOfNonLiveVariables, 240 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 11 InterpolantComputations, 6 PerfectInterpolantSequences, 477/517 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! 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_Camel.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-11_11-26-02-172.csv 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_Camel.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-11_11-26-02-172.csv Received shutdown request...