java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength2_false-valid-deref-write.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cceb4a [2018-01-29 23:50:14,142 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-29 23:50:14,144 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-29 23:50:14,159 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-29 23:50:14,159 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-29 23:50:14,160 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-29 23:50:14,162 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-29 23:50:14,163 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-29 23:50:14,165 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-29 23:50:14,166 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-29 23:50:14,167 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-29 23:50:14,167 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-29 23:50:14,168 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-29 23:50:14,169 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-29 23:50:14,170 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-29 23:50:14,173 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-29 23:50:14,175 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-29 23:50:14,177 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-29 23:50:14,178 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-29 23:50:14,179 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-29 23:50:14,181 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-29 23:50:14,182 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-29 23:50:14,182 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-29 23:50:14,183 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-29 23:50:14,184 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-29 23:50:14,185 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-29 23:50:14,185 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-29 23:50:14,186 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-29 23:50:14,186 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-29 23:50:14,186 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-29 23:50:14,187 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-29 23:50:14,187 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf [2018-01-29 23:50:14,195 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-29 23:50:14,196 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-29 23:50:14,196 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-29 23:50:14,197 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-29 23:50:14,197 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-29 23:50:14,197 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-29 23:50:14,197 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-29 23:50:14,197 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-29 23:50:14,197 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-29 23:50:14,198 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-29 23:50:14,198 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-29 23:50:14,198 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-29 23:50:14,198 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-29 23:50:14,198 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-29 23:50:14,198 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-29 23:50:14,198 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-29 23:50:14,199 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-29 23:50:14,199 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-29 23:50:14,199 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-29 23:50:14,199 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-01-29 23:50:14,199 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-29 23:50:14,199 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-29 23:50:14,199 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-29 23:50:14,200 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-29 23:50:14,200 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-29 23:50:14,200 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-29 23:50:14,200 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-29 23:50:14,200 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-29 23:50:14,200 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-29 23:50:14,201 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-29 23:50:14,201 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-29 23:50:14,201 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-29 23:50:14,201 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-29 23:50:14,202 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-29 23:50:14,234 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-29 23:50:14,244 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-29 23:50:14,247 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-29 23:50:14,248 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-29 23:50:14,249 INFO L276 PluginConnector]: CDTParser initialized [2018-01-29 23:50:14,249 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength2_false-valid-deref-write.c [2018-01-29 23:50:14,342 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-29 23:50:14,347 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-29 23:50:14,348 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-29 23:50:14,348 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-29 23:50:14,353 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-29 23:50:14,354 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 11:50:14" (1/1) ... [2018-01-29 23:50:14,357 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e7787c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:50:14, skipping insertion in model container [2018-01-29 23:50:14,357 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 11:50:14" (1/1) ... [2018-01-29 23:50:14,371 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-29 23:50:14,385 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-29 23:50:14,497 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-29 23:50:14,516 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-29 23:50:14,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:50:14 WrapperNode [2018-01-29 23:50:14,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-29 23:50:14,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-29 23:50:14,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-29 23:50:14,524 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-29 23:50:14,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:50:14" (1/1) ... [2018-01-29 23:50:14,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:50:14" (1/1) ... [2018-01-29 23:50:14,543 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:50:14" (1/1) ... [2018-01-29 23:50:14,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:50:14" (1/1) ... [2018-01-29 23:50:14,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:50:14" (1/1) ... [2018-01-29 23:50:14,550 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:50:14" (1/1) ... [2018-01-29 23:50:14,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:50:14" (1/1) ... [2018-01-29 23:50:14,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-29 23:50:14,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-29 23:50:14,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-29 23:50:14,555 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-29 23:50:14,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:50:14" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-29 23:50:14,603 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-29 23:50:14,603 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-29 23:50:14,604 INFO L136 BoogieDeclarations]: Found implementation of procedure bar [2018-01-29 23:50:14,604 INFO L136 BoogieDeclarations]: Found implementation of procedure foo [2018-01-29 23:50:14,604 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-29 23:50:14,604 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-29 23:50:14,604 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-29 23:50:14,604 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-29 23:50:14,604 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-29 23:50:14,605 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-29 23:50:14,605 INFO L128 BoogieDeclarations]: Found specification of procedure bar [2018-01-29 23:50:14,605 INFO L128 BoogieDeclarations]: Found specification of procedure foo [2018-01-29 23:50:14,605 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-29 23:50:14,605 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-29 23:50:14,605 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-29 23:50:14,852 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-29 23:50:14,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 11:50:14 BoogieIcfgContainer [2018-01-29 23:50:14,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-29 23:50:14,854 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-29 23:50:14,854 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-29 23:50:14,856 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-29 23:50:14,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 11:50:14" (1/3) ... [2018-01-29 23:50:14,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eda5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 11:50:14, skipping insertion in model container [2018-01-29 23:50:14,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:50:14" (2/3) ... [2018-01-29 23:50:14,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eda5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 11:50:14, skipping insertion in model container [2018-01-29 23:50:14,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 11:50:14" (3/3) ... [2018-01-29 23:50:14,859 INFO L107 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength2_false-valid-deref-write.c [2018-01-29 23:50:14,865 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-29 23:50:14,870 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-01-29 23:50:14,912 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-29 23:50:14,912 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-29 23:50:14,912 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-29 23:50:14,912 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-29 23:50:14,912 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-29 23:50:14,912 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-29 23:50:14,913 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-29 23:50:14,913 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-29 23:50:14,914 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-29 23:50:14,933 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2018-01-29 23:50:14,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-01-29 23:50:14,939 INFO L342 BasicCegarLoop]: Found error trace [2018-01-29 23:50:14,939 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-29 23:50:14,940 INFO L371 AbstractCegarLoop]: === Iteration 1 === [barErr1RequiresViolation, barErr0RequiresViolation, fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-01-29 23:50:14,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1517835154, now seen corresponding path program 1 times [2018-01-29 23:50:14,946 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-29 23:50:14,947 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-29 23:50:14,997 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-29 23:50:14,997 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-29 23:50:14,997 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-29 23:50:15,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-29 23:50:15,036 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-29 23:50:15,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-29 23:50:15,064 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-29 23:50:15,065 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-29 23:50:15,066 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-29 23:50:15,076 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-29 23:50:15,077 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-29 23:50:15,079 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 2 states. [2018-01-29 23:50:15,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-29 23:50:15,107 INFO L93 Difference]: Finished difference Result 169 states and 189 transitions. [2018-01-29 23:50:15,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-29 23:50:15,109 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-01-29 23:50:15,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-29 23:50:15,120 INFO L225 Difference]: With dead ends: 169 [2018-01-29 23:50:15,120 INFO L226 Difference]: Without dead ends: 86 [2018-01-29 23:50:15,124 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-29 23:50:15,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-01-29 23:50:15,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2018-01-29 23:50:15,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-01-29 23:50:15,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2018-01-29 23:50:15,165 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 14 [2018-01-29 23:50:15,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-29 23:50:15,165 INFO L432 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2018-01-29 23:50:15,165 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-29 23:50:15,165 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2018-01-29 23:50:15,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-29 23:50:15,166 INFO L342 BasicCegarLoop]: Found error trace [2018-01-29 23:50:15,166 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-29 23:50:15,166 INFO L371 AbstractCegarLoop]: === Iteration 2 === [barErr1RequiresViolation, barErr0RequiresViolation, fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-01-29 23:50:15,167 INFO L82 PathProgramCache]: Analyzing trace with hash -693346302, now seen corresponding path program 1 times [2018-01-29 23:50:15,167 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-29 23:50:15,167 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-29 23:50:15,168 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-29 23:50:15,168 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-29 23:50:15,168 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-29 23:50:15,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-29 23:50:15,184 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-29 23:50:15,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-29 23:50:15,293 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-29 23:50:15,293 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-29 23:50:15,295 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-29 23:50:15,295 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-29 23:50:15,295 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-29 23:50:15,296 INFO L87 Difference]: Start difference. First operand 86 states and 91 transitions. Second operand 3 states. [2018-01-29 23:50:15,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-29 23:50:15,388 INFO L93 Difference]: Finished difference Result 110 states and 118 transitions. [2018-01-29 23:50:15,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-29 23:50:15,389 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-01-29 23:50:15,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-29 23:50:15,392 INFO L225 Difference]: With dead ends: 110 [2018-01-29 23:50:15,393 INFO L226 Difference]: Without dead ends: 93 [2018-01-29 23:50:15,394 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-29 23:50:15,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2018-01-29 23:50:15,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 85. [2018-01-29 23:50:15,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-01-29 23:50:15,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 89 transitions. [2018-01-29 23:50:15,409 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 89 transitions. Word has length 15 [2018-01-29 23:50:15,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-29 23:50:15,410 INFO L432 AbstractCegarLoop]: Abstraction has 85 states and 89 transitions. [2018-01-29 23:50:15,410 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-29 23:50:15,410 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 89 transitions. [2018-01-29 23:50:15,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-01-29 23:50:15,411 INFO L342 BasicCegarLoop]: Found error trace [2018-01-29 23:50:15,411 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-29 23:50:15,411 INFO L371 AbstractCegarLoop]: === Iteration 3 === [barErr1RequiresViolation, barErr0RequiresViolation, fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-01-29 23:50:15,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1457275385, now seen corresponding path program 1 times [2018-01-29 23:50:15,412 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-29 23:50:15,412 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-29 23:50:15,413 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-29 23:50:15,413 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-29 23:50:15,413 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-29 23:50:15,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-29 23:50:15,443 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-29 23:50:15,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-29 23:50:15,678 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-29 23:50:15,679 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-29 23:50:15,679 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-29 23:50:15,679 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-29 23:50:15,679 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-29 23:50:15,680 INFO L87 Difference]: Start difference. First operand 85 states and 89 transitions. Second operand 7 states. [2018-01-29 23:50:15,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-29 23:50:15,966 INFO L93 Difference]: Finished difference Result 140 states and 151 transitions. [2018-01-29 23:50:15,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-29 23:50:15,966 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-01-29 23:50:15,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-29 23:50:15,969 INFO L225 Difference]: With dead ends: 140 [2018-01-29 23:50:15,969 INFO L226 Difference]: Without dead ends: 138 [2018-01-29 23:50:15,970 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-01-29 23:50:15,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-01-29 23:50:15,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 116. [2018-01-29 23:50:15,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-01-29 23:50:15,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 127 transitions. [2018-01-29 23:50:15,983 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 127 transitions. Word has length 21 [2018-01-29 23:50:15,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-29 23:50:15,983 INFO L432 AbstractCegarLoop]: Abstraction has 116 states and 127 transitions. [2018-01-29 23:50:15,983 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-29 23:50:15,983 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 127 transitions. [2018-01-29 23:50:15,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-29 23:50:15,984 INFO L342 BasicCegarLoop]: Found error trace [2018-01-29 23:50:15,984 INFO L350 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] [2018-01-29 23:50:15,984 INFO L371 AbstractCegarLoop]: === Iteration 4 === [barErr1RequiresViolation, barErr0RequiresViolation, fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-01-29 23:50:15,985 INFO L82 PathProgramCache]: Analyzing trace with hash -2069103333, now seen corresponding path program 1 times [2018-01-29 23:50:15,985 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-29 23:50:15,985 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-29 23:50:15,986 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-29 23:50:15,986 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-29 23:50:15,987 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-29 23:50:16,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-29 23:50:16,001 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-29 23:50:16,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-29 23:50:16,046 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-29 23:50:16,047 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-29 23:50:16,047 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-29 23:50:16,047 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-29 23:50:16,047 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-29 23:50:16,048 INFO L87 Difference]: Start difference. First operand 116 states and 127 transitions. Second operand 3 states. [2018-01-29 23:50:16,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-29 23:50:16,077 INFO L93 Difference]: Finished difference Result 116 states and 127 transitions. [2018-01-29 23:50:16,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-29 23:50:16,077 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2018-01-29 23:50:16,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-29 23:50:16,078 INFO L225 Difference]: With dead ends: 116 [2018-01-29 23:50:16,078 INFO L226 Difference]: Without dead ends: 115 [2018-01-29 23:50:16,079 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-29 23:50:16,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2018-01-29 23:50:16,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2018-01-29 23:50:16,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-01-29 23:50:16,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 125 transitions. [2018-01-29 23:50:16,088 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 125 transitions. Word has length 22 [2018-01-29 23:50:16,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-29 23:50:16,089 INFO L432 AbstractCegarLoop]: Abstraction has 115 states and 125 transitions. [2018-01-29 23:50:16,089 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-29 23:50:16,089 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 125 transitions. [2018-01-29 23:50:16,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-29 23:50:16,090 INFO L342 BasicCegarLoop]: Found error trace [2018-01-29 23:50:16,090 INFO L350 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] [2018-01-29 23:50:16,090 INFO L371 AbstractCegarLoop]: === Iteration 5 === [barErr1RequiresViolation, barErr0RequiresViolation, fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-01-29 23:50:16,090 INFO L82 PathProgramCache]: Analyzing trace with hash -2069103332, now seen corresponding path program 1 times [2018-01-29 23:50:16,090 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-29 23:50:16,090 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-29 23:50:16,091 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-29 23:50:16,091 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-29 23:50:16,091 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-29 23:50:16,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-29 23:50:16,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-29 23:50:16,148 INFO L409 BasicCegarLoop]: Counterexample might be feasible [2018-01-29 23:50:16,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 11:50:16 BoogieIcfgContainer [2018-01-29 23:50:16,173 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-29 23:50:16,174 INFO L168 Benchmark]: Toolchain (without parser) took 1830.96 ms. Allocated memory was 304.1 MB in the beginning and 462.9 MB in the end (delta: 158.9 MB). Free memory was 263.0 MB in the beginning and 365.3 MB in the end (delta: -102.3 MB). Peak memory consumption was 56.5 MB. Max. memory is 5.3 GB. [2018-01-29 23:50:16,174 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 304.1 MB. Free memory is still 267.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-29 23:50:16,175 INFO L168 Benchmark]: CACSL2BoogieTranslator took 175.51 ms. Allocated memory is still 304.1 MB. Free memory was 262.0 MB in the beginning and 253.7 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 5.3 GB. [2018-01-29 23:50:16,175 INFO L168 Benchmark]: Boogie Preprocessor took 30.56 ms. Allocated memory is still 304.1 MB. Free memory was 253.7 MB in the beginning and 251.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-29 23:50:16,175 INFO L168 Benchmark]: RCFGBuilder took 298.48 ms. Allocated memory is still 304.1 MB. Free memory was 251.7 MB in the beginning and 229.7 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 5.3 GB. [2018-01-29 23:50:16,176 INFO L168 Benchmark]: TraceAbstraction took 1319.19 ms. Allocated memory was 304.1 MB in the beginning and 462.9 MB in the end (delta: 158.9 MB). Free memory was 229.7 MB in the beginning and 365.3 MB in the end (delta: -135.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 5.3 GB. [2018-01-29 23:50:16,178 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 304.1 MB. Free memory is still 267.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 175.51 ms. Allocated memory is still 304.1 MB. Free memory was 262.0 MB in the beginning and 253.7 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 30.56 ms. Allocated memory is still 304.1 MB. Free memory was 253.7 MB in the beginning and 251.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 298.48 ms. Allocated memory is still 304.1 MB. Free memory was 251.7 MB in the beginning and 229.7 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1319.19 ms. Allocated memory was 304.1 MB in the beginning and 462.9 MB in the end (delta: 158.9 MB). Free memory was 229.7 MB in the beginning and 365.3 MB in the end (delta: -135.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L32] int i, b[100]; VAL [b={402:0}] [L33] i = 0 VAL [b={402:0}, i=0] [L33] COND TRUE i < 100 VAL [b={402:0}, i=0] [L34] CALL foo(i, b, i + 1) VAL [\old(n)=0, \old(size)=1, b={402:0}] [L21] FCALL int a[n], i; VAL [\old(n)=0, \old(size)=1, a={404:0}, b={402:0}, b={402:0}, n=0, size=1] [L22] i = 0 VAL [\old(n)=0, \old(size)=1, a={404:0}, b={402:0}, b={402:0}, i=0, n=0, size=1] [L22] COND TRUE i < size VAL [\old(n)=0, \old(size)=1, a={404:0}, b={402:0}, b={402:0}, i=0, n=0, size=1] [L23] EXPR, FCALL b[i] VAL [\old(n)=0, \old(size)=1, a={404:0}, b={402:0}, b={402:0}, b[i]=403, i=0, n=0, size=1] [L23] FCALL a[i] = b[i] VAL [\old(n)=0, \old(size)=1, a={404:0}, b={402:0}, b={402:0}, b[i]=403, i=0, n=0, size=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 89 locations, 11 error locations. UNSAFE Result, 1.2s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 330 SDtfs, 138 SDslu, 377 SDs, 0 SdLazy, 167 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=116occurred in iteration=3, 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, 4 MinimizatonAttempts, 30 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 94 NumberOfCodeBlocks, 94 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 4826 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength2_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-29_23-50-16-185.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength2_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-29_23-50-16-185.csv Received shutdown request...