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/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength2_false-valid-deref-read.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-a74eeac-m [2018-02-02 20:23:24,994 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 20:23:24,995 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 20:23:25,008 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 20:23:25,008 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 20:23:25,009 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 20:23:25,010 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 20:23:25,011 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 20:23:25,014 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 20:23:25,014 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 20:23:25,015 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 20:23:25,015 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 20:23:25,016 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 20:23:25,017 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 20:23:25,018 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 20:23:25,020 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 20:23:25,022 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 20:23:25,023 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 20:23:25,025 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 20:23:25,026 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 20:23:25,028 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-02 20:23:25,032 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf [2018-02-02 20:23:25,041 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 20:23:25,041 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 20:23:25,042 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 20:23:25,042 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 20:23:25,042 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 20:23:25,042 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 20:23:25,043 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 20:23:25,043 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 20:23:25,043 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 20:23:25,043 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 20:23:25,043 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 20:23:25,043 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 20:23:25,043 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 20:23:25,043 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 20:23:25,043 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 20:23:25,043 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 20:23:25,043 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 20:23:25,044 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 20:23:25,044 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 20:23:25,044 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 20:23:25,044 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 20:23:25,044 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 20:23:25,044 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-02-02 20:23:25,074 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 20:23:25,082 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 20:23:25,084 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 20:23:25,084 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 20:23:25,085 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 20:23:25,085 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength2_false-valid-deref-read.c [2018-02-02 20:23:25,161 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 20:23:25,162 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 20:23:25,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 20:23:25,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 20:23:25,166 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 20:23:25,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 08:23:25" (1/1) ... [2018-02-02 20:23:25,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@238e1a08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:23:25, skipping insertion in model container [2018-02-02 20:23:25,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 08:23:25" (1/1) ... [2018-02-02 20:23:25,177 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 20:23:25,187 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 20:23:25,270 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 20:23:25,283 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 20:23:25,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:23:25 WrapperNode [2018-02-02 20:23:25,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 20:23:25,289 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 20:23:25,289 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 20:23:25,289 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 20:23:25,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:23:25" (1/1) ... [2018-02-02 20:23:25,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:23:25" (1/1) ... [2018-02-02 20:23:25,303 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:23:25" (1/1) ... [2018-02-02 20:23:25,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:23:25" (1/1) ... [2018-02-02 20:23:25,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:23:25" (1/1) ... [2018-02-02 20:23:25,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:23:25" (1/1) ... [2018-02-02 20:23:25,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:23:25" (1/1) ... [2018-02-02 20:23:25,312 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 20:23:25,313 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 20:23:25,313 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 20:23:25,313 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 20:23:25,313 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:23:25" (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 [2018-02-02 20:23:25,352 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 20:23:25,352 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 20:23:25,352 INFO L136 BoogieDeclarations]: Found implementation of procedure bar [2018-02-02 20:23:25,352 INFO L136 BoogieDeclarations]: Found implementation of procedure foo [2018-02-02 20:23:25,352 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 20:23:25,352 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-02 20:23:25,353 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-02 20:23:25,353 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 20:23:25,353 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 20:23:25,353 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 20:23:25,353 INFO L128 BoogieDeclarations]: Found specification of procedure bar [2018-02-02 20:23:25,353 INFO L128 BoogieDeclarations]: Found specification of procedure foo [2018-02-02 20:23:25,353 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 20:23:25,353 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 20:23:25,354 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 20:23:25,522 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 20:23:25,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 08:23:25 BoogieIcfgContainer [2018-02-02 20:23:25,522 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 20:23:25,523 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 20:23:25,523 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 20:23:25,525 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 20:23:25,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 08:23:25" (1/3) ... [2018-02-02 20:23:25,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56acaf2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 08:23:25, skipping insertion in model container [2018-02-02 20:23:25,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:23:25" (2/3) ... [2018-02-02 20:23:25,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56acaf2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 08:23:25, skipping insertion in model container [2018-02-02 20:23:25,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 08:23:25" (3/3) ... [2018-02-02 20:23:25,527 INFO L107 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength2_false-valid-deref-read.c [2018-02-02 20:23:25,533 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-02 20:23:25,537 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-02-02 20:23:25,568 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 20:23:25,568 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 20:23:25,568 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-02-02 20:23:25,568 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-02 20:23:25,568 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 20:23:25,569 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 20:23:25,569 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 20:23:25,569 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 20:23:25,570 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 20:23:25,582 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2018-02-02 20:23:25,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-02-02 20:23:25,590 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:23:25,591 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:23:25,591 INFO L371 AbstractCegarLoop]: === Iteration 1 === [barErr1RequiresViolation, barErr0RequiresViolation, fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-02 20:23:25,594 INFO L82 PathProgramCache]: Analyzing trace with hash 1613294992, now seen corresponding path program 1 times [2018-02-02 20:23:25,627 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:23:25,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:23:25,657 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:23:25,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:23:25,682 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 20:23:25,682 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-02 20:23:25,683 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:23:25,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:23:25,683 INFO L182 omatonBuilderFactory]: Interpolants [71#true, 72#false] [2018-02-02 20:23:25,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:23:25,684 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-02-02 20:23:25,692 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-02-02 20:23:25,692 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-02-02 20:23:25,694 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 2 states. [2018-02-02 20:23:25,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:23:25,708 INFO L93 Difference]: Finished difference Result 68 states and 73 transitions. [2018-02-02 20:23:25,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-02-02 20:23:25,709 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-02-02 20:23:25,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:23:25,715 INFO L225 Difference]: With dead ends: 68 [2018-02-02 20:23:25,716 INFO L226 Difference]: Without dead ends: 65 [2018-02-02 20:23:25,717 INFO L554 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 [2018-02-02 20:23:25,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-02-02 20:23:25,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-02-02 20:23:25,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-02-02 20:23:25,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 70 transitions. [2018-02-02 20:23:25,742 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 70 transitions. Word has length 13 [2018-02-02 20:23:25,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:23:25,742 INFO L432 AbstractCegarLoop]: Abstraction has 65 states and 70 transitions. [2018-02-02 20:23:25,742 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-02-02 20:23:25,742 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 70 transitions. [2018-02-02 20:23:25,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-02 20:23:25,743 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:23:25,743 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:23:25,743 INFO L371 AbstractCegarLoop]: === Iteration 2 === [barErr1RequiresViolation, barErr0RequiresViolation, fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-02 20:23:25,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1969953325, now seen corresponding path program 1 times [2018-02-02 20:23:25,744 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:23:25,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:23:25,809 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:23:25,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:23:25,837 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 20:23:25,837 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 20:23:25,837 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:23:25,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:23:25,837 INFO L182 omatonBuilderFactory]: Interpolants [208#(= main_~i~2 0), 206#true, 207#false] [2018-02-02 20:23:25,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:23:25,839 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-02 20:23:25,839 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-02 20:23:25,839 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 20:23:25,839 INFO L87 Difference]: Start difference. First operand 65 states and 70 transitions. Second operand 3 states. [2018-02-02 20:23:25,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:23:25,871 INFO L93 Difference]: Finished difference Result 71 states and 76 transitions. [2018-02-02 20:23:25,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-02 20:23:25,872 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-02-02 20:23:25,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:23:25,873 INFO L225 Difference]: With dead ends: 71 [2018-02-02 20:23:25,873 INFO L226 Difference]: Without dead ends: 71 [2018-02-02 20:23:25,874 INFO L554 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 [2018-02-02 20:23:25,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-02-02 20:23:25,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 64. [2018-02-02 20:23:25,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-02-02 20:23:25,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2018-02-02 20:23:25,879 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 14 [2018-02-02 20:23:25,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:23:25,880 INFO L432 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2018-02-02 20:23:25,880 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-02 20:23:25,880 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2018-02-02 20:23:25,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-02-02 20:23:25,880 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:23:25,880 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:23:25,880 INFO L371 AbstractCegarLoop]: === Iteration 3 === [barErr1RequiresViolation, barErr0RequiresViolation, fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-02 20:23:25,880 INFO L82 PathProgramCache]: Analyzing trace with hash -1297061679, now seen corresponding path program 1 times [2018-02-02 20:23:25,881 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:23:25,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:23:25,893 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:23:25,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:23:25,959 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 20:23:25,959 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-02 20:23:25,959 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:23:25,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:23:25,960 INFO L182 omatonBuilderFactory]: Interpolants [344#true, 345#false, 346#(= 0 main_~i~2), 347#(= 0 |foo_#in~size|), 348#(= foo_~size 0), 349#(and (= foo_~size 0) (= foo_~i~1 0))] [2018-02-02 20:23:25,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:23:25,960 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-02 20:23:25,960 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-02 20:23:25,961 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-02-02 20:23:25,961 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand 6 states. [2018-02-02 20:23:26,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:23:26,076 INFO L93 Difference]: Finished difference Result 85 states and 91 transitions. [2018-02-02 20:23:26,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 20:23:26,077 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-02-02 20:23:26,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:23:26,078 INFO L225 Difference]: With dead ends: 85 [2018-02-02 20:23:26,078 INFO L226 Difference]: Without dead ends: 85 [2018-02-02 20:23:26,078 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-02-02 20:23:26,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-02-02 20:23:26,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 79. [2018-02-02 20:23:26,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-02-02 20:23:26,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 85 transitions. [2018-02-02 20:23:26,085 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 85 transitions. Word has length 17 [2018-02-02 20:23:26,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:23:26,085 INFO L432 AbstractCegarLoop]: Abstraction has 79 states and 85 transitions. [2018-02-02 20:23:26,085 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-02 20:23:26,085 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 85 transitions. [2018-02-02 20:23:26,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-02-02 20:23:26,086 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:23:26,086 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:23:26,086 INFO L371 AbstractCegarLoop]: === Iteration 4 === [barErr1RequiresViolation, barErr0RequiresViolation, fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-02 20:23:26,086 INFO L82 PathProgramCache]: Analyzing trace with hash -1600184185, now seen corresponding path program 1 times [2018-02-02 20:23:26,087 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:23:26,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 20:23:26,101 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 20:23:26,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:23:26,147 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 20:23:26,147 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 20:23:26,147 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 20:23:26,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:23:26,147 INFO L182 omatonBuilderFactory]: Interpolants [518#true, 519#false, 520#(= 1 (select |#valid| |foo_~#a~0.base|)), 521#(= 1 (select |#valid| |bar_#in~b.base|)), 522#(= 1 (select |#valid| bar_~b.base))] [2018-02-02 20:23:26,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 20:23:26,148 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 20:23:26,148 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 20:23:26,148 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 20:23:26,148 INFO L87 Difference]: Start difference. First operand 79 states and 85 transitions. Second operand 5 states. [2018-02-02 20:23:26,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 20:23:26,229 INFO L93 Difference]: Finished difference Result 77 states and 83 transitions. [2018-02-02 20:23:26,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 20:23:26,230 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2018-02-02 20:23:26,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 20:23:26,232 INFO L225 Difference]: With dead ends: 77 [2018-02-02 20:23:26,232 INFO L226 Difference]: Without dead ends: 77 [2018-02-02 20:23:26,233 INFO L554 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 [2018-02-02 20:23:26,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-02-02 20:23:26,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2018-02-02 20:23:26,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-02-02 20:23:26,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 83 transitions. [2018-02-02 20:23:26,238 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 83 transitions. Word has length 21 [2018-02-02 20:23:26,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 20:23:26,239 INFO L432 AbstractCegarLoop]: Abstraction has 77 states and 83 transitions. [2018-02-02 20:23:26,239 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 20:23:26,239 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 83 transitions. [2018-02-02 20:23:26,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-02-02 20:23:26,239 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:23:26,240 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:23:26,240 INFO L371 AbstractCegarLoop]: === Iteration 5 === [barErr1RequiresViolation, barErr0RequiresViolation, fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-02 20:23:26,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1600184184, now seen corresponding path program 1 times [2018-02-02 20:23:26,241 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 20:23:26,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-02 20:23:26,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-02 20:23:26,283 INFO L410 BasicCegarLoop]: Counterexample might be feasible [2018-02-02 20:23:26,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.02 08:23:26 BoogieIcfgContainer [2018-02-02 20:23:26,298 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-02 20:23:26,299 INFO L168 Benchmark]: Toolchain (without parser) took 1137.29 ms. Allocated memory was 402.1 MB in the beginning and 609.7 MB in the end (delta: 207.6 MB). Free memory was 358.8 MB in the beginning and 531.3 MB in the end (delta: -172.5 MB). Peak memory consumption was 35.1 MB. Max. memory is 5.3 GB. [2018-02-02 20:23:26,299 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 402.1 MB. Free memory is still 364.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 20:23:26,299 INFO L168 Benchmark]: CACSL2BoogieTranslator took 126.48 ms. Allocated memory is still 402.1 MB. Free memory was 358.8 MB in the beginning and 350.9 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 5.3 GB. [2018-02-02 20:23:26,300 INFO L168 Benchmark]: Boogie Preprocessor took 23.58 ms. Allocated memory is still 402.1 MB. Free memory was 350.9 MB in the beginning and 348.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-02 20:23:26,300 INFO L168 Benchmark]: RCFGBuilder took 209.89 ms. Allocated memory is still 402.1 MB. Free memory was 348.2 MB in the beginning and 328.4 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 5.3 GB. [2018-02-02 20:23:26,300 INFO L168 Benchmark]: TraceAbstraction took 774.99 ms. Allocated memory was 402.1 MB in the beginning and 609.7 MB in the end (delta: 207.6 MB). Free memory was 328.4 MB in the beginning and 531.3 MB in the end (delta: -202.9 MB). Peak memory consumption was 4.7 MB. Max. memory is 5.3 GB. [2018-02-02 20:23:26,301 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 402.1 MB. Free memory is still 364.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 126.48 ms. Allocated memory is still 402.1 MB. Free memory was 358.8 MB in the beginning and 350.9 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 23.58 ms. Allocated memory is still 402.1 MB. Free memory was 350.9 MB in the beginning and 348.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 209.89 ms. Allocated memory is still 402.1 MB. Free memory was 348.2 MB in the beginning and 328.4 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 5.3 GB. * TraceAbstraction took 774.99 ms. Allocated memory was 402.1 MB in the beginning and 609.7 MB in the end (delta: 207.6 MB). Free memory was 328.4 MB in the beginning and 531.3 MB in the end (delta: -202.9 MB). Peak memory consumption was 4.7 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={403:0}] [L33] i = 0 VAL [b={403:0}, i=0] [L33] COND TRUE i < 100 VAL [b={403:0}, i=0] [L34] CALL foo(i, b, i) VAL [\old(n)=0, \old(size)=0, b={403:0}] [L21] FCALL int a[n], i; [L22] i = 0 VAL [\old(n)=0, \old(size)=0, a={401:0}, b={403:0}, b={403:0}, i=0, n=0, size=0] [L22] COND FALSE !(i < size) VAL [\old(n)=0, \old(size)=0, a={401:0}, b={403:0}, b={403:0}, i=0, n=0, size=0] [L25] CALL bar(a, size + 1) VAL [\old(size)=1, b={401:0}] [L12] int res = 0, i; [L13] i = 0 VAL [\old(size)=1, b={401:0}, b={401:0}, i=0, res=0, size=1] [L13] COND TRUE i < size VAL [\old(size)=1, b={401:0}, b={401:0}, i=0, res=0, size=1] [L14] FCALL b[i] VAL [\old(size)=1, b={401:0}, b={401:0}, i=0, res=0, size=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 68 locations, 11 error locations. UNSAFE Result, 0.7s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 239 SDtfs, 94 SDslu, 306 SDs, 0 SdLazy, 125 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred 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, 13 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 2045 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 /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength2_false-valid-deref-read.c_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_20-23-26-307.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength2_false-valid-deref-read.c_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-02_20-23-26-307.csv Received shutdown request...