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_z3.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength2_false-valid-deref-read.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c17473d-m [2018-02-04 20:39:38,702 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 20:39:38,703 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 20:39:38,713 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 20:39:38,714 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 20:39:38,714 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 20:39:38,715 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 20:39:38,717 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 20:39:38,718 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 20:39:38,719 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 20:39:38,719 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 20:39:38,719 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 20:39:38,720 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 20:39:38,721 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 20:39:38,722 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 20:39:38,724 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 20:39:38,726 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 20:39:38,727 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 20:39:38,728 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 20:39:38,729 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 20:39:38,731 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 20:39:38,731 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 20:39:38,732 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 20:39:38,732 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 20:39:38,733 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 20:39:38,734 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 20:39:38,734 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 20:39:38,735 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 20:39:38,735 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 20:39:38,735 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 20:39:38,736 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 20:39:38,736 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf [2018-02-04 20:39:38,746 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 20:39:38,746 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 20:39:38,747 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 20:39:38,748 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 20:39:38,748 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 20:39:38,748 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 20:39:38,748 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 20:39:38,748 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 20:39:38,748 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 20:39:38,749 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 20:39:38,749 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 20:39:38,749 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 20:39:38,749 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 20:39:38,749 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 20:39:38,749 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 20:39:38,750 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 20:39:38,750 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 20:39:38,750 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 20:39:38,750 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 20:39:38,750 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 20:39:38,750 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 20:39:38,751 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-02-04 20:39:38,751 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-02-04 20:39:38,751 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:39:38,779 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 20:39:38,794 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 20:39:38,798 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 20:39:38,800 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 20:39:38,800 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 20:39:38,801 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength2_false-valid-deref-read.c [2018-02-04 20:39:38,919 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 20:39:38,921 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 20:39:38,921 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 20:39:38,922 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 20:39:38,928 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 20:39:38,929 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 08:39:38" (1/1) ... [2018-02-04 20:39:38,932 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38fea195 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:39:38, skipping insertion in model container [2018-02-04 20:39:38,932 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 08:39:38" (1/1) ... [2018-02-04 20:39:38,943 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 20:39:38,955 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 20:39:39,043 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 20:39:39,058 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 20:39:39,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:39:39 WrapperNode [2018-02-04 20:39:39,063 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 20:39:39,064 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 20:39:39,064 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 20:39:39,064 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 20:39:39,072 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:39:39" (1/1) ... [2018-02-04 20:39:39,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:39:39" (1/1) ... [2018-02-04 20:39:39,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:39:39" (1/1) ... [2018-02-04 20:39:39,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:39:39" (1/1) ... [2018-02-04 20:39:39,082 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:39:39" (1/1) ... [2018-02-04 20:39:39,085 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:39:39" (1/1) ... [2018-02-04 20:39:39,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:39:39" (1/1) ... [2018-02-04 20:39:39,088 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 20:39:39,088 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 20:39:39,088 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 20:39:39,088 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 20:39:39,089 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:39:39" (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 [2018-02-04 20:39:39,128 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 20:39:39,128 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 20:39:39,128 INFO L136 BoogieDeclarations]: Found implementation of procedure bar [2018-02-04 20:39:39,128 INFO L136 BoogieDeclarations]: Found implementation of procedure foo [2018-02-04 20:39:39,129 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 20:39:39,129 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 20:39:39,129 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 20:39:39,129 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 20:39:39,129 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 20:39:39,129 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 20:39:39,129 INFO L128 BoogieDeclarations]: Found specification of procedure bar [2018-02-04 20:39:39,129 INFO L128 BoogieDeclarations]: Found specification of procedure foo [2018-02-04 20:39:39,130 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 20:39:39,130 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 20:39:39,130 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 20:39:39,281 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 20:39:39,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 08:39:39 BoogieIcfgContainer [2018-02-04 20:39:39,282 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 20:39:39,282 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 20:39:39,282 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 20:39:39,284 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 20:39:39,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 08:39:38" (1/3) ... [2018-02-04 20:39:39,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28ecc970 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 08:39:39, skipping insertion in model container [2018-02-04 20:39:39,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:39:39" (2/3) ... [2018-02-04 20:39:39,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28ecc970 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 08:39:39, skipping insertion in model container [2018-02-04 20:39:39,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 08:39:39" (3/3) ... [2018-02-04 20:39:39,286 INFO L107 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength2_false-valid-deref-read.c [2018-02-04 20:39:39,291 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-04 20:39:39,295 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-02-04 20:39:39,318 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 20:39:39,318 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 20:39:39,319 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-02-04 20:39:39,319 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-04 20:39:39,319 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 20:39:39,319 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 20:39:39,319 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 20:39:39,319 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 20:39:39,319 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 20:39:39,328 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2018-02-04 20:39:39,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-02-04 20:39:39,333 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:39:39,334 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:39:39,334 INFO L371 AbstractCegarLoop]: === Iteration 1 === [barErr1RequiresViolation, barErr0RequiresViolation, fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-04 20:39:39,337 INFO L82 PathProgramCache]: Analyzing trace with hash 1613294992, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:39:39,353 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:39:39,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:39,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:39,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:39:39,431 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:39:39,432 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 20:39:39,432 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:39:39,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:39:39,433 INFO L182 omatonBuilderFactory]: Interpolants [71#true, 72#false, 76#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 20:39:39,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:39:39,434 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 20:39:39,441 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 20:39:39,441 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 20:39:39,443 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 3 states. [2018-02-04 20:39:39,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:39:39,544 INFO L93 Difference]: Finished difference Result 68 states and 73 transitions. [2018-02-04 20:39:39,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 20:39:39,545 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-02-04 20:39:39,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:39:39,552 INFO L225 Difference]: With dead ends: 68 [2018-02-04 20:39:39,552 INFO L226 Difference]: Without dead ends: 65 [2018-02-04 20:39:39,553 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 20:39:39,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-02-04 20:39:39,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-02-04 20:39:39,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-02-04 20:39:39,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 70 transitions. [2018-02-04 20:39:39,579 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 70 transitions. Word has length 13 [2018-02-04 20:39:39,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:39:39,579 INFO L432 AbstractCegarLoop]: Abstraction has 65 states and 70 transitions. [2018-02-04 20:39:39,579 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 20:39:39,579 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 70 transitions. [2018-02-04 20:39:39,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-04 20:39:39,580 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:39:39,580 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:39:39,580 INFO L371 AbstractCegarLoop]: === Iteration 2 === [barErr1RequiresViolation, barErr0RequiresViolation, fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-04 20:39:39,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1969953325, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:39:39,584 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:39:39,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:39,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:39:39,629 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:39:39,629 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 20:39:39,629 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:39:39,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:39:39,630 INFO L182 omatonBuilderFactory]: Interpolants [210#true, 211#false, 215#(< main_~i~2 100), 216#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 20:39:39,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:39:39,631 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 20:39:39,632 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 20:39:39,632 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 20:39:39,632 INFO L87 Difference]: Start difference. First operand 65 states and 70 transitions. Second operand 4 states. [2018-02-04 20:39:39,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:39:39,745 INFO L93 Difference]: Finished difference Result 64 states and 68 transitions. [2018-02-04 20:39:39,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 20:39:39,745 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-02-04 20:39:39,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:39:39,746 INFO L225 Difference]: With dead ends: 64 [2018-02-04 20:39:39,746 INFO L226 Difference]: Without dead ends: 64 [2018-02-04 20:39:39,747 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 20:39:39,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-02-04 20:39:39,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-02-04 20:39:39,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-02-04 20:39:39,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2018-02-04 20:39:39,753 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 14 [2018-02-04 20:39:39,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:39:39,753 INFO L432 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2018-02-04 20:39:39,753 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 20:39:39,753 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2018-02-04 20:39:39,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-02-04 20:39:39,754 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:39:39,754 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:39:39,754 INFO L371 AbstractCegarLoop]: === Iteration 3 === [barErr1RequiresViolation, barErr0RequiresViolation, fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-04 20:39:39,754 INFO L82 PathProgramCache]: Analyzing trace with hash -1297061679, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:39:39,756 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:39:39,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:39,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:39:39,838 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:39:39,839 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-04 20:39:39,839 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:39:39,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:39:39,839 INFO L182 omatonBuilderFactory]: Interpolants [352#(= 0 foo_~size), 353#(<= foo_~size foo_~i~1), 354#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 345#true, 346#false, 350#(= 0 main_~i~2), 351#(= 0 |foo_#in~size|)] [2018-02-04 20:39:39,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:39:39,840 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-04 20:39:39,840 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-04 20:39:39,841 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-02-04 20:39:39,841 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand 7 states. [2018-02-04 20:39:40,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:39:40,044 INFO L93 Difference]: Finished difference Result 85 states and 91 transitions. [2018-02-04 20:39:40,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-02-04 20:39:40,045 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2018-02-04 20:39:40,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:39:40,048 INFO L225 Difference]: With dead ends: 85 [2018-02-04 20:39:40,048 INFO L226 Difference]: Without dead ends: 85 [2018-02-04 20:39:40,048 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2018-02-04 20:39:40,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-02-04 20:39:40,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 79. [2018-02-04 20:39:40,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-02-04 20:39:40,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 85 transitions. [2018-02-04 20:39:40,058 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 85 transitions. Word has length 17 [2018-02-04 20:39:40,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:39:40,058 INFO L432 AbstractCegarLoop]: Abstraction has 79 states and 85 transitions. [2018-02-04 20:39:40,058 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-04 20:39:40,059 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 85 transitions. [2018-02-04 20:39:40,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-02-04 20:39:40,059 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:39:40,059 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] [2018-02-04 20:39:40,059 INFO L371 AbstractCegarLoop]: === Iteration 4 === [barErr1RequiresViolation, barErr0RequiresViolation, fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-04 20:39:40,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1600184185, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:39:40,064 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:39:40,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:40,077 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 20:39:40,092 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:39:40,092 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:39:40,093 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:39:40,093 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:39:40,159 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |c_#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp)) is different from true [2018-02-04 20:39:40,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:39:40,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:39:40,254 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:39:40,254 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-04 20:39:40,254 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:39:40,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:39:40,255 INFO L182 omatonBuilderFactory]: Interpolants [528#false, 532#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp)), 533#(= 1 (select |#valid| |foo_~#a~0.base|)), 534#(= 1 (select |#valid| |bar_#in~b.base|)), 535#(= 1 (select |#valid| bar_~b.base)), 536#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 527#true] [2018-02-04 20:39:40,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:39:40,255 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-04 20:39:40,255 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-04 20:39:40,255 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=22, Unknown=1, NotChecked=8, Total=42 [2018-02-04 20:39:40,256 INFO L87 Difference]: Start difference. First operand 79 states and 85 transitions. Second operand 7 states. [2018-02-04 20:39:40,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:39:40,400 INFO L93 Difference]: Finished difference Result 77 states and 83 transitions. [2018-02-04 20:39:40,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 20:39:40,402 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-02-04 20:39:40,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:39:40,404 INFO L225 Difference]: With dead ends: 77 [2018-02-04 20:39:40,404 INFO L226 Difference]: Without dead ends: 77 [2018-02-04 20:39:40,405 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=4, NotChecked=14, Total=90 [2018-02-04 20:39:40,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-02-04 20:39:40,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2018-02-04 20:39:40,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-02-04 20:39:40,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 83 transitions. [2018-02-04 20:39:40,414 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 83 transitions. Word has length 21 [2018-02-04 20:39:40,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:39:40,414 INFO L432 AbstractCegarLoop]: Abstraction has 77 states and 83 transitions. [2018-02-04 20:39:40,414 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-04 20:39:40,414 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 83 transitions. [2018-02-04 20:39:40,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-02-04 20:39:40,419 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:39:40,419 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] [2018-02-04 20:39:40,419 INFO L371 AbstractCegarLoop]: === Iteration 5 === [barErr1RequiresViolation, barErr0RequiresViolation, fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-04 20:39:40,419 INFO L82 PathProgramCache]: Analyzing trace with hash -1600184184, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:39:40,423 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:39:40,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-04 20:39:40,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-04 20:39:40,523 INFO L410 BasicCegarLoop]: Counterexample might be feasible [2018-02-04 20:39:40,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.02 08:39:40 BoogieIcfgContainer [2018-02-04 20:39:40,537 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-04 20:39:40,538 INFO L168 Benchmark]: Toolchain (without parser) took 1618.04 ms. Allocated memory was 401.6 MB in the beginning and 618.7 MB in the end (delta: 217.1 MB). Free memory was 355.4 MB in the beginning and 596.1 MB in the end (delta: -240.6 MB). Peak memory consumption was 63.0 MB. Max. memory is 5.3 GB. [2018-02-04 20:39:40,539 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 401.6 MB. Free memory is still 360.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 20:39:40,539 INFO L168 Benchmark]: CACSL2BoogieTranslator took 142.02 ms. Allocated memory is still 401.6 MB. Free memory was 355.4 MB in the beginning and 347.5 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 5.3 GB. [2018-02-04 20:39:40,539 INFO L168 Benchmark]: Boogie Preprocessor took 24.37 ms. Allocated memory is still 401.6 MB. Free memory was 347.5 MB in the beginning and 344.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-04 20:39:40,540 INFO L168 Benchmark]: RCFGBuilder took 193.50 ms. Allocated memory is still 401.6 MB. Free memory was 344.9 MB in the beginning and 325.0 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 5.3 GB. [2018-02-04 20:39:40,540 INFO L168 Benchmark]: TraceAbstraction took 1255.15 ms. Allocated memory was 401.6 MB in the beginning and 618.7 MB in the end (delta: 217.1 MB). Free memory was 325.0 MB in the beginning and 596.1 MB in the end (delta: -271.1 MB). Peak memory consumption was 32.6 MB. Max. memory is 5.3 GB. [2018-02-04 20:39:40,541 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 401.6 MB. Free memory is still 360.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 142.02 ms. Allocated memory is still 401.6 MB. Free memory was 355.4 MB in the beginning and 347.5 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 24.37 ms. Allocated memory is still 401.6 MB. Free memory was 347.5 MB in the beginning and 344.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 193.50 ms. Allocated memory is still 401.6 MB. Free memory was 344.9 MB in the beginning and 325.0 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1255.15 ms. Allocated memory was 401.6 MB in the beginning and 618.7 MB in the end (delta: 217.1 MB). Free memory was 325.0 MB in the beginning and 596.1 MB in the end (delta: -271.1 MB). Peak memory consumption was 32.6 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={5:0}] [L33] i = 0 VAL [b={5:0}, i=0] [L33] COND TRUE i < 100 VAL [b={5:0}, i=0] [L34] CALL foo(i, b, i) VAL [\old(n)=0, \old(size)=0, b={5:0}] [L21] FCALL int a[n], i; [L22] i = 0 VAL [\old(n)=0, \old(size)=0, a={6:0}, b={5:0}, b={5:0}, i=0, n=0, size=0] [L22] COND FALSE !(i < size) VAL [\old(n)=0, \old(size)=0, a={6:0}, b={5:0}, b={5:0}, i=0, n=0, size=0] [L25] CALL bar(a, size + 1) VAL [\old(size)=1, b={6:0}] [L12] int res = 0, i; [L13] i = 0 VAL [\old(size)=1, b={6:0}, b={6:0}, i=0, res=0, size=1] [L13] COND TRUE i < size VAL [\old(size)=1, b={6:0}, b={6:0}, i=0, res=0, size=1] [L14] FCALL b[i] VAL [\old(size)=1, b={6:0}, b={6:0}, i=0, res=0, size=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 68 locations, 11 error locations. UNSAFE Result, 1.2s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 220 SDtfs, 153 SDslu, 262 SDs, 0 SdLazy, 434 SolverSat, 25 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s 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, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 61 ConstructedInterpolants, 2 QuantifiedInterpolants, 2946 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_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_20-39-40-547.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_z3.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-04_20-39-40-547.csv Received shutdown request...