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/cav18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength2_false-valid-deref-write.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-26d9e06-m [2018-02-02 10:10:35,796 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 10:10:35,798 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 10:10:35,811 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 10:10:35,811 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 10:10:35,812 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 10:10:35,812 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 10:10:35,814 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 10:10:35,816 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 10:10:35,817 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 10:10:35,817 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 10:10:35,818 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 10:10:35,819 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 10:10:35,820 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 10:10:35,820 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 10:10:35,822 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 10:10:35,824 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 10:10:35,826 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 10:10:35,827 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 10:10:35,828 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 10:10:35,829 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-02 10:10:35,830 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-02 10:10:35,830 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-02 10:10:35,831 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-02 10:10:35,831 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-02 10:10:35,832 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-02 10:10:35,832 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-02 10:10:35,833 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-02 10:10:35,833 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-02 10:10:35,833 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-02 10:10:35,834 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-02 10:10:35,834 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cav18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf [2018-02-02 10:10:35,843 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 10:10:35,844 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 10:10:35,845 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 10:10:35,845 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 10:10:35,845 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 10:10:35,845 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 10:10:35,845 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 10:10:35,845 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 10:10:35,845 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 10:10:35,845 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 10:10:35,845 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 10:10:35,846 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 10:10:35,846 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 10:10:35,846 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 10:10:35,846 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 10:10:35,846 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 10:10:35,846 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 10:10:35,846 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 10:10:35,846 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 10:10:35,846 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 10:10:35,846 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 10:10:35,847 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 10:10:35,847 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-02-02 10:10:35,878 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 10:10:35,887 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 10:10:35,890 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 10:10:35,891 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 10:10:35,891 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 10:10:35,892 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength2_false-valid-deref-write.c [2018-02-02 10:10:35,999 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 10:10:36,001 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 10:10:36,001 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 10:10:36,002 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 10:10:36,007 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 10:10:36,008 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 10:10:35" (1/1) ... [2018-02-02 10:10:36,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18a827c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:10:36, skipping insertion in model container [2018-02-02 10:10:36,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 10:10:35" (1/1) ... [2018-02-02 10:10:36,026 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 10:10:36,043 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 10:10:36,133 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 10:10:36,145 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 10:10:36,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:10:36 WrapperNode [2018-02-02 10:10:36,150 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 10:10:36,150 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 10:10:36,150 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 10:10:36,150 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 10:10:36,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:10:36" (1/1) ... [2018-02-02 10:10:36,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:10:36" (1/1) ... [2018-02-02 10:10:36,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:10:36" (1/1) ... [2018-02-02 10:10:36,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:10:36" (1/1) ... [2018-02-02 10:10:36,167 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:10:36" (1/1) ... [2018-02-02 10:10:36,170 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:10:36" (1/1) ... [2018-02-02 10:10:36,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:10:36" (1/1) ... [2018-02-02 10:10:36,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 10:10:36,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 10:10:36,172 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 10:10:36,172 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 10:10:36,173 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:10:36" (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 10:10:36,207 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 10:10:36,207 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 10:10:36,207 INFO L136 BoogieDeclarations]: Found implementation of procedure bar [2018-02-02 10:10:36,207 INFO L136 BoogieDeclarations]: Found implementation of procedure foo [2018-02-02 10:10:36,207 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 10:10:36,208 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-02 10:10:36,208 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-02 10:10:36,208 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 10:10:36,208 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 10:10:36,208 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 10:10:36,208 INFO L128 BoogieDeclarations]: Found specification of procedure bar [2018-02-02 10:10:36,208 INFO L128 BoogieDeclarations]: Found specification of procedure foo [2018-02-02 10:10:36,208 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 10:10:36,208 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 10:10:36,208 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 10:10:36,368 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 10:10:36,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 10:10:36 BoogieIcfgContainer [2018-02-02 10:10:36,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 10:10:36,369 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 10:10:36,369 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 10:10:36,371 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 10:10:36,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 10:10:35" (1/3) ... [2018-02-02 10:10:36,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c14ece2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 10:10:36, skipping insertion in model container [2018-02-02 10:10:36,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:10:36" (2/3) ... [2018-02-02 10:10:36,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c14ece2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 10:10:36, skipping insertion in model container [2018-02-02 10:10:36,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 10:10:36" (3/3) ... [2018-02-02 10:10:36,374 INFO L107 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength2_false-valid-deref-write.c [2018-02-02 10:10:36,380 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-02 10:10:36,384 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-02-02 10:10:36,413 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 10:10:36,413 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 10:10:36,413 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-02-02 10:10:36,413 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-02 10:10:36,413 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 10:10:36,413 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 10:10:36,414 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 10:10:36,414 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 10:10:36,414 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 10:10:36,426 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2018-02-02 10:10:36,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-02-02 10:10:36,435 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:10:36,435 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:10:36,436 INFO L371 AbstractCegarLoop]: === Iteration 1 === [barErr1RequiresViolation, barErr0RequiresViolation, fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-02 10:10:36,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1613294992, now seen corresponding path program 1 times [2018-02-02 10:10:36,479 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:10:36,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:10:36,502 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:10:36,527 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 10:10:36,529 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:10:36,529 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-02 10:10:36,530 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:10:36,531 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 10:10:36,531 INFO L182 omatonBuilderFactory]: Interpolants [71#true, 72#false] [2018-02-02 10:10:36,531 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 10:10:36,532 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-02-02 10:10:36,540 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-02-02 10:10:36,540 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-02-02 10:10:36,542 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 2 states. [2018-02-02 10:10:36,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:10:36,557 INFO L93 Difference]: Finished difference Result 68 states and 73 transitions. [2018-02-02 10:10:36,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-02-02 10:10:36,558 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-02-02 10:10:36,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:10:36,565 INFO L225 Difference]: With dead ends: 68 [2018-02-02 10:10:36,566 INFO L226 Difference]: Without dead ends: 65 [2018-02-02 10:10:36,567 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 10:10:36,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-02-02 10:10:36,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-02-02 10:10:36,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-02-02 10:10:36,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 70 transitions. [2018-02-02 10:10:36,595 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 70 transitions. Word has length 13 [2018-02-02 10:10:36,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:10:36,595 INFO L432 AbstractCegarLoop]: Abstraction has 65 states and 70 transitions. [2018-02-02 10:10:36,595 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-02-02 10:10:36,595 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 70 transitions. [2018-02-02 10:10:36,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-02 10:10:36,596 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:10:36,596 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:10:36,596 INFO L371 AbstractCegarLoop]: === Iteration 2 === [barErr1RequiresViolation, barErr0RequiresViolation, fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-02 10:10:36,596 INFO L82 PathProgramCache]: Analyzing trace with hash -1969953325, now seen corresponding path program 1 times [2018-02-02 10:10:36,597 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:10:36,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:10:36,610 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:10:36,697 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 10:10:36,697 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:10:36,698 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 10:10:36,698 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:10:36,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:10:36,698 INFO L182 omatonBuilderFactory]: Interpolants [208#(= main_~i~2 0), 206#true, 207#false] [2018-02-02 10:10:36,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:10:36,699 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-02 10:10:36,700 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-02 10:10:36,700 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 10:10:36,700 INFO L87 Difference]: Start difference. First operand 65 states and 70 transitions. Second operand 3 states. [2018-02-02 10:10:36,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:10:36,724 INFO L93 Difference]: Finished difference Result 71 states and 76 transitions. [2018-02-02 10:10:36,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-02 10:10:36,725 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-02-02 10:10:36,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:10:36,727 INFO L225 Difference]: With dead ends: 71 [2018-02-02 10:10:36,727 INFO L226 Difference]: Without dead ends: 71 [2018-02-02 10:10:36,727 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 10:10:36,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-02-02 10:10:36,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 64. [2018-02-02 10:10:36,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-02-02 10:10:36,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2018-02-02 10:10:36,736 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 14 [2018-02-02 10:10:36,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:10:36,737 INFO L432 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2018-02-02 10:10:36,737 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-02 10:10:36,737 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2018-02-02 10:10:36,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-02-02 10:10:36,738 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:10:36,738 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 10:10:36,738 INFO L371 AbstractCegarLoop]: === Iteration 3 === [barErr1RequiresViolation, barErr0RequiresViolation, fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-02 10:10:36,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1297061679, now seen corresponding path program 1 times [2018-02-02 10:10:36,739 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:10:36,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:10:36,760 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:10:36,860 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 10:10:36,860 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:10:36,860 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 10:10:36,860 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:10:36,861 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 10:10:36,861 INFO L182 omatonBuilderFactory]: Interpolants [344#true, 345#false, 346#(= (select |#valid| |main_~#b~0.base|) 1), 347#(= 1 (select |#valid| |foo_#in~b.base|)), 348#(= (select |#valid| foo_~b.base) 1)] [2018-02-02 10:10:36,861 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 10:10:36,861 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 10:10:36,862 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 10:10:36,862 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 10:10:36,862 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand 5 states. [2018-02-02 10:10:36,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:10:36,941 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2018-02-02 10:10:36,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 10:10:36,942 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-02-02 10:10:36,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:10:36,943 INFO L225 Difference]: With dead ends: 62 [2018-02-02 10:10:36,943 INFO L226 Difference]: Without dead ends: 62 [2018-02-02 10:10:36,943 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 1 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 10:10:36,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-02-02 10:10:36,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2018-02-02 10:10:36,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-02-02 10:10:36,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions. [2018-02-02 10:10:36,947 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 17 [2018-02-02 10:10:36,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:10:36,948 INFO L432 AbstractCegarLoop]: Abstraction has 62 states and 66 transitions. [2018-02-02 10:10:36,948 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 10:10:36,948 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions. [2018-02-02 10:10:36,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-02-02 10:10:36,949 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:10:36,949 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 10:10:36,949 INFO L371 AbstractCegarLoop]: === Iteration 4 === [barErr1RequiresViolation, barErr0RequiresViolation, fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-02 10:10:36,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1297061678, now seen corresponding path program 1 times [2018-02-02 10:10:36,950 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:10:36,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:10:36,964 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:10:37,036 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 10:10:37,036 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:10:37,037 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-02 10:10:37,037 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:10:37,037 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 10:10:37,037 INFO L182 omatonBuilderFactory]: Interpolants [480#(and (= (select |#length| foo_~b.base) 400) (= foo_~b.offset 0)), 481#(and (= (select |#length| foo_~b.base) 400) (= foo_~b.offset 0) (= foo_~i~1 0)), 475#true, 476#false, 477#(and (= 400 (select |#length| |main_~#b~0.base|)) (= (select |#valid| |main_~#b~0.base|) 1) (= 0 |main_~#b~0.offset|)), 478#(and (= 0 |foo_#in~b.offset|) (= (select |#valid| |foo_#in~b.base|) 1) (= 400 (select |#length| |foo_#in~b.base|))), 479#(and (= 400 (select |#length| foo_~b.base)) (= (select |#valid| foo_~b.base) 1) (= foo_~b.offset 0))] [2018-02-02 10:10:37,037 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 10:10:37,037 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-02 10:10:37,038 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-02 10:10:37,038 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-02-02 10:10:37,038 INFO L87 Difference]: Start difference. First operand 62 states and 66 transitions. Second operand 7 states. [2018-02-02 10:10:37,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:10:37,198 INFO L93 Difference]: Finished difference Result 101 states and 111 transitions. [2018-02-02 10:10:37,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-02 10:10:37,198 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2018-02-02 10:10:37,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:10:37,201 INFO L225 Difference]: With dead ends: 101 [2018-02-02 10:10:37,201 INFO L226 Difference]: Without dead ends: 101 [2018-02-02 10:10:37,201 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-02-02 10:10:37,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2018-02-02 10:10:37,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 84. [2018-02-02 10:10:37,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-02-02 10:10:37,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 95 transitions. [2018-02-02 10:10:37,207 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 95 transitions. Word has length 17 [2018-02-02 10:10:37,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:10:37,207 INFO L432 AbstractCegarLoop]: Abstraction has 84 states and 95 transitions. [2018-02-02 10:10:37,207 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-02 10:10:37,207 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 95 transitions. [2018-02-02 10:10:37,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-02-02 10:10:37,208 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:10:37,208 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:10:37,208 INFO L371 AbstractCegarLoop]: === Iteration 5 === [barErr1RequiresViolation, barErr0RequiresViolation, fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-02 10:10:37,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1554206377, now seen corresponding path program 1 times [2018-02-02 10:10:37,209 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:10:37,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:10:37,217 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:10:37,234 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 10:10:37,234 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:10:37,234 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-02 10:10:37,235 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:10:37,235 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 10:10:37,235 INFO L182 omatonBuilderFactory]: Interpolants [672#false, 673#(= 1 (select |#valid| |foo_~#a~0.base|)), 671#true] [2018-02-02 10:10:37,235 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 10:10:37,235 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-02 10:10:37,236 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-02 10:10:37,236 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 10:10:37,236 INFO L87 Difference]: Start difference. First operand 84 states and 95 transitions. Second operand 3 states. [2018-02-02 10:10:37,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:10:37,269 INFO L93 Difference]: Finished difference Result 83 states and 93 transitions. [2018-02-02 10:10:37,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-02 10:10:37,270 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-02-02 10:10:37,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:10:37,271 INFO L225 Difference]: With dead ends: 83 [2018-02-02 10:10:37,271 INFO L226 Difference]: Without dead ends: 83 [2018-02-02 10:10:37,272 INFO L554 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 [2018-02-02 10:10:37,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-02-02 10:10:37,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2018-02-02 10:10:37,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-02-02 10:10:37,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 93 transitions. [2018-02-02 10:10:37,277 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 93 transitions. Word has length 18 [2018-02-02 10:10:37,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:10:37,277 INFO L432 AbstractCegarLoop]: Abstraction has 83 states and 93 transitions. [2018-02-02 10:10:37,278 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-02 10:10:37,278 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 93 transitions. [2018-02-02 10:10:37,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-02-02 10:10:37,278 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:10:37,278 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:10:37,279 INFO L371 AbstractCegarLoop]: === Iteration 6 === [barErr1RequiresViolation, barErr0RequiresViolation, fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-02 10:10:37,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1554206376, now seen corresponding path program 1 times [2018-02-02 10:10:37,279 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:10:37,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-02 10:10:37,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-02 10:10:37,324 INFO L410 BasicCegarLoop]: Counterexample might be feasible [2018-02-02 10:10:37,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.02 10:10:37 BoogieIcfgContainer [2018-02-02 10:10:37,342 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-02 10:10:37,343 INFO L168 Benchmark]: Toolchain (without parser) took 1343.02 ms. Allocated memory was 385.4 MB in the beginning and 578.3 MB in the end (delta: 192.9 MB). Free memory was 340.6 MB in the beginning and 466.1 MB in the end (delta: -125.5 MB). Peak memory consumption was 67.4 MB. Max. memory is 5.3 GB. [2018-02-02 10:10:37,344 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 385.4 MB. Free memory is still 346.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 10:10:37,344 INFO L168 Benchmark]: CACSL2BoogieTranslator took 148.66 ms. Allocated memory is still 385.4 MB. Free memory was 340.6 MB in the beginning and 332.7 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 5.3 GB. [2018-02-02 10:10:37,344 INFO L168 Benchmark]: Boogie Preprocessor took 21.67 ms. Allocated memory is still 385.4 MB. Free memory was 332.7 MB in the beginning and 330.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-02 10:10:37,344 INFO L168 Benchmark]: RCFGBuilder took 196.71 ms. Allocated memory is still 385.4 MB. Free memory was 330.1 MB in the beginning and 308.6 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 5.3 GB. [2018-02-02 10:10:37,344 INFO L168 Benchmark]: TraceAbstraction took 972.74 ms. Allocated memory was 385.4 MB in the beginning and 578.3 MB in the end (delta: 192.9 MB). Free memory was 308.6 MB in the beginning and 466.1 MB in the end (delta: -157.5 MB). Peak memory consumption was 35.4 MB. Max. memory is 5.3 GB. [2018-02-02 10:10:37,345 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 385.4 MB. Free memory is still 346.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 148.66 ms. Allocated memory is still 385.4 MB. Free memory was 340.6 MB in the beginning and 332.7 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 21.67 ms. Allocated memory is still 385.4 MB. Free memory was 332.7 MB in the beginning and 330.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 196.71 ms. Allocated memory is still 385.4 MB. Free memory was 330.1 MB in the beginning and 308.6 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 5.3 GB. * TraceAbstraction took 972.74 ms. Allocated memory was 385.4 MB in the beginning and 578.3 MB in the end (delta: 192.9 MB). Free memory was 308.6 MB in the beginning and 466.1 MB in the end (delta: -157.5 MB). Peak memory consumption was 35.4 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 + 1) VAL [\old(n)=0, \old(size)=1, b={403:0}] [L21] FCALL int a[n], i; [L22] i = 0 VAL [\old(n)=0, \old(size)=1, a={404:0}, b={403:0}, b={403:0}, i=0, n=0, size=1] [L22] COND TRUE i < size VAL [\old(n)=0, \old(size)=1, a={404:0}, b={403:0}, b={403:0}, i=0, n=0, size=1] [L23] EXPR, FCALL b[i] VAL [\old(n)=0, \old(size)=1, a={404:0}, b={403:0}, b={403:0}, b[i]=402, i=0, n=0, size=1] [L23] FCALL a[i] = b[i] VAL [\old(n)=0, \old(size)=1, a={404:0}, b={403:0}, b={403:0}, b[i]=402, i=0, n=0, size=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 68 locations, 11 error locations. UNSAFE Result, 0.9s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 296 SDtfs, 157 SDslu, 310 SDs, 0 SdLazy, 191 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred in iteration=4, 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, 5 MinimizatonAttempts, 24 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 4050 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_10-10-37-350.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength2_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-02_10-10-37-350.csv Received shutdown request...