java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength_false-valid-deref-read.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-5f7ec6e [2018-01-31 08:38:52,546 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-31 08:38:52,548 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-31 08:38:52,573 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-31 08:38:52,573 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-31 08:38:52,574 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-31 08:38:52,575 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-31 08:38:52,579 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-31 08:38:52,581 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-31 08:38:52,582 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-31 08:38:52,584 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-31 08:38:52,584 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-31 08:38:52,585 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-31 08:38:52,586 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-31 08:38:52,599 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-31 08:38:52,601 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-31 08:38:52,603 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-31 08:38:52,605 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-31 08:38:52,606 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-31 08:38:52,607 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-31 08:38:52,609 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-31 08:38:52,610 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-31 08:38:52,610 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-31 08:38:52,611 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-31 08:38:52,611 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-31 08:38:52,613 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-31 08:38:52,613 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-31 08:38:52,614 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-31 08:38:52,614 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-31 08:38:52,614 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-31 08:38:52,615 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-31 08:38:52,615 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf [2018-01-31 08:38:52,633 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-31 08:38:52,633 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-31 08:38:52,634 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-31 08:38:52,634 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-31 08:38:52,634 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-31 08:38:52,634 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-31 08:38:52,635 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-31 08:38:52,635 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-31 08:38:52,635 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-31 08:38:52,635 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-31 08:38:52,636 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-31 08:38:52,636 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-31 08:38:52,636 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-31 08:38:52,636 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-31 08:38:52,636 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-31 08:38:52,636 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-31 08:38:52,637 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-31 08:38:52,637 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-31 08:38:52,637 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-31 08:38:52,637 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-01-31 08:38:52,637 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-31 08:38:52,637 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-31 08:38:52,638 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-31 08:38:52,638 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-31 08:38:52,639 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-31 08:38:52,639 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-31 08:38:52,639 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-31 08:38:52,640 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-31 08:38:52,640 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-31 08:38:52,640 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-31 08:38:52,640 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-31 08:38:52,640 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-31 08:38:52,641 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-31 08:38:52,641 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-31 08:38:52,689 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-31 08:38:52,704 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-31 08:38:52,708 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-31 08:38:52,709 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-31 08:38:52,709 INFO L276 PluginConnector]: CDTParser initialized [2018-01-31 08:38:52,710 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength_false-valid-deref-read.c [2018-01-31 08:38:52,820 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-31 08:38:52,830 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-31 08:38:52,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-31 08:38:52,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-31 08:38:52,838 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-31 08:38:52,840 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 08:38:52" (1/1) ... [2018-01-31 08:38:52,843 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77e1eab2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:38:52, skipping insertion in model container [2018-01-31 08:38:52,843 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 08:38:52" (1/1) ... [2018-01-31 08:38:52,861 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-31 08:38:52,882 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-31 08:38:53,050 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-31 08:38:53,073 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-31 08:38:53,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:38:53 WrapperNode [2018-01-31 08:38:53,082 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-31 08:38:53,083 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-31 08:38:53,083 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-31 08:38:53,084 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-31 08:38:53,099 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:38:53" (1/1) ... [2018-01-31 08:38:53,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:38:53" (1/1) ... [2018-01-31 08:38:53,110 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:38:53" (1/1) ... [2018-01-31 08:38:53,110 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:38:53" (1/1) ... [2018-01-31 08:38:53,114 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:38:53" (1/1) ... [2018-01-31 08:38:53,117 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:38:53" (1/1) ... [2018-01-31 08:38:53,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:38:53" (1/1) ... [2018-01-31 08:38:53,120 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-31 08:38:53,121 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-31 08:38:53,121 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-31 08:38:53,121 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-31 08:38:53,122 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:38:53" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-31 08:38:53,202 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-31 08:38:53,202 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-31 08:38:53,203 INFO L136 BoogieDeclarations]: Found implementation of procedure foo [2018-01-31 08:38:53,203 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-31 08:38:53,203 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-31 08:38:53,203 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-31 08:38:53,203 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-31 08:38:53,203 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-31 08:38:53,204 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-31 08:38:53,204 INFO L128 BoogieDeclarations]: Found specification of procedure foo [2018-01-31 08:38:53,204 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-31 08:38:53,204 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-31 08:38:53,204 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-31 08:38:53,734 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-31 08:38:53,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 08:38:53 BoogieIcfgContainer [2018-01-31 08:38:53,735 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-31 08:38:53,736 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-31 08:38:53,736 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-31 08:38:53,741 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-31 08:38:53,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 08:38:52" (1/3) ... [2018-01-31 08:38:53,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d2d1f14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 08:38:53, skipping insertion in model container [2018-01-31 08:38:53,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:38:53" (2/3) ... [2018-01-31 08:38:53,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d2d1f14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 08:38:53, skipping insertion in model container [2018-01-31 08:38:53,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 08:38:53" (3/3) ... [2018-01-31 08:38:53,744 INFO L107 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength_false-valid-deref-read.c [2018-01-31 08:38:53,754 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-31 08:38:53,764 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-01-31 08:38:53,811 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-31 08:38:53,811 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-31 08:38:53,812 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-31 08:38:53,812 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-31 08:38:53,812 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-31 08:38:53,812 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-31 08:38:53,813 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-31 08:38:53,813 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-31 08:38:53,814 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-31 08:38:53,837 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2018-01-31 08:38:53,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-01-31 08:38:53,846 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 08:38:53,847 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 08:38:53,849 INFO L371 AbstractCegarLoop]: === Iteration 1 === [fooErr1RequiresViolation, fooErr0AssertViolation, fooErr2RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-01-31 08:38:53,855 INFO L82 PathProgramCache]: Analyzing trace with hash -547286431, now seen corresponding path program 1 times [2018-01-31 08:38:53,857 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 08:38:53,857 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 08:38:53,914 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:38:53,914 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 08:38:53,914 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:38:53,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 08:38:53,979 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 08:38:54,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-31 08:38:54,026 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 08:38:54,027 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-31 08:38:54,029 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-31 08:38:54,043 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-31 08:38:54,044 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-31 08:38:54,047 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 2 states. [2018-01-31 08:38:54,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 08:38:54,080 INFO L93 Difference]: Finished difference Result 113 states and 126 transitions. [2018-01-31 08:38:54,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-31 08:38:54,082 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-01-31 08:38:54,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 08:38:54,093 INFO L225 Difference]: With dead ends: 113 [2018-01-31 08:38:54,093 INFO L226 Difference]: Without dead ends: 58 [2018-01-31 08:38:54,102 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 [2018-01-31 08:38:54,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-01-31 08:38:54,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-01-31 08:38:54,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-01-31 08:38:54,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 61 transitions. [2018-01-31 08:38:54,152 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 61 transitions. Word has length 14 [2018-01-31 08:38:54,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 08:38:54,153 INFO L432 AbstractCegarLoop]: Abstraction has 58 states and 61 transitions. [2018-01-31 08:38:54,153 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-31 08:38:54,153 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 61 transitions. [2018-01-31 08:38:54,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-31 08:38:54,154 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 08:38:54,154 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 08:38:54,154 INFO L371 AbstractCegarLoop]: === Iteration 2 === [fooErr1RequiresViolation, fooErr0AssertViolation, fooErr2RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-01-31 08:38:54,154 INFO L82 PathProgramCache]: Analyzing trace with hash -287606038, now seen corresponding path program 1 times [2018-01-31 08:38:54,154 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 08:38:54,155 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 08:38:54,158 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:38:54,158 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 08:38:54,158 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:38:54,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 08:38:54,181 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 08:38:54,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-31 08:38:54,287 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 08:38:54,287 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-31 08:38:54,290 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-31 08:38:54,291 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-31 08:38:54,291 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-31 08:38:54,291 INFO L87 Difference]: Start difference. First operand 58 states and 61 transitions. Second operand 3 states. [2018-01-31 08:38:54,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 08:38:54,521 INFO L93 Difference]: Finished difference Result 82 states and 88 transitions. [2018-01-31 08:38:54,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-31 08:38:54,522 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-01-31 08:38:54,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 08:38:54,525 INFO L225 Difference]: With dead ends: 82 [2018-01-31 08:38:54,525 INFO L226 Difference]: Without dead ends: 65 [2018-01-31 08:38:54,526 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 [2018-01-31 08:38:54,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-01-31 08:38:54,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 57. [2018-01-31 08:38:54,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-01-31 08:38:54,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 59 transitions. [2018-01-31 08:38:54,543 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 59 transitions. Word has length 15 [2018-01-31 08:38:54,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 08:38:54,543 INFO L432 AbstractCegarLoop]: Abstraction has 57 states and 59 transitions. [2018-01-31 08:38:54,544 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-31 08:38:54,544 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2018-01-31 08:38:54,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-01-31 08:38:54,544 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 08:38:54,544 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] [2018-01-31 08:38:54,545 INFO L371 AbstractCegarLoop]: === Iteration 3 === [fooErr1RequiresViolation, fooErr0AssertViolation, fooErr2RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-01-31 08:38:54,545 INFO L82 PathProgramCache]: Analyzing trace with hash 102575822, now seen corresponding path program 1 times [2018-01-31 08:38:54,545 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 08:38:54,545 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 08:38:54,546 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:38:54,547 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 08:38:54,547 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:38:54,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-31 08:38:54,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-31 08:38:54,609 INFO L410 BasicCegarLoop]: Counterexample might be feasible [2018-01-31 08:38:54,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 08:38:54 BoogieIcfgContainer [2018-01-31 08:38:54,633 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-31 08:38:54,633 INFO L168 Benchmark]: Toolchain (without parser) took 1812.71 ms. Allocated memory was 308.3 MB in the beginning and 467.7 MB in the end (delta: 159.4 MB). Free memory was 269.2 MB in the beginning and 432.0 MB in the end (delta: -162.8 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-31 08:38:54,635 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 308.3 MB. Free memory is still 273.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-31 08:38:54,636 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.02 ms. Allocated memory is still 308.3 MB. Free memory was 267.2 MB in the beginning and 259.2 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 5.3 GB. [2018-01-31 08:38:54,637 INFO L168 Benchmark]: Boogie Preprocessor took 36.95 ms. Allocated memory is still 308.3 MB. Free memory is still 259.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-31 08:38:54,637 INFO L168 Benchmark]: RCFGBuilder took 614.24 ms. Allocated memory is still 308.3 MB. Free memory was 257.2 MB in the beginning and 240.3 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 5.3 GB. [2018-01-31 08:38:54,638 INFO L168 Benchmark]: TraceAbstraction took 896.95 ms. Allocated memory was 308.3 MB in the beginning and 467.7 MB in the end (delta: 159.4 MB). Free memory was 240.3 MB in the beginning and 432.0 MB in the end (delta: -191.7 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-31 08:38:54,640 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 308.3 MB. Free memory is still 273.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 252.02 ms. Allocated memory is still 308.3 MB. Free memory was 267.2 MB in the beginning and 259.2 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 36.95 ms. Allocated memory is still 308.3 MB. Free memory is still 259.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * RCFGBuilder took 614.24 ms. Allocated memory is still 308.3 MB. Free memory was 257.2 MB in the beginning and 240.3 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 896.95 ms. Allocated memory was 308.3 MB in the beginning and 467.7 MB in the end (delta: 159.4 MB). Free memory was 240.3 MB in the beginning and 432.0 MB in the end (delta: -191.7 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 15]: array index can be out of bounds array index can be out of bounds We found a FailurePath: [L21] int i, b[100]; VAL [b={402:0}] [L22] i = 0 VAL [b={402:0}, i=0] [L22] COND TRUE i < 100 VAL [b={402:0}, i=0] [L23] CALL foo(i, b, i) VAL [\old(n)=0, \old(size)=0, b={402:0}] [L13] int a[n], i; VAL [\old(n)=0, \old(size)=0, b={402:0}, b={402:0}, n=0, size=0] [L14] i = 0 VAL [\old(n)=0, \old(size)=0, b={402:0}, b={402:0}, i=0, n=0, size=0] [L14] COND TRUE i < size + 1 VAL [\old(n)=0, \old(size)=0, b={402:0}, b={402:0}, i=0, n=0, size=0] [L15] a[i] VAL [\old(n)=0, \old(size)=0, b={402:0}, b={402:0}, i=0, n=0, size=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 61 locations, 8 error locations. UNSAFE Result, 0.8s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 113 SDtfs, 20 SDslu, 35 SDs, 0 SdLazy, 16 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred in iteration=0, 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, 2 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 421 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength_false-valid-deref-read.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-31_08-38-54-649.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength_false-valid-deref-read.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-31_08-38-54-649.csv Received shutdown request...