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_Camel.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength2_false-valid-deref-write.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c17473d-m [2018-02-04 13:33:04,505 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 13:33:04,507 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 13:33:04,521 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 13:33:04,521 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 13:33:04,522 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 13:33:04,523 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 13:33:04,525 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 13:33:04,527 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 13:33:04,527 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 13:33:04,528 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 13:33:04,528 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 13:33:04,529 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 13:33:04,531 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 13:33:04,531 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 13:33:04,535 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 13:33:04,536 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 13:33:04,538 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 13:33:04,539 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 13:33:04,540 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 13:33:04,542 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 13:33:04,542 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 13:33:04,542 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 13:33:04,543 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 13:33:04,544 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 13:33:04,545 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 13:33:04,545 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 13:33:04,546 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 13:33:04,546 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 13:33:04,546 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 13:33:04,547 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 13:33:04,547 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf [2018-02-04 13:33:04,558 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 13:33:04,559 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 13:33:04,560 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 13:33:04,560 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 13:33:04,560 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 13:33:04,560 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 13:33:04,561 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 13:33:04,561 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 13:33:04,561 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 13:33:04,561 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 13:33:04,561 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 13:33:04,561 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 13:33:04,562 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 13:33:04,562 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 13:33:04,562 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 13:33:04,562 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 13:33:04,562 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 13:33:04,562 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 13:33:04,563 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 13:33:04,563 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 13:33:04,563 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 13:33:04,563 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-04 13:33:04,563 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-04 13:33:04,563 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-02-04 13:33:04,595 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 13:33:04,606 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 13:33:04,609 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 13:33:04,610 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 13:33:04,611 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 13:33:04,611 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength2_false-valid-deref-write.c [2018-02-04 13:33:04,724 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 13:33:04,725 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 13:33:04,726 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 13:33:04,726 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 13:33:04,732 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 13:33:04,733 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 01:33:04" (1/1) ... [2018-02-04 13:33:04,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32a5da99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 01:33:04, skipping insertion in model container [2018-02-04 13:33:04,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 01:33:04" (1/1) ... [2018-02-04 13:33:04,752 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 13:33:04,767 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 13:33:04,853 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 13:33:04,865 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 13:33:04,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 01:33:04 WrapperNode [2018-02-04 13:33:04,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 13:33:04,870 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 13:33:04,870 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 13:33:04,870 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 13:33:04,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 01:33:04" (1/1) ... [2018-02-04 13:33:04,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 01:33:04" (1/1) ... [2018-02-04 13:33:04,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 01:33:04" (1/1) ... [2018-02-04 13:33:04,884 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 01:33:04" (1/1) ... [2018-02-04 13:33:04,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 01:33:04" (1/1) ... [2018-02-04 13:33:04,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 01:33:04" (1/1) ... [2018-02-04 13:33:04,890 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 01:33:04" (1/1) ... [2018-02-04 13:33:04,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 13:33:04,891 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 13:33:04,891 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 13:33:04,891 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 13:33:04,892 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 01:33:04" (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 13:33:04,930 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 13:33:04,930 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 13:33:04,930 INFO L136 BoogieDeclarations]: Found implementation of procedure bar [2018-02-04 13:33:04,930 INFO L136 BoogieDeclarations]: Found implementation of procedure foo [2018-02-04 13:33:04,930 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 13:33:04,930 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 13:33:04,930 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 13:33:04,930 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 13:33:04,931 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 13:33:04,931 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 13:33:04,931 INFO L128 BoogieDeclarations]: Found specification of procedure bar [2018-02-04 13:33:04,931 INFO L128 BoogieDeclarations]: Found specification of procedure foo [2018-02-04 13:33:04,931 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 13:33:04,931 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 13:33:04,931 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 13:33:05,099 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 13:33:05,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 01:33:05 BoogieIcfgContainer [2018-02-04 13:33:05,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 13:33:05,100 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 13:33:05,100 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 13:33:05,102 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 13:33:05,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 01:33:04" (1/3) ... [2018-02-04 13:33:05,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28dfede2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 01:33:05, skipping insertion in model container [2018-02-04 13:33:05,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 01:33:04" (2/3) ... [2018-02-04 13:33:05,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28dfede2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 01:33:05, skipping insertion in model container [2018-02-04 13:33:05,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 01:33:05" (3/3) ... [2018-02-04 13:33:05,105 INFO L107 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength2_false-valid-deref-write.c [2018-02-04 13:33:05,110 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-04 13:33:05,114 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-02-04 13:33:05,138 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 13:33:05,138 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 13:33:05,139 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-04 13:33:05,139 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-04 13:33:05,139 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 13:33:05,139 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 13:33:05,139 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 13:33:05,139 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 13:33:05,140 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 13:33:05,150 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2018-02-04 13:33:05,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-02-04 13:33:05,159 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 13:33:05,160 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 13:33:05,160 INFO L371 AbstractCegarLoop]: === Iteration 1 === [barErr1RequiresViolation, barErr0RequiresViolation, fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-04 13:33:05,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1613294992, now seen corresponding path program 1 times [2018-02-04 13:33:05,165 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 13:33:05,166 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 13:33:05,196 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:33:05,196 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 13:33:05,196 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:33:05,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 13:33:05,231 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 13:33:05,255 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 13:33:05,257 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 13:33:05,257 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-04 13:33:05,258 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-02-04 13:33:05,266 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-02-04 13:33:05,266 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-02-04 13:33:05,268 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 2 states. [2018-02-04 13:33:05,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 13:33:05,282 INFO L93 Difference]: Finished difference Result 68 states and 73 transitions. [2018-02-04 13:33:05,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-02-04 13:33:05,283 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-02-04 13:33:05,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 13:33:05,290 INFO L225 Difference]: With dead ends: 68 [2018-02-04 13:33:05,290 INFO L226 Difference]: Without dead ends: 65 [2018-02-04 13:33:05,291 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 [2018-02-04 13:33:05,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-02-04 13:33:05,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-02-04 13:33:05,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-02-04 13:33:05,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 70 transitions. [2018-02-04 13:33:05,316 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 70 transitions. Word has length 13 [2018-02-04 13:33:05,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 13:33:05,317 INFO L432 AbstractCegarLoop]: Abstraction has 65 states and 70 transitions. [2018-02-04 13:33:05,317 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-02-04 13:33:05,317 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 70 transitions. [2018-02-04 13:33:05,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-04 13:33:05,318 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 13:33:05,318 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 13:33:05,318 INFO L371 AbstractCegarLoop]: === Iteration 2 === [barErr1RequiresViolation, barErr0RequiresViolation, fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-04 13:33:05,318 INFO L82 PathProgramCache]: Analyzing trace with hash -1969953325, now seen corresponding path program 1 times [2018-02-04 13:33:05,318 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 13:33:05,318 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 13:33:05,319 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:33:05,319 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 13:33:05,320 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:33:05,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 13:33:05,394 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 13:33:05,424 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 13:33:05,424 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 13:33:05,424 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 13:33:05,425 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 13:33:05,425 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 13:33:05,425 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 13:33:05,426 INFO L87 Difference]: Start difference. First operand 65 states and 70 transitions. Second operand 3 states. [2018-02-04 13:33:05,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 13:33:05,471 INFO L93 Difference]: Finished difference Result 71 states and 76 transitions. [2018-02-04 13:33:05,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 13:33:05,471 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-02-04 13:33:05,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 13:33:05,474 INFO L225 Difference]: With dead ends: 71 [2018-02-04 13:33:05,474 INFO L226 Difference]: Without dead ends: 71 [2018-02-04 13:33:05,475 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 [2018-02-04 13:33:05,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-02-04 13:33:05,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 64. [2018-02-04 13:33:05,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-02-04 13:33:05,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2018-02-04 13:33:05,484 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 14 [2018-02-04 13:33:05,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 13:33:05,485 INFO L432 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2018-02-04 13:33:05,485 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 13:33:05,485 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2018-02-04 13:33:05,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-02-04 13:33:05,485 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 13:33:05,485 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 13:33:05,486 INFO L371 AbstractCegarLoop]: === Iteration 3 === [barErr1RequiresViolation, barErr0RequiresViolation, fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-04 13:33:05,486 INFO L82 PathProgramCache]: Analyzing trace with hash -1297061679, now seen corresponding path program 1 times [2018-02-04 13:33:05,486 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 13:33:05,486 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 13:33:05,487 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:33:05,487 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 13:33:05,487 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:33:05,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 13:33:05,508 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 13:33:05,580 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 13:33:05,580 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 13:33:05,581 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 13:33:05,581 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 13:33:05,581 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 13:33:05,581 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 13:33:05,582 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand 5 states. [2018-02-04 13:33:05,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 13:33:05,653 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2018-02-04 13:33:05,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 13:33:05,654 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-02-04 13:33:05,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 13:33:05,654 INFO L225 Difference]: With dead ends: 62 [2018-02-04 13:33:05,655 INFO L226 Difference]: Without dead ends: 62 [2018-02-04 13:33:05,655 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 [2018-02-04 13:33:05,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-02-04 13:33:05,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2018-02-04 13:33:05,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-02-04 13:33:05,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions. [2018-02-04 13:33:05,659 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 17 [2018-02-04 13:33:05,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 13:33:05,660 INFO L432 AbstractCegarLoop]: Abstraction has 62 states and 66 transitions. [2018-02-04 13:33:05,660 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 13:33:05,660 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions. [2018-02-04 13:33:05,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-02-04 13:33:05,660 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 13:33:05,660 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 13:33:05,661 INFO L371 AbstractCegarLoop]: === Iteration 4 === [barErr1RequiresViolation, barErr0RequiresViolation, fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-04 13:33:05,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1297061678, now seen corresponding path program 1 times [2018-02-04 13:33:05,661 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 13:33:05,661 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 13:33:05,662 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:33:05,662 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 13:33:05,662 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:33:05,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 13:33:05,674 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 13:33:05,751 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 13:33:05,751 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 13:33:05,751 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-04 13:33:05,751 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-04 13:33:05,751 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-04 13:33:05,752 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-02-04 13:33:05,752 INFO L87 Difference]: Start difference. First operand 62 states and 66 transitions. Second operand 7 states. [2018-02-04 13:33:05,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 13:33:05,866 INFO L93 Difference]: Finished difference Result 101 states and 111 transitions. [2018-02-04 13:33:05,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-04 13:33:05,866 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2018-02-04 13:33:05,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 13:33:05,868 INFO L225 Difference]: With dead ends: 101 [2018-02-04 13:33:05,868 INFO L226 Difference]: Without dead ends: 101 [2018-02-04 13:33:05,868 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 [2018-02-04 13:33:05,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2018-02-04 13:33:05,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 84. [2018-02-04 13:33:05,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-02-04 13:33:05,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 95 transitions. [2018-02-04 13:33:05,873 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 95 transitions. Word has length 17 [2018-02-04 13:33:05,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 13:33:05,873 INFO L432 AbstractCegarLoop]: Abstraction has 84 states and 95 transitions. [2018-02-04 13:33:05,873 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-04 13:33:05,873 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 95 transitions. [2018-02-04 13:33:05,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-02-04 13:33:05,874 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 13:33:05,874 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 13:33:05,874 INFO L371 AbstractCegarLoop]: === Iteration 5 === [barErr1RequiresViolation, barErr0RequiresViolation, fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-04 13:33:05,874 INFO L82 PathProgramCache]: Analyzing trace with hash -1554206377, now seen corresponding path program 1 times [2018-02-04 13:33:05,874 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 13:33:05,874 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 13:33:05,875 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:33:05,875 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 13:33:05,875 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:33:05,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 13:33:05,883 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 13:33:05,908 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 13:33:05,909 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 13:33:05,909 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-04 13:33:05,909 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 13:33:05,909 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 13:33:05,909 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 13:33:05,909 INFO L87 Difference]: Start difference. First operand 84 states and 95 transitions. Second operand 3 states. [2018-02-04 13:33:05,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 13:33:05,938 INFO L93 Difference]: Finished difference Result 83 states and 93 transitions. [2018-02-04 13:33:05,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 13:33:05,939 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-02-04 13:33:05,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 13:33:05,940 INFO L225 Difference]: With dead ends: 83 [2018-02-04 13:33:05,940 INFO L226 Difference]: Without dead ends: 83 [2018-02-04 13:33:05,940 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 [2018-02-04 13:33:05,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-02-04 13:33:05,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2018-02-04 13:33:05,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-02-04 13:33:05,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 93 transitions. [2018-02-04 13:33:05,946 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 93 transitions. Word has length 18 [2018-02-04 13:33:05,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 13:33:05,946 INFO L432 AbstractCegarLoop]: Abstraction has 83 states and 93 transitions. [2018-02-04 13:33:05,946 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 13:33:05,946 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 93 transitions. [2018-02-04 13:33:05,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-02-04 13:33:05,947 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 13:33:05,947 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 13:33:05,947 INFO L371 AbstractCegarLoop]: === Iteration 6 === [barErr1RequiresViolation, barErr0RequiresViolation, fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-04 13:33:05,947 INFO L82 PathProgramCache]: Analyzing trace with hash -1554206376, now seen corresponding path program 1 times [2018-02-04 13:33:05,947 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 13:33:05,947 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 13:33:05,948 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:33:05,948 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 13:33:05,948 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:33:05,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-04 13:33:05,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-04 13:33:05,991 INFO L410 BasicCegarLoop]: Counterexample might be feasible [2018-02-04 13:33:06,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.02 01:33:06 BoogieIcfgContainer [2018-02-04 13:33:06,009 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-04 13:33:06,010 INFO L168 Benchmark]: Toolchain (without parser) took 1285.65 ms. Allocated memory was 405.8 MB in the beginning and 610.8 MB in the end (delta: 205.0 MB). Free memory was 362.7 MB in the beginning and 496.9 MB in the end (delta: -134.2 MB). Peak memory consumption was 70.8 MB. Max. memory is 5.3 GB. [2018-02-04 13:33:06,011 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 405.8 MB. Free memory is still 368.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 13:33:06,011 INFO L168 Benchmark]: CACSL2BoogieTranslator took 143.51 ms. Allocated memory is still 405.8 MB. Free memory was 362.7 MB in the beginning and 354.7 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 5.3 GB. [2018-02-04 13:33:06,012 INFO L168 Benchmark]: Boogie Preprocessor took 21.17 ms. Allocated memory is still 405.8 MB. Free memory was 354.7 MB in the beginning and 352.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-04 13:33:06,012 INFO L168 Benchmark]: RCFGBuilder took 208.35 ms. Allocated memory is still 405.8 MB. Free memory was 352.1 MB in the beginning and 332.8 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 5.3 GB. [2018-02-04 13:33:06,012 INFO L168 Benchmark]: TraceAbstraction took 909.68 ms. Allocated memory was 405.8 MB in the beginning and 610.8 MB in the end (delta: 205.0 MB). Free memory was 332.8 MB in the beginning and 496.9 MB in the end (delta: -164.1 MB). Peak memory consumption was 40.9 MB. Max. memory is 5.3 GB. [2018-02-04 13:33:06,013 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 405.8 MB. Free memory is still 368.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 143.51 ms. Allocated memory is still 405.8 MB. Free memory was 362.7 MB in the beginning and 354.7 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 21.17 ms. Allocated memory is still 405.8 MB. Free memory was 354.7 MB in the beginning and 352.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 208.35 ms. Allocated memory is still 405.8 MB. Free memory was 352.1 MB in the beginning and 332.8 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 5.3 GB. * TraceAbstraction took 909.68 ms. Allocated memory was 405.8 MB in the beginning and 610.8 MB in the end (delta: 205.0 MB). Free memory was 332.8 MB in the beginning and 496.9 MB in the end (delta: -164.1 MB). Peak memory consumption was 40.9 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, 0.8s 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, 0.1s SatisfiabilityAnalysisTime, 0.2s 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_Camel.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_13-33-06-019.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_Camel.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-04_13-33-06-019.csv Received shutdown request...