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/array-memsafety/openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c17473d-m [2018-02-04 12:05:50,883 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 12:05:50,884 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 12:05:50,896 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 12:05:50,896 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 12:05:50,897 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 12:05:50,897 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 12:05:50,899 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 12:05:50,900 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 12:05:50,901 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 12:05:50,902 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 12:05:50,902 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 12:05:50,903 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 12:05:50,904 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 12:05:50,904 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 12:05:50,906 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 12:05:50,908 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 12:05:50,909 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 12:05:50,910 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 12:05:50,911 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 12:05:50,913 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-04 12:05:50,916 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 12:05:50,917 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 12:05:50,917 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 12:05:50,926 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 12:05:50,926 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 12:05:50,927 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 12:05:50,927 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 12:05:50,927 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 12:05:50,927 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 12:05:50,927 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 12:05:50,927 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 12:05:50,928 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 12:05:50,928 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 12:05:50,928 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 12:05:50,928 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 12:05:50,928 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 12:05:50,928 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 12:05:50,928 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 12:05:50,928 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 12:05:50,928 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 12:05:50,928 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 12:05:50,928 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 12:05:50,929 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 12:05:50,929 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 12:05:50,929 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-04 12:05:50,929 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-04 12:05:50,929 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-02-04 12:05:50,958 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 12:05:50,967 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 12:05:50,970 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 12:05:50,972 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 12:05:50,972 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 12:05:50,972 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i [2018-02-04 12:05:51,115 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 12:05:51,116 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 12:05:51,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 12:05:51,116 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 12:05:51,121 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 12:05:51,122 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 12:05:51" (1/1) ... [2018-02-04 12:05:51,124 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3af567ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 12:05:51, skipping insertion in model container [2018-02-04 12:05:51,124 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 12:05:51" (1/1) ... [2018-02-04 12:05:51,133 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 12:05:51,159 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 12:05:51,240 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 12:05:51,251 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 12:05:51,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 12:05:51 WrapperNode [2018-02-04 12:05:51,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 12:05:51,256 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 12:05:51,256 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 12:05:51,256 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 12:05:51,269 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 12:05:51" (1/1) ... [2018-02-04 12:05:51,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 12:05:51" (1/1) ... [2018-02-04 12:05:51,277 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 12:05:51" (1/1) ... [2018-02-04 12:05:51,278 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 12:05:51" (1/1) ... [2018-02-04 12:05:51,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 12:05:51" (1/1) ... [2018-02-04 12:05:51,281 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 12:05:51" (1/1) ... [2018-02-04 12:05:51,282 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 12:05:51" (1/1) ... [2018-02-04 12:05:51,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 12:05:51,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 12:05:51,283 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 12:05:51,283 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 12:05:51,284 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 12:05:51" (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 12:05:51,317 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 12:05:51,317 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 12:05:51,317 INFO L136 BoogieDeclarations]: Found implementation of procedure cmemset [2018-02-04 12:05:51,317 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 12:05:51,317 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 12:05:51,317 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 12:05:51,317 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 12:05:51,318 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 12:05:51,318 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 12:05:51,318 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 12:05:51,318 INFO L128 BoogieDeclarations]: Found specification of procedure cmemset [2018-02-04 12:05:51,318 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 12:05:51,318 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 12:05:51,318 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 12:05:51,430 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 12:05:51,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 12:05:51 BoogieIcfgContainer [2018-02-04 12:05:51,431 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 12:05:51,431 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 12:05:51,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 12:05:51,433 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 12:05:51,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 12:05:51" (1/3) ... [2018-02-04 12:05:51,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e6c4c6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 12:05:51, skipping insertion in model container [2018-02-04 12:05:51,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 12:05:51" (2/3) ... [2018-02-04 12:05:51,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e6c4c6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 12:05:51, skipping insertion in model container [2018-02-04 12:05:51,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 12:05:51" (3/3) ... [2018-02-04 12:05:51,435 INFO L107 eAbstractionObserver]: Analyzing ICFG openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i [2018-02-04 12:05:51,441 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-04 12:05:51,444 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-02-04 12:05:51,478 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 12:05:51,478 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 12:05:51,478 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-04 12:05:51,478 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-04 12:05:51,478 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 12:05:51,479 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 12:05:51,479 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 12:05:51,479 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 12:05:51,479 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 12:05:51,487 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-02-04 12:05:51,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-04 12:05:51,493 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 12:05:51,494 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 12:05:51,494 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation, cmemsetErr0RequiresViolation, cmemsetErr1RequiresViolation]=== [2018-02-04 12:05:51,498 INFO L82 PathProgramCache]: Analyzing trace with hash -930191962, now seen corresponding path program 1 times [2018-02-04 12:05:51,500 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 12:05:51,500 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 12:05:51,530 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:05:51,530 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 12:05:51,530 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:05:51,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 12:05:51,576 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 12:05:51,685 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 12:05:51,687 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 12:05:51,687 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-04 12:05:51,688 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-04 12:05:51,696 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-04 12:05:51,697 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-02-04 12:05:51,699 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 8 states. [2018-02-04 12:05:51,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 12:05:51,855 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2018-02-04 12:05:51,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-04 12:05:51,856 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2018-02-04 12:05:51,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 12:05:51,912 INFO L225 Difference]: With dead ends: 33 [2018-02-04 12:05:51,912 INFO L226 Difference]: Without dead ends: 30 [2018-02-04 12:05:51,914 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2018-02-04 12:05:51,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-02-04 12:05:51,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2018-02-04 12:05:51,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-02-04 12:05:51,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2018-02-04 12:05:51,937 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 15 [2018-02-04 12:05:51,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 12:05:51,938 INFO L432 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2018-02-04 12:05:51,938 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-04 12:05:51,938 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2018-02-04 12:05:51,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-04 12:05:51,938 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 12:05:51,938 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 12:05:51,939 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation, cmemsetErr0RequiresViolation, cmemsetErr1RequiresViolation]=== [2018-02-04 12:05:51,939 INFO L82 PathProgramCache]: Analyzing trace with hash -930191961, now seen corresponding path program 1 times [2018-02-04 12:05:51,939 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 12:05:51,939 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 12:05:51,940 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:05:51,940 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 12:05:51,940 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:05:51,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 12:05:51,957 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 12:05:52,053 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 12:05:52,053 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 12:05:52,053 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-02-04 12:05:52,054 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-02-04 12:05:52,054 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-02-04 12:05:52,054 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-02-04 12:05:52,055 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand 9 states. [2018-02-04 12:05:52,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 12:05:52,135 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2018-02-04 12:05:52,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-02-04 12:05:52,136 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2018-02-04 12:05:52,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 12:05:52,136 INFO L225 Difference]: With dead ends: 30 [2018-02-04 12:05:52,136 INFO L226 Difference]: Without dead ends: 30 [2018-02-04 12:05:52,137 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2018-02-04 12:05:52,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-02-04 12:05:52,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2018-02-04 12:05:52,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-02-04 12:05:52,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2018-02-04 12:05:52,140 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 15 [2018-02-04 12:05:52,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 12:05:52,140 INFO L432 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2018-02-04 12:05:52,140 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-02-04 12:05:52,140 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2018-02-04 12:05:52,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-04 12:05:52,141 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 12:05:52,141 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] [2018-02-04 12:05:52,141 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr0EnsuresViolation, cmemsetErr0RequiresViolation, cmemsetErr1RequiresViolation]=== [2018-02-04 12:05:52,141 INFO L82 PathProgramCache]: Analyzing trace with hash -890079964, now seen corresponding path program 1 times [2018-02-04 12:05:52,141 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 12:05:52,142 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 12:05:52,142 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:05:52,143 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 12:05:52,143 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:05:52,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 12:05:52,159 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 12:05:52,222 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 12:05:52,222 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 12:05:52,222 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 12:05:52,222 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 12:05:52,223 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 12:05:52,223 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 12:05:52,223 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand 4 states. [2018-02-04 12:05:52,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 12:05:52,262 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2018-02-04 12:05:52,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 12:05:52,263 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-02-04 12:05:52,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 12:05:52,263 INFO L225 Difference]: With dead ends: 28 [2018-02-04 12:05:52,264 INFO L226 Difference]: Without dead ends: 21 [2018-02-04 12:05:52,264 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 12:05:52,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-02-04 12:05:52,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-02-04 12:05:52,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-02-04 12:05:52,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2018-02-04 12:05:52,266 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 20 [2018-02-04 12:05:52,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 12:05:52,267 INFO L432 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2018-02-04 12:05:52,267 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 12:05:52,267 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-02-04 12:05:52,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-04 12:05:52,268 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 12:05:52,268 INFO L351 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 12:05:52,268 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr0EnsuresViolation, cmemsetErr0RequiresViolation, cmemsetErr1RequiresViolation]=== [2018-02-04 12:05:52,268 INFO L82 PathProgramCache]: Analyzing trace with hash -715906328, now seen corresponding path program 1 times [2018-02-04 12:05:52,268 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 12:05:52,268 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 12:05:52,269 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:05:52,269 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 12:05:52,269 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:05:52,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 12:05:52,285 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 12:05:52,446 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 12:05:52,446 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 12:05:52,447 INFO L213 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-02-04 12:05:52,452 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 12:05:52,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 12:05:52,477 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 12:05:52,502 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 12:05:52,503 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 12:05:52,505 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 12:05:52,506 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-02-04 12:05:52,692 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 12:05:52,712 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-02-04 12:05:52,712 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 22 [2018-02-04 12:05:52,712 INFO L409 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-02-04 12:05:52,712 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-02-04 12:05:52,713 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=454, Unknown=0, NotChecked=0, Total=506 [2018-02-04 12:05:52,713 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 23 states. [2018-02-04 12:05:53,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 12:05:53,085 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2018-02-04 12:05:53,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-02-04 12:05:53,085 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 20 [2018-02-04 12:05:53,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 12:05:53,085 INFO L225 Difference]: With dead ends: 27 [2018-02-04 12:05:53,086 INFO L226 Difference]: Without dead ends: 27 [2018-02-04 12:05:53,086 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=124, Invalid=868, Unknown=0, NotChecked=0, Total=992 [2018-02-04 12:05:53,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-02-04 12:05:53,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2018-02-04 12:05:53,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-02-04 12:05:53,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2018-02-04 12:05:53,088 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 20 [2018-02-04 12:05:53,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 12:05:53,088 INFO L432 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2018-02-04 12:05:53,088 INFO L433 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-02-04 12:05:53,088 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2018-02-04 12:05:53,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-02-04 12:05:53,088 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 12:05:53,088 INFO L351 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 12:05:53,089 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr0EnsuresViolation, cmemsetErr0RequiresViolation, cmemsetErr1RequiresViolation]=== [2018-02-04 12:05:53,089 INFO L82 PathProgramCache]: Analyzing trace with hash -293108153, now seen corresponding path program 2 times [2018-02-04 12:05:53,089 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 12:05:53,089 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 12:05:53,089 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:05:53,090 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 12:05:53,090 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 12:05:53,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 12:05:53,108 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 12:05:53,302 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 12:05:53,302 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 12:05:53,302 INFO L213 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-02-04 12:05:53,307 INFO L109 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-02-04 12:05:53,359 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-02-04 12:05:53,359 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-02-04 12:05:53,361 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 12:05:53,373 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 12:05:53,374 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 12:05:53,376 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 12:05:53,376 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-02-04 12:05:53,536 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 12:05:53,555 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-02-04 12:05:53,556 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 22 [2018-02-04 12:05:53,556 INFO L409 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-02-04 12:05:53,556 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-02-04 12:05:53,556 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2018-02-04 12:05:53,556 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand 23 states. [2018-02-04 12:05:54,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 12:05:54,091 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2018-02-04 12:05:54,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-02-04 12:05:54,091 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 25 [2018-02-04 12:05:54,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 12:05:54,092 INFO L225 Difference]: With dead ends: 31 [2018-02-04 12:05:54,092 INFO L226 Difference]: Without dead ends: 0 [2018-02-04 12:05:54,092 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 13 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=165, Invalid=1317, Unknown=0, NotChecked=0, Total=1482 [2018-02-04 12:05:54,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-02-04 12:05:54,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-02-04 12:05:54,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-02-04 12:05:54,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-02-04 12:05:54,093 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-02-04 12:05:54,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 12:05:54,093 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-02-04 12:05:54,093 INFO L433 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-02-04 12:05:54,093 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-02-04 12:05:54,093 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-02-04 12:05:54,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.02 12:05:54 BoogieIcfgContainer [2018-02-04 12:05:54,096 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-04 12:05:54,099 INFO L168 Benchmark]: Toolchain (without parser) took 2984.30 ms. Allocated memory was 405.8 MB in the beginning and 674.8 MB in the end (delta: 269.0 MB). Free memory was 362.3 MB in the beginning and 554.6 MB in the end (delta: -192.3 MB). Peak memory consumption was 76.6 MB. Max. memory is 5.3 GB. [2018-02-04 12:05:54,100 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 405.8 MB. Free memory is still 367.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 12:05:54,100 INFO L168 Benchmark]: CACSL2BoogieTranslator took 139.66 ms. Allocated memory is still 405.8 MB. Free memory was 362.3 MB in the beginning and 351.7 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-02-04 12:05:54,100 INFO L168 Benchmark]: Boogie Preprocessor took 26.72 ms. Allocated memory is still 405.8 MB. Free memory was 351.7 MB in the beginning and 349.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-04 12:05:54,101 INFO L168 Benchmark]: RCFGBuilder took 147.91 ms. Allocated memory is still 405.8 MB. Free memory was 349.1 MB in the beginning and 334.5 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 5.3 GB. [2018-02-04 12:05:54,101 INFO L168 Benchmark]: TraceAbstraction took 2667.49 ms. Allocated memory was 405.8 MB in the beginning and 674.8 MB in the end (delta: 269.0 MB). Free memory was 334.5 MB in the beginning and 554.6 MB in the end (delta: -220.1 MB). Peak memory consumption was 48.8 MB. Max. memory is 5.3 GB. [2018-02-04 12:05:54,102 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 405.8 MB. Free memory is still 367.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 139.66 ms. Allocated memory is still 405.8 MB. Free memory was 362.3 MB in the beginning and 351.7 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 26.72 ms. Allocated memory is still 405.8 MB. Free memory was 351.7 MB in the beginning and 349.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 147.91 ms. Allocated memory is still 405.8 MB. Free memory was 349.1 MB in the beginning and 334.5 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 2667.49 ms. Allocated memory was 405.8 MB in the beginning and 674.8 MB in the end (delta: 269.0 MB). Free memory was 334.5 MB in the beginning and 554.6 MB in the end (delta: -220.1 MB). Peak memory consumption was 48.8 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 551]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 31 locations, 3 error locations. SAFE Result, 2.6s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 97 SDtfs, 150 SDslu, 596 SDs, 0 SdLazy, 601 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 122 GetRequests, 27 SyntacticMatches, 4 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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, 5 MinimizatonAttempts, 5 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 140 NumberOfCodeBlocks, 140 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 133 ConstructedInterpolants, 2 QuantifiedInterpolants, 23057 SizeOfPredicates, 20 NumberOfNonLiveVariables, 229 ConjunctsInSsa, 92 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 0/22 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_12-05-54-106.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-04_12-05-54-106.csv Received shutdown request...