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_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/array-memsafety/cstrncat-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:03:18,574 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:03:18,576 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:03:18,588 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:03:18,589 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:03:18,589 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:03:18,590 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:03:18,592 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:03:18,593 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:03:18,594 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:03:18,595 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 04:03:18,595 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 04:03:18,596 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 04:03:18,597 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 04:03:18,598 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 04:03:18,600 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 04:03:18,602 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 04:03:18,603 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 04:03:18,604 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 04:03:18,605 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 04:03:18,607 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 04:03:18,607 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 04:03:18,608 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 04:03:18,609 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 04:03:18,609 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 04:03:18,610 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 04:03:18,611 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 04:03:18,611 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 04:03:18,611 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 04:03:18,611 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 04:03:18,612 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 04:03:18,612 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-02-04 04:03:18,621 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:03:18,621 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:03:18,622 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:03:18,622 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:03:18,622 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:03:18,623 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:03:18,623 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:03:18,623 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:03:18,623 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:03:18,623 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:03:18,623 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:03:18,623 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:03:18,623 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:03:18,623 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:03:18,623 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:03:18,624 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:03:18,624 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:03:18,624 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:03:18,624 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:03:18,624 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:03:18,624 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:03:18,624 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:03:18,624 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-04 04:03:18,625 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-04 04:03:18,625 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-02-04 04:03:18,653 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:03:18,662 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:03:18,664 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:03:18,665 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:03:18,666 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:03:18,666 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-02-04 04:03:18,799 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:03:18,800 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:03:18,801 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:03:18,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:03:18,805 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:03:18,806 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:03:18" (1/1) ... [2018-02-04 04:03:18,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3db90158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:18, skipping insertion in model container [2018-02-04 04:03:18,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:03:18" (1/1) ... [2018-02-04 04:03:18,818 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:03:18,846 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:03:18,939 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:03:18,954 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:03:18,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:18 WrapperNode [2018-02-04 04:03:18,960 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:03:18,961 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:03:18,961 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:03:18,961 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:03:18,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:18" (1/1) ... [2018-02-04 04:03:18,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:18" (1/1) ... [2018-02-04 04:03:18,978 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:18" (1/1) ... [2018-02-04 04:03:18,978 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:18" (1/1) ... [2018-02-04 04:03:18,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:18" (1/1) ... [2018-02-04 04:03:18,984 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:18" (1/1) ... [2018-02-04 04:03:18,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:18" (1/1) ... [2018-02-04 04:03:18,987 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:03:18,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:03:18,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:03:18,987 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:03:18,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:18" (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 04:03:19,024 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:03:19,024 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:03:19,024 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrncat [2018-02-04 04:03:19,024 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:03:19,025 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 04:03:19,025 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 04:03:19,025 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:03:19,025 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:03:19,025 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:03:19,025 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 04:03:19,025 INFO L128 BoogieDeclarations]: Found specification of procedure cstrncat [2018-02-04 04:03:19,025 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:03:19,026 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:03:19,026 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:03:19,183 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:03:19,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:03:19 BoogieIcfgContainer [2018-02-04 04:03:19,183 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:03:19,184 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:03:19,184 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:03:19,185 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:03:19,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:03:18" (1/3) ... [2018-02-04 04:03:19,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d3483a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:03:19, skipping insertion in model container [2018-02-04 04:03:19,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:18" (2/3) ... [2018-02-04 04:03:19,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d3483a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:03:19, skipping insertion in model container [2018-02-04 04:03:19,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:03:19" (3/3) ... [2018-02-04 04:03:19,187 INFO L107 eAbstractionObserver]: Analyzing ICFG cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-02-04 04:03:19,193 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:03:19,199 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2018-02-04 04:03:19,222 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:03:19,223 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:03:19,223 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-04 04:03:19,223 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-04 04:03:19,223 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:03:19,223 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:03:19,223 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:03:19,223 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:03:19,224 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:03:19,233 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states. [2018-02-04 04:03:19,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-02-04 04:03:19,248 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:19,249 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:03:19,249 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, cstrncatErr7RequiresViolation, cstrncatErr5RequiresViolation, cstrncatErr0RequiresViolation, cstrncatErr3RequiresViolation, cstrncatErr9RequiresViolation, cstrncatErr1RequiresViolation, cstrncatErr2RequiresViolation, cstrncatErr8RequiresViolation, cstrncatErr6RequiresViolation, cstrncatErr4RequiresViolation]=== [2018-02-04 04:03:19,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1927484354, now seen corresponding path program 1 times [2018-02-04 04:03:19,254 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:19,255 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:19,291 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:19,291 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:19,291 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:19,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:19,332 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:19,383 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 04:03:19,385 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:03:19,386 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-04 04:03:19,387 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 04:03:19,398 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 04:03:19,399 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 04:03:19,400 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 3 states. [2018-02-04 04:03:19,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:03:19,533 INFO L93 Difference]: Finished difference Result 59 states and 66 transitions. [2018-02-04 04:03:19,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 04:03:19,534 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-02-04 04:03:19,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:03:19,542 INFO L225 Difference]: With dead ends: 59 [2018-02-04 04:03:19,542 INFO L226 Difference]: Without dead ends: 55 [2018-02-04 04:03:19,543 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 04:03:19,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-02-04 04:03:19,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2018-02-04 04:03:19,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-02-04 04:03:19,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 61 transitions. [2018-02-04 04:03:19,567 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 61 transitions. Word has length 11 [2018-02-04 04:03:19,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:03:19,568 INFO L432 AbstractCegarLoop]: Abstraction has 55 states and 61 transitions. [2018-02-04 04:03:19,568 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 04:03:19,568 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 61 transitions. [2018-02-04 04:03:19,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-04 04:03:19,568 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:19,568 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:03:19,568 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, cstrncatErr7RequiresViolation, cstrncatErr5RequiresViolation, cstrncatErr0RequiresViolation, cstrncatErr3RequiresViolation, cstrncatErr9RequiresViolation, cstrncatErr1RequiresViolation, cstrncatErr2RequiresViolation, cstrncatErr8RequiresViolation, cstrncatErr6RequiresViolation, cstrncatErr4RequiresViolation]=== [2018-02-04 04:03:19,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1621249811, now seen corresponding path program 1 times [2018-02-04 04:03:19,569 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:19,569 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:19,569 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:19,569 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:19,570 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:19,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:19,577 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:19,605 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 04:03:19,605 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:03:19,605 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:03:19,606 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:03:19,606 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:03:19,607 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:03:19,607 INFO L87 Difference]: Start difference. First operand 55 states and 61 transitions. Second operand 5 states. [2018-02-04 04:03:19,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:03:19,670 INFO L93 Difference]: Finished difference Result 58 states and 65 transitions. [2018-02-04 04:03:19,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:03:19,671 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-02-04 04:03:19,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:03:19,672 INFO L225 Difference]: With dead ends: 58 [2018-02-04 04:03:19,672 INFO L226 Difference]: Without dead ends: 55 [2018-02-04 04:03:19,673 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-02-04 04:03:19,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-02-04 04:03:19,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2018-02-04 04:03:19,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-02-04 04:03:19,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 60 transitions. [2018-02-04 04:03:19,678 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 60 transitions. Word has length 15 [2018-02-04 04:03:19,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:03:19,678 INFO L432 AbstractCegarLoop]: Abstraction has 55 states and 60 transitions. [2018-02-04 04:03:19,678 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:03:19,678 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 60 transitions. [2018-02-04 04:03:19,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-04 04:03:19,679 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:19,679 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:03:19,679 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, cstrncatErr7RequiresViolation, cstrncatErr5RequiresViolation, cstrncatErr0RequiresViolation, cstrncatErr3RequiresViolation, cstrncatErr9RequiresViolation, cstrncatErr1RequiresViolation, cstrncatErr2RequiresViolation, cstrncatErr8RequiresViolation, cstrncatErr6RequiresViolation, cstrncatErr4RequiresViolation]=== [2018-02-04 04:03:19,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1993659115, now seen corresponding path program 1 times [2018-02-04 04:03:19,679 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:19,680 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:19,680 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:19,681 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:19,681 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:19,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:19,697 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:19,704 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Unknown lemma type! at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:299) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.access$1(Interpolator.java:263) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$ProofTreeWalker.walk(Interpolator.java:132) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:220) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:201) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:915) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:281) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:199) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackTraceAbstractionRefinementStrategy.getTraceCheck(MultiTrackTraceAbstractionRefinementStrategy.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:397) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:381) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:316) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:115) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:119) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-02-04 04:03:19,711 INFO L168 Benchmark]: Toolchain (without parser) took 911.44 ms. Allocated memory was 399.5 MB in the beginning and 609.2 MB in the end (delta: 209.7 MB). Free memory was 357.5 MB in the beginning and 556.7 MB in the end (delta: -199.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 5.3 GB. [2018-02-04 04:03:19,713 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 399.5 MB. Free memory is still 362.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:03:19,713 INFO L168 Benchmark]: CACSL2BoogieTranslator took 159.40 ms. Allocated memory is still 399.5 MB. Free memory was 356.2 MB in the beginning and 345.6 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:03:19,713 INFO L168 Benchmark]: Boogie Preprocessor took 26.21 ms. Allocated memory is still 399.5 MB. Free memory was 345.6 MB in the beginning and 344.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-04 04:03:19,714 INFO L168 Benchmark]: RCFGBuilder took 196.31 ms. Allocated memory is still 399.5 MB. Free memory was 344.2 MB in the beginning and 321.7 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 5.3 GB. [2018-02-04 04:03:19,714 INFO L168 Benchmark]: TraceAbstraction took 526.99 ms. Allocated memory was 399.5 MB in the beginning and 609.2 MB in the end (delta: 209.7 MB). Free memory was 321.7 MB in the beginning and 556.7 MB in the end (delta: -235.0 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:03:19,717 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 399.5 MB. Free memory is still 362.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 159.40 ms. Allocated memory is still 399.5 MB. Free memory was 356.2 MB in the beginning and 345.6 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 26.21 ms. Allocated memory is still 399.5 MB. Free memory was 345.6 MB in the beginning and 344.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 196.31 ms. Allocated memory is still 399.5 MB. Free memory was 344.2 MB in the beginning and 321.7 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 5.3 GB. * TraceAbstraction took 526.99 ms. Allocated memory was 399.5 MB in the beginning and 609.2 MB in the end (delta: 209.7 MB). Free memory was 321.7 MB in the beginning and 556.7 MB in the end (delta: -235.0 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Unknown lemma type! de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Unknown lemma type!: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:299) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrncat-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_04-03-19-724.csv Received shutdown request...