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/array03-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:03:04,020 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:03:04,021 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:03:04,033 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:03:04,034 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:03:04,035 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:03:04,036 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:03:04,038 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:03:04,039 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:03:04,040 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:03:04,041 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 04:03:04,041 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 04:03:04,042 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 04:03:04,043 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 04:03:04,044 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 04:03:04,046 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 04:03:04,047 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 04:03:04,049 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 04:03:04,050 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 04:03:04,050 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 04:03:04,052 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 04:03:04,052 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 04:03:04,052 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 04:03:04,053 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 04:03:04,054 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 04:03:04,055 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 04:03:04,055 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 04:03:04,056 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 04:03:04,056 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 04:03:04,056 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 04:03:04,057 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 04:03:04,057 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 04:03:04,068 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:03:04,068 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:03:04,069 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:03:04,069 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:03:04,070 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:03:04,070 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:03:04,070 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:03:04,070 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:03:04,070 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:03:04,070 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:03:04,071 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:03:04,071 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:03:04,071 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:03:04,071 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:03:04,071 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:03:04,071 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:03:04,072 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:03:04,072 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:03:04,072 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:03:04,072 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:03:04,072 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:03:04,072 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:03:04,073 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-04 04:03:04,073 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-04 04:03:04,073 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-02-04 04:03:04,103 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:03:04,113 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:03:04,117 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:03:04,118 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:03:04,118 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:03:04,119 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/array03-alloca_true-valid-memsafety_true-termination.i [2018-02-04 04:03:04,261 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:03:04,262 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:03:04,263 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:03:04,263 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:03:04,269 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:03:04,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:03:04" (1/1) ... [2018-02-04 04:03:04,273 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68407382 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:04, skipping insertion in model container [2018-02-04 04:03:04,273 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:03:04" (1/1) ... [2018-02-04 04:03:04,289 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:03:04,318 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:03:04,417 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:03:04,429 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:03:04,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:04 WrapperNode [2018-02-04 04:03:04,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:03:04,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:03:04,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:03:04,433 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:03:04,441 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:04" (1/1) ... [2018-02-04 04:03:04,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:04" (1/1) ... [2018-02-04 04:03:04,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:04" (1/1) ... [2018-02-04 04:03:04,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:04" (1/1) ... [2018-02-04 04:03:04,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:04" (1/1) ... [2018-02-04 04:03:04,452 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:04" (1/1) ... [2018-02-04 04:03:04,453 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:04" (1/1) ... [2018-02-04 04:03:04,454 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:03:04,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:03:04,455 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:03:04,455 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:03:04,455 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:04" (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 04:03:04,488 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:03:04,489 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:03:04,489 INFO L136 BoogieDeclarations]: Found implementation of procedure test_fun [2018-02-04 04:03:04,489 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:03:04,489 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 04:03:04,489 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 04:03:04,489 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:03:04,489 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:03:04,489 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:03:04,490 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 04:03:04,490 INFO L128 BoogieDeclarations]: Found specification of procedure test_fun [2018-02-04 04:03:04,490 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:03:04,490 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:03:04,490 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:03:04,653 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:03:04,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:03:04 BoogieIcfgContainer [2018-02-04 04:03:04,653 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:03:04,654 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:03:04,654 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:03:04,656 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:03:04,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:03:04" (1/3) ... [2018-02-04 04:03:04,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31b5d00c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:03:04, skipping insertion in model container [2018-02-04 04:03:04,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:04" (2/3) ... [2018-02-04 04:03:04,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31b5d00c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:03:04, skipping insertion in model container [2018-02-04 04:03:04,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:03:04" (3/3) ... [2018-02-04 04:03:04,658 INFO L107 eAbstractionObserver]: Analyzing ICFG array03-alloca_true-valid-memsafety_true-termination.i [2018-02-04 04:03:04,664 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:03:04,668 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2018-02-04 04:03:04,698 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:03:04,699 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:03:04,699 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-04 04:03:04,699 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-04 04:03:04,699 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:03:04,699 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:03:04,699 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:03:04,700 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:03:04,700 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:03:04,712 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2018-02-04 04:03:04,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-04 04:03:04,721 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:04,722 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:03:04,722 INFO L371 AbstractCegarLoop]: === Iteration 1 === [test_funErr8RequiresViolation, test_funErr13RequiresViolation, test_funErr4RequiresViolation, test_funErr7RequiresViolation, test_funErr12RequiresViolation, test_funErr5RequiresViolation, test_funErr10RequiresViolation, test_funErr0RequiresViolation, test_funErr9RequiresViolation, test_funErr2RequiresViolation, test_funErr6RequiresViolation, test_funErr11RequiresViolation, test_funErr3RequiresViolation, test_funErr1RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 04:03:04,726 INFO L82 PathProgramCache]: Analyzing trace with hash 1616393893, now seen corresponding path program 1 times [2018-02-04 04:03:04,728 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:04,728 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:04,772 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:04,773 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:04,773 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:04,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:04,826 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:04,926 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 04:03:04,928 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:03:04,928 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:03:04,930 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:03:04,941 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:03:04,942 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 04:03:04,944 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 6 states. [2018-02-04 04:03:05,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:03:05,070 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2018-02-04 04:03:05,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:03:05,071 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-02-04 04:03:05,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:03:05,122 INFO L225 Difference]: With dead ends: 44 [2018-02-04 04:03:05,122 INFO L226 Difference]: Without dead ends: 41 [2018-02-04 04:03:05,124 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-02-04 04:03:05,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-02-04 04:03:05,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-02-04 04:03:05,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-02-04 04:03:05,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2018-02-04 04:03:05,155 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 14 [2018-02-04 04:03:05,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:03:05,156 INFO L432 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2018-02-04 04:03:05,156 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:03:05,156 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2018-02-04 04:03:05,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-04 04:03:05,156 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:05,157 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:03:05,157 INFO L371 AbstractCegarLoop]: === Iteration 2 === [test_funErr8RequiresViolation, test_funErr13RequiresViolation, test_funErr4RequiresViolation, test_funErr7RequiresViolation, test_funErr12RequiresViolation, test_funErr5RequiresViolation, test_funErr10RequiresViolation, test_funErr0RequiresViolation, test_funErr9RequiresViolation, test_funErr2RequiresViolation, test_funErr6RequiresViolation, test_funErr11RequiresViolation, test_funErr3RequiresViolation, test_funErr1RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 04:03:05,157 INFO L82 PathProgramCache]: Analyzing trace with hash 1616393894, now seen corresponding path program 1 times [2018-02-04 04:03:05,157 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:05,158 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:05,159 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:05,159 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:05,159 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:05,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:05,173 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:05,268 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 04:03:05,268 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:03:05,268 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-04 04:03:05,270 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-04 04:03:05,270 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-04 04:03:05,270 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-02-04 04:03:05,270 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand 7 states. [2018-02-04 04:03:05,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:03:05,406 INFO L93 Difference]: Finished difference Result 60 states and 68 transitions. [2018-02-04 04:03:05,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-04 04:03:05,407 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2018-02-04 04:03:05,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:03:05,409 INFO L225 Difference]: With dead ends: 60 [2018-02-04 04:03:05,410 INFO L226 Difference]: Without dead ends: 60 [2018-02-04 04:03:05,410 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-02-04 04:03:05,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-02-04 04:03:05,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 57. [2018-02-04 04:03:05,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-02-04 04:03:05,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 65 transitions. [2018-02-04 04:03:05,416 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 65 transitions. Word has length 14 [2018-02-04 04:03:05,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:03:05,417 INFO L432 AbstractCegarLoop]: Abstraction has 57 states and 65 transitions. [2018-02-04 04:03:05,417 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-04 04:03:05,417 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 65 transitions. [2018-02-04 04:03:05,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-02-04 04:03:05,417 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:05,418 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 04:03:05,418 INFO L371 AbstractCegarLoop]: === Iteration 3 === [test_funErr8RequiresViolation, test_funErr13RequiresViolation, test_funErr4RequiresViolation, test_funErr7RequiresViolation, test_funErr12RequiresViolation, test_funErr5RequiresViolation, test_funErr10RequiresViolation, test_funErr0RequiresViolation, test_funErr9RequiresViolation, test_funErr2RequiresViolation, test_funErr6RequiresViolation, test_funErr11RequiresViolation, test_funErr3RequiresViolation, test_funErr1RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 04:03:05,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1978668179, now seen corresponding path program 1 times [2018-02-04 04:03:05,418 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:05,418 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:05,419 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:05,419 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:05,419 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:05,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:05,429 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:05,474 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 04:03:05,475 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:03:05,475 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:03:05,475 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:03:05,476 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:03:05,476 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:03:05,476 INFO L87 Difference]: Start difference. First operand 57 states and 65 transitions. Second operand 5 states. [2018-02-04 04:03:05,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:03:05,523 INFO L93 Difference]: Finished difference Result 60 states and 67 transitions. [2018-02-04 04:03:05,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:03:05,524 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-02-04 04:03:05,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:03:05,524 INFO L225 Difference]: With dead ends: 60 [2018-02-04 04:03:05,525 INFO L226 Difference]: Without dead ends: 58 [2018-02-04 04:03:05,525 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 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 04:03:05,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-02-04 04:03:05,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2018-02-04 04:03:05,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-02-04 04:03:05,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 64 transitions. [2018-02-04 04:03:05,529 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 64 transitions. Word has length 18 [2018-02-04 04:03:05,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:03:05,530 INFO L432 AbstractCegarLoop]: Abstraction has 57 states and 64 transitions. [2018-02-04 04:03:05,530 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:03:05,530 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 64 transitions. [2018-02-04 04:03:05,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-02-04 04:03:05,531 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:05,531 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:03:05,531 INFO L371 AbstractCegarLoop]: === Iteration 4 === [test_funErr8RequiresViolation, test_funErr13RequiresViolation, test_funErr4RequiresViolation, test_funErr7RequiresViolation, test_funErr12RequiresViolation, test_funErr5RequiresViolation, test_funErr10RequiresViolation, test_funErr0RequiresViolation, test_funErr9RequiresViolation, test_funErr2RequiresViolation, test_funErr6RequiresViolation, test_funErr11RequiresViolation, test_funErr3RequiresViolation, test_funErr1RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 04:03:05,531 INFO L82 PathProgramCache]: Analyzing trace with hash 35069262, now seen corresponding path program 1 times [2018-02-04 04:03:05,531 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:05,531 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:05,532 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:05,532 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:05,532 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:05,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:05,544 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:05,615 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:03:05,616 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 04:03:05,616 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 04:03:05,617 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:05,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:05,654 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 04:03:05,697 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:03:05,697 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-02-04 04:03:05,697 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 12 [2018-02-04 04:03:05,698 INFO L409 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-02-04 04:03:05,698 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-02-04 04:03:05,698 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2018-02-04 04:03:05,698 INFO L87 Difference]: Start difference. First operand 57 states and 64 transitions. Second operand 12 states. [2018-02-04 04:03:05,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:03:05,814 INFO L93 Difference]: Finished difference Result 86 states and 95 transitions. [2018-02-04 04:03:05,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-02-04 04:03:05,814 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 23 [2018-02-04 04:03:05,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:03:05,815 INFO L225 Difference]: With dead ends: 86 [2018-02-04 04:03:05,815 INFO L226 Difference]: Without dead ends: 86 [2018-02-04 04:03:05,815 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2018-02-04 04:03:05,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-02-04 04:03:05,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 82. [2018-02-04 04:03:05,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-02-04 04:03:05,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 92 transitions. [2018-02-04 04:03:05,821 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 92 transitions. Word has length 23 [2018-02-04 04:03:05,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:03:05,821 INFO L432 AbstractCegarLoop]: Abstraction has 82 states and 92 transitions. [2018-02-04 04:03:05,822 INFO L433 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-02-04 04:03:05,822 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 92 transitions. [2018-02-04 04:03:05,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-02-04 04:03:05,822 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:05,822 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:03:05,823 INFO L371 AbstractCegarLoop]: === Iteration 5 === [test_funErr8RequiresViolation, test_funErr13RequiresViolation, test_funErr4RequiresViolation, test_funErr7RequiresViolation, test_funErr12RequiresViolation, test_funErr5RequiresViolation, test_funErr10RequiresViolation, test_funErr0RequiresViolation, test_funErr9RequiresViolation, test_funErr2RequiresViolation, test_funErr6RequiresViolation, test_funErr11RequiresViolation, test_funErr3RequiresViolation, test_funErr1RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 04:03:05,823 INFO L82 PathProgramCache]: Analyzing trace with hash -1553278640, now seen corresponding path program 1 times [2018-02-04 04:03:05,823 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:05,823 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:05,824 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:05,824 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:05,824 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:05,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:05,834 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:05,922 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:03:05,923 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 04:03:05,923 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 04:03:05,923 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:05,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:05,943 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 04:03:05,966 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 8 treesize of output 7 [2018-02-04 04:03:05,967 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 04:03:05,971 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 04:03:05,971 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-02-04 04:03:06,327 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:03:06,327 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-02-04 04:03:06,328 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2018-02-04 04:03:06,328 INFO L409 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-02-04 04:03:06,328 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-02-04 04:03:06,328 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=202, Unknown=1, NotChecked=0, Total=240 [2018-02-04 04:03:06,328 INFO L87 Difference]: Start difference. First operand 82 states and 92 transitions. Second operand 16 states. [2018-02-04 04:03:06,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:03:06,633 INFO L93 Difference]: Finished difference Result 76 states and 86 transitions. [2018-02-04 04:03:06,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-02-04 04:03:06,633 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 23 [2018-02-04 04:03:06,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:03:06,634 INFO L225 Difference]: With dead ends: 76 [2018-02-04 04:03:06,634 INFO L226 Difference]: Without dead ends: 76 [2018-02-04 04:03:06,634 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=83, Invalid=336, Unknown=1, NotChecked=0, Total=420 [2018-02-04 04:03:06,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-02-04 04:03:06,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 61. [2018-02-04 04:03:06,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-02-04 04:03:06,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 68 transitions. [2018-02-04 04:03:06,638 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 68 transitions. Word has length 23 [2018-02-04 04:03:06,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:03:06,638 INFO L432 AbstractCegarLoop]: Abstraction has 61 states and 68 transitions. [2018-02-04 04:03:06,638 INFO L433 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-02-04 04:03:06,638 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 68 transitions. [2018-02-04 04:03:06,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-02-04 04:03:06,639 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:06,639 INFO L351 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:03:06,639 INFO L371 AbstractCegarLoop]: === Iteration 6 === [test_funErr8RequiresViolation, test_funErr13RequiresViolation, test_funErr4RequiresViolation, test_funErr7RequiresViolation, test_funErr12RequiresViolation, test_funErr5RequiresViolation, test_funErr10RequiresViolation, test_funErr0RequiresViolation, test_funErr9RequiresViolation, test_funErr2RequiresViolation, test_funErr6RequiresViolation, test_funErr11RequiresViolation, test_funErr3RequiresViolation, test_funErr1RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 04:03:06,639 INFO L82 PathProgramCache]: Analyzing trace with hash -1156880581, now seen corresponding path program 1 times [2018-02-04 04:03:06,639 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:06,639 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:06,640 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:06,640 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:06,640 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:06,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:06,650 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:06,654 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 04:03:06,656 INFO L168 Benchmark]: Toolchain (without parser) took 2394.85 ms. Allocated memory was 401.6 MB in the beginning and 629.7 MB in the end (delta: 228.1 MB). Free memory was 359.6 MB in the beginning and 560.2 MB in the end (delta: -200.6 MB). Peak memory consumption was 27.5 MB. Max. memory is 5.3 GB. [2018-02-04 04:03:06,657 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 401.6 MB. Free memory is still 364.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:03:06,657 INFO L168 Benchmark]: CACSL2BoogieTranslator took 169.86 ms. Allocated memory is still 401.6 MB. Free memory was 358.3 MB in the beginning and 347.7 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:03:06,657 INFO L168 Benchmark]: Boogie Preprocessor took 21.49 ms. Allocated memory is still 401.6 MB. Free memory was 347.7 MB in the beginning and 346.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-04 04:03:06,657 INFO L168 Benchmark]: RCFGBuilder took 199.00 ms. Allocated memory is still 401.6 MB. Free memory was 346.4 MB in the beginning and 326.5 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 5.3 GB. [2018-02-04 04:03:06,658 INFO L168 Benchmark]: TraceAbstraction took 2001.71 ms. Allocated memory was 401.6 MB in the beginning and 629.7 MB in the end (delta: 228.1 MB). Free memory was 326.5 MB in the beginning and 560.2 MB in the end (delta: -233.6 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:03:06,658 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 401.6 MB. Free memory is still 364.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 169.86 ms. Allocated memory is still 401.6 MB. Free memory was 358.3 MB in the beginning and 347.7 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 21.49 ms. Allocated memory is still 401.6 MB. Free memory was 347.7 MB in the beginning and 346.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 199.00 ms. Allocated memory is still 401.6 MB. Free memory was 346.4 MB in the beginning and 326.5 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 2001.71 ms. Allocated memory was 401.6 MB in the beginning and 629.7 MB in the end (delta: 228.1 MB). Free memory was 326.5 MB in the beginning and 560.2 MB in the end (delta: -233.6 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/array03-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_04-03-06-663.csv Received shutdown request...