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 --cacsl2boogietranslator.bitprecise.bitfields false -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memsetNonZero2_true-valid-memsafety_true-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-11 23:07:16,469 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 23:07:16,470 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 23:07:16,481 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-11 23:07:16,482 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-11 23:07:16,482 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-11 23:07:16,483 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-11 23:07:16,485 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-11 23:07:16,487 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-11 23:07:16,487 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-11 23:07:16,488 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-11 23:07:16,488 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-11 23:07:16,489 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-11 23:07:16,490 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-11 23:07:16,491 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-11 23:07:16,492 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-11 23:07:16,494 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-11 23:07:16,495 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-11 23:07:16,496 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-11 23:07:16,497 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-11 23:07:16,499 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-11 23:07:16,499 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-11 23:07:16,499 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-11 23:07:16,500 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-11 23:07:16,500 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-11 23:07:16,501 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-11 23:07:16,502 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-11 23:07:16,502 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-11 23:07:16,503 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-11 23:07:16,503 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-11 23:07:16,503 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-11 23:07:16,504 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 [2018-04-11 23:07:16,526 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 23:07:16,527 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 23:07:16,527 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-11 23:07:16,528 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-11 23:07:16,528 INFO L133 SettingsManager]: * Use SBE=true [2018-04-11 23:07:16,528 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 23:07:16,528 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 23:07:16,528 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 23:07:16,528 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 23:07:16,529 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 23:07:16,529 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 23:07:16,529 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 23:07:16,529 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-11 23:07:16,529 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 23:07:16,529 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 23:07:16,529 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 23:07:16,530 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-11 23:07:16,530 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-11 23:07:16,530 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 23:07:16,530 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 23:07:16,530 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 23:07:16,530 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-11 23:07:16,530 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-11 23:07:16,531 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-04-11 23:07:16,559 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 23:07:16,569 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 23:07:16,572 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 23:07:16,573 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 23:07:16,573 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 23:07:16,574 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memsetNonZero2_true-valid-memsafety_true-termination.c [2018-04-11 23:07:16,944 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG8001ac2e9 [2018-04-11 23:07:17,053 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 23:07:17,054 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 23:07:17,054 INFO L168 CDTParser]: Scanning memsetNonZero2_true-valid-memsafety_true-termination.c [2018-04-11 23:07:17,055 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 23:07:17,055 INFO L215 ultiparseSymbolTable]: [2018-04-11 23:07:17,055 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 23:07:17,056 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in memsetNonZero2_true-valid-memsafety_true-termination.c [2018-04-11 23:07:17,056 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-11 23:07:17,056 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemsetNonZero__true_valid_memsafety_true_termination_c__size_t in memsetNonZero2_true-valid-memsafety_true-termination.c [2018-04-11 23:07:17,056 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemsetNonZero__true_valid_memsafety_true_termination_c____kernel_size_t in memsetNonZero2_true-valid-memsafety_true-termination.c [2018-04-11 23:07:17,056 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemsetNonZero__true_valid_memsafety_true_termination_c____u32 in memsetNonZero2_true-valid-memsafety_true-termination.c [2018-04-11 23:07:17,094 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG8001ac2e9 [2018-04-11 23:07:17,097 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 23:07:17,098 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 23:07:17,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 23:07:17,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 23:07:17,103 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 23:07:17,104 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 11:07:17" (1/1) ... [2018-04-11 23:07:17,106 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59d254ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:07:17, skipping insertion in model container [2018-04-11 23:07:17,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 11:07:17" (1/1) ... [2018-04-11 23:07:17,116 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 23:07:17,124 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 23:07:17,211 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 23:07:17,228 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 23:07:17,232 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 7 non ball SCCs. Number of states in SCCs 7. [2018-04-11 23:07:17,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:07:17 WrapperNode [2018-04-11 23:07:17,237 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 23:07:17,237 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 23:07:17,237 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 23:07:17,237 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 23:07:17,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:07:17" (1/1) ... [2018-04-11 23:07:17,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:07:17" (1/1) ... [2018-04-11 23:07:17,250 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:07:17" (1/1) ... [2018-04-11 23:07:17,250 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:07:17" (1/1) ... [2018-04-11 23:07:17,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:07:17" (1/1) ... [2018-04-11 23:07:17,255 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:07:17" (1/1) ... [2018-04-11 23:07:17,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:07:17" (1/1) ... [2018-04-11 23:07:17,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 23:07:17,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 23:07:17,257 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 23:07:17,257 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 23:07:17,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:07:17" (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 [2018-04-11 23:07:17,293 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 23:07:17,293 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 23:07:17,294 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 23:07:17,294 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-04-11 23:07:17,294 INFO L128 BoogieDeclarations]: Found specification of procedure memset [2018-04-11 23:07:17,294 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 23:07:17,294 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 23:07:17,294 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-04-11 23:07:17,294 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 23:07:17,294 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 23:07:17,294 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 23:07:17,434 WARN L446 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-04-11 23:07:17,469 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 23:07:17,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 11:07:17 BoogieIcfgContainer [2018-04-11 23:07:17,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 23:07:17,471 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 23:07:17,471 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 23:07:17,473 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 23:07:17,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 11:07:17" (1/3) ... [2018-04-11 23:07:17,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65e8504f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 11:07:17, skipping insertion in model container [2018-04-11 23:07:17,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:07:17" (2/3) ... [2018-04-11 23:07:17,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65e8504f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 11:07:17, skipping insertion in model container [2018-04-11 23:07:17,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 11:07:17" (3/3) ... [2018-04-11 23:07:17,476 INFO L107 eAbstractionObserver]: Analyzing ICFG memsetNonZero2_true-valid-memsafety_true-termination.c [2018-04-11 23:07:17,484 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-11 23:07:17,489 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-04-11 23:07:17,512 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 23:07:17,513 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 23:07:17,513 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-11 23:07:17,513 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-11 23:07:17,513 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-11 23:07:17,513 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 23:07:17,513 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 23:07:17,513 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 23:07:17,513 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 23:07:17,514 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 23:07:17,521 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-04-11 23:07:17,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-04-11 23:07:17,528 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 23:07:17,529 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-04-11 23:07:17,529 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 23:07:17,534 INFO L82 PathProgramCache]: Analyzing trace with hash 682221498, now seen corresponding path program 1 times [2018-04-11 23:07:17,535 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 23:07:17,536 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 23:07:17,571 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 23:07:17,571 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 23:07:17,572 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 23:07:17,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 23:07:17,606 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 23:07:17,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 23:07:17,646 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 23:07:17,646 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-04-11 23:07:17,647 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-11 23:07:17,655 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-11 23:07:17,655 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-11 23:07:17,656 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 3 states. [2018-04-11 23:07:17,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 23:07:17,684 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2018-04-11 23:07:17,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-11 23:07:17,686 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-04-11 23:07:17,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 23:07:17,694 INFO L225 Difference]: With dead ends: 21 [2018-04-11 23:07:17,694 INFO L226 Difference]: Without dead ends: 18 [2018-04-11 23:07:17,696 INFO L567 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 [2018-04-11 23:07:17,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-04-11 23:07:17,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-04-11 23:07:17,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-04-11 23:07:17,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-04-11 23:07:17,724 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 7 [2018-04-11 23:07:17,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 23:07:17,724 INFO L459 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2018-04-11 23:07:17,724 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-11 23:07:17,724 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2018-04-11 23:07:17,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-04-11 23:07:17,725 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 23:07:17,725 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-04-11 23:07:17,725 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 23:07:17,725 INFO L82 PathProgramCache]: Analyzing trace with hash 682221499, now seen corresponding path program 1 times [2018-04-11 23:07:17,725 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 23:07:17,726 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 23:07:17,726 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 23:07:17,726 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 23:07:17,727 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 23:07:17,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 23:07:17,739 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 23:07:17,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 23:07:17,786 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 23:07:17,786 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-04-11 23:07:17,787 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-11 23:07:17,787 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-11 23:07:17,787 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-11 23:07:17,788 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 3 states. [2018-04-11 23:07:17,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 23:07:17,794 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2018-04-11 23:07:17,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-11 23:07:17,795 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-04-11 23:07:17,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 23:07:17,795 INFO L225 Difference]: With dead ends: 17 [2018-04-11 23:07:17,795 INFO L226 Difference]: Without dead ends: 17 [2018-04-11 23:07:17,796 INFO L567 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 [2018-04-11 23:07:17,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-04-11 23:07:17,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-04-11 23:07:17,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-04-11 23:07:17,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2018-04-11 23:07:17,797 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 7 [2018-04-11 23:07:17,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 23:07:17,798 INFO L459 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2018-04-11 23:07:17,798 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-11 23:07:17,798 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2018-04-11 23:07:17,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-04-11 23:07:17,798 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 23:07:17,798 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 23:07:17,798 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 23:07:17,798 INFO L82 PathProgramCache]: Analyzing trace with hash -898824040, now seen corresponding path program 1 times [2018-04-11 23:07:17,799 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 23:07:17,799 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 23:07:17,799 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 23:07:17,799 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 23:07:17,799 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 23:07:17,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 23:07:17,812 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 23:07:17,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 23:07:17,846 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 23:07:17,846 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 23:07:17,847 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 23:07:17,847 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 23:07:17,847 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 23:07:17,847 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 4 states. [2018-04-11 23:07:17,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 23:07:17,872 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2018-04-11 23:07:17,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 23:07:17,872 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-04-11 23:07:17,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 23:07:17,873 INFO L225 Difference]: With dead ends: 20 [2018-04-11 23:07:17,873 INFO L226 Difference]: Without dead ends: 18 [2018-04-11 23:07:17,873 INFO L567 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 [2018-04-11 23:07:17,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-04-11 23:07:17,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-04-11 23:07:17,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-04-11 23:07:17,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-04-11 23:07:17,875 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 16 [2018-04-11 23:07:17,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 23:07:17,875 INFO L459 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2018-04-11 23:07:17,875 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 23:07:17,875 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2018-04-11 23:07:17,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-04-11 23:07:17,875 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 23:07:17,876 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 23:07:17,876 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 23:07:17,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1616948477, now seen corresponding path program 1 times [2018-04-11 23:07:17,876 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 23:07:17,876 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 23:07:17,877 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 23:07:17,877 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 23:07:17,877 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 23:07:17,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 23:07:17,891 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 23:07:17,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 23:07:17,938 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 23:07:17,938 INFO L213 ckRefinementStrategy]: 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 [2018-04-11 23:07:17,946 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 23:07:17,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 23:07:17,965 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 23:07:18,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 23:07:18,058 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 23:07:18,058 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-04-11 23:07:18,059 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-11 23:07:18,059 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-11 23:07:18,059 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-04-11 23:07:18,059 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 8 states. [2018-04-11 23:07:18,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 23:07:18,090 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2018-04-11 23:07:18,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 23:07:18,091 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2018-04-11 23:07:18,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 23:07:18,091 INFO L225 Difference]: With dead ends: 21 [2018-04-11 23:07:18,091 INFO L226 Difference]: Without dead ends: 19 [2018-04-11 23:07:18,092 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-04-11 23:07:18,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-04-11 23:07:18,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-04-11 23:07:18,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-04-11 23:07:18,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-04-11 23:07:18,095 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 17 [2018-04-11 23:07:18,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 23:07:18,095 INFO L459 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2018-04-11 23:07:18,095 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-11 23:07:18,095 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-04-11 23:07:18,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-04-11 23:07:18,096 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 23:07:18,096 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 23:07:18,096 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 23:07:18,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1998482120, now seen corresponding path program 2 times [2018-04-11 23:07:18,096 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 23:07:18,096 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 23:07:18,097 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 23:07:18,097 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 23:07:18,097 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 23:07:18,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 23:07:18,109 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 23:07:18,146 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 23:07:18,146 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 23:07:18,146 INFO L213 ckRefinementStrategy]: 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 [2018-04-11 23:07:18,152 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 23:07:18,164 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-04-11 23:07:18,165 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 23:07:18,167 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 23:07:18,200 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:07:18,204 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 5 [2018-04-11 23:07:18,204 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 23:07:18,206 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 23:07:18,206 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-04-11 23:07:18,238 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_~#cstats~0.base| Int)) (and (= |c_#valid| (store |c_old(#valid)| |main_~#cstats~0.base| 0)) (= 0 (select |c_old(#valid)| |main_~#cstats~0.base|)))) is different from true [2018-04-11 23:07:18,241 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 23:07:18,264 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-04-11 23:07:18,264 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2018-04-11 23:07:18,265 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-11 23:07:18,265 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-11 23:07:18,265 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=52, Unknown=1, NotChecked=14, Total=90 [2018-04-11 23:07:18,265 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 10 states. [2018-04-11 23:07:18,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 23:07:18,391 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2018-04-11 23:07:18,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-11 23:07:18,391 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2018-04-11 23:07:18,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 23:07:18,391 INFO L225 Difference]: With dead ends: 21 [2018-04-11 23:07:18,391 INFO L226 Difference]: Without dead ends: 0 [2018-04-11 23:07:18,392 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=149, Unknown=1, NotChecked=26, Total=240 [2018-04-11 23:07:18,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-04-11 23:07:18,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-04-11 23:07:18,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-04-11 23:07:18,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-04-11 23:07:18,393 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2018-04-11 23:07:18,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 23:07:18,393 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-04-11 23:07:18,393 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-11 23:07:18,393 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-04-11 23:07:18,393 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-04-11 23:07:18,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.04 11:07:18 BoogieIcfgContainer [2018-04-11 23:07:18,397 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-11 23:07:18,397 INFO L168 Benchmark]: Toolchain (without parser) took 1299.84 ms. Allocated memory was 450.9 MB in the beginning and 524.8 MB in the end (delta: 73.9 MB). Free memory was 391.6 MB in the beginning and 375.6 MB in the end (delta: 16.0 MB). Peak memory consumption was 90.0 MB. Max. memory is 5.3 GB. [2018-04-11 23:07:18,398 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 450.9 MB. Free memory is still 411.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 23:07:18,398 INFO L168 Benchmark]: CACSL2BoogieTranslator took 138.58 ms. Allocated memory is still 450.9 MB. Free memory was 391.6 MB in the beginning and 379.8 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. [2018-04-11 23:07:18,398 INFO L168 Benchmark]: Boogie Preprocessor took 19.70 ms. Allocated memory is still 450.9 MB. Free memory is still 379.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 23:07:18,398 INFO L168 Benchmark]: RCFGBuilder took 213.59 ms. Allocated memory was 450.9 MB in the beginning and 524.8 MB in the end (delta: 73.9 MB). Free memory was 379.8 MB in the beginning and 485.5 MB in the end (delta: -105.8 MB). Peak memory consumption was 37.2 MB. Max. memory is 5.3 GB. [2018-04-11 23:07:18,399 INFO L168 Benchmark]: TraceAbstraction took 925.56 ms. Allocated memory is still 524.8 MB. Free memory was 485.5 MB in the beginning and 375.6 MB in the end (delta: 109.9 MB). Peak memory consumption was 109.9 MB. Max. memory is 5.3 GB. [2018-04-11 23:07:18,400 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 450.9 MB. Free memory is still 411.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 138.58 ms. Allocated memory is still 450.9 MB. Free memory was 391.6 MB in the beginning and 379.8 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 19.70 ms. Allocated memory is still 450.9 MB. Free memory is still 379.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * RCFGBuilder took 213.59 ms. Allocated memory was 450.9 MB in the beginning and 524.8 MB in the end (delta: 73.9 MB). Free memory was 379.8 MB in the beginning and 485.5 MB in the end (delta: -105.8 MB). Peak memory consumption was 37.2 MB. Max. memory is 5.3 GB. * TraceAbstraction took 925.56 ms. Allocated memory is still 524.8 MB. Free memory was 485.5 MB in the beginning and 375.6 MB in the end (delta: 109.9 MB). Peak memory consumption was 109.9 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 20]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 22]: 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, 22 locations, 3 error locations. SAFE Result, 0.8s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 74 SDtfs, 20 SDslu, 101 SDs, 0 SdLazy, 76 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 100 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 93 ConstructedInterpolants, 9 QuantifiedInterpolants, 3919 SizeOfPredicates, 2 NumberOfNonLiveVariables, 127 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 3/8 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/memsetNonZero2_true-valid-memsafety_true-termination.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-11_23-07-18-405.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memsetNonZero2_true-valid-memsafety_true-termination.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-11_23-07-18-405.csv Received shutdown request...