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_z3.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memsetNonZero3_true-valid-memsafety_true-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-10 17:06:51,807 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-10 17:06:51,809 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-10 17:06:51,819 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-10 17:06:51,819 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-10 17:06:51,820 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-10 17:06:51,821 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-10 17:06:51,823 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-10 17:06:51,824 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-10 17:06:51,825 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-10 17:06:51,826 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-10 17:06:51,826 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-10 17:06:51,827 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-10 17:06:51,828 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-10 17:06:51,828 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-10 17:06:51,830 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-10 17:06:51,832 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-10 17:06:51,833 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-10 17:06:51,834 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-10 17:06:51,835 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-10 17:06:51,837 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-10 17:06:51,837 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-10 17:06:51,837 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-10 17:06:51,838 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-10 17:06:51,839 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-10 17:06:51,840 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-10 17:06:51,840 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-10 17:06:51,841 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-10 17:06:51,841 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-10 17:06:51,841 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-10 17:06:51,842 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-10 17:06:51,842 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf [2018-04-10 17:06:51,860 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-10 17:06:51,861 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-10 17:06:51,862 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-10 17:06:51,862 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-10 17:06:51,862 INFO L133 SettingsManager]: * Use SBE=true [2018-04-10 17:06:51,862 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-10 17:06:51,862 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-10 17:06:51,863 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-10 17:06:51,863 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-10 17:06:51,863 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-10 17:06:51,863 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-10 17:06:51,863 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-10 17:06:51,863 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-10 17:06:51,864 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-10 17:06:51,864 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-10 17:06:51,864 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-10 17:06:51,864 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-10 17:06:51,864 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-10 17:06:51,864 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-10 17:06:51,864 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-10 17:06:51,865 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-10 17:06:51,865 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-04-10 17:06:51,865 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-04-10 17:06:51,865 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:06:51,893 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-10 17:06:51,900 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-10 17:06:51,903 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-10 17:06:51,904 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-10 17:06:51,904 INFO L276 PluginConnector]: CDTParser initialized [2018-04-10 17:06:51,904 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memsetNonZero3_true-valid-memsafety_true-termination.c [2018-04-10 17:06:52,175 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG9c5619662 [2018-04-10 17:06:52,272 INFO L287 CDTParser]: IsIndexed: true [2018-04-10 17:06:52,272 INFO L288 CDTParser]: Found 1 translation units. [2018-04-10 17:06:52,272 INFO L168 CDTParser]: Scanning memsetNonZero3_true-valid-memsafety_true-termination.c [2018-04-10 17:06:52,273 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-10 17:06:52,273 INFO L215 ultiparseSymbolTable]: [2018-04-10 17:06:52,273 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-10 17:06:52,273 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in memsetNonZero3_true-valid-memsafety_true-termination.c [2018-04-10 17:06:52,273 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-10 17:06:52,274 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemsetNonZero__true_valid_memsafety_true_termination_c____kernel_size_t in memsetNonZero3_true-valid-memsafety_true-termination.c [2018-04-10 17:06:52,274 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemsetNonZero__true_valid_memsafety_true_termination_c__size_t in memsetNonZero3_true-valid-memsafety_true-termination.c [2018-04-10 17:06:52,274 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemsetNonZero__true_valid_memsafety_true_termination_c____u32 in memsetNonZero3_true-valid-memsafety_true-termination.c [2018-04-10 17:06:52,285 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG9c5619662 [2018-04-10 17:06:52,287 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-10 17:06:52,288 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-10 17:06:52,289 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-10 17:06:52,289 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-10 17:06:52,293 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-10 17:06:52,293 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.04 05:06:52" (1/1) ... [2018-04-10 17:06:52,295 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@634ad89b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 05:06:52, skipping insertion in model container [2018-04-10 17:06:52,295 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.04 05:06:52" (1/1) ... [2018-04-10 17:06:52,305 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-10 17:06:52,312 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-10 17:06:52,417 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-10 17:06:52,437 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-10 17:06:52,442 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 7 non ball SCCs. Number of states in SCCs 7. [2018-04-10 17:06:52,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 05:06:52 WrapperNode [2018-04-10 17:06:52,447 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-10 17:06:52,448 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-10 17:06:52,448 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-10 17:06:52,448 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-10 17:06:52,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 05:06:52" (1/1) ... [2018-04-10 17:06:52,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 05:06:52" (1/1) ... [2018-04-10 17:06:52,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 05:06:52" (1/1) ... [2018-04-10 17:06:52,461 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 05:06:52" (1/1) ... [2018-04-10 17:06:52,462 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 05:06:52" (1/1) ... [2018-04-10 17:06:52,465 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 05:06:52" (1/1) ... [2018-04-10 17:06:52,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 05:06:52" (1/1) ... [2018-04-10 17:06:52,467 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-10 17:06:52,468 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-10 17:06:52,468 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-10 17:06:52,468 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-10 17:06:52,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 05:06:52" (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 [2018-04-10 17:06:52,505 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-10 17:06:52,505 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-10 17:06:52,505 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-10 17:06:52,505 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-04-10 17:06:52,505 INFO L128 BoogieDeclarations]: Found specification of procedure memset [2018-04-10 17:06:52,505 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-10 17:06:52,505 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-10 17:06:52,505 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-04-10 17:06:52,505 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-10 17:06:52,506 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-10 17:06:52,506 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-10 17:06:52,621 WARN L446 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-04-10 17:06:52,663 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-10 17:06:52,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.04 05:06:52 BoogieIcfgContainer [2018-04-10 17:06:52,663 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-10 17:06:52,664 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-10 17:06:52,664 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-10 17:06:52,666 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-10 17:06:52,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.04 05:06:52" (1/3) ... [2018-04-10 17:06:52,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@136b980c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.04 05:06:52, skipping insertion in model container [2018-04-10 17:06:52,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 05:06:52" (2/3) ... [2018-04-10 17:06:52,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@136b980c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.04 05:06:52, skipping insertion in model container [2018-04-10 17:06:52,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.04 05:06:52" (3/3) ... [2018-04-10 17:06:52,668 INFO L107 eAbstractionObserver]: Analyzing ICFG memsetNonZero3_true-valid-memsafety_true-termination.c [2018-04-10 17:06:52,676 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-04-10 17:06:52,683 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-04-10 17:06:52,715 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-10 17:06:52,715 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-10 17:06:52,715 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-10 17:06:52,715 INFO L371 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-04-10 17:06:52,715 INFO L372 AbstractCegarLoop]: Backedges is CANONICAL [2018-04-10 17:06:52,716 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-10 17:06:52,716 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-10 17:06:52,716 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-10 17:06:52,716 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-10 17:06:52,716 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-10 17:06:52,724 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-04-10 17:06:52,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-04-10 17:06:52,729 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:06:52,730 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:06:52,730 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:06:52,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1417793591, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:06:52,744 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:06:52,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:52,761 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-04-10 17:06:52,768 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-04-10 17:06:52,768 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-04-10 17:06:52,769 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-04-10 17:06:52,769 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-04-10 17:06:52,798 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |c_#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp)) is different from true [2018-04-10 17:06:52,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:52,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:52,852 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 17:06:52,853 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-10 17:06:52,853 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:06:52,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:52,854 INFO L182 omatonBuilderFactory]: Interpolants [32#(= 1 (select |#valid| |main_~#cstats~0.base|)), 33#(= 1 (select |#valid| main_~point~0.base)), 34#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 26#true, 27#false, 31#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp))] [2018-04-10 17:06:52,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:52,854 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-10 17:06:52,861 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-10 17:06:52,862 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-04-10 17:06:52,863 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 6 states. [2018-04-10 17:06:52,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:06:52,949 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-04-10 17:06:52,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-10 17:06:52,950 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2018-04-10 17:06:52,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:06:52,957 INFO L225 Difference]: With dead ends: 22 [2018-04-10 17:06:52,957 INFO L226 Difference]: Without dead ends: 19 [2018-04-10 17:06:52,958 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=28, Unknown=2, NotChecked=10, Total=56 [2018-04-10 17:06:52,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-04-10 17:06:52,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-04-10 17:06:52,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-04-10 17:06:52,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-04-10 17:06:52,982 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 8 [2018-04-10 17:06:52,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:06:52,982 INFO L459 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2018-04-10 17:06:52,984 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-10 17:06:52,984 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-04-10 17:06:52,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-04-10 17:06:52,985 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:06:52,985 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:06:52,985 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:06:52,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1417793592, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:06:52,989 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:06:52,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:52,998 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-04-10 17:06:53,000 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-04-10 17:06:53,000 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-04-10 17:06:53,001 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-04-10 17:06:53,001 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-04-10 17:06:53,007 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |c_#length| %1 80) (store %0 %1 80)) :qid itp)) :qid itp)) is different from true [2018-04-10 17:06:53,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:53,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:53,069 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 17:06:53,069 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-10 17:06:53,069 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:06:53,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:53,070 INFO L182 omatonBuilderFactory]: Interpolants [80#true, 81#false, 85#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |#length| %1 80) (store %0 %1 80)) :qid itp)) :qid itp)), 86#(and (= 80 (select |#length| |main_~#cstats~0.base|)) (= 0 |main_~#cstats~0.offset|)), 87#(and (<= 0 main_~point~0.offset) (<= (+ main_~point~0.offset 80) (select |#length| main_~point~0.base))), 88#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-04-10 17:06:53,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:53,071 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-10 17:06:53,071 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-10 17:06:53,072 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-04-10 17:06:53,072 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 6 states. [2018-04-10 17:06:53,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:06:53,116 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2018-04-10 17:06:53,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-10 17:06:53,117 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2018-04-10 17:06:53,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:06:53,117 INFO L225 Difference]: With dead ends: 18 [2018-04-10 17:06:53,117 INFO L226 Difference]: Without dead ends: 18 [2018-04-10 17:06:53,118 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=27, Unknown=3, NotChecked=10, Total=56 [2018-04-10 17:06:53,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-04-10 17:06:53,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-04-10 17:06:53,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-04-10 17:06:53,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-04-10 17:06:53,120 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 8 [2018-04-10 17:06:53,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:06:53,120 INFO L459 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2018-04-10 17:06:53,120 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-10 17:06:53,120 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2018-04-10 17:06:53,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-04-10 17:06:53,120 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:06:53,120 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:06:53,120 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:06:53,121 INFO L82 PathProgramCache]: Analyzing trace with hash 577627260, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:06:53,123 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:06:53,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:53,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:53,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:53,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:53,172 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 17:06:53,173 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-10 17:06:53,173 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:06:53,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:53,173 INFO L182 omatonBuilderFactory]: Interpolants [129#true, 130#false, 139#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 140#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 141#(<= |#Ultimate.C_memset_#amount| 0)] [2018-04-10 17:06:53,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:53,174 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-10 17:06:53,174 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-10 17:06:53,174 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-10 17:06:53,174 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 5 states. [2018-04-10 17:06:53,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:06:53,231 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2018-04-10 17:06:53,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-10 17:06:53,232 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-04-10 17:06:53,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:06:53,233 INFO L225 Difference]: With dead ends: 21 [2018-04-10 17:06:53,233 INFO L226 Difference]: Without dead ends: 19 [2018-04-10 17:06:53,233 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-04-10 17:06:53,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-04-10 17:06:53,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-04-10 17:06:53,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-04-10 17:06:53,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-04-10 17:06:53,236 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 17 [2018-04-10 17:06:53,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:06:53,236 INFO L459 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2018-04-10 17:06:53,236 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-10 17:06:53,237 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-04-10 17:06:53,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-04-10 17:06:53,237 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:06:53,237 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:06:53,237 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:06:53,238 INFO L82 PathProgramCache]: Analyzing trace with hash 113669371, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:06:53,241 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:06:53,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:53,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:53,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:53,289 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:53,313 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:06:53,313 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-04-10 17:06:53,313 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:06:53,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:53,314 INFO L182 omatonBuilderFactory]: Interpolants [197#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 198#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 199#(or (and (< |#Ultimate.C_memset_#t~loopctr5| |#Ultimate.C_memset_#amount|) (< 1 |#Ultimate.C_memset_#amount|)) (and (<= |#Ultimate.C_memset_#amount| |#Ultimate.C_memset_#t~loopctr5|) (<= |#Ultimate.C_memset_#amount| 1))), 200#(<= |#Ultimate.C_memset_#amount| 1), 186#true, 187#false] [2018-04-10 17:06:53,314 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:53,314 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-10 17:06:53,314 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-10 17:06:53,315 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-10 17:06:53,315 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 6 states. [2018-04-10 17:06:53,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:06:53,409 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-04-10 17:06:53,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-10 17:06:53,409 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2018-04-10 17:06:53,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:06:53,410 INFO L225 Difference]: With dead ends: 22 [2018-04-10 17:06:53,410 INFO L226 Difference]: Without dead ends: 20 [2018-04-10 17:06:53,410 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-04-10 17:06:53,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-04-10 17:06:53,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-04-10 17:06:53,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-04-10 17:06:53,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2018-04-10 17:06:53,413 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 18 [2018-04-10 17:06:53,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:06:53,413 INFO L459 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2018-04-10 17:06:53,413 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-10 17:06:53,413 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2018-04-10 17:06:53,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-10 17:06:53,414 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:06:53,414 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:06:53,414 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:06:53,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1384123300, now seen corresponding path program 2 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:06:53,418 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:06:53,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:53,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:53,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:53,463 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:53,480 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:06:53,481 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-04-10 17:06:53,481 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:06:53,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:53,481 INFO L182 omatonBuilderFactory]: Interpolants [261#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 262#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 263#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 264#(= 2 |#Ultimate.C_memset_#t~loopctr5|), 249#true, 265#(not (= 80 |#Ultimate.C_memset_#amount|)), 250#false] [2018-04-10 17:06:53,481 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:53,481 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-10 17:06:53,481 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-10 17:06:53,481 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-10 17:06:53,482 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 7 states. [2018-04-10 17:06:53,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:06:53,535 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2018-04-10 17:06:53,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-10 17:06:53,537 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-04-10 17:06:53,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:06:53,537 INFO L225 Difference]: With dead ends: 23 [2018-04-10 17:06:53,537 INFO L226 Difference]: Without dead ends: 21 [2018-04-10 17:06:53,538 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-04-10 17:06:53,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-04-10 17:06:53,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-04-10 17:06:53,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-04-10 17:06:53,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2018-04-10 17:06:53,540 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 19 [2018-04-10 17:06:53,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:06:53,540 INFO L459 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2018-04-10 17:06:53,540 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-10 17:06:53,540 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2018-04-10 17:06:53,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-04-10 17:06:53,541 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:06:53,541 INFO L355 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:06:53,541 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:06:53,541 INFO L82 PathProgramCache]: Analyzing trace with hash -571055845, now seen corresponding path program 3 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:06:53,543 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:06:53,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:53,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:53,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:53,575 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:53,592 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:06:53,592 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-04-10 17:06:53,592 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:06:53,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:53,593 INFO L182 omatonBuilderFactory]: Interpolants [336#(not (= 80 |#Ultimate.C_memset_#amount|)), 331#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 332#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 333#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 318#true, 334#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 319#false, 335#(<= |#Ultimate.C_memset_#t~loopctr5| 3)] [2018-04-10 17:06:53,593 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:53,593 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-10 17:06:53,593 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-10 17:06:53,593 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-04-10 17:06:53,593 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 8 states. [2018-04-10 17:06:53,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:06:53,704 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2018-04-10 17:06:53,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-10 17:06:53,704 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2018-04-10 17:06:53,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:06:53,704 INFO L225 Difference]: With dead ends: 24 [2018-04-10 17:06:53,704 INFO L226 Difference]: Without dead ends: 22 [2018-04-10 17:06:53,705 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2018-04-10 17:06:53,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-04-10 17:06:53,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-04-10 17:06:53,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-04-10 17:06:53,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-04-10 17:06:53,706 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 20 [2018-04-10 17:06:53,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:06:53,706 INFO L459 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-04-10 17:06:53,707 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-10 17:06:53,707 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-04-10 17:06:53,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-04-10 17:06:53,707 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:06:53,707 INFO L355 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:06:53,707 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:06:53,707 INFO L82 PathProgramCache]: Analyzing trace with hash -1135768516, now seen corresponding path program 4 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:06:53,709 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:06:53,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:53,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:53,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:53,744 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:53,760 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:06:53,760 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-04-10 17:06:53,761 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:06:53,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:53,761 INFO L182 omatonBuilderFactory]: Interpolants [407#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 408#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 393#true, 409#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 394#false, 410#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 411#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 412#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 413#(not (= 80 |#Ultimate.C_memset_#amount|))] [2018-04-10 17:06:53,761 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:53,761 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-10 17:06:53,761 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-10 17:06:53,761 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-04-10 17:06:53,762 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 9 states. [2018-04-10 17:06:53,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:06:53,884 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2018-04-10 17:06:53,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-10 17:06:53,884 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2018-04-10 17:06:53,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:06:53,885 INFO L225 Difference]: With dead ends: 25 [2018-04-10 17:06:53,885 INFO L226 Difference]: Without dead ends: 23 [2018-04-10 17:06:53,886 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2018-04-10 17:06:53,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-04-10 17:06:53,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-04-10 17:06:53,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-04-10 17:06:53,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2018-04-10 17:06:53,888 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 21 [2018-04-10 17:06:53,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:06:53,888 INFO L459 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2018-04-10 17:06:53,888 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-10 17:06:53,888 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2018-04-10 17:06:53,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-04-10 17:06:53,889 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:06:53,889 INFO L355 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:06:53,889 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:06:53,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1461992133, now seen corresponding path program 5 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:06:53,893 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:06:53,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:53,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:53,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:53,962 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:53,988 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:06:53,988 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-04-10 17:06:53,988 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:06:53,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:53,988 INFO L182 omatonBuilderFactory]: Interpolants [496#(not (= 80 |#Ultimate.C_memset_#amount|)), 489#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 474#true, 490#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 475#false, 491#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 492#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 493#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 494#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 495#(<= |#Ultimate.C_memset_#t~loopctr5| 5)] [2018-04-10 17:06:53,988 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:53,989 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-10 17:06:53,989 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-10 17:06:53,989 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2018-04-10 17:06:53,989 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 10 states. [2018-04-10 17:06:54,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:06:54,068 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2018-04-10 17:06:54,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-10 17:06:54,068 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2018-04-10 17:06:54,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:06:54,068 INFO L225 Difference]: With dead ends: 26 [2018-04-10 17:06:54,068 INFO L226 Difference]: Without dead ends: 24 [2018-04-10 17:06:54,069 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2018-04-10 17:06:54,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-04-10 17:06:54,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-04-10 17:06:54,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-04-10 17:06:54,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-04-10 17:06:54,071 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 22 [2018-04-10 17:06:54,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:06:54,071 INFO L459 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-04-10 17:06:54,071 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-10 17:06:54,072 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-04-10 17:06:54,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-04-10 17:06:54,072 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:06:54,072 INFO L355 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:06:54,072 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:06:54,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1309977628, now seen corresponding path program 6 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:06:54,075 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:06:54,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:54,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:54,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:54,129 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:54,146 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:06:54,146 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-04-10 17:06:54,146 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:06:54,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:54,147 INFO L182 omatonBuilderFactory]: Interpolants [561#true, 577#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 562#false, 578#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 579#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 580#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 581#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 582#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 583#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 584#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 585#(not (= 80 |#Ultimate.C_memset_#amount|))] [2018-04-10 17:06:54,147 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:54,147 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-10 17:06:54,147 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-10 17:06:54,147 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-04-10 17:06:54,147 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 11 states. [2018-04-10 17:06:54,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:06:54,238 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2018-04-10 17:06:54,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-10 17:06:54,238 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 23 [2018-04-10 17:06:54,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:06:54,239 INFO L225 Difference]: With dead ends: 27 [2018-04-10 17:06:54,239 INFO L226 Difference]: Without dead ends: 25 [2018-04-10 17:06:54,239 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2018-04-10 17:06:54,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-04-10 17:06:54,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-04-10 17:06:54,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-04-10 17:06:54,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2018-04-10 17:06:54,243 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 23 [2018-04-10 17:06:54,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:06:54,243 INFO L459 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2018-04-10 17:06:54,243 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-10 17:06:54,243 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2018-04-10 17:06:54,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-04-10 17:06:54,244 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:06:54,244 INFO L355 BasicCegarLoop]: trace histogram [7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:06:54,244 INFO L408 AbstractCegarLoop]: === Iteration 10 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:06:54,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1341694299, now seen corresponding path program 7 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:06:54,248 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:06:54,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:54,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:54,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:54,303 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:54,320 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:06:54,320 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-04-10 17:06:54,320 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:06:54,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:54,320 INFO L182 omatonBuilderFactory]: Interpolants [672#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 673#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 674#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 675#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 676#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 677#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 678#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 679#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 680#(not (= 80 |#Ultimate.C_memset_#amount|)), 654#true, 655#false, 671#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-04-10 17:06:54,320 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:54,321 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-10 17:06:54,321 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-10 17:06:54,321 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-04-10 17:06:54,321 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 12 states. [2018-04-10 17:06:54,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:06:54,435 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-04-10 17:06:54,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-10 17:06:54,436 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 24 [2018-04-10 17:06:54,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:06:54,436 INFO L225 Difference]: With dead ends: 28 [2018-04-10 17:06:54,436 INFO L226 Difference]: Without dead ends: 26 [2018-04-10 17:06:54,436 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=140, Invalid=280, Unknown=0, NotChecked=0, Total=420 [2018-04-10 17:06:54,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-04-10 17:06:54,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-04-10 17:06:54,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-04-10 17:06:54,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2018-04-10 17:06:54,438 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 24 [2018-04-10 17:06:54,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:06:54,438 INFO L459 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2018-04-10 17:06:54,438 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-10 17:06:54,438 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2018-04-10 17:06:54,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-10 17:06:54,438 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:06:54,439 INFO L355 BasicCegarLoop]: trace histogram [8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:06:54,439 INFO L408 AbstractCegarLoop]: === Iteration 11 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:06:54,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1970056196, now seen corresponding path program 8 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:06:54,441 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:06:54,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:54,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:54,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:54,504 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:54,520 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:06:54,520 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2018-04-10 17:06:54,520 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:06:54,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:54,520 INFO L182 omatonBuilderFactory]: Interpolants [771#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 772#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 773#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 774#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 775#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 776#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 777#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 778#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 779#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 780#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 781#(not (= 80 |#Ultimate.C_memset_#amount|)), 753#true, 754#false] [2018-04-10 17:06:54,520 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:54,520 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-10 17:06:54,521 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-10 17:06:54,521 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2018-04-10 17:06:54,521 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 13 states. [2018-04-10 17:06:54,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:06:54,619 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2018-04-10 17:06:54,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-10 17:06:54,619 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 25 [2018-04-10 17:06:54,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:06:54,620 INFO L225 Difference]: With dead ends: 29 [2018-04-10 17:06:54,620 INFO L226 Difference]: Without dead ends: 27 [2018-04-10 17:06:54,620 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=170, Invalid=336, Unknown=0, NotChecked=0, Total=506 [2018-04-10 17:06:54,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-04-10 17:06:54,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-04-10 17:06:54,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-04-10 17:06:54,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2018-04-10 17:06:54,622 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 25 [2018-04-10 17:06:54,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:06:54,622 INFO L459 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2018-04-10 17:06:54,622 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-10 17:06:54,622 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2018-04-10 17:06:54,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-10 17:06:54,622 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:06:54,622 INFO L355 BasicCegarLoop]: trace histogram [9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:06:54,622 INFO L408 AbstractCegarLoop]: === Iteration 12 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:06:54,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1555106437, now seen corresponding path program 9 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:06:54,625 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:06:54,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:54,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:54,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:54,719 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:54,734 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:06:54,735 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-04-10 17:06:54,735 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:06:54,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:54,735 INFO L182 omatonBuilderFactory]: Interpolants [877#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 878#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 879#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 880#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 881#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 882#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 883#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 884#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 885#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 886#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 887#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 888#(not (= 80 |#Ultimate.C_memset_#amount|)), 858#true, 859#false] [2018-04-10 17:06:54,735 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:54,735 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-04-10 17:06:54,735 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-04-10 17:06:54,736 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=113, Unknown=0, NotChecked=0, Total=182 [2018-04-10 17:06:54,736 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 14 states. [2018-04-10 17:06:54,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:06:54,842 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2018-04-10 17:06:54,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-10 17:06:54,842 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 26 [2018-04-10 17:06:54,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:06:54,842 INFO L225 Difference]: With dead ends: 30 [2018-04-10 17:06:54,842 INFO L226 Difference]: Without dead ends: 28 [2018-04-10 17:06:54,843 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=203, Invalid=397, Unknown=0, NotChecked=0, Total=600 [2018-04-10 17:06:54,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-04-10 17:06:54,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-04-10 17:06:54,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-04-10 17:06:54,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2018-04-10 17:06:54,844 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 26 [2018-04-10 17:06:54,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:06:54,845 INFO L459 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2018-04-10 17:06:54,845 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-04-10 17:06:54,845 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2018-04-10 17:06:54,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-04-10 17:06:54,845 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:06:54,845 INFO L355 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:06:54,845 INFO L408 AbstractCegarLoop]: === Iteration 13 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:06:54,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1576565796, now seen corresponding path program 10 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:06:54,848 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:06:54,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:54,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:54,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:54,908 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:54,933 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:06:54,933 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-04-10 17:06:54,933 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:06:54,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:54,934 INFO L182 omatonBuilderFactory]: Interpolants [992#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 993#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 994#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 995#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 996#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 997#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 998#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 999#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 1000#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 969#true, 1001#(not (= 80 |#Ultimate.C_memset_#amount|)), 970#false, 989#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 990#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 991#(= 1 |#Ultimate.C_memset_#t~loopctr5|)] [2018-04-10 17:06:54,934 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:54,934 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-10 17:06:54,934 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-10 17:06:54,934 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=129, Unknown=0, NotChecked=0, Total=210 [2018-04-10 17:06:54,935 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 15 states. [2018-04-10 17:06:55,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:06:55,053 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2018-04-10 17:06:55,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-10 17:06:55,053 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 27 [2018-04-10 17:06:55,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:06:55,054 INFO L225 Difference]: With dead ends: 31 [2018-04-10 17:06:55,054 INFO L226 Difference]: Without dead ends: 29 [2018-04-10 17:06:55,054 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=239, Invalid=463, Unknown=0, NotChecked=0, Total=702 [2018-04-10 17:06:55,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-04-10 17:06:55,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-04-10 17:06:55,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-04-10 17:06:55,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2018-04-10 17:06:55,056 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 27 [2018-04-10 17:06:55,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:06:55,056 INFO L459 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2018-04-10 17:06:55,056 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-10 17:06:55,056 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2018-04-10 17:06:55,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-04-10 17:06:55,056 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:06:55,056 INFO L355 BasicCegarLoop]: trace histogram [11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:06:55,056 INFO L408 AbstractCegarLoop]: === Iteration 14 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:06:55,056 INFO L82 PathProgramCache]: Analyzing trace with hash 2053161371, now seen corresponding path program 11 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:06:55,059 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:06:55,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:55,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:55,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:55,154 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:55,172 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:06:55,172 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-04-10 17:06:55,173 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:06:55,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:55,173 INFO L182 omatonBuilderFactory]: Interpolants [1120#(not (= 80 |#Ultimate.C_memset_#amount|)), 1107#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 1108#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 1109#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 1110#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 1111#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 1112#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 1113#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 1114#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 1115#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 1116#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 1117#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 1086#true, 1118#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 1087#false, 1119#(<= |#Ultimate.C_memset_#t~loopctr5| 11)] [2018-04-10 17:06:55,173 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:55,173 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-10 17:06:55,173 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-10 17:06:55,173 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2018-04-10 17:06:55,174 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand 16 states. [2018-04-10 17:06:55,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:06:55,329 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2018-04-10 17:06:55,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-04-10 17:06:55,330 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 28 [2018-04-10 17:06:55,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:06:55,330 INFO L225 Difference]: With dead ends: 32 [2018-04-10 17:06:55,330 INFO L226 Difference]: Without dead ends: 30 [2018-04-10 17:06:55,331 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=278, Invalid=534, Unknown=0, NotChecked=0, Total=812 [2018-04-10 17:06:55,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-04-10 17:06:55,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-04-10 17:06:55,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-04-10 17:06:55,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2018-04-10 17:06:55,333 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 28 [2018-04-10 17:06:55,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:06:55,333 INFO L459 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2018-04-10 17:06:55,333 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-10 17:06:55,333 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2018-04-10 17:06:55,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-04-10 17:06:55,334 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:06:55,334 INFO L355 BasicCegarLoop]: trace histogram [12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:06:55,334 INFO L408 AbstractCegarLoop]: === Iteration 15 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:06:55,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1389413444, now seen corresponding path program 12 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:06:55,338 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:06:55,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:55,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:55,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:55,411 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:55,431 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:06:55,431 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-04-10 17:06:55,431 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:06:55,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:55,431 INFO L182 omatonBuilderFactory]: Interpolants [1231#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 1232#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 1233#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 1234#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 1235#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 1236#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 1237#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 1238#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 1239#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 1240#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 1209#true, 1241#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 1210#false, 1242#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 1243#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 1244#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 1245#(not (= 80 |#Ultimate.C_memset_#amount|))] [2018-04-10 17:06:55,431 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:55,432 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-10 17:06:55,432 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-10 17:06:55,432 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=164, Unknown=0, NotChecked=0, Total=272 [2018-04-10 17:06:55,432 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand 17 states. [2018-04-10 17:06:55,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:06:55,576 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2018-04-10 17:06:55,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-10 17:06:55,576 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 29 [2018-04-10 17:06:55,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:06:55,576 INFO L225 Difference]: With dead ends: 33 [2018-04-10 17:06:55,577 INFO L226 Difference]: Without dead ends: 31 [2018-04-10 17:06:55,577 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=320, Invalid=610, Unknown=0, NotChecked=0, Total=930 [2018-04-10 17:06:55,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-04-10 17:06:55,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-04-10 17:06:55,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-04-10 17:06:55,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2018-04-10 17:06:55,579 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 29 [2018-04-10 17:06:55,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:06:55,580 INFO L459 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2018-04-10 17:06:55,580 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-10 17:06:55,580 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2018-04-10 17:06:55,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-04-10 17:06:55,580 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:06:55,580 INFO L355 BasicCegarLoop]: trace histogram [13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:06:55,580 INFO L408 AbstractCegarLoop]: === Iteration 16 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:06:55,581 INFO L82 PathProgramCache]: Analyzing trace with hash -735050309, now seen corresponding path program 13 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:06:55,587 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:06:55,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:55,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:55,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:55,671 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:55,688 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:06:55,688 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-04-10 17:06:55,688 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:06:55,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:55,688 INFO L182 omatonBuilderFactory]: Interpolants [1376#(not (= 80 |#Ultimate.C_memset_#amount|)), 1361#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 1362#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 1363#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 1364#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 1365#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 1366#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 1367#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 1368#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 1369#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 1338#true, 1370#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 1339#false, 1371#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 1372#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 1373#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 1374#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 1375#(<= |#Ultimate.C_memset_#t~loopctr5| 13)] [2018-04-10 17:06:55,689 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:55,689 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-10 17:06:55,689 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-10 17:06:55,689 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=183, Unknown=0, NotChecked=0, Total=306 [2018-04-10 17:06:55,690 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 18 states. [2018-04-10 17:06:55,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:06:55,837 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2018-04-10 17:06:55,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-10 17:06:55,838 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 30 [2018-04-10 17:06:55,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:06:55,838 INFO L225 Difference]: With dead ends: 34 [2018-04-10 17:06:55,838 INFO L226 Difference]: Without dead ends: 32 [2018-04-10 17:06:55,838 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=365, Invalid=691, Unknown=0, NotChecked=0, Total=1056 [2018-04-10 17:06:55,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-04-10 17:06:55,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-04-10 17:06:55,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-04-10 17:06:55,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2018-04-10 17:06:55,842 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 30 [2018-04-10 17:06:55,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:06:55,843 INFO L459 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2018-04-10 17:06:55,843 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-10 17:06:55,843 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2018-04-10 17:06:55,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-04-10 17:06:55,843 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:06:55,843 INFO L355 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:06:55,843 INFO L408 AbstractCegarLoop]: === Iteration 17 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:06:55,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1924629604, now seen corresponding path program 14 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:06:55,847 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:06:55,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:55,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:55,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:55,939 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:55,956 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:06:55,956 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-04-10 17:06:55,956 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:06:55,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:55,957 INFO L182 omatonBuilderFactory]: Interpolants [1504#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 1473#true, 1505#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 1474#false, 1506#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 1507#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 1508#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 1509#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 1510#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 1511#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 1512#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 1513#(not (= 80 |#Ultimate.C_memset_#amount|)), 1497#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 1498#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 1499#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 1500#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 1501#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 1502#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 1503#(<= |#Ultimate.C_memset_#t~loopctr5| 5)] [2018-04-10 17:06:55,957 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:55,957 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-04-10 17:06:55,957 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-04-10 17:06:55,957 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=203, Unknown=0, NotChecked=0, Total=342 [2018-04-10 17:06:55,957 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 19 states. [2018-04-10 17:06:56,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:06:56,113 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2018-04-10 17:06:56,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-04-10 17:06:56,113 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 31 [2018-04-10 17:06:56,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:06:56,114 INFO L225 Difference]: With dead ends: 35 [2018-04-10 17:06:56,114 INFO L226 Difference]: Without dead ends: 33 [2018-04-10 17:06:56,114 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=413, Invalid=777, Unknown=0, NotChecked=0, Total=1190 [2018-04-10 17:06:56,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-04-10 17:06:56,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-04-10 17:06:56,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-04-10 17:06:56,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2018-04-10 17:06:56,116 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 31 [2018-04-10 17:06:56,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:06:56,116 INFO L459 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2018-04-10 17:06:56,116 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-04-10 17:06:56,116 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2018-04-10 17:06:56,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-04-10 17:06:56,117 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:06:56,117 INFO L355 BasicCegarLoop]: trace histogram [15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:06:56,117 INFO L408 AbstractCegarLoop]: === Iteration 18 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:06:56,117 INFO L82 PathProgramCache]: Analyzing trace with hash -146882085, now seen corresponding path program 15 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:06:56,119 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:06:56,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:56,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:56,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:56,212 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:56,228 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:06:56,228 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-04-10 17:06:56,228 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:06:56,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:56,229 INFO L182 omatonBuilderFactory]: Interpolants [1639#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 1640#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 1641#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 1642#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 1643#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 1644#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 1645#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 1614#true, 1646#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 1615#false, 1647#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 1648#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 1649#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 1650#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 1651#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 1652#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 1653#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 1654#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 1655#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 1656#(not (= 80 |#Ultimate.C_memset_#amount|))] [2018-04-10 17:06:56,229 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:56,229 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-10 17:06:56,229 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-10 17:06:56,229 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=224, Unknown=0, NotChecked=0, Total=380 [2018-04-10 17:06:56,229 INFO L87 Difference]: Start difference. First operand 33 states and 33 transitions. Second operand 20 states. [2018-04-10 17:06:56,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:06:56,402 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2018-04-10 17:06:56,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-10 17:06:56,402 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 32 [2018-04-10 17:06:56,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:06:56,402 INFO L225 Difference]: With dead ends: 36 [2018-04-10 17:06:56,402 INFO L226 Difference]: Without dead ends: 34 [2018-04-10 17:06:56,403 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=464, Invalid=868, Unknown=0, NotChecked=0, Total=1332 [2018-04-10 17:06:56,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-04-10 17:06:56,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-04-10 17:06:56,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-04-10 17:06:56,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2018-04-10 17:06:56,404 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 32 [2018-04-10 17:06:56,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:06:56,404 INFO L459 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2018-04-10 17:06:56,404 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-10 17:06:56,404 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2018-04-10 17:06:56,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-04-10 17:06:56,405 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:06:56,405 INFO L355 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:06:56,405 INFO L408 AbstractCegarLoop]: === Iteration 19 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:06:56,405 INFO L82 PathProgramCache]: Analyzing trace with hash -871283844, now seen corresponding path program 16 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:06:56,407 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:06:56,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:56,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:56,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:56,517 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:56,543 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:06:56,543 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-04-10 17:06:56,543 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:06:56,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:56,544 INFO L182 omatonBuilderFactory]: Interpolants [1792#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 1761#true, 1793#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 1762#false, 1794#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 1795#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 1796#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 1797#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 1798#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 1799#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 1800#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 1801#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 1802#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 1803#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 1804#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 1805#(not (= 80 |#Ultimate.C_memset_#amount|)), 1787#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 1788#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 1789#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 1790#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 1791#(<= |#Ultimate.C_memset_#t~loopctr5| 3)] [2018-04-10 17:06:56,544 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:56,544 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-10 17:06:56,544 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-10 17:06:56,544 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=246, Unknown=0, NotChecked=0, Total=420 [2018-04-10 17:06:56,544 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 21 states. [2018-04-10 17:06:56,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:06:56,742 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-04-10 17:06:56,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-10 17:06:56,744 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 33 [2018-04-10 17:06:56,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:06:56,744 INFO L225 Difference]: With dead ends: 37 [2018-04-10 17:06:56,744 INFO L226 Difference]: Without dead ends: 35 [2018-04-10 17:06:56,745 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=518, Invalid=964, Unknown=0, NotChecked=0, Total=1482 [2018-04-10 17:06:56,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-04-10 17:06:56,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-04-10 17:06:56,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-04-10 17:06:56,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2018-04-10 17:06:56,746 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 33 [2018-04-10 17:06:56,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:06:56,746 INFO L459 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2018-04-10 17:06:56,747 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-10 17:06:56,747 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2018-04-10 17:06:56,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-04-10 17:06:56,747 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:06:56,747 INFO L355 BasicCegarLoop]: trace histogram [17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:06:56,747 INFO L408 AbstractCegarLoop]: === Iteration 20 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:06:56,747 INFO L82 PathProgramCache]: Analyzing trace with hash -1852901893, now seen corresponding path program 17 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:06:56,750 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:06:56,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:56,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:56,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:56,893 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:56,909 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:06:56,909 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-04-10 17:06:56,909 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:06:56,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:56,909 INFO L182 omatonBuilderFactory]: Interpolants [1952#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 1953#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 1954#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 1955#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 1956#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 1957#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 1958#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 1959#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 1960#(not (= 80 |#Ultimate.C_memset_#amount|)), 1941#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 1942#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 1943#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 1944#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 1945#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 1914#true, 1946#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 1915#false, 1947#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 1948#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 1949#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 1950#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 1951#(<= |#Ultimate.C_memset_#t~loopctr5| 9)] [2018-04-10 17:06:56,909 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:56,910 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-10 17:06:56,910 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-10 17:06:56,910 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=269, Unknown=0, NotChecked=0, Total=462 [2018-04-10 17:06:56,910 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand 22 states. [2018-04-10 17:06:57,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:06:57,098 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2018-04-10 17:06:57,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-04-10 17:06:57,098 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 34 [2018-04-10 17:06:57,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:06:57,099 INFO L225 Difference]: With dead ends: 38 [2018-04-10 17:06:57,099 INFO L226 Difference]: Without dead ends: 36 [2018-04-10 17:06:57,099 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=575, Invalid=1065, Unknown=0, NotChecked=0, Total=1640 [2018-04-10 17:06:57,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-04-10 17:06:57,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-04-10 17:06:57,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-04-10 17:06:57,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2018-04-10 17:06:57,101 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 34 [2018-04-10 17:06:57,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:06:57,101 INFO L459 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2018-04-10 17:06:57,101 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-10 17:06:57,101 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2018-04-10 17:06:57,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-04-10 17:06:57,102 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:06:57,102 INFO L355 BasicCegarLoop]: trace histogram [18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:06:57,102 INFO L408 AbstractCegarLoop]: === Iteration 21 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:06:57,102 INFO L82 PathProgramCache]: Analyzing trace with hash 2076676956, now seen corresponding path program 18 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:06:57,105 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:06:57,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:57,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:57,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:57,232 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:57,258 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:06:57,259 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-04-10 17:06:57,259 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:06:57,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:57,259 INFO L182 omatonBuilderFactory]: Interpolants [2112#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 2113#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 2114#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 2115#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 2116#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 2117#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 2118#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 2119#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 2120#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 2121#(not (= 80 |#Ultimate.C_memset_#amount|)), 2101#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 2102#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 2103#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 2104#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 2073#true, 2105#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 2074#false, 2106#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 2107#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 2108#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 2109#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 2110#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 2111#(<= |#Ultimate.C_memset_#t~loopctr5| 9)] [2018-04-10 17:06:57,259 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:57,259 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-10 17:06:57,259 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-10 17:06:57,260 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=293, Unknown=0, NotChecked=0, Total=506 [2018-04-10 17:06:57,260 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand 23 states. [2018-04-10 17:06:57,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:06:57,567 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2018-04-10 17:06:57,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-04-10 17:06:57,567 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 35 [2018-04-10 17:06:57,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:06:57,568 INFO L225 Difference]: With dead ends: 39 [2018-04-10 17:06:57,568 INFO L226 Difference]: Without dead ends: 37 [2018-04-10 17:06:57,568 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=635, Invalid=1171, Unknown=0, NotChecked=0, Total=1806 [2018-04-10 17:06:57,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-04-10 17:06:57,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-04-10 17:06:57,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-04-10 17:06:57,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2018-04-10 17:06:57,570 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 35 [2018-04-10 17:06:57,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:06:57,570 INFO L459 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2018-04-10 17:06:57,570 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-10 17:06:57,570 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2018-04-10 17:06:57,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-04-10 17:06:57,570 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:06:57,570 INFO L355 BasicCegarLoop]: trace histogram [19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:06:57,570 INFO L408 AbstractCegarLoop]: === Iteration 22 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:06:57,570 INFO L82 PathProgramCache]: Analyzing trace with hash -660430309, now seen corresponding path program 19 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:06:57,573 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:06:57,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:57,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:57,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:57,760 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:57,788 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:06:57,789 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-04-10 17:06:57,789 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:06:57,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:57,789 INFO L182 omatonBuilderFactory]: Interpolants [2272#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 2273#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 2274#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 2275#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 2276#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 2277#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 2278#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 2279#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 2280#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 2281#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 2282#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 2283#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 2284#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 2285#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 2286#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 2287#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 2288#(not (= 80 |#Ultimate.C_memset_#amount|)), 2267#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 2268#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 2269#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 2238#true, 2270#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 2239#false, 2271#(<= |#Ultimate.C_memset_#t~loopctr5| 3)] [2018-04-10 17:06:57,790 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:57,790 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-10 17:06:57,790 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-10 17:06:57,790 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=318, Unknown=0, NotChecked=0, Total=552 [2018-04-10 17:06:57,790 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand 24 states. [2018-04-10 17:06:58,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:06:58,085 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions. [2018-04-10 17:06:58,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-04-10 17:06:58,086 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 36 [2018-04-10 17:06:58,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:06:58,087 INFO L225 Difference]: With dead ends: 40 [2018-04-10 17:06:58,087 INFO L226 Difference]: Without dead ends: 38 [2018-04-10 17:06:58,087 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=698, Invalid=1282, Unknown=0, NotChecked=0, Total=1980 [2018-04-10 17:06:58,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-04-10 17:06:58,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-04-10 17:06:58,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-04-10 17:06:58,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 38 transitions. [2018-04-10 17:06:58,088 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 38 transitions. Word has length 36 [2018-04-10 17:06:58,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:06:58,088 INFO L459 AbstractCegarLoop]: Abstraction has 38 states and 38 transitions. [2018-04-10 17:06:58,089 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-10 17:06:58,089 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions. [2018-04-10 17:06:58,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-04-10 17:06:58,089 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:06:58,089 INFO L355 BasicCegarLoop]: trace histogram [20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:06:58,089 INFO L408 AbstractCegarLoop]: === Iteration 23 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:06:58,089 INFO L82 PathProgramCache]: Analyzing trace with hash 388590396, now seen corresponding path program 20 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:06:58,091 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:06:58,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:58,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:58,241 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:58,258 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:06:58,258 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-04-10 17:06:58,258 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:06:58,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:58,258 INFO L182 omatonBuilderFactory]: Interpolants [2439#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 2440#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 2441#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 2442#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 2443#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 2444#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 2445#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 2446#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 2447#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 2448#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 2449#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 2450#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 2451#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 2452#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 2453#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 2454#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 2455#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 2456#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 2457#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 2458#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 2459#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 2460#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 2461#(not (= 80 |#Ultimate.C_memset_#amount|)), 2409#true, 2410#false] [2018-04-10 17:06:58,258 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:58,259 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-10 17:06:58,259 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-10 17:06:58,259 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=344, Unknown=0, NotChecked=0, Total=600 [2018-04-10 17:06:58,259 INFO L87 Difference]: Start difference. First operand 38 states and 38 transitions. Second operand 25 states. [2018-04-10 17:06:58,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:06:58,523 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2018-04-10 17:06:58,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-04-10 17:06:58,524 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 37 [2018-04-10 17:06:58,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:06:58,524 INFO L225 Difference]: With dead ends: 41 [2018-04-10 17:06:58,524 INFO L226 Difference]: Without dead ends: 39 [2018-04-10 17:06:58,524 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=764, Invalid=1398, Unknown=0, NotChecked=0, Total=2162 [2018-04-10 17:06:58,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-04-10 17:06:58,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-04-10 17:06:58,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-04-10 17:06:58,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 39 transitions. [2018-04-10 17:06:58,526 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 39 transitions. Word has length 37 [2018-04-10 17:06:58,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:06:58,526 INFO L459 AbstractCegarLoop]: Abstraction has 39 states and 39 transitions. [2018-04-10 17:06:58,526 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-10 17:06:58,527 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 39 transitions. [2018-04-10 17:06:58,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-04-10 17:06:58,527 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:06:58,527 INFO L355 BasicCegarLoop]: trace histogram [21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:06:58,527 INFO L408 AbstractCegarLoop]: === Iteration 24 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:06:58,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1451506117, now seen corresponding path program 21 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:06:58,531 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:06:58,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:58,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:58,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:58,689 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:58,705 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:06:58,705 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-10 17:06:58,706 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:06:58,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:58,706 INFO L182 omatonBuilderFactory]: Interpolants [2624#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 2625#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 2626#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 2627#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 2628#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 2629#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 2630#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 2631#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 2632#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 2633#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 2634#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 2635#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 2636#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 2637#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 2638#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 2639#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 2640#(not (= 80 |#Ultimate.C_memset_#amount|)), 2586#true, 2587#false, 2617#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 2618#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 2619#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 2620#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 2621#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 2622#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 2623#(<= |#Ultimate.C_memset_#t~loopctr5| 5)] [2018-04-10 17:06:58,706 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:58,706 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-10 17:06:58,706 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-10 17:06:58,706 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=371, Unknown=0, NotChecked=0, Total=650 [2018-04-10 17:06:58,707 INFO L87 Difference]: Start difference. First operand 39 states and 39 transitions. Second operand 26 states. [2018-04-10 17:06:58,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:06:58,981 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2018-04-10 17:06:58,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-04-10 17:06:58,981 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 38 [2018-04-10 17:06:58,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:06:58,981 INFO L225 Difference]: With dead ends: 42 [2018-04-10 17:06:58,981 INFO L226 Difference]: Without dead ends: 40 [2018-04-10 17:06:58,982 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=833, Invalid=1519, Unknown=0, NotChecked=0, Total=2352 [2018-04-10 17:06:58,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-04-10 17:06:58,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-04-10 17:06:58,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-04-10 17:06:58,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2018-04-10 17:06:58,984 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 38 [2018-04-10 17:06:58,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:06:58,984 INFO L459 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2018-04-10 17:06:58,984 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-10 17:06:58,985 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2018-04-10 17:06:58,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-04-10 17:06:58,985 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:06:58,985 INFO L355 BasicCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:06:58,985 INFO L408 AbstractCegarLoop]: === Iteration 25 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:06:58,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1635044124, now seen corresponding path program 22 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:06:58,992 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:06:58,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:59,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:59,176 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:59,193 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:06:59,193 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-10 17:06:59,193 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:06:59,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:59,194 INFO L182 omatonBuilderFactory]: Interpolants [2816#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 2817#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 2818#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 2819#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 2820#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 2821#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 2822#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 2823#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 2824#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 2825#(not (= 80 |#Ultimate.C_memset_#amount|)), 2769#true, 2770#false, 2801#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 2802#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 2803#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 2804#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 2805#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 2806#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 2807#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 2808#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 2809#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 2810#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 2811#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 2812#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 2813#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 2814#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 2815#(<= |#Ultimate.C_memset_#t~loopctr5| 13)] [2018-04-10 17:06:59,194 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:59,194 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-10 17:06:59,194 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-10 17:06:59,194 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=303, Invalid=399, Unknown=0, NotChecked=0, Total=702 [2018-04-10 17:06:59,194 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand 27 states. [2018-04-10 17:06:59,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:06:59,476 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2018-04-10 17:06:59,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-04-10 17:06:59,476 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 39 [2018-04-10 17:06:59,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:06:59,476 INFO L225 Difference]: With dead ends: 43 [2018-04-10 17:06:59,477 INFO L226 Difference]: Without dead ends: 41 [2018-04-10 17:06:59,477 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=905, Invalid=1645, Unknown=0, NotChecked=0, Total=2550 [2018-04-10 17:06:59,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-04-10 17:06:59,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-04-10 17:06:59,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-04-10 17:06:59,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2018-04-10 17:06:59,479 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 39 [2018-04-10 17:06:59,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:06:59,479 INFO L459 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2018-04-10 17:06:59,479 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-10 17:06:59,479 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2018-04-10 17:06:59,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-04-10 17:06:59,479 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:06:59,479 INFO L355 BasicCegarLoop]: trace histogram [23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:06:59,479 INFO L408 AbstractCegarLoop]: === Iteration 26 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:06:59,479 INFO L82 PathProgramCache]: Analyzing trace with hash -1466146213, now seen corresponding path program 23 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:06:59,482 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:06:59,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:59,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:59,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:06:59,677 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:59,694 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:06:59,694 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-04-10 17:06:59,694 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:06:59,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:59,695 INFO L182 omatonBuilderFactory]: Interpolants [3008#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 3009#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 3010#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 3011#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 3012#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 3013#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 3014#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 3015#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 3016#(not (= 80 |#Ultimate.C_memset_#amount|)), 2958#true, 2959#false, 2991#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 2992#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 2993#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 2994#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 2995#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 2996#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 2997#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 2998#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 2999#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 3000#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 3001#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 3002#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 3003#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 3004#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 3005#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 3006#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 3007#(<= |#Ultimate.C_memset_#t~loopctr5| 15)] [2018-04-10 17:06:59,695 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:06:59,695 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-10 17:06:59,695 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-10 17:06:59,695 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=328, Invalid=428, Unknown=0, NotChecked=0, Total=756 [2018-04-10 17:06:59,695 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand 28 states. [2018-04-10 17:06:59,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:06:59,997 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2018-04-10 17:06:59,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-04-10 17:06:59,997 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 40 [2018-04-10 17:06:59,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:06:59,998 INFO L225 Difference]: With dead ends: 44 [2018-04-10 17:06:59,998 INFO L226 Difference]: Without dead ends: 42 [2018-04-10 17:06:59,998 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=980, Invalid=1776, Unknown=0, NotChecked=0, Total=2756 [2018-04-10 17:06:59,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-04-10 17:06:59,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-04-10 17:06:59,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-04-10 17:06:59,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2018-04-10 17:06:59,999 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 40 [2018-04-10 17:07:00,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:00,000 INFO L459 AbstractCegarLoop]: Abstraction has 42 states and 42 transitions. [2018-04-10 17:07:00,000 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-10 17:07:00,000 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions. [2018-04-10 17:07:00,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-04-10 17:07:00,000 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:00,000 INFO L355 BasicCegarLoop]: trace histogram [24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:00,000 INFO L408 AbstractCegarLoop]: === Iteration 27 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:00,000 INFO L82 PathProgramCache]: Analyzing trace with hash 1181201148, now seen corresponding path program 24 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:00,004 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:00,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:00,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:00,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:00,185 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:00,201 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:00,201 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-04-10 17:07:00,201 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:00,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:00,201 INFO L182 omatonBuilderFactory]: Interpolants [3200#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 3201#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 3202#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 3203#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 3204#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 3205#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 3206#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 3207#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 3208#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 3209#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 3210#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 3211#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 3212#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 3213#(not (= 80 |#Ultimate.C_memset_#amount|)), 3153#true, 3154#false, 3187#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 3188#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 3189#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 3190#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 3191#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 3192#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 3193#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 3194#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 3195#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 3196#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 3197#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 3198#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 3199#(<= |#Ultimate.C_memset_#t~loopctr5| 11)] [2018-04-10 17:07:00,202 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:00,202 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-04-10 17:07:00,202 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-04-10 17:07:00,202 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=354, Invalid=458, Unknown=0, NotChecked=0, Total=812 [2018-04-10 17:07:00,202 INFO L87 Difference]: Start difference. First operand 42 states and 42 transitions. Second operand 29 states. [2018-04-10 17:07:00,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:00,503 INFO L93 Difference]: Finished difference Result 45 states and 45 transitions. [2018-04-10 17:07:00,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-04-10 17:07:00,503 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 41 [2018-04-10 17:07:00,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:00,503 INFO L225 Difference]: With dead ends: 45 [2018-04-10 17:07:00,503 INFO L226 Difference]: Without dead ends: 43 [2018-04-10 17:07:00,504 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=1058, Invalid=1912, Unknown=0, NotChecked=0, Total=2970 [2018-04-10 17:07:00,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-04-10 17:07:00,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-04-10 17:07:00,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-04-10 17:07:00,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2018-04-10 17:07:00,505 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 43 transitions. Word has length 41 [2018-04-10 17:07:00,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:00,505 INFO L459 AbstractCegarLoop]: Abstraction has 43 states and 43 transitions. [2018-04-10 17:07:00,505 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-04-10 17:07:00,505 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2018-04-10 17:07:00,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-04-10 17:07:00,506 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:00,506 INFO L355 BasicCegarLoop]: trace histogram [25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:00,506 INFO L408 AbstractCegarLoop]: === Iteration 28 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:00,506 INFO L82 PathProgramCache]: Analyzing trace with hash 1644590715, now seen corresponding path program 25 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:00,508 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:00,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:00,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:00,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:00,703 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:00,719 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:00,719 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-04-10 17:07:00,720 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:00,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:00,720 INFO L182 omatonBuilderFactory]: Interpolants [3392#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 3393#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 3394#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 3395#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 3396#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 3397#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 3398#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 3399#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 3400#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 3401#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 3402#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 3403#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 3404#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 3405#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 3406#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 3407#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 3408#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 3409#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 3410#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 3411#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 3412#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 3413#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 3414#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 3415#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 3416#(not (= 80 |#Ultimate.C_memset_#amount|)), 3354#true, 3355#false, 3389#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 3390#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 3391#(= 1 |#Ultimate.C_memset_#t~loopctr5|)] [2018-04-10 17:07:00,720 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:00,720 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-04-10 17:07:00,720 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-04-10 17:07:00,721 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=381, Invalid=489, Unknown=0, NotChecked=0, Total=870 [2018-04-10 17:07:00,721 INFO L87 Difference]: Start difference. First operand 43 states and 43 transitions. Second operand 30 states. [2018-04-10 17:07:01,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:01,061 INFO L93 Difference]: Finished difference Result 46 states and 46 transitions. [2018-04-10 17:07:01,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-04-10 17:07:01,061 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 42 [2018-04-10 17:07:01,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:01,061 INFO L225 Difference]: With dead ends: 46 [2018-04-10 17:07:01,061 INFO L226 Difference]: Without dead ends: 44 [2018-04-10 17:07:01,062 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=1139, Invalid=2053, Unknown=0, NotChecked=0, Total=3192 [2018-04-10 17:07:01,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-04-10 17:07:01,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-04-10 17:07:01,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-04-10 17:07:01,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2018-04-10 17:07:01,063 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 42 [2018-04-10 17:07:01,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:01,063 INFO L459 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions. [2018-04-10 17:07:01,063 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-04-10 17:07:01,063 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2018-04-10 17:07:01,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-04-10 17:07:01,063 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:01,064 INFO L355 BasicCegarLoop]: trace histogram [26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:01,064 INFO L408 AbstractCegarLoop]: === Iteration 29 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:01,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1170201892, now seen corresponding path program 26 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:01,066 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:01,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:01,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:01,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:01,318 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:01,338 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:01,338 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2018-04-10 17:07:01,338 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:01,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:01,339 INFO L182 omatonBuilderFactory]: Interpolants [3597#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 3598#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 3599#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 3600#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 3601#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 3602#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 3603#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 3604#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 3605#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 3606#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 3607#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 3608#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 3609#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 3610#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 3611#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 3612#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 3613#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 3614#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 3615#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 3616#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 3617#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 3618#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 3619#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 3620#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 3621#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 3622#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 3623#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 3624#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 3561#true, 3625#(not (= 80 |#Ultimate.C_memset_#amount|)), 3562#false] [2018-04-10 17:07:01,339 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:01,339 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-04-10 17:07:01,339 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-04-10 17:07:01,340 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=409, Invalid=521, Unknown=0, NotChecked=0, Total=930 [2018-04-10 17:07:01,340 INFO L87 Difference]: Start difference. First operand 44 states and 44 transitions. Second operand 31 states. [2018-04-10 17:07:02,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:02,005 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2018-04-10 17:07:02,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-04-10 17:07:02,006 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 43 [2018-04-10 17:07:02,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:02,006 INFO L225 Difference]: With dead ends: 47 [2018-04-10 17:07:02,006 INFO L226 Difference]: Without dead ends: 45 [2018-04-10 17:07:02,007 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1223, Invalid=2199, Unknown=0, NotChecked=0, Total=3422 [2018-04-10 17:07:02,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-04-10 17:07:02,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-04-10 17:07:02,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-04-10 17:07:02,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2018-04-10 17:07:02,008 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 43 [2018-04-10 17:07:02,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:02,008 INFO L459 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2018-04-10 17:07:02,008 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-04-10 17:07:02,008 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2018-04-10 17:07:02,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-04-10 17:07:02,008 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:02,008 INFO L355 BasicCegarLoop]: trace histogram [27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:02,008 INFO L408 AbstractCegarLoop]: === Iteration 30 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:02,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1765540507, now seen corresponding path program 27 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:02,012 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:02,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:02,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:02,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:02,240 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:02,265 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:02,265 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2018-04-10 17:07:02,265 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:02,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:02,265 INFO L182 omatonBuilderFactory]: Interpolants [3840#(not (= 80 |#Ultimate.C_memset_#amount|)), 3811#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 3812#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 3813#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 3814#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 3815#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 3816#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 3817#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 3818#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 3819#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 3820#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 3821#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 3822#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 3823#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 3824#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 3825#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 3826#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 3827#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 3828#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 3829#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 3830#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 3831#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 3832#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 3833#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 3834#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 3835#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 3836#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 3837#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 3774#true, 3838#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 3775#false, 3839#(<= |#Ultimate.C_memset_#t~loopctr5| 27)] [2018-04-10 17:07:02,265 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:02,265 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-04-10 17:07:02,266 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-04-10 17:07:02,266 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=438, Invalid=554, Unknown=0, NotChecked=0, Total=992 [2018-04-10 17:07:02,266 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand 32 states. [2018-04-10 17:07:02,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:02,664 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions. [2018-04-10 17:07:02,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-04-10 17:07:02,664 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 44 [2018-04-10 17:07:02,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:02,665 INFO L225 Difference]: With dead ends: 48 [2018-04-10 17:07:02,665 INFO L226 Difference]: Without dead ends: 46 [2018-04-10 17:07:02,666 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=1310, Invalid=2350, Unknown=0, NotChecked=0, Total=3660 [2018-04-10 17:07:02,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-04-10 17:07:02,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-04-10 17:07:02,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-04-10 17:07:02,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2018-04-10 17:07:02,667 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 44 [2018-04-10 17:07:02,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:02,668 INFO L459 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2018-04-10 17:07:02,668 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-04-10 17:07:02,668 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2018-04-10 17:07:02,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-04-10 17:07:02,668 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:02,668 INFO L355 BasicCegarLoop]: trace histogram [28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:02,668 INFO L408 AbstractCegarLoop]: === Iteration 31 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:02,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1715725636, now seen corresponding path program 28 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:02,670 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:02,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:02,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:02,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:02,922 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:02,938 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:02,938 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2018-04-10 17:07:02,938 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:02,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:02,939 INFO L182 omatonBuilderFactory]: Interpolants [4032#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 4033#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 4034#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 4035#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 4036#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 4037#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 4038#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 4039#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 4040#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 4041#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 4042#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 4043#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 4044#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 4045#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 4046#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 4047#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 4048#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 4049#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 4050#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 4051#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 4052#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 4053#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 4054#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 4055#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 4056#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 3993#true, 4057#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 3994#false, 4058#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 4059#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 4060#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 4061#(not (= 80 |#Ultimate.C_memset_#amount|)), 4031#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-04-10 17:07:02,939 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:02,939 INFO L442 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-04-10 17:07:02,939 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-04-10 17:07:02,939 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=468, Invalid=588, Unknown=0, NotChecked=0, Total=1056 [2018-04-10 17:07:02,940 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand 33 states. [2018-04-10 17:07:03,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:03,342 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2018-04-10 17:07:03,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-04-10 17:07:03,342 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 45 [2018-04-10 17:07:03,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:03,343 INFO L225 Difference]: With dead ends: 49 [2018-04-10 17:07:03,343 INFO L226 Difference]: Without dead ends: 47 [2018-04-10 17:07:03,344 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 461 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=1400, Invalid=2506, Unknown=0, NotChecked=0, Total=3906 [2018-04-10 17:07:03,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-04-10 17:07:03,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-04-10 17:07:03,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-04-10 17:07:03,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 47 transitions. [2018-04-10 17:07:03,345 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 47 transitions. Word has length 45 [2018-04-10 17:07:03,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:03,345 INFO L459 AbstractCegarLoop]: Abstraction has 47 states and 47 transitions. [2018-04-10 17:07:03,345 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-04-10 17:07:03,345 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2018-04-10 17:07:03,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-04-10 17:07:03,345 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:03,345 INFO L355 BasicCegarLoop]: trace histogram [29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:03,345 INFO L408 AbstractCegarLoop]: === Iteration 32 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:03,345 INFO L82 PathProgramCache]: Analyzing trace with hash 2034173627, now seen corresponding path program 29 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:03,348 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:03,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:03,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:03,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:03,602 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:03,618 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:03,618 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2018-04-10 17:07:03,618 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:03,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:03,619 INFO L182 omatonBuilderFactory]: Interpolants [4288#(not (= 80 |#Ultimate.C_memset_#amount|)), 4257#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 4258#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 4259#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 4260#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 4261#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 4262#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 4263#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 4264#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 4265#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 4266#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 4267#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 4268#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 4269#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 4270#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 4271#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 4272#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 4273#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 4274#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 4275#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 4276#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 4277#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 4278#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 4279#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 4280#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 4281#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 4218#true, 4282#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 4219#false, 4283#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 4284#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 4285#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 4286#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 4287#(<= |#Ultimate.C_memset_#t~loopctr5| 29)] [2018-04-10 17:07:03,619 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:03,619 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-04-10 17:07:03,619 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-04-10 17:07:03,620 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=499, Invalid=623, Unknown=0, NotChecked=0, Total=1122 [2018-04-10 17:07:03,620 INFO L87 Difference]: Start difference. First operand 47 states and 47 transitions. Second operand 34 states. [2018-04-10 17:07:04,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:04,038 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2018-04-10 17:07:04,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-04-10 17:07:04,038 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 46 [2018-04-10 17:07:04,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:04,039 INFO L225 Difference]: With dead ends: 50 [2018-04-10 17:07:04,039 INFO L226 Difference]: Without dead ends: 48 [2018-04-10 17:07:04,040 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 492 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=1493, Invalid=2667, Unknown=0, NotChecked=0, Total=4160 [2018-04-10 17:07:04,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-04-10 17:07:04,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-04-10 17:07:04,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-04-10 17:07:04,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2018-04-10 17:07:04,041 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 46 [2018-04-10 17:07:04,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:04,041 INFO L459 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2018-04-10 17:07:04,041 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-04-10 17:07:04,041 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2018-04-10 17:07:04,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-04-10 17:07:04,041 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:04,041 INFO L355 BasicCegarLoop]: trace histogram [30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:04,041 INFO L408 AbstractCegarLoop]: === Iteration 33 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:04,042 INFO L82 PathProgramCache]: Analyzing trace with hash -1978033508, now seen corresponding path program 30 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:04,044 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:04,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:04,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:04,319 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:04,336 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:04,336 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2018-04-10 17:07:04,336 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:04,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:04,336 INFO L182 omatonBuilderFactory]: Interpolants [4489#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 4490#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 4491#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 4492#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 4493#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 4494#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 4495#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 4496#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 4497#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 4498#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 4499#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 4500#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 4501#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 4502#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 4503#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 4504#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 4505#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 4506#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 4507#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 4508#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 4509#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 4510#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 4511#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 4512#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 4449#true, 4513#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 4450#false, 4514#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 4515#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 4516#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 4517#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 4518#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 4519#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 4520#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 4521#(not (= 80 |#Ultimate.C_memset_#amount|))] [2018-04-10 17:07:04,336 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:04,337 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-04-10 17:07:04,337 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-04-10 17:07:04,337 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=531, Invalid=659, Unknown=0, NotChecked=0, Total=1190 [2018-04-10 17:07:04,337 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand 35 states. [2018-04-10 17:07:04,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:04,783 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2018-04-10 17:07:04,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-04-10 17:07:04,784 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 47 [2018-04-10 17:07:04,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:04,784 INFO L225 Difference]: With dead ends: 51 [2018-04-10 17:07:04,784 INFO L226 Difference]: Without dead ends: 49 [2018-04-10 17:07:04,785 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 524 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=1589, Invalid=2833, Unknown=0, NotChecked=0, Total=4422 [2018-04-10 17:07:04,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-04-10 17:07:04,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-04-10 17:07:04,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-04-10 17:07:04,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2018-04-10 17:07:04,786 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 47 [2018-04-10 17:07:04,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:04,786 INFO L459 AbstractCegarLoop]: Abstraction has 49 states and 49 transitions. [2018-04-10 17:07:04,786 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-04-10 17:07:04,787 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2018-04-10 17:07:04,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-04-10 17:07:04,787 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:04,787 INFO L355 BasicCegarLoop]: trace histogram [31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:04,787 INFO L408 AbstractCegarLoop]: === Iteration 34 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:04,787 INFO L82 PathProgramCache]: Analyzing trace with hash -1802403109, now seen corresponding path program 31 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:04,789 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:04,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:04,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:04,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:05,052 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 0 proven. 496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:05,068 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:05,068 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2018-04-10 17:07:05,069 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:05,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:05,069 INFO L182 omatonBuilderFactory]: Interpolants [4736#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 4737#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 4738#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 4739#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 4740#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 4741#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 4742#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 4743#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 4744#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 4745#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 4746#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 4747#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 4748#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 4749#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 4686#true, 4750#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 4687#false, 4751#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 4752#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 4753#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 4754#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 4755#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 4756#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 4757#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 4758#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 4759#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 4760#(not (= 80 |#Ultimate.C_memset_#amount|)), 4727#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 4728#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 4729#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 4730#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 4731#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 4732#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 4733#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 4734#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 4735#(<= |#Ultimate.C_memset_#t~loopctr5| 7)] [2018-04-10 17:07:05,069 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 0 proven. 496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:05,069 INFO L442 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-04-10 17:07:05,069 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-04-10 17:07:05,070 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=564, Invalid=696, Unknown=0, NotChecked=0, Total=1260 [2018-04-10 17:07:05,070 INFO L87 Difference]: Start difference. First operand 49 states and 49 transitions. Second operand 36 states. [2018-04-10 17:07:05,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:05,512 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2018-04-10 17:07:05,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-04-10 17:07:05,512 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 48 [2018-04-10 17:07:05,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:05,512 INFO L225 Difference]: With dead ends: 52 [2018-04-10 17:07:05,512 INFO L226 Difference]: Without dead ends: 50 [2018-04-10 17:07:05,512 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 557 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=1688, Invalid=3004, Unknown=0, NotChecked=0, Total=4692 [2018-04-10 17:07:05,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-04-10 17:07:05,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-04-10 17:07:05,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-04-10 17:07:05,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2018-04-10 17:07:05,513 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 48 [2018-04-10 17:07:05,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:05,514 INFO L459 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2018-04-10 17:07:05,514 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-04-10 17:07:05,514 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2018-04-10 17:07:05,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-04-10 17:07:05,514 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:05,514 INFO L355 BasicCegarLoop]: trace histogram [32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:05,514 INFO L408 AbstractCegarLoop]: === Iteration 35 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:05,514 INFO L82 PathProgramCache]: Analyzing trace with hash -652828036, now seen corresponding path program 32 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:05,516 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:05,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:05,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:05,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:05,822 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:05,839 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:05,839 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2018-04-10 17:07:05,839 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:05,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:05,839 INFO L182 omatonBuilderFactory]: Interpolants [4992#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 4929#true, 4993#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 4930#false, 4994#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 4995#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 4996#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 4997#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 4998#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 4999#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 5000#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 5001#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 5002#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 5003#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 5004#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 5005#(not (= 80 |#Ultimate.C_memset_#amount|)), 4971#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 4972#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 4973#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 4974#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 4975#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 4976#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 4977#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 4978#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 4979#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 4980#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 4981#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 4982#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 4983#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 4984#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 4985#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 4986#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 4987#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 4988#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 4989#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 4990#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 4991#(<= |#Ultimate.C_memset_#t~loopctr5| 19)] [2018-04-10 17:07:05,840 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:05,840 INFO L442 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-04-10 17:07:05,840 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-04-10 17:07:05,840 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=598, Invalid=734, Unknown=0, NotChecked=0, Total=1332 [2018-04-10 17:07:05,840 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand 37 states. [2018-04-10 17:07:06,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:06,289 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2018-04-10 17:07:06,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-04-10 17:07:06,289 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 49 [2018-04-10 17:07:06,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:06,289 INFO L225 Difference]: With dead ends: 53 [2018-04-10 17:07:06,289 INFO L226 Difference]: Without dead ends: 51 [2018-04-10 17:07:06,290 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1790, Invalid=3180, Unknown=0, NotChecked=0, Total=4970 [2018-04-10 17:07:06,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-04-10 17:07:06,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-04-10 17:07:06,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-04-10 17:07:06,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2018-04-10 17:07:06,291 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 49 [2018-04-10 17:07:06,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:06,291 INFO L459 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2018-04-10 17:07:06,291 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-04-10 17:07:06,291 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2018-04-10 17:07:06,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-04-10 17:07:06,291 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:06,291 INFO L355 BasicCegarLoop]: trace histogram [33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:06,292 INFO L408 AbstractCegarLoop]: === Iteration 36 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:06,292 INFO L82 PathProgramCache]: Analyzing trace with hash 624260859, now seen corresponding path program 33 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:06,294 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:06,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:06,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:06,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:06,625 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:06,641 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:06,641 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2018-04-10 17:07:06,642 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:06,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:06,642 INFO L182 omatonBuilderFactory]: Interpolants [5248#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 5249#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 5250#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 5251#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 5252#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 5253#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 5254#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 5255#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 5256#(not (= 80 |#Ultimate.C_memset_#amount|)), 5221#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 5222#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 5223#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 5224#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 5225#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 5226#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 5227#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 5228#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 5229#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 5230#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 5231#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 5232#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 5233#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 5234#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 5235#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 5236#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 5237#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 5238#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 5239#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 5240#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 5241#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 5178#true, 5242#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 5179#false, 5243#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 5244#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 5245#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 5246#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 5247#(<= |#Ultimate.C_memset_#t~loopctr5| 25)] [2018-04-10 17:07:06,642 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:06,642 INFO L442 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-04-10 17:07:06,642 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-04-10 17:07:06,642 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=633, Invalid=773, Unknown=0, NotChecked=0, Total=1406 [2018-04-10 17:07:06,643 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand 38 states. [2018-04-10 17:07:07,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:07,125 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2018-04-10 17:07:07,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-04-10 17:07:07,125 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 50 [2018-04-10 17:07:07,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:07,126 INFO L225 Difference]: With dead ends: 54 [2018-04-10 17:07:07,126 INFO L226 Difference]: Without dead ends: 52 [2018-04-10 17:07:07,126 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1895, Invalid=3361, Unknown=0, NotChecked=0, Total=5256 [2018-04-10 17:07:07,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-04-10 17:07:07,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-04-10 17:07:07,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-04-10 17:07:07,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2018-04-10 17:07:07,127 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 50 [2018-04-10 17:07:07,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:07,127 INFO L459 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2018-04-10 17:07:07,127 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-04-10 17:07:07,127 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2018-04-10 17:07:07,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-04-10 17:07:07,128 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:07,128 INFO L355 BasicCegarLoop]: trace histogram [34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:07,128 INFO L408 AbstractCegarLoop]: === Iteration 37 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:07,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1559310940, now seen corresponding path program 34 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:07,130 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:07,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:07,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:07,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:07,450 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 595 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:07,466 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:07,467 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2018-04-10 17:07:07,467 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:07,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:07,467 INFO L182 omatonBuilderFactory]: Interpolants [5504#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 5505#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 5506#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 5507#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 5508#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 5509#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 5510#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 5511#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 5512#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 5513#(not (= 80 |#Ultimate.C_memset_#amount|)), 5477#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 5478#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 5479#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 5480#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 5481#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 5482#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 5483#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 5484#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 5485#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 5486#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 5487#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 5488#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 5489#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 5490#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 5491#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 5492#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 5493#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 5494#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 5495#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 5496#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 5433#true, 5497#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 5434#false, 5498#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 5499#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 5500#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 5501#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 5502#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 5503#(<= |#Ultimate.C_memset_#t~loopctr5| 25)] [2018-04-10 17:07:07,467 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 595 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:07,467 INFO L442 AbstractCegarLoop]: Interpolant automaton has 39 states [2018-04-10 17:07:07,467 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2018-04-10 17:07:07,467 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=669, Invalid=813, Unknown=0, NotChecked=0, Total=1482 [2018-04-10 17:07:07,468 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand 39 states. [2018-04-10 17:07:07,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:07,945 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2018-04-10 17:07:07,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-04-10 17:07:07,945 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 51 [2018-04-10 17:07:07,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:07,946 INFO L225 Difference]: With dead ends: 55 [2018-04-10 17:07:07,946 INFO L226 Difference]: Without dead ends: 53 [2018-04-10 17:07:07,946 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 662 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=2003, Invalid=3547, Unknown=0, NotChecked=0, Total=5550 [2018-04-10 17:07:07,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-04-10 17:07:07,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2018-04-10 17:07:07,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-04-10 17:07:07,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 53 transitions. [2018-04-10 17:07:07,948 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 53 transitions. Word has length 51 [2018-04-10 17:07:07,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:07,948 INFO L459 AbstractCegarLoop]: Abstraction has 53 states and 53 transitions. [2018-04-10 17:07:07,948 INFO L460 AbstractCegarLoop]: Interpolant automaton has 39 states. [2018-04-10 17:07:07,948 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 53 transitions. [2018-04-10 17:07:07,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-04-10 17:07:07,949 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:07,949 INFO L355 BasicCegarLoop]: trace histogram [35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:07,949 INFO L408 AbstractCegarLoop]: === Iteration 38 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:07,949 INFO L82 PathProgramCache]: Analyzing trace with hash 481092379, now seen corresponding path program 35 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:07,951 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:07,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:07,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:07,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:08,299 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:08,315 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:08,315 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2018-04-10 17:07:08,315 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:08,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:08,315 INFO L182 omatonBuilderFactory]: Interpolants [5760#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 5761#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 5762#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 5763#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 5764#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 5765#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 5766#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 5767#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 5768#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 5769#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 5770#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 5771#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 5772#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 5773#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 5774#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 5775#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 5776#(not (= 80 |#Ultimate.C_memset_#amount|)), 5739#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 5740#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 5741#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 5742#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 5743#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 5744#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 5745#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 5746#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 5747#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 5748#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 5749#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 5750#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 5751#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 5752#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 5753#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 5754#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 5755#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 5756#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 5757#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 5694#true, 5758#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 5695#false, 5759#(<= |#Ultimate.C_memset_#t~loopctr5| 19)] [2018-04-10 17:07:08,315 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:08,315 INFO L442 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-04-10 17:07:08,316 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-04-10 17:07:08,316 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=706, Invalid=854, Unknown=0, NotChecked=0, Total=1560 [2018-04-10 17:07:08,316 INFO L87 Difference]: Start difference. First operand 53 states and 53 transitions. Second operand 40 states. [2018-04-10 17:07:08,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:08,852 INFO L93 Difference]: Finished difference Result 56 states and 56 transitions. [2018-04-10 17:07:08,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-04-10 17:07:08,852 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 52 [2018-04-10 17:07:08,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:08,853 INFO L225 Difference]: With dead ends: 56 [2018-04-10 17:07:08,853 INFO L226 Difference]: Without dead ends: 54 [2018-04-10 17:07:08,853 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 699 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=2114, Invalid=3738, Unknown=0, NotChecked=0, Total=5852 [2018-04-10 17:07:08,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-04-10 17:07:08,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-04-10 17:07:08,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-04-10 17:07:08,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2018-04-10 17:07:08,855 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 52 [2018-04-10 17:07:08,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:08,855 INFO L459 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2018-04-10 17:07:08,855 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-04-10 17:07:08,855 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2018-04-10 17:07:08,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-04-10 17:07:08,855 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:08,855 INFO L355 BasicCegarLoop]: trace histogram [36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:08,855 INFO L408 AbstractCegarLoop]: === Iteration 39 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:08,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1416055356, now seen corresponding path program 36 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:08,857 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:08,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:08,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:08,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:09,207 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 0 proven. 666 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:09,223 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:09,223 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2018-04-10 17:07:09,224 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:09,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:09,224 INFO L182 omatonBuilderFactory]: Interpolants [6016#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 6017#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 6018#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 6019#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 6020#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 6021#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 6022#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 6023#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 6024#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 5961#true, 6025#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 5962#false, 6026#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 6027#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 6028#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 6029#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 6030#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 6031#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 6032#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 6033#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 6034#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 6035#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 6036#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 6037#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 6038#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 6039#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 6040#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 6041#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 6042#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 6043#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 6044#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 6045#(not (= 80 |#Ultimate.C_memset_#amount|)), 6007#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 6008#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 6009#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 6010#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 6011#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 6012#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 6013#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 6014#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 6015#(<= |#Ultimate.C_memset_#t~loopctr5| 7)] [2018-04-10 17:07:09,224 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 0 proven. 666 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:09,224 INFO L442 AbstractCegarLoop]: Interpolant automaton has 41 states [2018-04-10 17:07:09,224 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2018-04-10 17:07:09,224 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=744, Invalid=896, Unknown=0, NotChecked=0, Total=1640 [2018-04-10 17:07:09,225 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand 41 states. [2018-04-10 17:07:09,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:09,771 INFO L93 Difference]: Finished difference Result 57 states and 57 transitions. [2018-04-10 17:07:09,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-04-10 17:07:09,771 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 53 [2018-04-10 17:07:09,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:09,772 INFO L225 Difference]: With dead ends: 57 [2018-04-10 17:07:09,772 INFO L226 Difference]: Without dead ends: 55 [2018-04-10 17:07:09,772 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 737 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=2228, Invalid=3934, Unknown=0, NotChecked=0, Total=6162 [2018-04-10 17:07:09,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-04-10 17:07:09,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2018-04-10 17:07:09,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-04-10 17:07:09,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2018-04-10 17:07:09,773 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 53 [2018-04-10 17:07:09,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:09,773 INFO L459 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions. [2018-04-10 17:07:09,773 INFO L460 AbstractCegarLoop]: Interpolant automaton has 41 states. [2018-04-10 17:07:09,773 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2018-04-10 17:07:09,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-04-10 17:07:09,774 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:09,774 INFO L355 BasicCegarLoop]: trace histogram [37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:09,774 INFO L408 AbstractCegarLoop]: === Iteration 40 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:09,774 INFO L82 PathProgramCache]: Analyzing trace with hash 335136571, now seen corresponding path program 37 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:09,776 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:09,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:09,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:09,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:10,154 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 0 proven. 703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:10,170 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:10,171 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [42] total 42 [2018-04-10 17:07:10,171 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:10,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:10,171 INFO L182 omatonBuilderFactory]: Interpolants [6281#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 6282#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 6283#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 6284#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 6285#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 6286#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 6287#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 6288#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 6289#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 6290#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 6291#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 6292#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 6293#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 6294#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 6295#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 6296#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 6297#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 6234#true, 6298#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 6235#false, 6299#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 6300#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 6301#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 6302#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 6303#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 6304#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 6305#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 6306#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 6307#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 6308#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 6309#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 6310#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 6311#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 6312#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 6313#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 6314#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 6315#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 6316#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 6317#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 6318#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 6319#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 6320#(not (= 80 |#Ultimate.C_memset_#amount|))] [2018-04-10 17:07:10,171 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 0 proven. 703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:10,171 INFO L442 AbstractCegarLoop]: Interpolant automaton has 42 states [2018-04-10 17:07:10,171 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2018-04-10 17:07:10,171 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=783, Invalid=939, Unknown=0, NotChecked=0, Total=1722 [2018-04-10 17:07:10,172 INFO L87 Difference]: Start difference. First operand 55 states and 55 transitions. Second operand 42 states. [2018-04-10 17:07:10,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:10,753 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2018-04-10 17:07:10,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-04-10 17:07:10,753 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 54 [2018-04-10 17:07:10,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:10,754 INFO L225 Difference]: With dead ends: 58 [2018-04-10 17:07:10,754 INFO L226 Difference]: Without dead ends: 56 [2018-04-10 17:07:10,754 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 776 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=2345, Invalid=4135, Unknown=0, NotChecked=0, Total=6480 [2018-04-10 17:07:10,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-04-10 17:07:10,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-04-10 17:07:10,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-04-10 17:07:10,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 56 transitions. [2018-04-10 17:07:10,756 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 56 transitions. Word has length 54 [2018-04-10 17:07:10,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:10,756 INFO L459 AbstractCegarLoop]: Abstraction has 56 states and 56 transitions. [2018-04-10 17:07:10,756 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states. [2018-04-10 17:07:10,756 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 56 transitions. [2018-04-10 17:07:10,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-04-10 17:07:10,756 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:10,757 INFO L355 BasicCegarLoop]: trace histogram [38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:10,757 INFO L408 AbstractCegarLoop]: === Iteration 41 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:10,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1186392604, now seen corresponding path program 38 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:10,760 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:10,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:10,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:10,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:11,142 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:11,158 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:11,159 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2018-04-10 17:07:11,159 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:11,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:11,159 INFO L182 omatonBuilderFactory]: Interpolants [6592#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 6593#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 6594#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 6595#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 6596#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 6597#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 6598#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 6599#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 6600#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 6601#(not (= 80 |#Ultimate.C_memset_#amount|)), 6561#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 6562#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 6563#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 6564#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 6565#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 6566#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 6567#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 6568#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 6569#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 6570#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 6571#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 6572#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 6573#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 6574#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 6575#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 6576#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 6513#true, 6577#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 6514#false, 6578#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 6579#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 6580#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 6581#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 6582#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 6583#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 6584#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 6585#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 6586#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 6587#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 6588#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 6589#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 6590#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 6591#(<= |#Ultimate.C_memset_#t~loopctr5| 29)] [2018-04-10 17:07:11,159 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:11,159 INFO L442 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-04-10 17:07:11,159 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-04-10 17:07:11,159 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=823, Invalid=983, Unknown=0, NotChecked=0, Total=1806 [2018-04-10 17:07:11,160 INFO L87 Difference]: Start difference. First operand 56 states and 56 transitions. Second operand 43 states. [2018-04-10 17:07:11,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:11,764 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2018-04-10 17:07:11,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-04-10 17:07:11,764 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 55 [2018-04-10 17:07:11,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:11,765 INFO L225 Difference]: With dead ends: 59 [2018-04-10 17:07:11,765 INFO L226 Difference]: Without dead ends: 57 [2018-04-10 17:07:11,765 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 816 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=2465, Invalid=4341, Unknown=0, NotChecked=0, Total=6806 [2018-04-10 17:07:11,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-04-10 17:07:11,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2018-04-10 17:07:11,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-04-10 17:07:11,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 57 transitions. [2018-04-10 17:07:11,766 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 57 transitions. Word has length 55 [2018-04-10 17:07:11,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:11,766 INFO L459 AbstractCegarLoop]: Abstraction has 57 states and 57 transitions. [2018-04-10 17:07:11,766 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-04-10 17:07:11,766 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 57 transitions. [2018-04-10 17:07:11,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-04-10 17:07:11,767 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:11,767 INFO L355 BasicCegarLoop]: trace histogram [39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:11,767 INFO L408 AbstractCegarLoop]: === Iteration 42 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:11,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1805525851, now seen corresponding path program 39 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:11,770 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:11,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:11,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:11,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:12,175 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 780 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:12,192 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:12,192 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [44] total 44 [2018-04-10 17:07:12,192 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:12,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:12,192 INFO L182 omatonBuilderFactory]: Interpolants [6848#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 6849#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 6850#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 6851#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 6852#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 6853#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 6854#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 6855#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 6856#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 6857#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 6858#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 6859#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 6860#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 6861#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 6798#true, 6862#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 6799#false, 6863#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 6864#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 6865#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 6866#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 6867#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 6868#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 6869#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 6870#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 6871#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 6872#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 6873#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 6874#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 6875#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 6876#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 6877#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 6878#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 6879#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 6880#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 6881#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 6882#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 6883#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 6884#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 6885#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 6886#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 6887#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 6888#(not (= 80 |#Ultimate.C_memset_#amount|)), 6847#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-04-10 17:07:12,192 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 780 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:12,192 INFO L442 AbstractCegarLoop]: Interpolant automaton has 44 states [2018-04-10 17:07:12,193 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2018-04-10 17:07:12,193 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=864, Invalid=1028, Unknown=0, NotChecked=0, Total=1892 [2018-04-10 17:07:12,193 INFO L87 Difference]: Start difference. First operand 57 states and 57 transitions. Second operand 44 states. [2018-04-10 17:07:12,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:12,879 INFO L93 Difference]: Finished difference Result 60 states and 60 transitions. [2018-04-10 17:07:12,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-04-10 17:07:12,879 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 56 [2018-04-10 17:07:12,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:12,879 INFO L225 Difference]: With dead ends: 60 [2018-04-10 17:07:12,879 INFO L226 Difference]: Without dead ends: 58 [2018-04-10 17:07:12,880 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 857 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=2588, Invalid=4552, Unknown=0, NotChecked=0, Total=7140 [2018-04-10 17:07:12,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-04-10 17:07:12,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-04-10 17:07:12,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-04-10 17:07:12,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2018-04-10 17:07:12,881 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 56 [2018-04-10 17:07:12,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:12,881 INFO L459 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2018-04-10 17:07:12,881 INFO L460 AbstractCegarLoop]: Interpolant automaton has 44 states. [2018-04-10 17:07:12,881 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2018-04-10 17:07:12,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-04-10 17:07:12,881 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:12,881 INFO L355 BasicCegarLoop]: trace histogram [40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:12,881 INFO L408 AbstractCegarLoop]: === Iteration 43 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:12,882 INFO L82 PathProgramCache]: Analyzing trace with hash -476179972, now seen corresponding path program 40 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:12,883 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:12,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:12,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:12,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:13,327 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 0 proven. 820 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:13,344 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:13,344 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [45] total 45 [2018-04-10 17:07:13,344 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:13,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:13,344 INFO L182 omatonBuilderFactory]: Interpolants [7168#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 7169#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 7170#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 7171#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 7172#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 7173#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 7174#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 7175#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 7176#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 7177#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 7178#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 7179#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 7180#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 7181#(not (= 80 |#Ultimate.C_memset_#amount|)), 7139#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 7140#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 7141#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 7142#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 7143#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 7144#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 7145#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 7146#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 7147#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 7148#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 7149#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 7150#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 7151#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 7152#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 7089#true, 7153#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 7090#false, 7154#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 7155#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 7156#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 7157#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 7158#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 7159#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 7160#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 7161#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 7162#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 7163#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 7164#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 7165#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 7166#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 7167#(<= |#Ultimate.C_memset_#t~loopctr5| 27)] [2018-04-10 17:07:13,344 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 0 proven. 820 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:13,344 INFO L442 AbstractCegarLoop]: Interpolant automaton has 45 states [2018-04-10 17:07:13,345 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2018-04-10 17:07:13,345 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=906, Invalid=1074, Unknown=0, NotChecked=0, Total=1980 [2018-04-10 17:07:13,345 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand 45 states. [2018-04-10 17:07:13,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:13,968 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2018-04-10 17:07:13,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-04-10 17:07:13,968 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 57 [2018-04-10 17:07:13,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:13,968 INFO L225 Difference]: With dead ends: 61 [2018-04-10 17:07:13,968 INFO L226 Difference]: Without dead ends: 59 [2018-04-10 17:07:13,968 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 899 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=2714, Invalid=4768, Unknown=0, NotChecked=0, Total=7482 [2018-04-10 17:07:13,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-04-10 17:07:13,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2018-04-10 17:07:13,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-04-10 17:07:13,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 59 transitions. [2018-04-10 17:07:13,969 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 59 transitions. Word has length 57 [2018-04-10 17:07:13,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:13,970 INFO L459 AbstractCegarLoop]: Abstraction has 59 states and 59 transitions. [2018-04-10 17:07:13,970 INFO L460 AbstractCegarLoop]: Interpolant automaton has 45 states. [2018-04-10 17:07:13,970 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 59 transitions. [2018-04-10 17:07:13,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-04-10 17:07:13,971 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:13,971 INFO L355 BasicCegarLoop]: trace histogram [41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:13,971 INFO L408 AbstractCegarLoop]: === Iteration 44 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:13,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1805383547, now seen corresponding path program 41 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:13,973 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:13,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:14,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:14,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:14,420 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:14,436 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:14,436 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [46] total 46 [2018-04-10 17:07:14,436 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:14,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:14,437 INFO L182 omatonBuilderFactory]: Interpolants [7437#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 7438#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 7439#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 7440#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 7441#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 7442#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 7443#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 7444#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 7445#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 7446#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 7447#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 7448#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 7449#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 7386#true, 7450#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 7387#false, 7451#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 7452#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 7453#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 7454#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 7455#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 7456#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 7457#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 7458#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 7459#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 7460#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 7461#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 7462#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 7463#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 7464#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 7465#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 7466#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 7467#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 7468#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 7469#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 7470#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 7471#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 7472#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 7473#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 7474#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 7475#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 7476#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 7477#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 7478#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 7479#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 7480#(not (= 80 |#Ultimate.C_memset_#amount|))] [2018-04-10 17:07:14,437 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:14,437 INFO L442 AbstractCegarLoop]: Interpolant automaton has 46 states [2018-04-10 17:07:14,437 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2018-04-10 17:07:14,437 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=949, Invalid=1121, Unknown=0, NotChecked=0, Total=2070 [2018-04-10 17:07:14,437 INFO L87 Difference]: Start difference. First operand 59 states and 59 transitions. Second operand 46 states. [2018-04-10 17:07:15,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:15,123 INFO L93 Difference]: Finished difference Result 62 states and 62 transitions. [2018-04-10 17:07:15,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2018-04-10 17:07:15,123 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 58 [2018-04-10 17:07:15,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:15,124 INFO L225 Difference]: With dead ends: 62 [2018-04-10 17:07:15,124 INFO L226 Difference]: Without dead ends: 60 [2018-04-10 17:07:15,124 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 942 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=2843, Invalid=4989, Unknown=0, NotChecked=0, Total=7832 [2018-04-10 17:07:15,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-04-10 17:07:15,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-04-10 17:07:15,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-04-10 17:07:15,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 60 transitions. [2018-04-10 17:07:15,125 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 60 transitions. Word has length 58 [2018-04-10 17:07:15,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:15,125 INFO L459 AbstractCegarLoop]: Abstraction has 60 states and 60 transitions. [2018-04-10 17:07:15,125 INFO L460 AbstractCegarLoop]: Interpolant automaton has 46 states. [2018-04-10 17:07:15,125 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 60 transitions. [2018-04-10 17:07:15,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-04-10 17:07:15,125 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:15,125 INFO L355 BasicCegarLoop]: trace histogram [42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:15,125 INFO L408 AbstractCegarLoop]: === Iteration 45 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:15,126 INFO L82 PathProgramCache]: Analyzing trace with hash -480591396, now seen corresponding path program 42 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:15,127 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:15,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:15,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:15,609 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 0 proven. 903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:15,625 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:15,625 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [47] total 47 [2018-04-10 17:07:15,625 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:15,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:15,626 INFO L182 omatonBuilderFactory]: Interpolants [7744#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 7745#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 7746#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 7747#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 7748#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 7749#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 7750#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 7751#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 7752#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 7689#true, 7753#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 7690#false, 7754#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 7755#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 7756#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 7757#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 7758#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 7759#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 7760#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 7761#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 7762#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 7763#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 7764#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 7765#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 7766#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 7767#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 7768#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 7769#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 7770#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 7771#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 7772#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 7773#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 7774#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 7775#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 7776#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 7777#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 7778#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 7779#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 7780#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 7781#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 7782#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 7783#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 7784#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 7785#(not (= 80 |#Ultimate.C_memset_#amount|)), 7741#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 7742#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 7743#(= 1 |#Ultimate.C_memset_#t~loopctr5|)] [2018-04-10 17:07:15,626 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 0 proven. 903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:15,626 INFO L442 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-04-10 17:07:15,626 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-04-10 17:07:15,626 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=993, Invalid=1169, Unknown=0, NotChecked=0, Total=2162 [2018-04-10 17:07:15,626 INFO L87 Difference]: Start difference. First operand 60 states and 60 transitions. Second operand 47 states. [2018-04-10 17:07:16,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:16,324 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2018-04-10 17:07:16,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-04-10 17:07:16,324 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 59 [2018-04-10 17:07:16,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:16,325 INFO L225 Difference]: With dead ends: 63 [2018-04-10 17:07:16,325 INFO L226 Difference]: Without dead ends: 61 [2018-04-10 17:07:16,325 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 986 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=2975, Invalid=5215, Unknown=0, NotChecked=0, Total=8190 [2018-04-10 17:07:16,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-04-10 17:07:16,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-04-10 17:07:16,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-04-10 17:07:16,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 61 transitions. [2018-04-10 17:07:16,326 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 61 transitions. Word has length 59 [2018-04-10 17:07:16,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:16,326 INFO L459 AbstractCegarLoop]: Abstraction has 61 states and 61 transitions. [2018-04-10 17:07:16,326 INFO L460 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-04-10 17:07:16,326 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2018-04-10 17:07:16,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-04-10 17:07:16,327 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:16,327 INFO L355 BasicCegarLoop]: trace histogram [43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:16,327 INFO L408 AbstractCegarLoop]: === Iteration 46 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:16,327 INFO L82 PathProgramCache]: Analyzing trace with hash 1668629403, now seen corresponding path program 43 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:16,329 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:16,828 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:16,844 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:16,844 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [48] total 48 [2018-04-10 17:07:16,844 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:16,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:16,845 INFO L182 omatonBuilderFactory]: Interpolants [8064#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 8065#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 8066#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 8067#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 8068#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 8069#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 8070#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 8071#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 8072#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 8073#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 8074#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 8075#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 8076#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 8077#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 8078#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 8079#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 8080#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 8081#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 8082#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 8083#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 8084#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 8085#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 8086#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 8087#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 8088#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 8089#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 8090#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 8091#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 8092#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 8093#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 8094#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 8095#(<= |#Ultimate.C_memset_#t~loopctr5| 43), 8096#(not (= 80 |#Ultimate.C_memset_#amount|)), 8051#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 8052#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 8053#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 8054#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 8055#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 8056#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 8057#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 8058#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 8059#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 8060#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 8061#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 7998#true, 8062#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 7999#false, 8063#(<= |#Ultimate.C_memset_#t~loopctr5| 11)] [2018-04-10 17:07:16,845 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:16,845 INFO L442 AbstractCegarLoop]: Interpolant automaton has 48 states [2018-04-10 17:07:16,845 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2018-04-10 17:07:16,845 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1038, Invalid=1218, Unknown=0, NotChecked=0, Total=2256 [2018-04-10 17:07:16,845 INFO L87 Difference]: Start difference. First operand 61 states and 61 transitions. Second operand 48 states. [2018-04-10 17:07:17,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:17,593 INFO L93 Difference]: Finished difference Result 64 states and 64 transitions. [2018-04-10 17:07:17,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-04-10 17:07:17,593 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 60 [2018-04-10 17:07:17,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:17,593 INFO L225 Difference]: With dead ends: 64 [2018-04-10 17:07:17,593 INFO L226 Difference]: Without dead ends: 62 [2018-04-10 17:07:17,594 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1031 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=3110, Invalid=5446, Unknown=0, NotChecked=0, Total=8556 [2018-04-10 17:07:17,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-04-10 17:07:17,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2018-04-10 17:07:17,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-04-10 17:07:17,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 62 transitions. [2018-04-10 17:07:17,595 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 62 transitions. Word has length 60 [2018-04-10 17:07:17,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:17,595 INFO L459 AbstractCegarLoop]: Abstraction has 62 states and 62 transitions. [2018-04-10 17:07:17,595 INFO L460 AbstractCegarLoop]: Interpolant automaton has 48 states. [2018-04-10 17:07:17,595 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 62 transitions. [2018-04-10 17:07:17,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-04-10 17:07:17,595 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:17,595 INFO L355 BasicCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:17,595 INFO L408 AbstractCegarLoop]: === Iteration 47 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:17,595 INFO L82 PathProgramCache]: Analyzing trace with hash -425002564, now seen corresponding path program 44 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:17,598 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:17,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:17,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:17,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:18,091 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:18,108 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:18,108 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [49] total 49 [2018-04-10 17:07:18,108 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:18,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:18,108 INFO L182 omatonBuilderFactory]: Interpolants [8367#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 8368#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 8369#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 8370#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 8371#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 8372#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 8373#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 8374#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 8375#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 8376#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 8377#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 8378#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 8379#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 8380#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 8381#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 8382#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 8383#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 8384#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 8385#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 8386#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 8387#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 8388#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 8389#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 8390#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 8391#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 8392#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 8393#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 8394#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 8395#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 8396#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 8397#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 8398#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 8399#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 8400#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 8401#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 8402#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 8403#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 8404#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 8405#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 8406#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 8407#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 8408#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 8409#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 8410#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 8411#(<= |#Ultimate.C_memset_#t~loopctr5| 43), 8412#(<= |#Ultimate.C_memset_#t~loopctr5| 44), 8413#(not (= 80 |#Ultimate.C_memset_#amount|)), 8313#true, 8314#false] [2018-04-10 17:07:18,108 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:18,108 INFO L442 AbstractCegarLoop]: Interpolant automaton has 49 states [2018-04-10 17:07:18,109 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2018-04-10 17:07:18,109 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1084, Invalid=1268, Unknown=0, NotChecked=0, Total=2352 [2018-04-10 17:07:18,109 INFO L87 Difference]: Start difference. First operand 62 states and 62 transitions. Second operand 49 states. [2018-04-10 17:07:18,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:18,836 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2018-04-10 17:07:18,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-04-10 17:07:18,836 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 61 [2018-04-10 17:07:18,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:18,836 INFO L225 Difference]: With dead ends: 65 [2018-04-10 17:07:18,836 INFO L226 Difference]: Without dead ends: 63 [2018-04-10 17:07:18,836 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1077 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=3248, Invalid=5682, Unknown=0, NotChecked=0, Total=8930 [2018-04-10 17:07:18,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-04-10 17:07:18,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-04-10 17:07:18,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-04-10 17:07:18,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 63 transitions. [2018-04-10 17:07:18,838 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 63 transitions. Word has length 61 [2018-04-10 17:07:18,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:18,838 INFO L459 AbstractCegarLoop]: Abstraction has 63 states and 63 transitions. [2018-04-10 17:07:18,838 INFO L460 AbstractCegarLoop]: Interpolant automaton has 49 states. [2018-04-10 17:07:18,838 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2018-04-10 17:07:18,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-04-10 17:07:18,838 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:18,838 INFO L355 BasicCegarLoop]: trace histogram [45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:18,838 INFO L408 AbstractCegarLoop]: === Iteration 48 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:18,838 INFO L82 PathProgramCache]: Analyzing trace with hash -903084101, now seen corresponding path program 45 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:18,840 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:18,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:18,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:18,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:19,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1035 backedges. 0 proven. 1035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:19,423 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:19,424 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [50] total 50 [2018-04-10 17:07:19,424 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:19,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:19,424 INFO L182 omatonBuilderFactory]: Interpolants [8704#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 8705#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 8706#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 8707#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 8708#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 8709#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 8710#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 8711#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 8712#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 8713#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 8714#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 8715#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 8716#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 8717#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 8718#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 8719#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 8720#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 8721#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 8722#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 8723#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 8724#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 8725#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 8726#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 8727#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 8728#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 8729#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 8730#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 8731#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 8732#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 8733#(<= |#Ultimate.C_memset_#t~loopctr5| 43), 8734#(<= |#Ultimate.C_memset_#t~loopctr5| 44), 8735#(<= |#Ultimate.C_memset_#t~loopctr5| 45), 8736#(not (= 80 |#Ultimate.C_memset_#amount|)), 8634#true, 8635#false, 8689#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 8690#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 8691#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 8692#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 8693#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 8694#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 8695#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 8696#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 8697#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 8698#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 8699#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 8700#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 8701#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 8702#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 8703#(<= |#Ultimate.C_memset_#t~loopctr5| 13)] [2018-04-10 17:07:19,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1035 backedges. 0 proven. 1035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:19,424 INFO L442 AbstractCegarLoop]: Interpolant automaton has 50 states [2018-04-10 17:07:19,424 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2018-04-10 17:07:19,424 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1131, Invalid=1319, Unknown=0, NotChecked=0, Total=2450 [2018-04-10 17:07:19,425 INFO L87 Difference]: Start difference. First operand 63 states and 63 transitions. Second operand 50 states. [2018-04-10 17:07:20,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:20,209 INFO L93 Difference]: Finished difference Result 66 states and 66 transitions. [2018-04-10 17:07:20,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-04-10 17:07:20,209 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 62 [2018-04-10 17:07:20,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:20,210 INFO L225 Difference]: With dead ends: 66 [2018-04-10 17:07:20,210 INFO L226 Difference]: Without dead ends: 64 [2018-04-10 17:07:20,210 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1124 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=3389, Invalid=5923, Unknown=0, NotChecked=0, Total=9312 [2018-04-10 17:07:20,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-04-10 17:07:20,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-04-10 17:07:20,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-04-10 17:07:20,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 64 transitions. [2018-04-10 17:07:20,212 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 64 transitions. Word has length 62 [2018-04-10 17:07:20,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:20,212 INFO L459 AbstractCegarLoop]: Abstraction has 64 states and 64 transitions. [2018-04-10 17:07:20,212 INFO L460 AbstractCegarLoop]: Interpolant automaton has 50 states. [2018-04-10 17:07:20,212 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 64 transitions. [2018-04-10 17:07:20,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-04-10 17:07:20,212 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:20,212 INFO L355 BasicCegarLoop]: trace histogram [46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:20,212 INFO L408 AbstractCegarLoop]: === Iteration 49 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:20,212 INFO L82 PathProgramCache]: Analyzing trace with hash 1456257436, now seen corresponding path program 46 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:20,215 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:20,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:20,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:20,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:20,756 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:20,772 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:20,773 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [51] total 51 [2018-04-10 17:07:20,773 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:20,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:20,773 INFO L182 omatonBuilderFactory]: Interpolants [8961#true, 8962#false, 9017#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 9018#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 9019#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 9020#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 9021#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 9022#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 9023#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 9024#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 9025#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 9026#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 9027#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 9028#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 9029#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 9030#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 9031#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 9032#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 9033#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 9034#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 9035#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 9036#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 9037#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 9038#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 9039#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 9040#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 9041#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 9042#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 9043#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 9044#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 9045#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 9046#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 9047#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 9048#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 9049#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 9050#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 9051#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 9052#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 9053#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 9054#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 9055#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 9056#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 9057#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 9058#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 9059#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 9060#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 9061#(<= |#Ultimate.C_memset_#t~loopctr5| 43), 9062#(<= |#Ultimate.C_memset_#t~loopctr5| 44), 9063#(<= |#Ultimate.C_memset_#t~loopctr5| 45), 9064#(<= |#Ultimate.C_memset_#t~loopctr5| 46), 9065#(not (= 80 |#Ultimate.C_memset_#amount|))] [2018-04-10 17:07:20,773 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:20,773 INFO L442 AbstractCegarLoop]: Interpolant automaton has 51 states [2018-04-10 17:07:20,774 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2018-04-10 17:07:20,774 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1179, Invalid=1371, Unknown=0, NotChecked=0, Total=2550 [2018-04-10 17:07:20,774 INFO L87 Difference]: Start difference. First operand 64 states and 64 transitions. Second operand 51 states. [2018-04-10 17:07:21,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:21,599 INFO L93 Difference]: Finished difference Result 67 states and 67 transitions. [2018-04-10 17:07:21,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-04-10 17:07:21,600 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 63 [2018-04-10 17:07:21,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:21,600 INFO L225 Difference]: With dead ends: 67 [2018-04-10 17:07:21,600 INFO L226 Difference]: Without dead ends: 65 [2018-04-10 17:07:21,601 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1172 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=3533, Invalid=6169, Unknown=0, NotChecked=0, Total=9702 [2018-04-10 17:07:21,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-04-10 17:07:21,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-04-10 17:07:21,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-04-10 17:07:21,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 65 transitions. [2018-04-10 17:07:21,602 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 65 transitions. Word has length 63 [2018-04-10 17:07:21,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:21,602 INFO L459 AbstractCegarLoop]: Abstraction has 65 states and 65 transitions. [2018-04-10 17:07:21,602 INFO L460 AbstractCegarLoop]: Interpolant automaton has 51 states. [2018-04-10 17:07:21,602 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 65 transitions. [2018-04-10 17:07:21,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-04-10 17:07:21,602 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:21,602 INFO L355 BasicCegarLoop]: trace histogram [47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:21,602 INFO L408 AbstractCegarLoop]: === Iteration 50 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:21,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1581401051, now seen corresponding path program 47 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:21,605 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:21,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:21,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:22,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 1128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:22,187 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:22,187 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [52] total 52 [2018-04-10 17:07:22,187 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:22,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:22,188 INFO L182 omatonBuilderFactory]: Interpolants [9351#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 9352#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 9353#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 9354#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 9355#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 9356#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 9357#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 9358#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 9359#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 9360#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 9361#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 9362#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 9363#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 9364#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 9365#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 9366#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 9367#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 9368#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 9369#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 9370#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 9371#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 9372#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 9373#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 9374#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 9375#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 9376#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 9377#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 9378#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 9379#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 9380#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 9381#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 9382#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 9383#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 9384#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 9385#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 9386#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 9387#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 9388#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 9389#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 9390#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 9391#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 9392#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 9393#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 9394#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 9395#(<= |#Ultimate.C_memset_#t~loopctr5| 43), 9396#(<= |#Ultimate.C_memset_#t~loopctr5| 44), 9397#(<= |#Ultimate.C_memset_#t~loopctr5| 45), 9398#(<= |#Ultimate.C_memset_#t~loopctr5| 46), 9399#(<= |#Ultimate.C_memset_#t~loopctr5| 47), 9400#(not (= 80 |#Ultimate.C_memset_#amount|)), 9294#true, 9295#false] [2018-04-10 17:07:22,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 1128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:22,188 INFO L442 AbstractCegarLoop]: Interpolant automaton has 52 states [2018-04-10 17:07:22,188 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2018-04-10 17:07:22,188 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1228, Invalid=1424, Unknown=0, NotChecked=0, Total=2652 [2018-04-10 17:07:22,188 INFO L87 Difference]: Start difference. First operand 65 states and 65 transitions. Second operand 52 states. [2018-04-10 17:07:23,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:23,029 INFO L93 Difference]: Finished difference Result 68 states and 68 transitions. [2018-04-10 17:07:23,029 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-04-10 17:07:23,029 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 64 [2018-04-10 17:07:23,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:23,030 INFO L225 Difference]: With dead ends: 68 [2018-04-10 17:07:23,030 INFO L226 Difference]: Without dead ends: 66 [2018-04-10 17:07:23,030 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1221 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=3680, Invalid=6420, Unknown=0, NotChecked=0, Total=10100 [2018-04-10 17:07:23,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-04-10 17:07:23,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2018-04-10 17:07:23,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-04-10 17:07:23,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 66 transitions. [2018-04-10 17:07:23,031 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 66 transitions. Word has length 64 [2018-04-10 17:07:23,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:23,031 INFO L459 AbstractCegarLoop]: Abstraction has 66 states and 66 transitions. [2018-04-10 17:07:23,031 INFO L460 AbstractCegarLoop]: Interpolant automaton has 52 states. [2018-04-10 17:07:23,031 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 66 transitions. [2018-04-10 17:07:23,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-04-10 17:07:23,032 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:23,032 INFO L355 BasicCegarLoop]: trace histogram [48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:23,032 INFO L408 AbstractCegarLoop]: === Iteration 51 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:23,032 INFO L82 PathProgramCache]: Analyzing trace with hash 1165885820, now seen corresponding path program 48 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:23,034 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:23,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:23,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:23,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:23,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 1176 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:23,640 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:23,641 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [53] total 53 [2018-04-10 17:07:23,641 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:23,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:23,641 INFO L182 omatonBuilderFactory]: Interpolants [9728#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 9729#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 9730#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 9731#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 9732#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 9733#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 9734#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 9735#(<= |#Ultimate.C_memset_#t~loopctr5| 43), 9736#(<= |#Ultimate.C_memset_#t~loopctr5| 44), 9737#(<= |#Ultimate.C_memset_#t~loopctr5| 45), 9738#(<= |#Ultimate.C_memset_#t~loopctr5| 46), 9739#(<= |#Ultimate.C_memset_#t~loopctr5| 47), 9740#(<= |#Ultimate.C_memset_#t~loopctr5| 48), 9741#(not (= 80 |#Ultimate.C_memset_#amount|)), 9633#true, 9634#false, 9691#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 9692#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 9693#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 9694#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 9695#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 9696#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 9697#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 9698#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 9699#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 9700#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 9701#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 9702#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 9703#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 9704#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 9705#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 9706#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 9707#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 9708#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 9709#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 9710#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 9711#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 9712#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 9713#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 9714#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 9715#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 9716#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 9717#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 9718#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 9719#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 9720#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 9721#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 9722#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 9723#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 9724#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 9725#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 9726#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 9727#(<= |#Ultimate.C_memset_#t~loopctr5| 35)] [2018-04-10 17:07:23,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 1176 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:23,641 INFO L442 AbstractCegarLoop]: Interpolant automaton has 53 states [2018-04-10 17:07:23,641 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2018-04-10 17:07:23,641 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1278, Invalid=1478, Unknown=0, NotChecked=0, Total=2756 [2018-04-10 17:07:23,642 INFO L87 Difference]: Start difference. First operand 66 states and 66 transitions. Second operand 53 states. [2018-04-10 17:07:24,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:24,482 INFO L93 Difference]: Finished difference Result 69 states and 69 transitions. [2018-04-10 17:07:24,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2018-04-10 17:07:24,482 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 65 [2018-04-10 17:07:24,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:24,483 INFO L225 Difference]: With dead ends: 69 [2018-04-10 17:07:24,483 INFO L226 Difference]: Without dead ends: 67 [2018-04-10 17:07:24,483 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1271 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=3830, Invalid=6676, Unknown=0, NotChecked=0, Total=10506 [2018-04-10 17:07:24,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-04-10 17:07:24,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2018-04-10 17:07:24,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-04-10 17:07:24,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 67 transitions. [2018-04-10 17:07:24,484 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 67 transitions. Word has length 65 [2018-04-10 17:07:24,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:24,484 INFO L459 AbstractCegarLoop]: Abstraction has 67 states and 67 transitions. [2018-04-10 17:07:24,484 INFO L460 AbstractCegarLoop]: Interpolant automaton has 53 states. [2018-04-10 17:07:24,484 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 67 transitions. [2018-04-10 17:07:24,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-04-10 17:07:24,485 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:24,485 INFO L355 BasicCegarLoop]: trace histogram [49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:24,485 INFO L408 AbstractCegarLoop]: === Iteration 52 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:24,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1169815547, now seen corresponding path program 49 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:24,487 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:24,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:24,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:24,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:25,093 INFO L134 CoverageAnalysis]: Checked inductivity of 1225 backedges. 0 proven. 1225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:25,109 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:25,109 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [54] total 54 [2018-04-10 17:07:25,109 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:25,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:25,109 INFO L182 omatonBuilderFactory]: Interpolants [10037#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 10038#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 10039#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 10040#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 10041#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 10042#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 10043#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 10044#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 10045#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 10046#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 10047#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 10048#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 10049#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 10050#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 10051#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 10052#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 10053#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 10054#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 10055#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 10056#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 10057#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 10058#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 10059#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 10060#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 10061#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 10062#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 10063#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 10064#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 10065#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 10066#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 10067#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 10068#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 10069#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 10070#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 10071#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 10072#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 10073#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 10074#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 10075#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 10076#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 10077#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 10078#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 10079#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 10080#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 10081#(<= |#Ultimate.C_memset_#t~loopctr5| 43), 10082#(<= |#Ultimate.C_memset_#t~loopctr5| 44), 10083#(<= |#Ultimate.C_memset_#t~loopctr5| 45), 10084#(<= |#Ultimate.C_memset_#t~loopctr5| 46), 10085#(<= |#Ultimate.C_memset_#t~loopctr5| 47), 10086#(<= |#Ultimate.C_memset_#t~loopctr5| 48), 10087#(<= |#Ultimate.C_memset_#t~loopctr5| 49), 10088#(not (= 80 |#Ultimate.C_memset_#amount|)), 9978#true, 9979#false] [2018-04-10 17:07:25,110 INFO L134 CoverageAnalysis]: Checked inductivity of 1225 backedges. 0 proven. 1225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:25,110 INFO L442 AbstractCegarLoop]: Interpolant automaton has 54 states [2018-04-10 17:07:25,110 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2018-04-10 17:07:25,110 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1329, Invalid=1533, Unknown=0, NotChecked=0, Total=2862 [2018-04-10 17:07:25,110 INFO L87 Difference]: Start difference. First operand 67 states and 67 transitions. Second operand 54 states. [2018-04-10 17:07:26,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:26,033 INFO L93 Difference]: Finished difference Result 70 states and 70 transitions. [2018-04-10 17:07:26,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2018-04-10 17:07:26,033 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 66 [2018-04-10 17:07:26,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:26,034 INFO L225 Difference]: With dead ends: 70 [2018-04-10 17:07:26,034 INFO L226 Difference]: Without dead ends: 68 [2018-04-10 17:07:26,034 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1322 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=3983, Invalid=6937, Unknown=0, NotChecked=0, Total=10920 [2018-04-10 17:07:26,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-04-10 17:07:26,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2018-04-10 17:07:26,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-04-10 17:07:26,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 68 transitions. [2018-04-10 17:07:26,035 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 68 transitions. Word has length 66 [2018-04-10 17:07:26,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:26,036 INFO L459 AbstractCegarLoop]: Abstraction has 68 states and 68 transitions. [2018-04-10 17:07:26,036 INFO L460 AbstractCegarLoop]: Interpolant automaton has 54 states. [2018-04-10 17:07:26,036 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 68 transitions. [2018-04-10 17:07:26,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-04-10 17:07:26,036 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:26,036 INFO L355 BasicCegarLoop]: trace histogram [50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:26,036 INFO L408 AbstractCegarLoop]: === Iteration 53 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:26,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1291637084, now seen corresponding path program 50 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:26,038 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:26,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:26,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:26,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:26,663 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 1275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:26,679 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:26,679 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [55] total 55 [2018-04-10 17:07:26,680 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:26,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:26,680 INFO L182 omatonBuilderFactory]: Interpolants [10389#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 10390#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 10391#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 10392#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 10393#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 10394#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 10395#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 10396#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 10397#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 10398#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 10399#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 10400#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 10401#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 10402#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 10403#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 10404#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 10405#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 10406#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 10407#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 10408#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 10409#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 10410#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 10411#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 10412#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 10413#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 10414#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 10415#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 10416#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 10417#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 10418#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 10419#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 10420#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 10421#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 10422#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 10423#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 10424#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 10425#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 10426#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 10427#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 10428#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 10429#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 10430#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 10431#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 10432#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 10433#(<= |#Ultimate.C_memset_#t~loopctr5| 43), 10434#(<= |#Ultimate.C_memset_#t~loopctr5| 44), 10435#(<= |#Ultimate.C_memset_#t~loopctr5| 45), 10436#(<= |#Ultimate.C_memset_#t~loopctr5| 46), 10437#(<= |#Ultimate.C_memset_#t~loopctr5| 47), 10438#(<= |#Ultimate.C_memset_#t~loopctr5| 48), 10439#(<= |#Ultimate.C_memset_#t~loopctr5| 49), 10440#(<= |#Ultimate.C_memset_#t~loopctr5| 50), 10441#(not (= 80 |#Ultimate.C_memset_#amount|)), 10329#true, 10330#false] [2018-04-10 17:07:26,680 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 1275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:26,680 INFO L442 AbstractCegarLoop]: Interpolant automaton has 55 states [2018-04-10 17:07:26,680 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2018-04-10 17:07:26,681 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1381, Invalid=1589, Unknown=0, NotChecked=0, Total=2970 [2018-04-10 17:07:26,681 INFO L87 Difference]: Start difference. First operand 68 states and 68 transitions. Second operand 55 states. [2018-04-10 17:07:27,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:27,621 INFO L93 Difference]: Finished difference Result 71 states and 71 transitions. [2018-04-10 17:07:27,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2018-04-10 17:07:27,621 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 67 [2018-04-10 17:07:27,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:27,621 INFO L225 Difference]: With dead ends: 71 [2018-04-10 17:07:27,621 INFO L226 Difference]: Without dead ends: 69 [2018-04-10 17:07:27,622 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1374 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=4139, Invalid=7203, Unknown=0, NotChecked=0, Total=11342 [2018-04-10 17:07:27,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-04-10 17:07:27,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2018-04-10 17:07:27,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-04-10 17:07:27,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 69 transitions. [2018-04-10 17:07:27,623 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 69 transitions. Word has length 67 [2018-04-10 17:07:27,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:27,623 INFO L459 AbstractCegarLoop]: Abstraction has 69 states and 69 transitions. [2018-04-10 17:07:27,623 INFO L460 AbstractCegarLoop]: Interpolant automaton has 55 states. [2018-04-10 17:07:27,623 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 69 transitions. [2018-04-10 17:07:27,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-04-10 17:07:27,623 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:27,623 INFO L355 BasicCegarLoop]: trace histogram [51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:27,623 INFO L408 AbstractCegarLoop]: === Iteration 54 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:27,623 INFO L82 PathProgramCache]: Analyzing trace with hash 773137435, now seen corresponding path program 51 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:27,627 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:27,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:27,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:27,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:28,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 0 proven. 1326 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:28,320 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:28,320 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [56] total 56 [2018-04-10 17:07:28,320 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:28,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:28,321 INFO L182 omatonBuilderFactory]: Interpolants [10752#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 10753#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 10754#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 10755#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 10756#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 10757#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 10758#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 10759#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 10760#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 10761#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 10762#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 10763#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 10764#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 10765#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 10766#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 10767#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 10768#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 10769#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 10770#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 10771#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 10772#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 10773#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 10774#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 10775#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 10776#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 10777#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 10778#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 10779#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 10780#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 10781#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 10782#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 10783#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 10784#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 10785#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 10786#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 10787#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 10788#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 10789#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 10790#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 10791#(<= |#Ultimate.C_memset_#t~loopctr5| 43), 10792#(<= |#Ultimate.C_memset_#t~loopctr5| 44), 10793#(<= |#Ultimate.C_memset_#t~loopctr5| 45), 10794#(<= |#Ultimate.C_memset_#t~loopctr5| 46), 10795#(<= |#Ultimate.C_memset_#t~loopctr5| 47), 10796#(<= |#Ultimate.C_memset_#t~loopctr5| 48), 10797#(<= |#Ultimate.C_memset_#t~loopctr5| 49), 10798#(<= |#Ultimate.C_memset_#t~loopctr5| 50), 10799#(<= |#Ultimate.C_memset_#t~loopctr5| 51), 10800#(not (= 80 |#Ultimate.C_memset_#amount|)), 10686#true, 10687#false, 10747#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 10748#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 10749#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 10750#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 10751#(<= |#Ultimate.C_memset_#t~loopctr5| 3)] [2018-04-10 17:07:28,321 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 0 proven. 1326 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:28,321 INFO L442 AbstractCegarLoop]: Interpolant automaton has 56 states [2018-04-10 17:07:28,321 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2018-04-10 17:07:28,321 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1434, Invalid=1646, Unknown=0, NotChecked=0, Total=3080 [2018-04-10 17:07:28,321 INFO L87 Difference]: Start difference. First operand 69 states and 69 transitions. Second operand 56 states. [2018-04-10 17:07:29,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:29,271 INFO L93 Difference]: Finished difference Result 72 states and 72 transitions. [2018-04-10 17:07:29,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2018-04-10 17:07:29,271 INFO L78 Accepts]: Start accepts. Automaton has 56 states. Word has length 68 [2018-04-10 17:07:29,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:29,271 INFO L225 Difference]: With dead ends: 72 [2018-04-10 17:07:29,271 INFO L226 Difference]: Without dead ends: 70 [2018-04-10 17:07:29,272 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1427 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=4298, Invalid=7474, Unknown=0, NotChecked=0, Total=11772 [2018-04-10 17:07:29,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-04-10 17:07:29,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2018-04-10 17:07:29,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-04-10 17:07:29,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 70 transitions. [2018-04-10 17:07:29,273 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 70 transitions. Word has length 68 [2018-04-10 17:07:29,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:29,273 INFO L459 AbstractCegarLoop]: Abstraction has 70 states and 70 transitions. [2018-04-10 17:07:29,274 INFO L460 AbstractCegarLoop]: Interpolant automaton has 56 states. [2018-04-10 17:07:29,274 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 70 transitions. [2018-04-10 17:07:29,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-04-10 17:07:29,274 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:29,274 INFO L355 BasicCegarLoop]: trace histogram [52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:29,274 INFO L408 AbstractCegarLoop]: === Iteration 55 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:29,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1879517500, now seen corresponding path program 52 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:29,277 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:29,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:29,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:29,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:30,000 INFO L134 CoverageAnalysis]: Checked inductivity of 1378 backedges. 0 proven. 1378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:30,017 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:30,017 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [57] total 57 [2018-04-10 17:07:30,017 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:30,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:30,017 INFO L182 omatonBuilderFactory]: Interpolants [11136#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 11137#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 11138#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 11139#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 11140#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 11141#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 11142#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 11143#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 11144#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 11145#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 11146#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 11147#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 11148#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 11149#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 11150#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 11151#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 11152#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 11153#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 11154#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 11155#(<= |#Ultimate.C_memset_#t~loopctr5| 43), 11156#(<= |#Ultimate.C_memset_#t~loopctr5| 44), 11157#(<= |#Ultimate.C_memset_#t~loopctr5| 45), 11158#(<= |#Ultimate.C_memset_#t~loopctr5| 46), 11159#(<= |#Ultimate.C_memset_#t~loopctr5| 47), 11160#(<= |#Ultimate.C_memset_#t~loopctr5| 48), 11161#(<= |#Ultimate.C_memset_#t~loopctr5| 49), 11162#(<= |#Ultimate.C_memset_#t~loopctr5| 50), 11163#(<= |#Ultimate.C_memset_#t~loopctr5| 51), 11164#(<= |#Ultimate.C_memset_#t~loopctr5| 52), 11165#(not (= 80 |#Ultimate.C_memset_#amount|)), 11049#true, 11050#false, 11111#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 11112#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 11113#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 11114#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 11115#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 11116#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 11117#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 11118#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 11119#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 11120#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 11121#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 11122#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 11123#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 11124#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 11125#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 11126#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 11127#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 11128#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 11129#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 11130#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 11131#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 11132#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 11133#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 11134#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 11135#(<= |#Ultimate.C_memset_#t~loopctr5| 23)] [2018-04-10 17:07:30,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1378 backedges. 0 proven. 1378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:30,018 INFO L442 AbstractCegarLoop]: Interpolant automaton has 57 states [2018-04-10 17:07:30,018 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2018-04-10 17:07:30,018 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1488, Invalid=1704, Unknown=0, NotChecked=0, Total=3192 [2018-04-10 17:07:30,018 INFO L87 Difference]: Start difference. First operand 70 states and 70 transitions. Second operand 57 states. [2018-04-10 17:07:31,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:31,000 INFO L93 Difference]: Finished difference Result 73 states and 73 transitions. [2018-04-10 17:07:31,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2018-04-10 17:07:31,001 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 69 [2018-04-10 17:07:31,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:31,001 INFO L225 Difference]: With dead ends: 73 [2018-04-10 17:07:31,001 INFO L226 Difference]: Without dead ends: 71 [2018-04-10 17:07:31,002 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1481 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=4460, Invalid=7750, Unknown=0, NotChecked=0, Total=12210 [2018-04-10 17:07:31,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-04-10 17:07:31,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2018-04-10 17:07:31,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-04-10 17:07:31,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 71 transitions. [2018-04-10 17:07:31,004 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 71 transitions. Word has length 69 [2018-04-10 17:07:31,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:31,004 INFO L459 AbstractCegarLoop]: Abstraction has 71 states and 71 transitions. [2018-04-10 17:07:31,004 INFO L460 AbstractCegarLoop]: Interpolant automaton has 57 states. [2018-04-10 17:07:31,004 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 71 transitions. [2018-04-10 17:07:31,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-04-10 17:07:31,004 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:31,004 INFO L355 BasicCegarLoop]: trace histogram [53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:31,004 INFO L408 AbstractCegarLoop]: === Iteration 56 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:31,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1817561147, now seen corresponding path program 53 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:31,006 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:31,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:31,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:31,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:31,716 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 0 proven. 1431 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:31,733 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:31,733 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [58] total 58 [2018-04-10 17:07:31,733 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:31,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:31,733 INFO L182 omatonBuilderFactory]: Interpolants [11520#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 11521#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 11522#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 11523#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 11524#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 11525#(<= |#Ultimate.C_memset_#t~loopctr5| 43), 11526#(<= |#Ultimate.C_memset_#t~loopctr5| 44), 11527#(<= |#Ultimate.C_memset_#t~loopctr5| 45), 11528#(<= |#Ultimate.C_memset_#t~loopctr5| 46), 11529#(<= |#Ultimate.C_memset_#t~loopctr5| 47), 11530#(<= |#Ultimate.C_memset_#t~loopctr5| 48), 11531#(<= |#Ultimate.C_memset_#t~loopctr5| 49), 11532#(<= |#Ultimate.C_memset_#t~loopctr5| 50), 11533#(<= |#Ultimate.C_memset_#t~loopctr5| 51), 11534#(<= |#Ultimate.C_memset_#t~loopctr5| 52), 11535#(<= |#Ultimate.C_memset_#t~loopctr5| 53), 11536#(not (= 80 |#Ultimate.C_memset_#amount|)), 11418#true, 11419#false, 11481#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 11482#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 11483#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 11484#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 11485#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 11486#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 11487#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 11488#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 11489#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 11490#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 11491#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 11492#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 11493#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 11494#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 11495#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 11496#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 11497#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 11498#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 11499#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 11500#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 11501#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 11502#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 11503#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 11504#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 11505#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 11506#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 11507#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 11508#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 11509#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 11510#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 11511#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 11512#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 11513#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 11514#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 11515#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 11516#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 11517#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 11518#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 11519#(<= |#Ultimate.C_memset_#t~loopctr5| 37)] [2018-04-10 17:07:31,734 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 0 proven. 1431 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:31,734 INFO L442 AbstractCegarLoop]: Interpolant automaton has 58 states [2018-04-10 17:07:31,734 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2018-04-10 17:07:31,734 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1543, Invalid=1763, Unknown=0, NotChecked=0, Total=3306 [2018-04-10 17:07:31,734 INFO L87 Difference]: Start difference. First operand 71 states and 71 transitions. Second operand 58 states. [2018-04-10 17:07:32,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:32,720 INFO L93 Difference]: Finished difference Result 74 states and 74 transitions. [2018-04-10 17:07:32,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2018-04-10 17:07:32,752 INFO L78 Accepts]: Start accepts. Automaton has 58 states. Word has length 70 [2018-04-10 17:07:32,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:32,752 INFO L225 Difference]: With dead ends: 74 [2018-04-10 17:07:32,752 INFO L226 Difference]: Without dead ends: 72 [2018-04-10 17:07:32,753 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1536 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=4625, Invalid=8031, Unknown=0, NotChecked=0, Total=12656 [2018-04-10 17:07:32,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-04-10 17:07:32,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2018-04-10 17:07:32,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-04-10 17:07:32,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 72 transitions. [2018-04-10 17:07:32,754 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 72 transitions. Word has length 70 [2018-04-10 17:07:32,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:32,754 INFO L459 AbstractCegarLoop]: Abstraction has 72 states and 72 transitions. [2018-04-10 17:07:32,754 INFO L460 AbstractCegarLoop]: Interpolant automaton has 58 states. [2018-04-10 17:07:32,754 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 72 transitions. [2018-04-10 17:07:32,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-04-10 17:07:32,754 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:32,754 INFO L355 BasicCegarLoop]: trace histogram [54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:32,754 INFO L408 AbstractCegarLoop]: === Iteration 57 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:32,755 INFO L82 PathProgramCache]: Analyzing trace with hash -103085796, now seen corresponding path program 54 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:32,757 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:32,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:32,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:32,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:33,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1485 backedges. 0 proven. 1485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:33,527 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:33,527 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [59] total 59 [2018-04-10 17:07:33,527 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:33,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:33,528 INFO L182 omatonBuilderFactory]: Interpolants [11904#(<= |#Ultimate.C_memset_#t~loopctr5| 46), 11905#(<= |#Ultimate.C_memset_#t~loopctr5| 47), 11906#(<= |#Ultimate.C_memset_#t~loopctr5| 48), 11907#(<= |#Ultimate.C_memset_#t~loopctr5| 49), 11908#(<= |#Ultimate.C_memset_#t~loopctr5| 50), 11909#(<= |#Ultimate.C_memset_#t~loopctr5| 51), 11910#(<= |#Ultimate.C_memset_#t~loopctr5| 52), 11911#(<= |#Ultimate.C_memset_#t~loopctr5| 53), 11912#(<= |#Ultimate.C_memset_#t~loopctr5| 54), 11913#(not (= 80 |#Ultimate.C_memset_#amount|)), 11793#true, 11794#false, 11857#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 11858#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 11859#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 11860#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 11861#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 11862#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 11863#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 11864#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 11865#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 11866#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 11867#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 11868#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 11869#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 11870#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 11871#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 11872#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 11873#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 11874#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 11875#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 11876#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 11877#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 11878#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 11879#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 11880#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 11881#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 11882#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 11883#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 11884#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 11885#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 11886#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 11887#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 11888#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 11889#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 11890#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 11891#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 11892#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 11893#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 11894#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 11895#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 11896#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 11897#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 11898#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 11899#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 11900#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 11901#(<= |#Ultimate.C_memset_#t~loopctr5| 43), 11902#(<= |#Ultimate.C_memset_#t~loopctr5| 44), 11903#(<= |#Ultimate.C_memset_#t~loopctr5| 45)] [2018-04-10 17:07:33,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1485 backedges. 0 proven. 1485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:33,528 INFO L442 AbstractCegarLoop]: Interpolant automaton has 59 states [2018-04-10 17:07:33,528 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2018-04-10 17:07:33,529 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1599, Invalid=1823, Unknown=0, NotChecked=0, Total=3422 [2018-04-10 17:07:33,529 INFO L87 Difference]: Start difference. First operand 72 states and 72 transitions. Second operand 59 states. [2018-04-10 17:07:34,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:34,570 INFO L93 Difference]: Finished difference Result 75 states and 75 transitions. [2018-04-10 17:07:34,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2018-04-10 17:07:34,570 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 71 [2018-04-10 17:07:34,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:34,571 INFO L225 Difference]: With dead ends: 75 [2018-04-10 17:07:34,571 INFO L226 Difference]: Without dead ends: 73 [2018-04-10 17:07:34,571 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1592 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=4793, Invalid=8317, Unknown=0, NotChecked=0, Total=13110 [2018-04-10 17:07:34,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-04-10 17:07:34,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2018-04-10 17:07:34,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-04-10 17:07:34,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 73 transitions. [2018-04-10 17:07:34,573 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 73 transitions. Word has length 71 [2018-04-10 17:07:34,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:34,573 INFO L459 AbstractCegarLoop]: Abstraction has 73 states and 73 transitions. [2018-04-10 17:07:34,573 INFO L460 AbstractCegarLoop]: Interpolant automaton has 59 states. [2018-04-10 17:07:34,573 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 73 transitions. [2018-04-10 17:07:34,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-04-10 17:07:34,573 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:34,573 INFO L355 BasicCegarLoop]: trace histogram [55, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:34,573 INFO L408 AbstractCegarLoop]: === Iteration 58 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:34,574 INFO L82 PathProgramCache]: Analyzing trace with hash 486401115, now seen corresponding path program 55 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:34,576 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:34,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:34,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:34,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:35,316 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 0 proven. 1540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:35,333 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:35,333 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [60] total 60 [2018-04-10 17:07:35,333 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:35,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:35,333 INFO L182 omatonBuilderFactory]: Interpolants [12288#(<= |#Ultimate.C_memset_#t~loopctr5| 48), 12289#(<= |#Ultimate.C_memset_#t~loopctr5| 49), 12290#(<= |#Ultimate.C_memset_#t~loopctr5| 50), 12291#(<= |#Ultimate.C_memset_#t~loopctr5| 51), 12292#(<= |#Ultimate.C_memset_#t~loopctr5| 52), 12293#(<= |#Ultimate.C_memset_#t~loopctr5| 53), 12294#(<= |#Ultimate.C_memset_#t~loopctr5| 54), 12295#(<= |#Ultimate.C_memset_#t~loopctr5| 55), 12296#(not (= 80 |#Ultimate.C_memset_#amount|)), 12174#true, 12175#false, 12239#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 12240#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 12241#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 12242#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 12243#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 12244#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 12245#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 12246#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 12247#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 12248#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 12249#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 12250#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 12251#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 12252#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 12253#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 12254#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 12255#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 12256#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 12257#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 12258#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 12259#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 12260#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 12261#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 12262#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 12263#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 12264#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 12265#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 12266#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 12267#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 12268#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 12269#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 12270#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 12271#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 12272#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 12273#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 12274#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 12275#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 12276#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 12277#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 12278#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 12279#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 12280#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 12281#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 12282#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 12283#(<= |#Ultimate.C_memset_#t~loopctr5| 43), 12284#(<= |#Ultimate.C_memset_#t~loopctr5| 44), 12285#(<= |#Ultimate.C_memset_#t~loopctr5| 45), 12286#(<= |#Ultimate.C_memset_#t~loopctr5| 46), 12287#(<= |#Ultimate.C_memset_#t~loopctr5| 47)] [2018-04-10 17:07:35,333 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 0 proven. 1540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:35,333 INFO L442 AbstractCegarLoop]: Interpolant automaton has 60 states [2018-04-10 17:07:35,334 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2018-04-10 17:07:35,334 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1656, Invalid=1884, Unknown=0, NotChecked=0, Total=3540 [2018-04-10 17:07:35,334 INFO L87 Difference]: Start difference. First operand 73 states and 73 transitions. Second operand 60 states. [2018-04-10 17:07:36,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:36,359 INFO L93 Difference]: Finished difference Result 76 states and 76 transitions. [2018-04-10 17:07:36,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2018-04-10 17:07:36,359 INFO L78 Accepts]: Start accepts. Automaton has 60 states. Word has length 72 [2018-04-10 17:07:36,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:36,359 INFO L225 Difference]: With dead ends: 76 [2018-04-10 17:07:36,359 INFO L226 Difference]: Without dead ends: 74 [2018-04-10 17:07:36,360 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1649 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=4964, Invalid=8608, Unknown=0, NotChecked=0, Total=13572 [2018-04-10 17:07:36,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-04-10 17:07:36,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-04-10 17:07:36,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-04-10 17:07:36,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 74 transitions. [2018-04-10 17:07:36,361 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 74 transitions. Word has length 72 [2018-04-10 17:07:36,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:36,361 INFO L459 AbstractCegarLoop]: Abstraction has 74 states and 74 transitions. [2018-04-10 17:07:36,361 INFO L460 AbstractCegarLoop]: Interpolant automaton has 60 states. [2018-04-10 17:07:36,361 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 74 transitions. [2018-04-10 17:07:36,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-04-10 17:07:36,361 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:36,361 INFO L355 BasicCegarLoop]: trace histogram [56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:36,361 INFO L408 AbstractCegarLoop]: === Iteration 59 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:36,361 INFO L82 PathProgramCache]: Analyzing trace with hash 1580626172, now seen corresponding path program 56 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:36,363 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:36,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:36,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:37,158 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 0 proven. 1596 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:37,174 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:37,174 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [61] total 61 [2018-04-10 17:07:37,174 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:37,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:37,175 INFO L182 omatonBuilderFactory]: Interpolants [12672#(<= |#Ultimate.C_memset_#t~loopctr5| 44), 12673#(<= |#Ultimate.C_memset_#t~loopctr5| 45), 12674#(<= |#Ultimate.C_memset_#t~loopctr5| 46), 12675#(<= |#Ultimate.C_memset_#t~loopctr5| 47), 12676#(<= |#Ultimate.C_memset_#t~loopctr5| 48), 12677#(<= |#Ultimate.C_memset_#t~loopctr5| 49), 12678#(<= |#Ultimate.C_memset_#t~loopctr5| 50), 12679#(<= |#Ultimate.C_memset_#t~loopctr5| 51), 12680#(<= |#Ultimate.C_memset_#t~loopctr5| 52), 12681#(<= |#Ultimate.C_memset_#t~loopctr5| 53), 12682#(<= |#Ultimate.C_memset_#t~loopctr5| 54), 12683#(<= |#Ultimate.C_memset_#t~loopctr5| 55), 12684#(<= |#Ultimate.C_memset_#t~loopctr5| 56), 12685#(not (= 80 |#Ultimate.C_memset_#amount|)), 12561#true, 12562#false, 12627#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 12628#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 12629#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 12630#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 12631#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 12632#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 12633#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 12634#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 12635#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 12636#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 12637#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 12638#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 12639#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 12640#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 12641#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 12642#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 12643#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 12644#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 12645#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 12646#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 12647#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 12648#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 12649#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 12650#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 12651#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 12652#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 12653#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 12654#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 12655#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 12656#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 12657#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 12658#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 12659#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 12660#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 12661#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 12662#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 12663#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 12664#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 12665#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 12666#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 12667#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 12668#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 12669#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 12670#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 12671#(<= |#Ultimate.C_memset_#t~loopctr5| 43)] [2018-04-10 17:07:37,175 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 0 proven. 1596 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:37,175 INFO L442 AbstractCegarLoop]: Interpolant automaton has 61 states [2018-04-10 17:07:37,175 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2018-04-10 17:07:37,175 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1714, Invalid=1946, Unknown=0, NotChecked=0, Total=3660 [2018-04-10 17:07:37,175 INFO L87 Difference]: Start difference. First operand 74 states and 74 transitions. Second operand 61 states. [2018-04-10 17:07:38,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:38,265 INFO L93 Difference]: Finished difference Result 77 states and 77 transitions. [2018-04-10 17:07:38,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2018-04-10 17:07:38,265 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 73 [2018-04-10 17:07:38,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:38,265 INFO L225 Difference]: With dead ends: 77 [2018-04-10 17:07:38,265 INFO L226 Difference]: Without dead ends: 75 [2018-04-10 17:07:38,266 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1707 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=5138, Invalid=8904, Unknown=0, NotChecked=0, Total=14042 [2018-04-10 17:07:38,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-04-10 17:07:38,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2018-04-10 17:07:38,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-04-10 17:07:38,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 75 transitions. [2018-04-10 17:07:38,267 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 75 transitions. Word has length 73 [2018-04-10 17:07:38,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:38,267 INFO L459 AbstractCegarLoop]: Abstraction has 75 states and 75 transitions. [2018-04-10 17:07:38,267 INFO L460 AbstractCegarLoop]: Interpolant automaton has 61 states. [2018-04-10 17:07:38,268 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 75 transitions. [2018-04-10 17:07:38,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-04-10 17:07:38,268 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:38,268 INFO L355 BasicCegarLoop]: trace histogram [57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:38,268 INFO L408 AbstractCegarLoop]: === Iteration 60 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:38,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1141864571, now seen corresponding path program 57 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) [2018-04-10 17:07:38,271 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:38,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:38,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:38,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:39,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1653 backedges. 0 proven. 1653 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:39,234 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:39,234 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [62] total 62 [2018-04-10 17:07:39,234 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:39,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:39,235 INFO L182 omatonBuilderFactory]: Interpolants [13056#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 13057#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 13058#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 13059#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 13060#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 13061#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 13062#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 13063#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 13064#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 13065#(<= |#Ultimate.C_memset_#t~loopctr5| 43), 13066#(<= |#Ultimate.C_memset_#t~loopctr5| 44), 13067#(<= |#Ultimate.C_memset_#t~loopctr5| 45), 13068#(<= |#Ultimate.C_memset_#t~loopctr5| 46), 13069#(<= |#Ultimate.C_memset_#t~loopctr5| 47), 13070#(<= |#Ultimate.C_memset_#t~loopctr5| 48), 13071#(<= |#Ultimate.C_memset_#t~loopctr5| 49), 13072#(<= |#Ultimate.C_memset_#t~loopctr5| 50), 13073#(<= |#Ultimate.C_memset_#t~loopctr5| 51), 13074#(<= |#Ultimate.C_memset_#t~loopctr5| 52), 13075#(<= |#Ultimate.C_memset_#t~loopctr5| 53), 13076#(<= |#Ultimate.C_memset_#t~loopctr5| 54), 13077#(<= |#Ultimate.C_memset_#t~loopctr5| 55), 13078#(<= |#Ultimate.C_memset_#t~loopctr5| 56), 13079#(<= |#Ultimate.C_memset_#t~loopctr5| 57), 13080#(not (= 80 |#Ultimate.C_memset_#amount|)), 12954#true, 12955#false, 13021#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 13022#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 13023#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 13024#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 13025#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 13026#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 13027#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 13028#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 13029#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 13030#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 13031#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 13032#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 13033#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 13034#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 13035#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 13036#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 13037#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 13038#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 13039#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 13040#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 13041#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 13042#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 13043#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 13044#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 13045#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 13046#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 13047#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 13048#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 13049#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 13050#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 13051#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 13052#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 13053#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 13054#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 13055#(<= |#Ultimate.C_memset_#t~loopctr5| 33)] [2018-04-10 17:07:39,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1653 backedges. 0 proven. 1653 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:39,235 INFO L442 AbstractCegarLoop]: Interpolant automaton has 62 states [2018-04-10 17:07:39,235 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2018-04-10 17:07:39,235 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1773, Invalid=2009, Unknown=0, NotChecked=0, Total=3782 [2018-04-10 17:07:39,235 INFO L87 Difference]: Start difference. First operand 75 states and 75 transitions. Second operand 62 states. [2018-04-10 17:07:40,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:40,304 INFO L93 Difference]: Finished difference Result 78 states and 78 transitions. [2018-04-10 17:07:40,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2018-04-10 17:07:40,304 INFO L78 Accepts]: Start accepts. Automaton has 62 states. Word has length 74 [2018-04-10 17:07:40,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:40,304 INFO L225 Difference]: With dead ends: 78 [2018-04-10 17:07:40,304 INFO L226 Difference]: Without dead ends: 76 [2018-04-10 17:07:40,305 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1766 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=5315, Invalid=9205, Unknown=0, NotChecked=0, Total=14520 [2018-04-10 17:07:40,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-04-10 17:07:40,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2018-04-10 17:07:40,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-04-10 17:07:40,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 76 transitions. [2018-04-10 17:07:40,307 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 76 transitions. Word has length 74 [2018-04-10 17:07:40,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:40,307 INFO L459 AbstractCegarLoop]: Abstraction has 76 states and 76 transitions. [2018-04-10 17:07:40,308 INFO L460 AbstractCegarLoop]: Interpolant automaton has 62 states. [2018-04-10 17:07:40,308 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 76 transitions. [2018-04-10 17:07:40,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-04-10 17:07:40,308 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:40,308 INFO L355 BasicCegarLoop]: trace histogram [58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:40,308 INFO L408 AbstractCegarLoop]: === Iteration 61 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:40,308 INFO L82 PathProgramCache]: Analyzing trace with hash 425156828, now seen corresponding path program 58 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:40,310 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:40,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:40,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:40,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:41,132 INFO L134 CoverageAnalysis]: Checked inductivity of 1711 backedges. 0 proven. 1711 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:41,148 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:41,148 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [63] total 63 [2018-04-10 17:07:41,148 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:41,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:41,148 INFO L182 omatonBuilderFactory]: Interpolants [13440#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 13441#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 13442#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 13443#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 13444#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 13445#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 13446#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 13447#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 13448#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 13449#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 13450#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 13451#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 13452#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 13453#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 13454#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 13455#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 13456#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 13457#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 13458#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 13459#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 13460#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 13461#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 13462#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 13463#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 13464#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 13465#(<= |#Ultimate.C_memset_#t~loopctr5| 43), 13466#(<= |#Ultimate.C_memset_#t~loopctr5| 44), 13467#(<= |#Ultimate.C_memset_#t~loopctr5| 45), 13468#(<= |#Ultimate.C_memset_#t~loopctr5| 46), 13469#(<= |#Ultimate.C_memset_#t~loopctr5| 47), 13470#(<= |#Ultimate.C_memset_#t~loopctr5| 48), 13471#(<= |#Ultimate.C_memset_#t~loopctr5| 49), 13472#(<= |#Ultimate.C_memset_#t~loopctr5| 50), 13473#(<= |#Ultimate.C_memset_#t~loopctr5| 51), 13474#(<= |#Ultimate.C_memset_#t~loopctr5| 52), 13475#(<= |#Ultimate.C_memset_#t~loopctr5| 53), 13476#(<= |#Ultimate.C_memset_#t~loopctr5| 54), 13477#(<= |#Ultimate.C_memset_#t~loopctr5| 55), 13478#(<= |#Ultimate.C_memset_#t~loopctr5| 56), 13479#(<= |#Ultimate.C_memset_#t~loopctr5| 57), 13480#(<= |#Ultimate.C_memset_#t~loopctr5| 58), 13353#true, 13481#(not (= 80 |#Ultimate.C_memset_#amount|)), 13354#false, 13421#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 13422#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 13423#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 13424#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 13425#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 13426#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 13427#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 13428#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 13429#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 13430#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 13431#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 13432#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 13433#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 13434#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 13435#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 13436#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 13437#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 13438#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 13439#(<= |#Ultimate.C_memset_#t~loopctr5| 17)] [2018-04-10 17:07:41,149 INFO L134 CoverageAnalysis]: Checked inductivity of 1711 backedges. 0 proven. 1711 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:41,149 INFO L442 AbstractCegarLoop]: Interpolant automaton has 63 states [2018-04-10 17:07:41,149 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2018-04-10 17:07:41,149 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1833, Invalid=2073, Unknown=0, NotChecked=0, Total=3906 [2018-04-10 17:07:41,150 INFO L87 Difference]: Start difference. First operand 76 states and 76 transitions. Second operand 63 states. [2018-04-10 17:07:42,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:42,331 INFO L93 Difference]: Finished difference Result 79 states and 79 transitions. [2018-04-10 17:07:42,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2018-04-10 17:07:42,331 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 75 [2018-04-10 17:07:42,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:42,332 INFO L225 Difference]: With dead ends: 79 [2018-04-10 17:07:42,332 INFO L226 Difference]: Without dead ends: 77 [2018-04-10 17:07:42,332 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1826 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=5495, Invalid=9511, Unknown=0, NotChecked=0, Total=15006 [2018-04-10 17:07:42,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-04-10 17:07:42,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2018-04-10 17:07:42,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-04-10 17:07:42,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 77 transitions. [2018-04-10 17:07:42,333 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 77 transitions. Word has length 75 [2018-04-10 17:07:42,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:42,333 INFO L459 AbstractCegarLoop]: Abstraction has 77 states and 77 transitions. [2018-04-10 17:07:42,333 INFO L460 AbstractCegarLoop]: Interpolant automaton has 63 states. [2018-04-10 17:07:42,333 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 77 transitions. [2018-04-10 17:07:42,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-04-10 17:07:42,333 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:42,334 INFO L355 BasicCegarLoop]: trace histogram [59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:42,334 INFO L408 AbstractCegarLoop]: === Iteration 62 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:42,334 INFO L82 PathProgramCache]: Analyzing trace with hash -317946725, now seen corresponding path program 59 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:42,336 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:42,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:42,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:43,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 0 proven. 1770 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:43,208 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:43,209 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [64] total 64 [2018-04-10 17:07:43,209 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:43,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:43,209 INFO L182 omatonBuilderFactory]: Interpolants [13827#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 13828#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 13829#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 13830#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 13831#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 13832#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 13833#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 13834#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 13835#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 13836#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 13837#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 13838#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 13839#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 13840#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 13841#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 13842#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 13843#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 13844#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 13845#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 13846#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 13847#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 13848#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 13849#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 13850#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 13851#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 13852#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 13853#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 13854#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 13855#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 13856#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 13857#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 13858#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 13859#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 13860#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 13861#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 13862#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 13863#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 13864#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 13865#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 13866#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 13867#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 13868#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 13869#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 13870#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 13871#(<= |#Ultimate.C_memset_#t~loopctr5| 43), 13872#(<= |#Ultimate.C_memset_#t~loopctr5| 44), 13873#(<= |#Ultimate.C_memset_#t~loopctr5| 45), 13874#(<= |#Ultimate.C_memset_#t~loopctr5| 46), 13875#(<= |#Ultimate.C_memset_#t~loopctr5| 47), 13876#(<= |#Ultimate.C_memset_#t~loopctr5| 48), 13877#(<= |#Ultimate.C_memset_#t~loopctr5| 49), 13878#(<= |#Ultimate.C_memset_#t~loopctr5| 50), 13879#(<= |#Ultimate.C_memset_#t~loopctr5| 51), 13880#(<= |#Ultimate.C_memset_#t~loopctr5| 52), 13881#(<= |#Ultimate.C_memset_#t~loopctr5| 53), 13882#(<= |#Ultimate.C_memset_#t~loopctr5| 54), 13883#(<= |#Ultimate.C_memset_#t~loopctr5| 55), 13884#(<= |#Ultimate.C_memset_#t~loopctr5| 56), 13885#(<= |#Ultimate.C_memset_#t~loopctr5| 57), 13758#true, 13886#(<= |#Ultimate.C_memset_#t~loopctr5| 58), 13759#false, 13887#(<= |#Ultimate.C_memset_#t~loopctr5| 59), 13888#(not (= 80 |#Ultimate.C_memset_#amount|))] [2018-04-10 17:07:43,209 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 0 proven. 1770 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:43,209 INFO L442 AbstractCegarLoop]: Interpolant automaton has 64 states [2018-04-10 17:07:43,209 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2018-04-10 17:07:43,210 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1894, Invalid=2138, Unknown=0, NotChecked=0, Total=4032 [2018-04-10 17:07:43,210 INFO L87 Difference]: Start difference. First operand 77 states and 77 transitions. Second operand 64 states. [2018-04-10 17:07:44,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:44,462 INFO L93 Difference]: Finished difference Result 80 states and 80 transitions. [2018-04-10 17:07:44,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2018-04-10 17:07:44,462 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 76 [2018-04-10 17:07:44,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:44,463 INFO L225 Difference]: With dead ends: 80 [2018-04-10 17:07:44,463 INFO L226 Difference]: Without dead ends: 78 [2018-04-10 17:07:44,463 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1887 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=5678, Invalid=9822, Unknown=0, NotChecked=0, Total=15500 [2018-04-10 17:07:44,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-04-10 17:07:44,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2018-04-10 17:07:44,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2018-04-10 17:07:44,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 78 transitions. [2018-04-10 17:07:44,464 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 78 transitions. Word has length 76 [2018-04-10 17:07:44,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:44,464 INFO L459 AbstractCegarLoop]: Abstraction has 78 states and 78 transitions. [2018-04-10 17:07:44,464 INFO L460 AbstractCegarLoop]: Interpolant automaton has 64 states. [2018-04-10 17:07:44,464 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 78 transitions. [2018-04-10 17:07:44,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-04-10 17:07:44,464 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:44,465 INFO L355 BasicCegarLoop]: trace histogram [60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:44,465 INFO L408 AbstractCegarLoop]: === Iteration 63 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:44,465 INFO L82 PathProgramCache]: Analyzing trace with hash -1879320388, now seen corresponding path program 60 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:44,467 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:44,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:44,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:44,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:45,357 INFO L134 CoverageAnalysis]: Checked inductivity of 1830 backedges. 0 proven. 1830 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:45,373 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:45,373 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [65] total 65 [2018-04-10 17:07:45,374 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:45,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:45,374 INFO L182 omatonBuilderFactory]: Interpolants [14239#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 14240#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 14241#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 14242#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 14243#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 14244#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 14245#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 14246#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 14247#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 14248#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 14249#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 14250#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 14251#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 14252#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 14253#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 14254#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 14255#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 14256#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 14257#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 14258#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 14259#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 14260#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 14261#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 14262#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 14263#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 14264#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 14265#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 14266#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 14267#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 14268#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 14269#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 14270#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 14271#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 14272#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 14273#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 14274#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 14275#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 14276#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 14277#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 14278#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 14279#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 14280#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 14281#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 14282#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 14283#(<= |#Ultimate.C_memset_#t~loopctr5| 43), 14284#(<= |#Ultimate.C_memset_#t~loopctr5| 44), 14285#(<= |#Ultimate.C_memset_#t~loopctr5| 45), 14286#(<= |#Ultimate.C_memset_#t~loopctr5| 46), 14287#(<= |#Ultimate.C_memset_#t~loopctr5| 47), 14288#(<= |#Ultimate.C_memset_#t~loopctr5| 48), 14289#(<= |#Ultimate.C_memset_#t~loopctr5| 49), 14290#(<= |#Ultimate.C_memset_#t~loopctr5| 50), 14291#(<= |#Ultimate.C_memset_#t~loopctr5| 51), 14292#(<= |#Ultimate.C_memset_#t~loopctr5| 52), 14293#(<= |#Ultimate.C_memset_#t~loopctr5| 53), 14294#(<= |#Ultimate.C_memset_#t~loopctr5| 54), 14295#(<= |#Ultimate.C_memset_#t~loopctr5| 55), 14296#(<= |#Ultimate.C_memset_#t~loopctr5| 56), 14169#true, 14297#(<= |#Ultimate.C_memset_#t~loopctr5| 57), 14170#false, 14298#(<= |#Ultimate.C_memset_#t~loopctr5| 58), 14299#(<= |#Ultimate.C_memset_#t~loopctr5| 59), 14300#(<= |#Ultimate.C_memset_#t~loopctr5| 60), 14301#(not (= 80 |#Ultimate.C_memset_#amount|))] [2018-04-10 17:07:45,374 INFO L134 CoverageAnalysis]: Checked inductivity of 1830 backedges. 0 proven. 1830 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:45,374 INFO L442 AbstractCegarLoop]: Interpolant automaton has 65 states [2018-04-10 17:07:45,374 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2018-04-10 17:07:45,374 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1956, Invalid=2204, Unknown=0, NotChecked=0, Total=4160 [2018-04-10 17:07:45,375 INFO L87 Difference]: Start difference. First operand 78 states and 78 transitions. Second operand 65 states. [2018-04-10 17:07:46,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:46,651 INFO L93 Difference]: Finished difference Result 81 states and 81 transitions. [2018-04-10 17:07:46,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2018-04-10 17:07:46,651 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 77 [2018-04-10 17:07:46,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:46,651 INFO L225 Difference]: With dead ends: 81 [2018-04-10 17:07:46,651 INFO L226 Difference]: Without dead ends: 79 [2018-04-10 17:07:46,652 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1949 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=5864, Invalid=10138, Unknown=0, NotChecked=0, Total=16002 [2018-04-10 17:07:46,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-04-10 17:07:46,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2018-04-10 17:07:46,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-04-10 17:07:46,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 79 transitions. [2018-04-10 17:07:46,653 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 79 transitions. Word has length 77 [2018-04-10 17:07:46,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:46,653 INFO L459 AbstractCegarLoop]: Abstraction has 79 states and 79 transitions. [2018-04-10 17:07:46,653 INFO L460 AbstractCegarLoop]: Interpolant automaton has 65 states. [2018-04-10 17:07:46,653 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 79 transitions. [2018-04-10 17:07:46,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-04-10 17:07:46,653 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:46,653 INFO L355 BasicCegarLoop]: trace histogram [61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:46,653 INFO L408 AbstractCegarLoop]: === Iteration 64 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:46,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1257703611, now seen corresponding path program 61 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:46,656 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:46,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:46,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:47,575 INFO L134 CoverageAnalysis]: Checked inductivity of 1891 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:47,591 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:47,592 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [66] total 66 [2018-04-10 17:07:47,592 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:47,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:47,592 INFO L182 omatonBuilderFactory]: Interpolants [14720#(not (= 80 |#Ultimate.C_memset_#amount|)), 14657#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 14658#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 14659#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 14660#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 14661#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 14662#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 14663#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 14664#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 14665#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 14666#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 14667#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 14668#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 14669#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 14670#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 14671#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 14672#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 14673#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 14674#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 14675#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 14676#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 14677#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 14678#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 14679#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 14680#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 14681#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 14682#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 14683#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 14684#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 14685#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 14686#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 14687#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 14688#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 14689#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 14690#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 14691#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 14692#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 14693#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 14694#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 14695#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 14696#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 14697#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 14698#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 14699#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 14700#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 14701#(<= |#Ultimate.C_memset_#t~loopctr5| 43), 14702#(<= |#Ultimate.C_memset_#t~loopctr5| 44), 14703#(<= |#Ultimate.C_memset_#t~loopctr5| 45), 14704#(<= |#Ultimate.C_memset_#t~loopctr5| 46), 14705#(<= |#Ultimate.C_memset_#t~loopctr5| 47), 14706#(<= |#Ultimate.C_memset_#t~loopctr5| 48), 14707#(<= |#Ultimate.C_memset_#t~loopctr5| 49), 14708#(<= |#Ultimate.C_memset_#t~loopctr5| 50), 14709#(<= |#Ultimate.C_memset_#t~loopctr5| 51), 14710#(<= |#Ultimate.C_memset_#t~loopctr5| 52), 14711#(<= |#Ultimate.C_memset_#t~loopctr5| 53), 14712#(<= |#Ultimate.C_memset_#t~loopctr5| 54), 14713#(<= |#Ultimate.C_memset_#t~loopctr5| 55), 14586#true, 14714#(<= |#Ultimate.C_memset_#t~loopctr5| 56), 14587#false, 14715#(<= |#Ultimate.C_memset_#t~loopctr5| 57), 14716#(<= |#Ultimate.C_memset_#t~loopctr5| 58), 14717#(<= |#Ultimate.C_memset_#t~loopctr5| 59), 14718#(<= |#Ultimate.C_memset_#t~loopctr5| 60), 14719#(<= |#Ultimate.C_memset_#t~loopctr5| 61)] [2018-04-10 17:07:47,592 INFO L134 CoverageAnalysis]: Checked inductivity of 1891 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:47,592 INFO L442 AbstractCegarLoop]: Interpolant automaton has 66 states [2018-04-10 17:07:47,593 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2018-04-10 17:07:47,593 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2019, Invalid=2271, Unknown=0, NotChecked=0, Total=4290 [2018-04-10 17:07:47,593 INFO L87 Difference]: Start difference. First operand 79 states and 79 transitions. Second operand 66 states. [2018-04-10 17:07:48,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:48,889 INFO L93 Difference]: Finished difference Result 82 states and 82 transitions. [2018-04-10 17:07:48,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2018-04-10 17:07:48,889 INFO L78 Accepts]: Start accepts. Automaton has 66 states. Word has length 78 [2018-04-10 17:07:48,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:48,890 INFO L225 Difference]: With dead ends: 82 [2018-04-10 17:07:48,890 INFO L226 Difference]: Without dead ends: 80 [2018-04-10 17:07:48,890 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2012 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=6053, Invalid=10459, Unknown=0, NotChecked=0, Total=16512 [2018-04-10 17:07:48,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-04-10 17:07:48,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2018-04-10 17:07:48,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-04-10 17:07:48,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 80 transitions. [2018-04-10 17:07:48,892 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 80 transitions. Word has length 78 [2018-04-10 17:07:48,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:48,892 INFO L459 AbstractCegarLoop]: Abstraction has 80 states and 80 transitions. [2018-04-10 17:07:48,892 INFO L460 AbstractCegarLoop]: Interpolant automaton has 66 states. [2018-04-10 17:07:48,892 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 80 transitions. [2018-04-10 17:07:48,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-04-10 17:07:48,892 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:48,892 INFO L355 BasicCegarLoop]: trace histogram [62, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:48,893 INFO L408 AbstractCegarLoop]: === Iteration 65 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:48,893 INFO L82 PathProgramCache]: Analyzing trace with hash -278800228, now seen corresponding path program 62 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:48,894 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:48,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:48,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:48,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:49,833 INFO L134 CoverageAnalysis]: Checked inductivity of 1953 backedges. 0 proven. 1953 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:49,849 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:49,849 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [67] total 67 [2018-04-10 17:07:49,849 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:49,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:49,849 INFO L182 omatonBuilderFactory]: Interpolants [15104#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 15105#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 15106#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 15107#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 15108#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 15109#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 15110#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 15111#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 15112#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 15113#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 15114#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 15115#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 15116#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 15117#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 15118#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 15119#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 15120#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 15121#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 15122#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 15123#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 15124#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 15125#(<= |#Ultimate.C_memset_#t~loopctr5| 43), 15126#(<= |#Ultimate.C_memset_#t~loopctr5| 44), 15127#(<= |#Ultimate.C_memset_#t~loopctr5| 45), 15128#(<= |#Ultimate.C_memset_#t~loopctr5| 46), 15129#(<= |#Ultimate.C_memset_#t~loopctr5| 47), 15130#(<= |#Ultimate.C_memset_#t~loopctr5| 48), 15131#(<= |#Ultimate.C_memset_#t~loopctr5| 49), 15132#(<= |#Ultimate.C_memset_#t~loopctr5| 50), 15133#(<= |#Ultimate.C_memset_#t~loopctr5| 51), 15134#(<= |#Ultimate.C_memset_#t~loopctr5| 52), 15135#(<= |#Ultimate.C_memset_#t~loopctr5| 53), 15136#(<= |#Ultimate.C_memset_#t~loopctr5| 54), 15009#true, 15137#(<= |#Ultimate.C_memset_#t~loopctr5| 55), 15010#false, 15138#(<= |#Ultimate.C_memset_#t~loopctr5| 56), 15139#(<= |#Ultimate.C_memset_#t~loopctr5| 57), 15140#(<= |#Ultimate.C_memset_#t~loopctr5| 58), 15141#(<= |#Ultimate.C_memset_#t~loopctr5| 59), 15142#(<= |#Ultimate.C_memset_#t~loopctr5| 60), 15143#(<= |#Ultimate.C_memset_#t~loopctr5| 61), 15144#(<= |#Ultimate.C_memset_#t~loopctr5| 62), 15145#(not (= 80 |#Ultimate.C_memset_#amount|)), 15081#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 15082#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 15083#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 15084#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 15085#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 15086#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 15087#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 15088#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 15089#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 15090#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 15091#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 15092#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 15093#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 15094#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 15095#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 15096#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 15097#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 15098#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 15099#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 15100#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 15101#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 15102#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 15103#(<= |#Ultimate.C_memset_#t~loopctr5| 21)] [2018-04-10 17:07:49,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1953 backedges. 0 proven. 1953 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:49,850 INFO L442 AbstractCegarLoop]: Interpolant automaton has 67 states [2018-04-10 17:07:49,850 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2018-04-10 17:07:49,850 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2083, Invalid=2339, Unknown=0, NotChecked=0, Total=4422 [2018-04-10 17:07:49,850 INFO L87 Difference]: Start difference. First operand 80 states and 80 transitions. Second operand 67 states. [2018-04-10 17:07:51,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:51,224 INFO L93 Difference]: Finished difference Result 83 states and 83 transitions. [2018-04-10 17:07:51,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2018-04-10 17:07:51,224 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 79 [2018-04-10 17:07:51,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:51,224 INFO L225 Difference]: With dead ends: 83 [2018-04-10 17:07:51,224 INFO L226 Difference]: Without dead ends: 81 [2018-04-10 17:07:51,225 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2076 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=6245, Invalid=10785, Unknown=0, NotChecked=0, Total=17030 [2018-04-10 17:07:51,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-04-10 17:07:51,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2018-04-10 17:07:51,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-04-10 17:07:51,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 81 transitions. [2018-04-10 17:07:51,226 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 81 transitions. Word has length 79 [2018-04-10 17:07:51,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:51,226 INFO L459 AbstractCegarLoop]: Abstraction has 81 states and 81 transitions. [2018-04-10 17:07:51,226 INFO L460 AbstractCegarLoop]: Interpolant automaton has 67 states. [2018-04-10 17:07:51,226 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 81 transitions. [2018-04-10 17:07:51,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-04-10 17:07:51,226 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:51,226 INFO L355 BasicCegarLoop]: trace histogram [63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:51,227 INFO L408 AbstractCegarLoop]: === Iteration 66 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:51,227 INFO L82 PathProgramCache]: Analyzing trace with hash -665778981, now seen corresponding path program 63 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:51,229 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:51,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:51,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:51,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:52,195 INFO L134 CoverageAnalysis]: Checked inductivity of 2016 backedges. 0 proven. 2016 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:52,210 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:52,210 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [68] total 68 [2018-04-10 17:07:52,210 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:52,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:52,210 INFO L182 omatonBuilderFactory]: Interpolants [15511#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 15512#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 15513#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 15514#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 15515#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 15516#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 15517#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 15518#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 15519#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 15520#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 15521#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 15522#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 15523#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 15524#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 15525#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 15526#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 15527#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 15528#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 15529#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 15530#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 15531#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 15532#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 15533#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 15534#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 15535#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 15536#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 15537#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 15538#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 15539#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 15540#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 15541#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 15542#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 15543#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 15544#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 15545#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 15546#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 15547#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 15548#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 15549#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 15550#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 15551#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 15552#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 15553#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 15554#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 15555#(<= |#Ultimate.C_memset_#t~loopctr5| 43), 15556#(<= |#Ultimate.C_memset_#t~loopctr5| 44), 15557#(<= |#Ultimate.C_memset_#t~loopctr5| 45), 15558#(<= |#Ultimate.C_memset_#t~loopctr5| 46), 15559#(<= |#Ultimate.C_memset_#t~loopctr5| 47), 15560#(<= |#Ultimate.C_memset_#t~loopctr5| 48), 15561#(<= |#Ultimate.C_memset_#t~loopctr5| 49), 15562#(<= |#Ultimate.C_memset_#t~loopctr5| 50), 15563#(<= |#Ultimate.C_memset_#t~loopctr5| 51), 15564#(<= |#Ultimate.C_memset_#t~loopctr5| 52), 15565#(<= |#Ultimate.C_memset_#t~loopctr5| 53), 15438#true, 15566#(<= |#Ultimate.C_memset_#t~loopctr5| 54), 15439#false, 15567#(<= |#Ultimate.C_memset_#t~loopctr5| 55), 15568#(<= |#Ultimate.C_memset_#t~loopctr5| 56), 15569#(<= |#Ultimate.C_memset_#t~loopctr5| 57), 15570#(<= |#Ultimate.C_memset_#t~loopctr5| 58), 15571#(<= |#Ultimate.C_memset_#t~loopctr5| 59), 15572#(<= |#Ultimate.C_memset_#t~loopctr5| 60), 15573#(<= |#Ultimate.C_memset_#t~loopctr5| 61), 15574#(<= |#Ultimate.C_memset_#t~loopctr5| 62), 15575#(<= |#Ultimate.C_memset_#t~loopctr5| 63), 15576#(not (= 80 |#Ultimate.C_memset_#amount|))] [2018-04-10 17:07:52,210 INFO L134 CoverageAnalysis]: Checked inductivity of 2016 backedges. 0 proven. 2016 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:52,211 INFO L442 AbstractCegarLoop]: Interpolant automaton has 68 states [2018-04-10 17:07:52,211 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2018-04-10 17:07:52,211 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2148, Invalid=2408, Unknown=0, NotChecked=0, Total=4556 [2018-04-10 17:07:52,211 INFO L87 Difference]: Start difference. First operand 81 states and 81 transitions. Second operand 68 states. [2018-04-10 17:07:53,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:53,584 INFO L93 Difference]: Finished difference Result 84 states and 84 transitions. [2018-04-10 17:07:53,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2018-04-10 17:07:53,584 INFO L78 Accepts]: Start accepts. Automaton has 68 states. Word has length 80 [2018-04-10 17:07:53,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:53,584 INFO L225 Difference]: With dead ends: 84 [2018-04-10 17:07:53,585 INFO L226 Difference]: Without dead ends: 82 [2018-04-10 17:07:53,585 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2141 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=6440, Invalid=11116, Unknown=0, NotChecked=0, Total=17556 [2018-04-10 17:07:53,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-04-10 17:07:53,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2018-04-10 17:07:53,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-04-10 17:07:53,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 82 transitions. [2018-04-10 17:07:53,587 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 82 transitions. Word has length 80 [2018-04-10 17:07:53,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:53,587 INFO L459 AbstractCegarLoop]: Abstraction has 82 states and 82 transitions. [2018-04-10 17:07:53,587 INFO L460 AbstractCegarLoop]: Interpolant automaton has 68 states. [2018-04-10 17:07:53,587 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 82 transitions. [2018-04-10 17:07:53,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-04-10 17:07:53,588 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:53,588 INFO L355 BasicCegarLoop]: trace histogram [64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:53,588 INFO L408 AbstractCegarLoop]: === Iteration 67 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:53,588 INFO L82 PathProgramCache]: Analyzing trace with hash 222781564, now seen corresponding path program 64 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:53,590 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:53,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:53,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:53,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:54,581 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 2080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:54,597 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:54,597 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [69] total 69 [2018-04-10 17:07:54,597 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:54,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:54,597 INFO L182 omatonBuilderFactory]: Interpolants [16000#(<= |#Ultimate.C_memset_#t~loopctr5| 52), 15873#true, 16001#(<= |#Ultimate.C_memset_#t~loopctr5| 53), 15874#false, 16002#(<= |#Ultimate.C_memset_#t~loopctr5| 54), 16003#(<= |#Ultimate.C_memset_#t~loopctr5| 55), 16004#(<= |#Ultimate.C_memset_#t~loopctr5| 56), 16005#(<= |#Ultimate.C_memset_#t~loopctr5| 57), 16006#(<= |#Ultimate.C_memset_#t~loopctr5| 58), 16007#(<= |#Ultimate.C_memset_#t~loopctr5| 59), 16008#(<= |#Ultimate.C_memset_#t~loopctr5| 60), 16009#(<= |#Ultimate.C_memset_#t~loopctr5| 61), 16010#(<= |#Ultimate.C_memset_#t~loopctr5| 62), 16011#(<= |#Ultimate.C_memset_#t~loopctr5| 63), 16012#(<= |#Ultimate.C_memset_#t~loopctr5| 64), 16013#(not (= 80 |#Ultimate.C_memset_#amount|)), 15947#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 15948#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 15949#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 15950#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 15951#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 15952#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 15953#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 15954#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 15955#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 15956#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 15957#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 15958#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 15959#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 15960#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 15961#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 15962#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 15963#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 15964#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 15965#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 15966#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 15967#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 15968#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 15969#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 15970#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 15971#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 15972#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 15973#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 15974#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 15975#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 15976#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 15977#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 15978#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 15979#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 15980#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 15981#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 15982#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 15983#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 15984#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 15985#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 15986#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 15987#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 15988#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 15989#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 15990#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 15991#(<= |#Ultimate.C_memset_#t~loopctr5| 43), 15992#(<= |#Ultimate.C_memset_#t~loopctr5| 44), 15993#(<= |#Ultimate.C_memset_#t~loopctr5| 45), 15994#(<= |#Ultimate.C_memset_#t~loopctr5| 46), 15995#(<= |#Ultimate.C_memset_#t~loopctr5| 47), 15996#(<= |#Ultimate.C_memset_#t~loopctr5| 48), 15997#(<= |#Ultimate.C_memset_#t~loopctr5| 49), 15998#(<= |#Ultimate.C_memset_#t~loopctr5| 50), 15999#(<= |#Ultimate.C_memset_#t~loopctr5| 51)] [2018-04-10 17:07:54,597 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 2080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:54,597 INFO L442 AbstractCegarLoop]: Interpolant automaton has 69 states [2018-04-10 17:07:54,598 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2018-04-10 17:07:54,598 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2214, Invalid=2478, Unknown=0, NotChecked=0, Total=4692 [2018-04-10 17:07:54,598 INFO L87 Difference]: Start difference. First operand 82 states and 82 transitions. Second operand 69 states. [2018-04-10 17:07:55,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:55,948 INFO L93 Difference]: Finished difference Result 85 states and 85 transitions. [2018-04-10 17:07:55,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2018-04-10 17:07:55,949 INFO L78 Accepts]: Start accepts. Automaton has 69 states. Word has length 81 [2018-04-10 17:07:55,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:55,949 INFO L225 Difference]: With dead ends: 85 [2018-04-10 17:07:55,949 INFO L226 Difference]: Without dead ends: 83 [2018-04-10 17:07:55,949 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2207 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=6638, Invalid=11452, Unknown=0, NotChecked=0, Total=18090 [2018-04-10 17:07:55,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-04-10 17:07:55,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2018-04-10 17:07:55,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-04-10 17:07:55,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 83 transitions. [2018-04-10 17:07:55,950 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 83 transitions. Word has length 81 [2018-04-10 17:07:55,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:55,951 INFO L459 AbstractCegarLoop]: Abstraction has 83 states and 83 transitions. [2018-04-10 17:07:55,951 INFO L460 AbstractCegarLoop]: Interpolant automaton has 69 states. [2018-04-10 17:07:55,951 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 83 transitions. [2018-04-10 17:07:55,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-04-10 17:07:55,951 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:55,951 INFO L355 BasicCegarLoop]: trace histogram [65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:55,951 INFO L408 AbstractCegarLoop]: === Iteration 68 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:55,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1998354683, now seen corresponding path program 65 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:55,953 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:55,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:56,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:56,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:56,957 INFO L134 CoverageAnalysis]: Checked inductivity of 2145 backedges. 0 proven. 2145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:56,973 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:56,973 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [70] total 70 [2018-04-10 17:07:56,973 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:56,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:56,974 INFO L182 omatonBuilderFactory]: Interpolants [16389#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 16390#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 16391#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 16392#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 16393#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 16394#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 16395#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 16396#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 16397#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 16398#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 16399#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 16400#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 16401#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 16402#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 16403#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 16404#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 16405#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 16406#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 16407#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 16408#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 16409#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 16410#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 16411#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 16412#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 16413#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 16414#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 16415#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 16416#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 16417#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 16418#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 16419#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 16420#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 16421#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 16422#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 16423#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 16424#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 16425#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 16426#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 16427#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 16428#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 16429#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 16430#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 16431#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 16432#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 16433#(<= |#Ultimate.C_memset_#t~loopctr5| 43), 16434#(<= |#Ultimate.C_memset_#t~loopctr5| 44), 16435#(<= |#Ultimate.C_memset_#t~loopctr5| 45), 16436#(<= |#Ultimate.C_memset_#t~loopctr5| 46), 16437#(<= |#Ultimate.C_memset_#t~loopctr5| 47), 16438#(<= |#Ultimate.C_memset_#t~loopctr5| 48), 16439#(<= |#Ultimate.C_memset_#t~loopctr5| 49), 16440#(<= |#Ultimate.C_memset_#t~loopctr5| 50), 16441#(<= |#Ultimate.C_memset_#t~loopctr5| 51), 16314#true, 16442#(<= |#Ultimate.C_memset_#t~loopctr5| 52), 16315#false, 16443#(<= |#Ultimate.C_memset_#t~loopctr5| 53), 16444#(<= |#Ultimate.C_memset_#t~loopctr5| 54), 16445#(<= |#Ultimate.C_memset_#t~loopctr5| 55), 16446#(<= |#Ultimate.C_memset_#t~loopctr5| 56), 16447#(<= |#Ultimate.C_memset_#t~loopctr5| 57), 16448#(<= |#Ultimate.C_memset_#t~loopctr5| 58), 16449#(<= |#Ultimate.C_memset_#t~loopctr5| 59), 16450#(<= |#Ultimate.C_memset_#t~loopctr5| 60), 16451#(<= |#Ultimate.C_memset_#t~loopctr5| 61), 16452#(<= |#Ultimate.C_memset_#t~loopctr5| 62), 16453#(<= |#Ultimate.C_memset_#t~loopctr5| 63), 16454#(<= |#Ultimate.C_memset_#t~loopctr5| 64), 16455#(<= |#Ultimate.C_memset_#t~loopctr5| 65), 16456#(not (= 80 |#Ultimate.C_memset_#amount|))] [2018-04-10 17:07:56,974 INFO L134 CoverageAnalysis]: Checked inductivity of 2145 backedges. 0 proven. 2145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:56,974 INFO L442 AbstractCegarLoop]: Interpolant automaton has 70 states [2018-04-10 17:07:56,974 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2018-04-10 17:07:56,974 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2281, Invalid=2549, Unknown=0, NotChecked=0, Total=4830 [2018-04-10 17:07:56,975 INFO L87 Difference]: Start difference. First operand 83 states and 83 transitions. Second operand 70 states. [2018-04-10 17:07:58,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:07:58,395 INFO L93 Difference]: Finished difference Result 86 states and 86 transitions. [2018-04-10 17:07:58,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2018-04-10 17:07:58,396 INFO L78 Accepts]: Start accepts. Automaton has 70 states. Word has length 82 [2018-04-10 17:07:58,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:07:58,396 INFO L225 Difference]: With dead ends: 86 [2018-04-10 17:07:58,396 INFO L226 Difference]: Without dead ends: 84 [2018-04-10 17:07:58,396 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2274 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=6839, Invalid=11793, Unknown=0, NotChecked=0, Total=18632 [2018-04-10 17:07:58,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-04-10 17:07:58,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2018-04-10 17:07:58,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-04-10 17:07:58,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 84 transitions. [2018-04-10 17:07:58,397 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 84 transitions. Word has length 82 [2018-04-10 17:07:58,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:07:58,398 INFO L459 AbstractCegarLoop]: Abstraction has 84 states and 84 transitions. [2018-04-10 17:07:58,398 INFO L460 AbstractCegarLoop]: Interpolant automaton has 70 states. [2018-04-10 17:07:58,398 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 84 transitions. [2018-04-10 17:07:58,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-04-10 17:07:58,398 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:07:58,398 INFO L355 BasicCegarLoop]: trace histogram [66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:07:58,398 INFO L408 AbstractCegarLoop]: === Iteration 69 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:07:58,398 INFO L82 PathProgramCache]: Analyzing trace with hash 1206546524, now seen corresponding path program 66 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:07:58,400 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:07:58,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:58,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:58,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:07:59,462 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 0 proven. 2211 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:59,478 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:07:59,478 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [71] total 71 [2018-04-10 17:07:59,479 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:07:59,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:59,479 INFO L182 omatonBuilderFactory]: Interpolants [16896#(<= |#Ultimate.C_memset_#t~loopctr5| 58), 16897#(<= |#Ultimate.C_memset_#t~loopctr5| 59), 16898#(<= |#Ultimate.C_memset_#t~loopctr5| 60), 16899#(<= |#Ultimate.C_memset_#t~loopctr5| 61), 16900#(<= |#Ultimate.C_memset_#t~loopctr5| 62), 16901#(<= |#Ultimate.C_memset_#t~loopctr5| 63), 16902#(<= |#Ultimate.C_memset_#t~loopctr5| 64), 16903#(<= |#Ultimate.C_memset_#t~loopctr5| 65), 16904#(<= |#Ultimate.C_memset_#t~loopctr5| 66), 16905#(not (= 80 |#Ultimate.C_memset_#amount|)), 16837#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 16838#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 16839#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 16840#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 16841#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 16842#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 16843#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 16844#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 16845#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 16846#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 16847#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 16848#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 16849#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 16850#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 16851#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 16852#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 16853#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 16854#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 16855#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 16856#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 16857#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 16858#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 16859#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 16860#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 16861#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 16862#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 16863#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 16864#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 16865#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 16866#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 16867#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 16868#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 16869#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 16870#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 16871#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 16872#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 16873#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 16874#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 16875#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 16876#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 16877#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 16878#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 16879#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 16880#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 16881#(<= |#Ultimate.C_memset_#t~loopctr5| 43), 16882#(<= |#Ultimate.C_memset_#t~loopctr5| 44), 16883#(<= |#Ultimate.C_memset_#t~loopctr5| 45), 16884#(<= |#Ultimate.C_memset_#t~loopctr5| 46), 16885#(<= |#Ultimate.C_memset_#t~loopctr5| 47), 16886#(<= |#Ultimate.C_memset_#t~loopctr5| 48), 16887#(<= |#Ultimate.C_memset_#t~loopctr5| 49), 16888#(<= |#Ultimate.C_memset_#t~loopctr5| 50), 16761#true, 16889#(<= |#Ultimate.C_memset_#t~loopctr5| 51), 16762#false, 16890#(<= |#Ultimate.C_memset_#t~loopctr5| 52), 16891#(<= |#Ultimate.C_memset_#t~loopctr5| 53), 16892#(<= |#Ultimate.C_memset_#t~loopctr5| 54), 16893#(<= |#Ultimate.C_memset_#t~loopctr5| 55), 16894#(<= |#Ultimate.C_memset_#t~loopctr5| 56), 16895#(<= |#Ultimate.C_memset_#t~loopctr5| 57)] [2018-04-10 17:07:59,479 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 0 proven. 2211 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:07:59,479 INFO L442 AbstractCegarLoop]: Interpolant automaton has 71 states [2018-04-10 17:07:59,479 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2018-04-10 17:07:59,479 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2349, Invalid=2621, Unknown=0, NotChecked=0, Total=4970 [2018-04-10 17:07:59,480 INFO L87 Difference]: Start difference. First operand 84 states and 84 transitions. Second operand 71 states. [2018-04-10 17:08:00,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:08:00,876 INFO L93 Difference]: Finished difference Result 87 states and 87 transitions. [2018-04-10 17:08:00,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2018-04-10 17:08:00,876 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 83 [2018-04-10 17:08:00,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:08:00,876 INFO L225 Difference]: With dead ends: 87 [2018-04-10 17:08:00,876 INFO L226 Difference]: Without dead ends: 85 [2018-04-10 17:08:00,877 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2342 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=7043, Invalid=12139, Unknown=0, NotChecked=0, Total=19182 [2018-04-10 17:08:00,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-04-10 17:08:00,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2018-04-10 17:08:00,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-04-10 17:08:00,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 85 transitions. [2018-04-10 17:08:00,878 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 85 transitions. Word has length 83 [2018-04-10 17:08:00,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:08:00,878 INFO L459 AbstractCegarLoop]: Abstraction has 85 states and 85 transitions. [2018-04-10 17:08:00,878 INFO L460 AbstractCegarLoop]: Interpolant automaton has 71 states. [2018-04-10 17:08:00,878 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 85 transitions. [2018-04-10 17:08:00,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-04-10 17:08:00,878 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:08:00,878 INFO L355 BasicCegarLoop]: trace histogram [67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:08:00,878 INFO L408 AbstractCegarLoop]: === Iteration 70 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:08:00,879 INFO L82 PathProgramCache]: Analyzing trace with hash -1864669925, now seen corresponding path program 67 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:08:00,881 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:08:00,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:00,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:00,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:02,375 INFO L134 CoverageAnalysis]: Checked inductivity of 2278 backedges. 0 proven. 2278 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:02,391 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:08:02,391 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [72] total 72 [2018-04-10 17:08:02,391 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:08:02,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:02,392 INFO L182 omatonBuilderFactory]: Interpolants [17291#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 17292#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 17293#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 17294#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 17295#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 17296#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 17297#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 17298#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 17299#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 17300#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 17301#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 17302#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 17303#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 17304#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 17305#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 17306#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 17307#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 17308#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 17309#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 17310#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 17311#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 17312#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 17313#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 17314#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 17315#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 17316#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 17317#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 17318#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 17319#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 17320#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 17321#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 17322#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 17323#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 17324#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 17325#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 17326#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 17327#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 17328#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 17329#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 17330#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 17331#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 17332#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 17333#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 17334#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 17335#(<= |#Ultimate.C_memset_#t~loopctr5| 43), 17336#(<= |#Ultimate.C_memset_#t~loopctr5| 44), 17337#(<= |#Ultimate.C_memset_#t~loopctr5| 45), 17338#(<= |#Ultimate.C_memset_#t~loopctr5| 46), 17339#(<= |#Ultimate.C_memset_#t~loopctr5| 47), 17340#(<= |#Ultimate.C_memset_#t~loopctr5| 48), 17341#(<= |#Ultimate.C_memset_#t~loopctr5| 49), 17214#true, 17342#(<= |#Ultimate.C_memset_#t~loopctr5| 50), 17215#false, 17343#(<= |#Ultimate.C_memset_#t~loopctr5| 51), 17344#(<= |#Ultimate.C_memset_#t~loopctr5| 52), 17345#(<= |#Ultimate.C_memset_#t~loopctr5| 53), 17346#(<= |#Ultimate.C_memset_#t~loopctr5| 54), 17347#(<= |#Ultimate.C_memset_#t~loopctr5| 55), 17348#(<= |#Ultimate.C_memset_#t~loopctr5| 56), 17349#(<= |#Ultimate.C_memset_#t~loopctr5| 57), 17350#(<= |#Ultimate.C_memset_#t~loopctr5| 58), 17351#(<= |#Ultimate.C_memset_#t~loopctr5| 59), 17352#(<= |#Ultimate.C_memset_#t~loopctr5| 60), 17353#(<= |#Ultimate.C_memset_#t~loopctr5| 61), 17354#(<= |#Ultimate.C_memset_#t~loopctr5| 62), 17355#(<= |#Ultimate.C_memset_#t~loopctr5| 63), 17356#(<= |#Ultimate.C_memset_#t~loopctr5| 64), 17357#(<= |#Ultimate.C_memset_#t~loopctr5| 65), 17358#(<= |#Ultimate.C_memset_#t~loopctr5| 66), 17359#(<= |#Ultimate.C_memset_#t~loopctr5| 67), 17360#(not (= 80 |#Ultimate.C_memset_#amount|))] [2018-04-10 17:08:02,392 INFO L134 CoverageAnalysis]: Checked inductivity of 2278 backedges. 0 proven. 2278 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:02,392 INFO L442 AbstractCegarLoop]: Interpolant automaton has 72 states [2018-04-10 17:08:02,392 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2018-04-10 17:08:02,392 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2418, Invalid=2694, Unknown=0, NotChecked=0, Total=5112 [2018-04-10 17:08:02,392 INFO L87 Difference]: Start difference. First operand 85 states and 85 transitions. Second operand 72 states. [2018-04-10 17:08:03,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:08:03,995 INFO L93 Difference]: Finished difference Result 88 states and 88 transitions. [2018-04-10 17:08:03,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2018-04-10 17:08:03,996 INFO L78 Accepts]: Start accepts. Automaton has 72 states. Word has length 84 [2018-04-10 17:08:03,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:08:03,996 INFO L225 Difference]: With dead ends: 88 [2018-04-10 17:08:03,996 INFO L226 Difference]: Without dead ends: 86 [2018-04-10 17:08:03,996 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2411 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=7250, Invalid=12490, Unknown=0, NotChecked=0, Total=19740 [2018-04-10 17:08:03,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-04-10 17:08:03,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2018-04-10 17:08:03,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-04-10 17:08:03,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 86 transitions. [2018-04-10 17:08:03,998 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 86 transitions. Word has length 84 [2018-04-10 17:08:03,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:08:03,998 INFO L459 AbstractCegarLoop]: Abstraction has 86 states and 86 transitions. [2018-04-10 17:08:03,998 INFO L460 AbstractCegarLoop]: Interpolant automaton has 72 states. [2018-04-10 17:08:03,998 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 86 transitions. [2018-04-10 17:08:03,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-04-10 17:08:03,998 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:08:03,998 INFO L355 BasicCegarLoop]: trace histogram [68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:08:03,998 INFO L408 AbstractCegarLoop]: === Iteration 71 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:08:03,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1711867964, now seen corresponding path program 68 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:08:04,000 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:08:04,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:04,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:04,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:05,157 INFO L134 CoverageAnalysis]: Checked inductivity of 2346 backedges. 0 proven. 2346 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:05,173 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:08:05,173 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [73] total 73 [2018-04-10 17:08:05,173 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:08:05,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:05,174 INFO L182 omatonBuilderFactory]: Interpolants [17792#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 17793#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 17794#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 17795#(<= |#Ultimate.C_memset_#t~loopctr5| 43), 17796#(<= |#Ultimate.C_memset_#t~loopctr5| 44), 17797#(<= |#Ultimate.C_memset_#t~loopctr5| 45), 17798#(<= |#Ultimate.C_memset_#t~loopctr5| 46), 17799#(<= |#Ultimate.C_memset_#t~loopctr5| 47), 17800#(<= |#Ultimate.C_memset_#t~loopctr5| 48), 17673#true, 17801#(<= |#Ultimate.C_memset_#t~loopctr5| 49), 17674#false, 17802#(<= |#Ultimate.C_memset_#t~loopctr5| 50), 17803#(<= |#Ultimate.C_memset_#t~loopctr5| 51), 17804#(<= |#Ultimate.C_memset_#t~loopctr5| 52), 17805#(<= |#Ultimate.C_memset_#t~loopctr5| 53), 17806#(<= |#Ultimate.C_memset_#t~loopctr5| 54), 17807#(<= |#Ultimate.C_memset_#t~loopctr5| 55), 17808#(<= |#Ultimate.C_memset_#t~loopctr5| 56), 17809#(<= |#Ultimate.C_memset_#t~loopctr5| 57), 17810#(<= |#Ultimate.C_memset_#t~loopctr5| 58), 17811#(<= |#Ultimate.C_memset_#t~loopctr5| 59), 17812#(<= |#Ultimate.C_memset_#t~loopctr5| 60), 17813#(<= |#Ultimate.C_memset_#t~loopctr5| 61), 17814#(<= |#Ultimate.C_memset_#t~loopctr5| 62), 17815#(<= |#Ultimate.C_memset_#t~loopctr5| 63), 17816#(<= |#Ultimate.C_memset_#t~loopctr5| 64), 17817#(<= |#Ultimate.C_memset_#t~loopctr5| 65), 17818#(<= |#Ultimate.C_memset_#t~loopctr5| 66), 17819#(<= |#Ultimate.C_memset_#t~loopctr5| 67), 17820#(<= |#Ultimate.C_memset_#t~loopctr5| 68), 17821#(not (= 80 |#Ultimate.C_memset_#amount|)), 17751#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 17752#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 17753#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 17754#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 17755#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 17756#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 17757#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 17758#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 17759#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 17760#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 17761#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 17762#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 17763#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 17764#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 17765#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 17766#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 17767#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 17768#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 17769#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 17770#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 17771#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 17772#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 17773#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 17774#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 17775#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 17776#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 17777#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 17778#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 17779#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 17780#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 17781#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 17782#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 17783#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 17784#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 17785#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 17786#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 17787#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 17788#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 17789#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 17790#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 17791#(<= |#Ultimate.C_memset_#t~loopctr5| 39)] [2018-04-10 17:08:05,174 INFO L134 CoverageAnalysis]: Checked inductivity of 2346 backedges. 0 proven. 2346 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:05,174 INFO L442 AbstractCegarLoop]: Interpolant automaton has 73 states [2018-04-10 17:08:05,174 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2018-04-10 17:08:05,174 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2488, Invalid=2768, Unknown=0, NotChecked=0, Total=5256 [2018-04-10 17:08:05,175 INFO L87 Difference]: Start difference. First operand 86 states and 86 transitions. Second operand 73 states. [2018-04-10 17:08:06,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:08:06,751 INFO L93 Difference]: Finished difference Result 89 states and 89 transitions. [2018-04-10 17:08:06,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2018-04-10 17:08:06,751 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 85 [2018-04-10 17:08:06,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:08:06,751 INFO L225 Difference]: With dead ends: 89 [2018-04-10 17:08:06,751 INFO L226 Difference]: Without dead ends: 87 [2018-04-10 17:08:06,752 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2481 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=7460, Invalid=12846, Unknown=0, NotChecked=0, Total=20306 [2018-04-10 17:08:06,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-04-10 17:08:06,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2018-04-10 17:08:06,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-04-10 17:08:06,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 87 transitions. [2018-04-10 17:08:06,753 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 87 transitions. Word has length 85 [2018-04-10 17:08:06,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:08:06,753 INFO L459 AbstractCegarLoop]: Abstraction has 87 states and 87 transitions. [2018-04-10 17:08:06,753 INFO L460 AbstractCegarLoop]: Interpolant automaton has 73 states. [2018-04-10 17:08:06,753 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 87 transitions. [2018-04-10 17:08:06,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-04-10 17:08:06,753 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:08:06,753 INFO L355 BasicCegarLoop]: trace histogram [69, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:08:06,753 INFO L408 AbstractCegarLoop]: === Iteration 72 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:08:06,754 INFO L82 PathProgramCache]: Analyzing trace with hash 915392827, now seen corresponding path program 69 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:08:06,756 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:08:06,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:06,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:06,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:07,942 INFO L134 CoverageAnalysis]: Checked inductivity of 2415 backedges. 0 proven. 2415 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:07,958 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:08:07,958 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [74] total 74 [2018-04-10 17:08:07,958 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:08:07,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:07,958 INFO L182 omatonBuilderFactory]: Interpolants [18217#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 18218#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 18219#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 18220#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 18221#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 18222#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 18223#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 18224#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 18225#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 18226#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 18227#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 18228#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 18229#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 18230#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 18231#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 18232#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 18233#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 18234#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 18235#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 18236#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 18237#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 18238#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 18239#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 18240#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 18241#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 18242#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 18243#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 18244#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 18245#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 18246#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 18247#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 18248#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 18249#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 18250#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 18251#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 18252#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 18253#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 18254#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 18255#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 18256#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 18257#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 18258#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 18259#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 18260#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 18261#(<= |#Ultimate.C_memset_#t~loopctr5| 43), 18262#(<= |#Ultimate.C_memset_#t~loopctr5| 44), 18263#(<= |#Ultimate.C_memset_#t~loopctr5| 45), 18264#(<= |#Ultimate.C_memset_#t~loopctr5| 46), 18265#(<= |#Ultimate.C_memset_#t~loopctr5| 47), 18138#true, 18266#(<= |#Ultimate.C_memset_#t~loopctr5| 48), 18139#false, 18267#(<= |#Ultimate.C_memset_#t~loopctr5| 49), 18268#(<= |#Ultimate.C_memset_#t~loopctr5| 50), 18269#(<= |#Ultimate.C_memset_#t~loopctr5| 51), 18270#(<= |#Ultimate.C_memset_#t~loopctr5| 52), 18271#(<= |#Ultimate.C_memset_#t~loopctr5| 53), 18272#(<= |#Ultimate.C_memset_#t~loopctr5| 54), 18273#(<= |#Ultimate.C_memset_#t~loopctr5| 55), 18274#(<= |#Ultimate.C_memset_#t~loopctr5| 56), 18275#(<= |#Ultimate.C_memset_#t~loopctr5| 57), 18276#(<= |#Ultimate.C_memset_#t~loopctr5| 58), 18277#(<= |#Ultimate.C_memset_#t~loopctr5| 59), 18278#(<= |#Ultimate.C_memset_#t~loopctr5| 60), 18279#(<= |#Ultimate.C_memset_#t~loopctr5| 61), 18280#(<= |#Ultimate.C_memset_#t~loopctr5| 62), 18281#(<= |#Ultimate.C_memset_#t~loopctr5| 63), 18282#(<= |#Ultimate.C_memset_#t~loopctr5| 64), 18283#(<= |#Ultimate.C_memset_#t~loopctr5| 65), 18284#(<= |#Ultimate.C_memset_#t~loopctr5| 66), 18285#(<= |#Ultimate.C_memset_#t~loopctr5| 67), 18286#(<= |#Ultimate.C_memset_#t~loopctr5| 68), 18287#(<= |#Ultimate.C_memset_#t~loopctr5| 69), 18288#(not (= 80 |#Ultimate.C_memset_#amount|))] [2018-04-10 17:08:07,959 INFO L134 CoverageAnalysis]: Checked inductivity of 2415 backedges. 0 proven. 2415 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:07,959 INFO L442 AbstractCegarLoop]: Interpolant automaton has 74 states [2018-04-10 17:08:07,959 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2018-04-10 17:08:07,959 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2559, Invalid=2843, Unknown=0, NotChecked=0, Total=5402 [2018-04-10 17:08:07,959 INFO L87 Difference]: Start difference. First operand 87 states and 87 transitions. Second operand 74 states. [2018-04-10 17:08:09,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:08:09,610 INFO L93 Difference]: Finished difference Result 90 states and 90 transitions. [2018-04-10 17:08:09,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2018-04-10 17:08:09,610 INFO L78 Accepts]: Start accepts. Automaton has 74 states. Word has length 86 [2018-04-10 17:08:09,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:08:09,611 INFO L225 Difference]: With dead ends: 90 [2018-04-10 17:08:09,611 INFO L226 Difference]: Without dead ends: 88 [2018-04-10 17:08:09,612 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2552 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=7673, Invalid=13207, Unknown=0, NotChecked=0, Total=20880 [2018-04-10 17:08:09,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-04-10 17:08:09,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2018-04-10 17:08:09,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-04-10 17:08:09,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 88 transitions. [2018-04-10 17:08:09,613 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 88 transitions. Word has length 86 [2018-04-10 17:08:09,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:08:09,614 INFO L459 AbstractCegarLoop]: Abstraction has 88 states and 88 transitions. [2018-04-10 17:08:09,614 INFO L460 AbstractCegarLoop]: Interpolant automaton has 74 states. [2018-04-10 17:08:09,614 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 88 transitions. [2018-04-10 17:08:09,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-04-10 17:08:09,614 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:08:09,614 INFO L355 BasicCegarLoop]: trace histogram [70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:08:09,614 INFO L408 AbstractCegarLoop]: === Iteration 73 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:08:09,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1994467356, now seen corresponding path program 70 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 74 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 74 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:08:09,618 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:08:09,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:09,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:09,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:10,803 INFO L134 CoverageAnalysis]: Checked inductivity of 2485 backedges. 0 proven. 2485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:10,819 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:08:10,819 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [75] total 75 [2018-04-10 17:08:10,819 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:08:10,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:10,819 INFO L182 omatonBuilderFactory]: Interpolants [18689#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 18690#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 18691#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 18692#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 18693#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 18694#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 18695#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 18696#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 18697#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 18698#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 18699#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 18700#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 18701#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 18702#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 18703#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 18704#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 18705#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 18706#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 18707#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 18708#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 18709#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 18710#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 18711#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 18712#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 18713#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 18714#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 18715#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 18716#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 18717#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 18718#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 18719#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 18720#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 18721#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 18722#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 18723#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 18724#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 18725#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 18726#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 18727#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 18728#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 18729#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 18730#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 18731#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 18732#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 18733#(<= |#Ultimate.C_memset_#t~loopctr5| 43), 18734#(<= |#Ultimate.C_memset_#t~loopctr5| 44), 18735#(<= |#Ultimate.C_memset_#t~loopctr5| 45), 18736#(<= |#Ultimate.C_memset_#t~loopctr5| 46), 18609#true, 18737#(<= |#Ultimate.C_memset_#t~loopctr5| 47), 18610#false, 18738#(<= |#Ultimate.C_memset_#t~loopctr5| 48), 18739#(<= |#Ultimate.C_memset_#t~loopctr5| 49), 18740#(<= |#Ultimate.C_memset_#t~loopctr5| 50), 18741#(<= |#Ultimate.C_memset_#t~loopctr5| 51), 18742#(<= |#Ultimate.C_memset_#t~loopctr5| 52), 18743#(<= |#Ultimate.C_memset_#t~loopctr5| 53), 18744#(<= |#Ultimate.C_memset_#t~loopctr5| 54), 18745#(<= |#Ultimate.C_memset_#t~loopctr5| 55), 18746#(<= |#Ultimate.C_memset_#t~loopctr5| 56), 18747#(<= |#Ultimate.C_memset_#t~loopctr5| 57), 18748#(<= |#Ultimate.C_memset_#t~loopctr5| 58), 18749#(<= |#Ultimate.C_memset_#t~loopctr5| 59), 18750#(<= |#Ultimate.C_memset_#t~loopctr5| 60), 18751#(<= |#Ultimate.C_memset_#t~loopctr5| 61), 18752#(<= |#Ultimate.C_memset_#t~loopctr5| 62), 18753#(<= |#Ultimate.C_memset_#t~loopctr5| 63), 18754#(<= |#Ultimate.C_memset_#t~loopctr5| 64), 18755#(<= |#Ultimate.C_memset_#t~loopctr5| 65), 18756#(<= |#Ultimate.C_memset_#t~loopctr5| 66), 18757#(<= |#Ultimate.C_memset_#t~loopctr5| 67), 18758#(<= |#Ultimate.C_memset_#t~loopctr5| 68), 18759#(<= |#Ultimate.C_memset_#t~loopctr5| 69), 18760#(<= |#Ultimate.C_memset_#t~loopctr5| 70), 18761#(not (= 80 |#Ultimate.C_memset_#amount|))] [2018-04-10 17:08:10,820 INFO L134 CoverageAnalysis]: Checked inductivity of 2485 backedges. 0 proven. 2485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:10,820 INFO L442 AbstractCegarLoop]: Interpolant automaton has 75 states [2018-04-10 17:08:10,820 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2018-04-10 17:08:10,820 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2631, Invalid=2919, Unknown=0, NotChecked=0, Total=5550 [2018-04-10 17:08:10,820 INFO L87 Difference]: Start difference. First operand 88 states and 88 transitions. Second operand 75 states. [2018-04-10 17:08:12,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:08:12,474 INFO L93 Difference]: Finished difference Result 91 states and 91 transitions. [2018-04-10 17:08:12,474 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2018-04-10 17:08:12,475 INFO L78 Accepts]: Start accepts. Automaton has 75 states. Word has length 87 [2018-04-10 17:08:12,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:08:12,475 INFO L225 Difference]: With dead ends: 91 [2018-04-10 17:08:12,475 INFO L226 Difference]: Without dead ends: 89 [2018-04-10 17:08:12,475 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2624 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=7889, Invalid=13573, Unknown=0, NotChecked=0, Total=21462 [2018-04-10 17:08:12,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-04-10 17:08:12,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2018-04-10 17:08:12,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-04-10 17:08:12,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 89 transitions. [2018-04-10 17:08:12,476 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 89 transitions. Word has length 87 [2018-04-10 17:08:12,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:08:12,476 INFO L459 AbstractCegarLoop]: Abstraction has 89 states and 89 transitions. [2018-04-10 17:08:12,477 INFO L460 AbstractCegarLoop]: Interpolant automaton has 75 states. [2018-04-10 17:08:12,477 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 89 transitions. [2018-04-10 17:08:12,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-04-10 17:08:12,477 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:08:12,477 INFO L355 BasicCegarLoop]: trace histogram [71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:08:12,477 INFO L408 AbstractCegarLoop]: === Iteration 74 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:08:12,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1086039387, now seen corresponding path program 71 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 75 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 75 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:08:12,479 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:08:12,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:12,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:12,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:13,706 INFO L134 CoverageAnalysis]: Checked inductivity of 2556 backedges. 0 proven. 2556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:13,723 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:08:13,723 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [76] total 76 [2018-04-10 17:08:13,723 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:08:13,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:13,723 INFO L182 omatonBuilderFactory]: Interpolants [19200#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 19201#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 19202#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 19203#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 19204#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 19205#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 19206#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 19207#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 19208#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 19209#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 19210#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 19211#(<= |#Ultimate.C_memset_#t~loopctr5| 43), 19212#(<= |#Ultimate.C_memset_#t~loopctr5| 44), 19213#(<= |#Ultimate.C_memset_#t~loopctr5| 45), 19086#true, 19214#(<= |#Ultimate.C_memset_#t~loopctr5| 46), 19087#false, 19215#(<= |#Ultimate.C_memset_#t~loopctr5| 47), 19216#(<= |#Ultimate.C_memset_#t~loopctr5| 48), 19217#(<= |#Ultimate.C_memset_#t~loopctr5| 49), 19218#(<= |#Ultimate.C_memset_#t~loopctr5| 50), 19219#(<= |#Ultimate.C_memset_#t~loopctr5| 51), 19220#(<= |#Ultimate.C_memset_#t~loopctr5| 52), 19221#(<= |#Ultimate.C_memset_#t~loopctr5| 53), 19222#(<= |#Ultimate.C_memset_#t~loopctr5| 54), 19223#(<= |#Ultimate.C_memset_#t~loopctr5| 55), 19224#(<= |#Ultimate.C_memset_#t~loopctr5| 56), 19225#(<= |#Ultimate.C_memset_#t~loopctr5| 57), 19226#(<= |#Ultimate.C_memset_#t~loopctr5| 58), 19227#(<= |#Ultimate.C_memset_#t~loopctr5| 59), 19228#(<= |#Ultimate.C_memset_#t~loopctr5| 60), 19229#(<= |#Ultimate.C_memset_#t~loopctr5| 61), 19230#(<= |#Ultimate.C_memset_#t~loopctr5| 62), 19231#(<= |#Ultimate.C_memset_#t~loopctr5| 63), 19232#(<= |#Ultimate.C_memset_#t~loopctr5| 64), 19233#(<= |#Ultimate.C_memset_#t~loopctr5| 65), 19234#(<= |#Ultimate.C_memset_#t~loopctr5| 66), 19235#(<= |#Ultimate.C_memset_#t~loopctr5| 67), 19236#(<= |#Ultimate.C_memset_#t~loopctr5| 68), 19237#(<= |#Ultimate.C_memset_#t~loopctr5| 69), 19238#(<= |#Ultimate.C_memset_#t~loopctr5| 70), 19239#(<= |#Ultimate.C_memset_#t~loopctr5| 71), 19240#(not (= 80 |#Ultimate.C_memset_#amount|)), 19167#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 19168#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 19169#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 19170#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 19171#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 19172#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 19173#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 19174#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 19175#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 19176#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 19177#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 19178#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 19179#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 19180#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 19181#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 19182#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 19183#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 19184#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 19185#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 19186#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 19187#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 19188#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 19189#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 19190#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 19191#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 19192#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 19193#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 19194#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 19195#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 19196#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 19197#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 19198#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 19199#(<= |#Ultimate.C_memset_#t~loopctr5| 31)] [2018-04-10 17:08:13,723 INFO L134 CoverageAnalysis]: Checked inductivity of 2556 backedges. 0 proven. 2556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:13,723 INFO L442 AbstractCegarLoop]: Interpolant automaton has 76 states [2018-04-10 17:08:13,724 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2018-04-10 17:08:13,724 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2704, Invalid=2996, Unknown=0, NotChecked=0, Total=5700 [2018-04-10 17:08:13,724 INFO L87 Difference]: Start difference. First operand 89 states and 89 transitions. Second operand 76 states. [2018-04-10 17:08:15,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:08:15,383 INFO L93 Difference]: Finished difference Result 92 states and 92 transitions. [2018-04-10 17:08:15,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2018-04-10 17:08:15,383 INFO L78 Accepts]: Start accepts. Automaton has 76 states. Word has length 88 [2018-04-10 17:08:15,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:08:15,383 INFO L225 Difference]: With dead ends: 92 [2018-04-10 17:08:15,384 INFO L226 Difference]: Without dead ends: 90 [2018-04-10 17:08:15,384 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2697 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=8108, Invalid=13944, Unknown=0, NotChecked=0, Total=22052 [2018-04-10 17:08:15,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2018-04-10 17:08:15,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2018-04-10 17:08:15,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2018-04-10 17:08:15,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 90 transitions. [2018-04-10 17:08:15,385 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 90 transitions. Word has length 88 [2018-04-10 17:08:15,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:08:15,385 INFO L459 AbstractCegarLoop]: Abstraction has 90 states and 90 transitions. [2018-04-10 17:08:15,385 INFO L460 AbstractCegarLoop]: Interpolant automaton has 76 states. [2018-04-10 17:08:15,385 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 90 transitions. [2018-04-10 17:08:15,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-04-10 17:08:15,386 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:08:15,386 INFO L355 BasicCegarLoop]: trace histogram [72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:08:15,386 INFO L408 AbstractCegarLoop]: === Iteration 75 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:08:15,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1305423876, now seen corresponding path program 72 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:08:15,388 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:08:15,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:15,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:15,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:16,635 INFO L134 CoverageAnalysis]: Checked inductivity of 2628 backedges. 0 proven. 2628 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:16,651 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:08:16,651 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [77] total 77 [2018-04-10 17:08:16,651 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:08:16,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:16,652 INFO L182 omatonBuilderFactory]: Interpolants [19712#(<= |#Ultimate.C_memset_#t~loopctr5| 60), 19713#(<= |#Ultimate.C_memset_#t~loopctr5| 61), 19714#(<= |#Ultimate.C_memset_#t~loopctr5| 62), 19715#(<= |#Ultimate.C_memset_#t~loopctr5| 63), 19716#(<= |#Ultimate.C_memset_#t~loopctr5| 64), 19717#(<= |#Ultimate.C_memset_#t~loopctr5| 65), 19718#(<= |#Ultimate.C_memset_#t~loopctr5| 66), 19719#(<= |#Ultimate.C_memset_#t~loopctr5| 67), 19720#(<= |#Ultimate.C_memset_#t~loopctr5| 68), 19721#(<= |#Ultimate.C_memset_#t~loopctr5| 69), 19722#(<= |#Ultimate.C_memset_#t~loopctr5| 70), 19723#(<= |#Ultimate.C_memset_#t~loopctr5| 71), 19724#(<= |#Ultimate.C_memset_#t~loopctr5| 72), 19725#(not (= 80 |#Ultimate.C_memset_#amount|)), 19651#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 19652#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 19653#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 19654#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 19655#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 19656#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 19657#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 19658#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 19659#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 19660#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 19661#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 19662#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 19663#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 19664#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 19665#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 19666#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 19667#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 19668#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 19669#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 19670#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 19671#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 19672#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 19673#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 19674#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 19675#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 19676#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 19677#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 19678#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 19679#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 19680#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 19681#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 19682#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 19683#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 19684#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 19685#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 19686#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 19687#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 19688#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 19689#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 19690#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 19691#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 19692#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 19693#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 19694#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 19695#(<= |#Ultimate.C_memset_#t~loopctr5| 43), 19696#(<= |#Ultimate.C_memset_#t~loopctr5| 44), 19569#true, 19697#(<= |#Ultimate.C_memset_#t~loopctr5| 45), 19570#false, 19698#(<= |#Ultimate.C_memset_#t~loopctr5| 46), 19699#(<= |#Ultimate.C_memset_#t~loopctr5| 47), 19700#(<= |#Ultimate.C_memset_#t~loopctr5| 48), 19701#(<= |#Ultimate.C_memset_#t~loopctr5| 49), 19702#(<= |#Ultimate.C_memset_#t~loopctr5| 50), 19703#(<= |#Ultimate.C_memset_#t~loopctr5| 51), 19704#(<= |#Ultimate.C_memset_#t~loopctr5| 52), 19705#(<= |#Ultimate.C_memset_#t~loopctr5| 53), 19706#(<= |#Ultimate.C_memset_#t~loopctr5| 54), 19707#(<= |#Ultimate.C_memset_#t~loopctr5| 55), 19708#(<= |#Ultimate.C_memset_#t~loopctr5| 56), 19709#(<= |#Ultimate.C_memset_#t~loopctr5| 57), 19710#(<= |#Ultimate.C_memset_#t~loopctr5| 58), 19711#(<= |#Ultimate.C_memset_#t~loopctr5| 59)] [2018-04-10 17:08:16,652 INFO L134 CoverageAnalysis]: Checked inductivity of 2628 backedges. 0 proven. 2628 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:16,652 INFO L442 AbstractCegarLoop]: Interpolant automaton has 77 states [2018-04-10 17:08:16,652 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2018-04-10 17:08:16,652 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2778, Invalid=3074, Unknown=0, NotChecked=0, Total=5852 [2018-04-10 17:08:16,652 INFO L87 Difference]: Start difference. First operand 90 states and 90 transitions. Second operand 77 states. [2018-04-10 17:08:18,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:08:18,297 INFO L93 Difference]: Finished difference Result 93 states and 93 transitions. [2018-04-10 17:08:18,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2018-04-10 17:08:18,297 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 89 [2018-04-10 17:08:18,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:08:18,297 INFO L225 Difference]: With dead ends: 93 [2018-04-10 17:08:18,297 INFO L226 Difference]: Without dead ends: 91 [2018-04-10 17:08:18,298 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2771 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=8330, Invalid=14320, Unknown=0, NotChecked=0, Total=22650 [2018-04-10 17:08:18,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-04-10 17:08:18,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2018-04-10 17:08:18,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-04-10 17:08:18,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 91 transitions. [2018-04-10 17:08:18,299 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 91 transitions. Word has length 89 [2018-04-10 17:08:18,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:08:18,299 INFO L459 AbstractCegarLoop]: Abstraction has 91 states and 91 transitions. [2018-04-10 17:08:18,299 INFO L460 AbstractCegarLoop]: Interpolant automaton has 77 states. [2018-04-10 17:08:18,299 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 91 transitions. [2018-04-10 17:08:18,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-04-10 17:08:18,299 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:08:18,299 INFO L355 BasicCegarLoop]: trace histogram [73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:08:18,299 INFO L408 AbstractCegarLoop]: === Iteration 76 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:08:18,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1868626299, now seen corresponding path program 73 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:08:18,302 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:08:18,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:18,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:18,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:19,576 INFO L134 CoverageAnalysis]: Checked inductivity of 2701 backedges. 0 proven. 2701 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:19,592 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:08:19,593 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [78] total 78 [2018-04-10 17:08:19,593 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:08:19,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:19,593 INFO L182 omatonBuilderFactory]: Interpolants [20141#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 20142#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 20143#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 20144#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 20145#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 20146#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 20147#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 20148#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 20149#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 20150#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 20151#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 20152#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 20153#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 20154#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 20155#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 20156#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 20157#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 20158#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 20159#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 20160#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 20161#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 20162#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 20163#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 20164#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 20165#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 20166#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 20167#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 20168#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 20169#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 20170#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 20171#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 20172#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 20173#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 20174#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 20175#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 20176#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 20177#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 20178#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 20179#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 20180#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 20181#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 20182#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 20183#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 20184#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 20185#(<= |#Ultimate.C_memset_#t~loopctr5| 43), 20058#true, 20186#(<= |#Ultimate.C_memset_#t~loopctr5| 44), 20059#false, 20187#(<= |#Ultimate.C_memset_#t~loopctr5| 45), 20188#(<= |#Ultimate.C_memset_#t~loopctr5| 46), 20189#(<= |#Ultimate.C_memset_#t~loopctr5| 47), 20190#(<= |#Ultimate.C_memset_#t~loopctr5| 48), 20191#(<= |#Ultimate.C_memset_#t~loopctr5| 49), 20192#(<= |#Ultimate.C_memset_#t~loopctr5| 50), 20193#(<= |#Ultimate.C_memset_#t~loopctr5| 51), 20194#(<= |#Ultimate.C_memset_#t~loopctr5| 52), 20195#(<= |#Ultimate.C_memset_#t~loopctr5| 53), 20196#(<= |#Ultimate.C_memset_#t~loopctr5| 54), 20197#(<= |#Ultimate.C_memset_#t~loopctr5| 55), 20198#(<= |#Ultimate.C_memset_#t~loopctr5| 56), 20199#(<= |#Ultimate.C_memset_#t~loopctr5| 57), 20200#(<= |#Ultimate.C_memset_#t~loopctr5| 58), 20201#(<= |#Ultimate.C_memset_#t~loopctr5| 59), 20202#(<= |#Ultimate.C_memset_#t~loopctr5| 60), 20203#(<= |#Ultimate.C_memset_#t~loopctr5| 61), 20204#(<= |#Ultimate.C_memset_#t~loopctr5| 62), 20205#(<= |#Ultimate.C_memset_#t~loopctr5| 63), 20206#(<= |#Ultimate.C_memset_#t~loopctr5| 64), 20207#(<= |#Ultimate.C_memset_#t~loopctr5| 65), 20208#(<= |#Ultimate.C_memset_#t~loopctr5| 66), 20209#(<= |#Ultimate.C_memset_#t~loopctr5| 67), 20210#(<= |#Ultimate.C_memset_#t~loopctr5| 68), 20211#(<= |#Ultimate.C_memset_#t~loopctr5| 69), 20212#(<= |#Ultimate.C_memset_#t~loopctr5| 70), 20213#(<= |#Ultimate.C_memset_#t~loopctr5| 71), 20214#(<= |#Ultimate.C_memset_#t~loopctr5| 72), 20215#(<= |#Ultimate.C_memset_#t~loopctr5| 73), 20216#(not (= 80 |#Ultimate.C_memset_#amount|))] [2018-04-10 17:08:19,593 INFO L134 CoverageAnalysis]: Checked inductivity of 2701 backedges. 0 proven. 2701 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:19,593 INFO L442 AbstractCegarLoop]: Interpolant automaton has 78 states [2018-04-10 17:08:19,594 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2018-04-10 17:08:19,594 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2853, Invalid=3153, Unknown=0, NotChecked=0, Total=6006 [2018-04-10 17:08:19,594 INFO L87 Difference]: Start difference. First operand 91 states and 91 transitions. Second operand 78 states. [2018-04-10 17:08:21,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:08:21,371 INFO L93 Difference]: Finished difference Result 94 states and 94 transitions. [2018-04-10 17:08:21,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2018-04-10 17:08:21,371 INFO L78 Accepts]: Start accepts. Automaton has 78 states. Word has length 90 [2018-04-10 17:08:21,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:08:21,372 INFO L225 Difference]: With dead ends: 94 [2018-04-10 17:08:21,372 INFO L226 Difference]: Without dead ends: 92 [2018-04-10 17:08:21,372 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2846 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=8555, Invalid=14701, Unknown=0, NotChecked=0, Total=23256 [2018-04-10 17:08:21,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2018-04-10 17:08:21,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2018-04-10 17:08:21,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-04-10 17:08:21,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 92 transitions. [2018-04-10 17:08:21,373 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 92 transitions. Word has length 90 [2018-04-10 17:08:21,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:08:21,373 INFO L459 AbstractCegarLoop]: Abstraction has 92 states and 92 transitions. [2018-04-10 17:08:21,373 INFO L460 AbstractCegarLoop]: Interpolant automaton has 78 states. [2018-04-10 17:08:21,373 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 92 transitions. [2018-04-10 17:08:21,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-04-10 17:08:21,374 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:08:21,374 INFO L355 BasicCegarLoop]: trace histogram [74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:08:21,374 INFO L408 AbstractCegarLoop]: === Iteration 77 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:08:21,374 INFO L82 PathProgramCache]: Analyzing trace with hash 1479933916, now seen corresponding path program 74 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 78 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 78 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:08:21,376 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:08:21,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:21,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:21,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:22,684 INFO L134 CoverageAnalysis]: Checked inductivity of 2775 backedges. 0 proven. 2775 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:22,700 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:08:22,700 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [79] total 79 [2018-04-10 17:08:22,700 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:08:22,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:22,701 INFO L182 omatonBuilderFactory]: Interpolants [20637#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 20638#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 20639#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 20640#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 20641#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 20642#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 20643#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 20644#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 20645#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 20646#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 20647#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 20648#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 20649#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 20650#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 20651#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 20652#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 20653#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 20654#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 20655#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 20656#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 20657#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 20658#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 20659#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 20660#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 20661#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 20662#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 20663#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 20664#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 20665#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 20666#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 20667#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 20668#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 20669#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 20670#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 20671#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 20672#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 20673#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 20674#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 20675#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 20676#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 20677#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 20678#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 20679#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 20680#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 20553#true, 20681#(<= |#Ultimate.C_memset_#t~loopctr5| 43), 20554#false, 20682#(<= |#Ultimate.C_memset_#t~loopctr5| 44), 20683#(<= |#Ultimate.C_memset_#t~loopctr5| 45), 20684#(<= |#Ultimate.C_memset_#t~loopctr5| 46), 20685#(<= |#Ultimate.C_memset_#t~loopctr5| 47), 20686#(<= |#Ultimate.C_memset_#t~loopctr5| 48), 20687#(<= |#Ultimate.C_memset_#t~loopctr5| 49), 20688#(<= |#Ultimate.C_memset_#t~loopctr5| 50), 20689#(<= |#Ultimate.C_memset_#t~loopctr5| 51), 20690#(<= |#Ultimate.C_memset_#t~loopctr5| 52), 20691#(<= |#Ultimate.C_memset_#t~loopctr5| 53), 20692#(<= |#Ultimate.C_memset_#t~loopctr5| 54), 20693#(<= |#Ultimate.C_memset_#t~loopctr5| 55), 20694#(<= |#Ultimate.C_memset_#t~loopctr5| 56), 20695#(<= |#Ultimate.C_memset_#t~loopctr5| 57), 20696#(<= |#Ultimate.C_memset_#t~loopctr5| 58), 20697#(<= |#Ultimate.C_memset_#t~loopctr5| 59), 20698#(<= |#Ultimate.C_memset_#t~loopctr5| 60), 20699#(<= |#Ultimate.C_memset_#t~loopctr5| 61), 20700#(<= |#Ultimate.C_memset_#t~loopctr5| 62), 20701#(<= |#Ultimate.C_memset_#t~loopctr5| 63), 20702#(<= |#Ultimate.C_memset_#t~loopctr5| 64), 20703#(<= |#Ultimate.C_memset_#t~loopctr5| 65), 20704#(<= |#Ultimate.C_memset_#t~loopctr5| 66), 20705#(<= |#Ultimate.C_memset_#t~loopctr5| 67), 20706#(<= |#Ultimate.C_memset_#t~loopctr5| 68), 20707#(<= |#Ultimate.C_memset_#t~loopctr5| 69), 20708#(<= |#Ultimate.C_memset_#t~loopctr5| 70), 20709#(<= |#Ultimate.C_memset_#t~loopctr5| 71), 20710#(<= |#Ultimate.C_memset_#t~loopctr5| 72), 20711#(<= |#Ultimate.C_memset_#t~loopctr5| 73), 20712#(<= |#Ultimate.C_memset_#t~loopctr5| 74), 20713#(not (= 80 |#Ultimate.C_memset_#amount|))] [2018-04-10 17:08:22,701 INFO L134 CoverageAnalysis]: Checked inductivity of 2775 backedges. 0 proven. 2775 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:22,701 INFO L442 AbstractCegarLoop]: Interpolant automaton has 79 states [2018-04-10 17:08:22,701 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2018-04-10 17:08:22,701 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2929, Invalid=3233, Unknown=0, NotChecked=0, Total=6162 [2018-04-10 17:08:22,701 INFO L87 Difference]: Start difference. First operand 92 states and 92 transitions. Second operand 79 states. [2018-04-10 17:08:24,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:08:24,496 INFO L93 Difference]: Finished difference Result 95 states and 95 transitions. [2018-04-10 17:08:24,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2018-04-10 17:08:24,496 INFO L78 Accepts]: Start accepts. Automaton has 79 states. Word has length 91 [2018-04-10 17:08:24,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:08:24,497 INFO L225 Difference]: With dead ends: 95 [2018-04-10 17:08:24,497 INFO L226 Difference]: Without dead ends: 93 [2018-04-10 17:08:24,497 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2922 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=8783, Invalid=15087, Unknown=0, NotChecked=0, Total=23870 [2018-04-10 17:08:24,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2018-04-10 17:08:24,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2018-04-10 17:08:24,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-04-10 17:08:24,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 93 transitions. [2018-04-10 17:08:24,498 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 93 transitions. Word has length 91 [2018-04-10 17:08:24,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:08:24,499 INFO L459 AbstractCegarLoop]: Abstraction has 93 states and 93 transitions. [2018-04-10 17:08:24,499 INFO L460 AbstractCegarLoop]: Interpolant automaton has 79 states. [2018-04-10 17:08:24,499 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 93 transitions. [2018-04-10 17:08:24,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-04-10 17:08:24,499 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:08:24,499 INFO L355 BasicCegarLoop]: trace histogram [75, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:08:24,499 INFO L408 AbstractCegarLoop]: === Iteration 78 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:08:24,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1979595365, now seen corresponding path program 75 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:08:24,501 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:08:24,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:24,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:24,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:25,866 INFO L134 CoverageAnalysis]: Checked inductivity of 2850 backedges. 0 proven. 2850 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:25,882 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:08:25,882 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [80] total 80 [2018-04-10 17:08:25,882 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:08:25,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:25,882 INFO L182 omatonBuilderFactory]: Interpolants [21139#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 21140#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 21141#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 21142#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 21143#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 21144#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 21145#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 21146#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 21147#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 21148#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 21149#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 21150#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 21151#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 21152#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 21153#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 21154#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 21155#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 21156#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 21157#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 21158#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 21159#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 21160#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 21161#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 21162#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 21163#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 21164#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 21165#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 21166#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 21167#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 21168#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 21169#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 21170#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 21171#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 21172#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 21173#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 21174#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 21175#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 21176#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 21177#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 21178#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 21179#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 21180#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 21181#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 21054#true, 21182#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 21055#false, 21183#(<= |#Ultimate.C_memset_#t~loopctr5| 43), 21184#(<= |#Ultimate.C_memset_#t~loopctr5| 44), 21185#(<= |#Ultimate.C_memset_#t~loopctr5| 45), 21186#(<= |#Ultimate.C_memset_#t~loopctr5| 46), 21187#(<= |#Ultimate.C_memset_#t~loopctr5| 47), 21188#(<= |#Ultimate.C_memset_#t~loopctr5| 48), 21189#(<= |#Ultimate.C_memset_#t~loopctr5| 49), 21190#(<= |#Ultimate.C_memset_#t~loopctr5| 50), 21191#(<= |#Ultimate.C_memset_#t~loopctr5| 51), 21192#(<= |#Ultimate.C_memset_#t~loopctr5| 52), 21193#(<= |#Ultimate.C_memset_#t~loopctr5| 53), 21194#(<= |#Ultimate.C_memset_#t~loopctr5| 54), 21195#(<= |#Ultimate.C_memset_#t~loopctr5| 55), 21196#(<= |#Ultimate.C_memset_#t~loopctr5| 56), 21197#(<= |#Ultimate.C_memset_#t~loopctr5| 57), 21198#(<= |#Ultimate.C_memset_#t~loopctr5| 58), 21199#(<= |#Ultimate.C_memset_#t~loopctr5| 59), 21200#(<= |#Ultimate.C_memset_#t~loopctr5| 60), 21201#(<= |#Ultimate.C_memset_#t~loopctr5| 61), 21202#(<= |#Ultimate.C_memset_#t~loopctr5| 62), 21203#(<= |#Ultimate.C_memset_#t~loopctr5| 63), 21204#(<= |#Ultimate.C_memset_#t~loopctr5| 64), 21205#(<= |#Ultimate.C_memset_#t~loopctr5| 65), 21206#(<= |#Ultimate.C_memset_#t~loopctr5| 66), 21207#(<= |#Ultimate.C_memset_#t~loopctr5| 67), 21208#(<= |#Ultimate.C_memset_#t~loopctr5| 68), 21209#(<= |#Ultimate.C_memset_#t~loopctr5| 69), 21210#(<= |#Ultimate.C_memset_#t~loopctr5| 70), 21211#(<= |#Ultimate.C_memset_#t~loopctr5| 71), 21212#(<= |#Ultimate.C_memset_#t~loopctr5| 72), 21213#(<= |#Ultimate.C_memset_#t~loopctr5| 73), 21214#(<= |#Ultimate.C_memset_#t~loopctr5| 74), 21215#(<= |#Ultimate.C_memset_#t~loopctr5| 75), 21216#(not (= 80 |#Ultimate.C_memset_#amount|))] [2018-04-10 17:08:25,883 INFO L134 CoverageAnalysis]: Checked inductivity of 2850 backedges. 0 proven. 2850 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:25,883 INFO L442 AbstractCegarLoop]: Interpolant automaton has 80 states [2018-04-10 17:08:25,883 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2018-04-10 17:08:25,883 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3006, Invalid=3314, Unknown=0, NotChecked=0, Total=6320 [2018-04-10 17:08:25,883 INFO L87 Difference]: Start difference. First operand 93 states and 93 transitions. Second operand 80 states. [2018-04-10 17:08:27,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:08:27,726 INFO L93 Difference]: Finished difference Result 96 states and 96 transitions. [2018-04-10 17:08:27,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2018-04-10 17:08:27,726 INFO L78 Accepts]: Start accepts. Automaton has 80 states. Word has length 92 [2018-04-10 17:08:27,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:08:27,727 INFO L225 Difference]: With dead ends: 96 [2018-04-10 17:08:27,727 INFO L226 Difference]: Without dead ends: 94 [2018-04-10 17:08:27,727 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2999 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=9014, Invalid=15478, Unknown=0, NotChecked=0, Total=24492 [2018-04-10 17:08:27,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2018-04-10 17:08:27,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2018-04-10 17:08:27,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2018-04-10 17:08:27,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 94 transitions. [2018-04-10 17:08:27,728 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 94 transitions. Word has length 92 [2018-04-10 17:08:27,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:08:27,728 INFO L459 AbstractCegarLoop]: Abstraction has 94 states and 94 transitions. [2018-04-10 17:08:27,728 INFO L460 AbstractCegarLoop]: Interpolant automaton has 80 states. [2018-04-10 17:08:27,729 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 94 transitions. [2018-04-10 17:08:27,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-04-10 17:08:27,729 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:08:27,729 INFO L355 BasicCegarLoop]: trace histogram [76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:08:27,729 INFO L408 AbstractCegarLoop]: === Iteration 79 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:08:27,729 INFO L82 PathProgramCache]: Analyzing trace with hash -1850820676, now seen corresponding path program 76 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 80 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 80 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:08:27,731 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:08:27,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:27,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:29,089 INFO L134 CoverageAnalysis]: Checked inductivity of 2926 backedges. 0 proven. 2926 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:29,105 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:08:29,105 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [81] total 81 [2018-04-10 17:08:29,105 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:08:29,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:29,106 INFO L182 omatonBuilderFactory]: Interpolants [21647#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 21648#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 21649#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 21650#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 21651#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 21652#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 21653#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 21654#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 21655#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 21656#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 21657#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 21658#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 21659#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 21660#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 21661#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 21662#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 21663#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 21664#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 21665#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 21666#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 21667#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 21668#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 21669#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 21670#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 21671#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 21672#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 21673#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 21674#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 21675#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 21676#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 21677#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 21678#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 21679#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 21680#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 21681#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 21682#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 21683#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 21684#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 21685#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 21686#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 21687#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 21688#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 21561#true, 21689#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 21562#false, 21690#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 21691#(<= |#Ultimate.C_memset_#t~loopctr5| 43), 21692#(<= |#Ultimate.C_memset_#t~loopctr5| 44), 21693#(<= |#Ultimate.C_memset_#t~loopctr5| 45), 21694#(<= |#Ultimate.C_memset_#t~loopctr5| 46), 21695#(<= |#Ultimate.C_memset_#t~loopctr5| 47), 21696#(<= |#Ultimate.C_memset_#t~loopctr5| 48), 21697#(<= |#Ultimate.C_memset_#t~loopctr5| 49), 21698#(<= |#Ultimate.C_memset_#t~loopctr5| 50), 21699#(<= |#Ultimate.C_memset_#t~loopctr5| 51), 21700#(<= |#Ultimate.C_memset_#t~loopctr5| 52), 21701#(<= |#Ultimate.C_memset_#t~loopctr5| 53), 21702#(<= |#Ultimate.C_memset_#t~loopctr5| 54), 21703#(<= |#Ultimate.C_memset_#t~loopctr5| 55), 21704#(<= |#Ultimate.C_memset_#t~loopctr5| 56), 21705#(<= |#Ultimate.C_memset_#t~loopctr5| 57), 21706#(<= |#Ultimate.C_memset_#t~loopctr5| 58), 21707#(<= |#Ultimate.C_memset_#t~loopctr5| 59), 21708#(<= |#Ultimate.C_memset_#t~loopctr5| 60), 21709#(<= |#Ultimate.C_memset_#t~loopctr5| 61), 21710#(<= |#Ultimate.C_memset_#t~loopctr5| 62), 21711#(<= |#Ultimate.C_memset_#t~loopctr5| 63), 21712#(<= |#Ultimate.C_memset_#t~loopctr5| 64), 21713#(<= |#Ultimate.C_memset_#t~loopctr5| 65), 21714#(<= |#Ultimate.C_memset_#t~loopctr5| 66), 21715#(<= |#Ultimate.C_memset_#t~loopctr5| 67), 21716#(<= |#Ultimate.C_memset_#t~loopctr5| 68), 21717#(<= |#Ultimate.C_memset_#t~loopctr5| 69), 21718#(<= |#Ultimate.C_memset_#t~loopctr5| 70), 21719#(<= |#Ultimate.C_memset_#t~loopctr5| 71), 21720#(<= |#Ultimate.C_memset_#t~loopctr5| 72), 21721#(<= |#Ultimate.C_memset_#t~loopctr5| 73), 21722#(<= |#Ultimate.C_memset_#t~loopctr5| 74), 21723#(<= |#Ultimate.C_memset_#t~loopctr5| 75), 21724#(<= |#Ultimate.C_memset_#t~loopctr5| 76), 21725#(not (= 80 |#Ultimate.C_memset_#amount|))] [2018-04-10 17:08:29,106 INFO L134 CoverageAnalysis]: Checked inductivity of 2926 backedges. 0 proven. 2926 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:29,106 INFO L442 AbstractCegarLoop]: Interpolant automaton has 81 states [2018-04-10 17:08:29,106 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2018-04-10 17:08:29,107 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3084, Invalid=3396, Unknown=0, NotChecked=0, Total=6480 [2018-04-10 17:08:29,107 INFO L87 Difference]: Start difference. First operand 94 states and 94 transitions. Second operand 81 states. [2018-04-10 17:08:30,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:08:30,969 INFO L93 Difference]: Finished difference Result 97 states and 97 transitions. [2018-04-10 17:08:30,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2018-04-10 17:08:30,970 INFO L78 Accepts]: Start accepts. Automaton has 81 states. Word has length 93 [2018-04-10 17:08:30,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:08:30,970 INFO L225 Difference]: With dead ends: 97 [2018-04-10 17:08:30,970 INFO L226 Difference]: Without dead ends: 95 [2018-04-10 17:08:30,970 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3077 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=9248, Invalid=15874, Unknown=0, NotChecked=0, Total=25122 [2018-04-10 17:08:30,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2018-04-10 17:08:30,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2018-04-10 17:08:30,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2018-04-10 17:08:30,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 95 transitions. [2018-04-10 17:08:30,971 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 95 transitions. Word has length 93 [2018-04-10 17:08:30,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:08:30,972 INFO L459 AbstractCegarLoop]: Abstraction has 95 states and 95 transitions. [2018-04-10 17:08:30,972 INFO L460 AbstractCegarLoop]: Interpolant automaton has 81 states. [2018-04-10 17:08:30,972 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 95 transitions. [2018-04-10 17:08:30,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-04-10 17:08:30,972 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:08:30,972 INFO L355 BasicCegarLoop]: trace histogram [77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:08:30,972 INFO L408 AbstractCegarLoop]: === Iteration 80 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:08:30,972 INFO L82 PathProgramCache]: Analyzing trace with hash 2141194683, now seen corresponding path program 77 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 81 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 81 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:08:30,974 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:08:30,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:31,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:31,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:32,391 INFO L134 CoverageAnalysis]: Checked inductivity of 3003 backedges. 0 proven. 3003 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:32,407 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:08:32,407 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [82] total 82 [2018-04-10 17:08:32,407 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:08:32,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:32,408 INFO L182 omatonBuilderFactory]: Interpolants [22161#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 22162#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 22163#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 22164#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 22165#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 22166#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 22167#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 22168#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 22169#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 22170#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 22171#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 22172#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 22173#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 22174#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 22175#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 22176#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 22177#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 22178#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 22179#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 22180#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 22181#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 22182#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 22183#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 22184#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 22185#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 22186#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 22187#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 22188#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 22189#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 22190#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 22191#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 22192#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 22193#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 22194#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 22195#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 22196#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 22197#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 22198#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 22199#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 22200#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 22201#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 22074#true, 22202#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 22075#false, 22203#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 22204#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 22205#(<= |#Ultimate.C_memset_#t~loopctr5| 43), 22206#(<= |#Ultimate.C_memset_#t~loopctr5| 44), 22207#(<= |#Ultimate.C_memset_#t~loopctr5| 45), 22208#(<= |#Ultimate.C_memset_#t~loopctr5| 46), 22209#(<= |#Ultimate.C_memset_#t~loopctr5| 47), 22210#(<= |#Ultimate.C_memset_#t~loopctr5| 48), 22211#(<= |#Ultimate.C_memset_#t~loopctr5| 49), 22212#(<= |#Ultimate.C_memset_#t~loopctr5| 50), 22213#(<= |#Ultimate.C_memset_#t~loopctr5| 51), 22214#(<= |#Ultimate.C_memset_#t~loopctr5| 52), 22215#(<= |#Ultimate.C_memset_#t~loopctr5| 53), 22216#(<= |#Ultimate.C_memset_#t~loopctr5| 54), 22217#(<= |#Ultimate.C_memset_#t~loopctr5| 55), 22218#(<= |#Ultimate.C_memset_#t~loopctr5| 56), 22219#(<= |#Ultimate.C_memset_#t~loopctr5| 57), 22220#(<= |#Ultimate.C_memset_#t~loopctr5| 58), 22221#(<= |#Ultimate.C_memset_#t~loopctr5| 59), 22222#(<= |#Ultimate.C_memset_#t~loopctr5| 60), 22223#(<= |#Ultimate.C_memset_#t~loopctr5| 61), 22224#(<= |#Ultimate.C_memset_#t~loopctr5| 62), 22225#(<= |#Ultimate.C_memset_#t~loopctr5| 63), 22226#(<= |#Ultimate.C_memset_#t~loopctr5| 64), 22227#(<= |#Ultimate.C_memset_#t~loopctr5| 65), 22228#(<= |#Ultimate.C_memset_#t~loopctr5| 66), 22229#(<= |#Ultimate.C_memset_#t~loopctr5| 67), 22230#(<= |#Ultimate.C_memset_#t~loopctr5| 68), 22231#(<= |#Ultimate.C_memset_#t~loopctr5| 69), 22232#(<= |#Ultimate.C_memset_#t~loopctr5| 70), 22233#(<= |#Ultimate.C_memset_#t~loopctr5| 71), 22234#(<= |#Ultimate.C_memset_#t~loopctr5| 72), 22235#(<= |#Ultimate.C_memset_#t~loopctr5| 73), 22236#(<= |#Ultimate.C_memset_#t~loopctr5| 74), 22237#(<= |#Ultimate.C_memset_#t~loopctr5| 75), 22238#(<= |#Ultimate.C_memset_#t~loopctr5| 76), 22239#(<= |#Ultimate.C_memset_#t~loopctr5| 77), 22240#(not (= 80 |#Ultimate.C_memset_#amount|))] [2018-04-10 17:08:32,408 INFO L134 CoverageAnalysis]: Checked inductivity of 3003 backedges. 0 proven. 3003 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:32,408 INFO L442 AbstractCegarLoop]: Interpolant automaton has 82 states [2018-04-10 17:08:32,408 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2018-04-10 17:08:32,408 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3163, Invalid=3479, Unknown=0, NotChecked=0, Total=6642 [2018-04-10 17:08:32,408 INFO L87 Difference]: Start difference. First operand 95 states and 95 transitions. Second operand 82 states. [2018-04-10 17:08:34,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:08:34,329 INFO L93 Difference]: Finished difference Result 98 states and 98 transitions. [2018-04-10 17:08:34,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2018-04-10 17:08:34,329 INFO L78 Accepts]: Start accepts. Automaton has 82 states. Word has length 94 [2018-04-10 17:08:34,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:08:34,329 INFO L225 Difference]: With dead ends: 98 [2018-04-10 17:08:34,329 INFO L226 Difference]: Without dead ends: 96 [2018-04-10 17:08:34,330 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3156 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=9485, Invalid=16275, Unknown=0, NotChecked=0, Total=25760 [2018-04-10 17:08:34,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-04-10 17:08:34,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2018-04-10 17:08:34,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-04-10 17:08:34,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 96 transitions. [2018-04-10 17:08:34,331 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 96 transitions. Word has length 94 [2018-04-10 17:08:34,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:08:34,331 INFO L459 AbstractCegarLoop]: Abstraction has 96 states and 96 transitions. [2018-04-10 17:08:34,331 INFO L460 AbstractCegarLoop]: Interpolant automaton has 82 states. [2018-04-10 17:08:34,331 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 96 transitions. [2018-04-10 17:08:34,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-04-10 17:08:34,332 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:08:34,332 INFO L355 BasicCegarLoop]: trace histogram [78, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:08:34,332 INFO L408 AbstractCegarLoop]: === Iteration 81 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:08:34,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1339619228, now seen corresponding path program 78 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:08:34,339 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:08:34,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:34,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:34,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:35,758 INFO L134 CoverageAnalysis]: Checked inductivity of 3081 backedges. 0 proven. 3081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:35,774 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:08:35,774 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [83] total 83 [2018-04-10 17:08:35,774 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:08:35,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:35,775 INFO L182 omatonBuilderFactory]: Interpolants [22681#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 22682#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 22683#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 22684#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 22685#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 22686#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 22687#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 22688#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 22689#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 22690#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 22691#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 22692#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 22693#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 22694#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 22695#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 22696#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 22697#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 22698#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 22699#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 22700#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 22701#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 22702#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 22703#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 22704#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 22705#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 22706#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 22707#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 22708#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 22709#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 22710#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 22711#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 22712#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 22713#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 22714#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 22715#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 22716#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 22717#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 22718#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 22719#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 22720#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 22593#true, 22721#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 22594#false, 22722#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 22723#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 22724#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 22725#(<= |#Ultimate.C_memset_#t~loopctr5| 43), 22726#(<= |#Ultimate.C_memset_#t~loopctr5| 44), 22727#(<= |#Ultimate.C_memset_#t~loopctr5| 45), 22728#(<= |#Ultimate.C_memset_#t~loopctr5| 46), 22729#(<= |#Ultimate.C_memset_#t~loopctr5| 47), 22730#(<= |#Ultimate.C_memset_#t~loopctr5| 48), 22731#(<= |#Ultimate.C_memset_#t~loopctr5| 49), 22732#(<= |#Ultimate.C_memset_#t~loopctr5| 50), 22733#(<= |#Ultimate.C_memset_#t~loopctr5| 51), 22734#(<= |#Ultimate.C_memset_#t~loopctr5| 52), 22735#(<= |#Ultimate.C_memset_#t~loopctr5| 53), 22736#(<= |#Ultimate.C_memset_#t~loopctr5| 54), 22737#(<= |#Ultimate.C_memset_#t~loopctr5| 55), 22738#(<= |#Ultimate.C_memset_#t~loopctr5| 56), 22739#(<= |#Ultimate.C_memset_#t~loopctr5| 57), 22740#(<= |#Ultimate.C_memset_#t~loopctr5| 58), 22741#(<= |#Ultimate.C_memset_#t~loopctr5| 59), 22742#(<= |#Ultimate.C_memset_#t~loopctr5| 60), 22743#(<= |#Ultimate.C_memset_#t~loopctr5| 61), 22744#(<= |#Ultimate.C_memset_#t~loopctr5| 62), 22745#(<= |#Ultimate.C_memset_#t~loopctr5| 63), 22746#(<= |#Ultimate.C_memset_#t~loopctr5| 64), 22747#(<= |#Ultimate.C_memset_#t~loopctr5| 65), 22748#(<= |#Ultimate.C_memset_#t~loopctr5| 66), 22749#(<= |#Ultimate.C_memset_#t~loopctr5| 67), 22750#(<= |#Ultimate.C_memset_#t~loopctr5| 68), 22751#(<= |#Ultimate.C_memset_#t~loopctr5| 69), 22752#(<= |#Ultimate.C_memset_#t~loopctr5| 70), 22753#(<= |#Ultimate.C_memset_#t~loopctr5| 71), 22754#(<= |#Ultimate.C_memset_#t~loopctr5| 72), 22755#(<= |#Ultimate.C_memset_#t~loopctr5| 73), 22756#(<= |#Ultimate.C_memset_#t~loopctr5| 74), 22757#(<= |#Ultimate.C_memset_#t~loopctr5| 75), 22758#(<= |#Ultimate.C_memset_#t~loopctr5| 76), 22759#(<= |#Ultimate.C_memset_#t~loopctr5| 77), 22760#(<= |#Ultimate.C_memset_#t~loopctr5| 78), 22761#(not (= 80 |#Ultimate.C_memset_#amount|))] [2018-04-10 17:08:35,775 INFO L134 CoverageAnalysis]: Checked inductivity of 3081 backedges. 0 proven. 3081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:35,775 INFO L442 AbstractCegarLoop]: Interpolant automaton has 83 states [2018-04-10 17:08:35,775 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2018-04-10 17:08:35,775 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3243, Invalid=3563, Unknown=0, NotChecked=0, Total=6806 [2018-04-10 17:08:35,775 INFO L87 Difference]: Start difference. First operand 96 states and 96 transitions. Second operand 83 states. [2018-04-10 17:08:37,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:08:37,727 INFO L93 Difference]: Finished difference Result 99 states and 99 transitions. [2018-04-10 17:08:37,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2018-04-10 17:08:37,727 INFO L78 Accepts]: Start accepts. Automaton has 83 states. Word has length 95 [2018-04-10 17:08:37,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:08:37,727 INFO L225 Difference]: With dead ends: 99 [2018-04-10 17:08:37,728 INFO L226 Difference]: Without dead ends: 97 [2018-04-10 17:08:37,728 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3236 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=9725, Invalid=16681, Unknown=0, NotChecked=0, Total=26406 [2018-04-10 17:08:37,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2018-04-10 17:08:37,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2018-04-10 17:08:37,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-04-10 17:08:37,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 97 transitions. [2018-04-10 17:08:37,729 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 97 transitions. Word has length 95 [2018-04-10 17:08:37,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:08:37,729 INFO L459 AbstractCegarLoop]: Abstraction has 97 states and 97 transitions. [2018-04-10 17:08:37,729 INFO L460 AbstractCegarLoop]: Interpolant automaton has 83 states. [2018-04-10 17:08:37,729 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 97 transitions. [2018-04-10 17:08:37,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-04-10 17:08:37,729 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:08:37,730 INFO L355 BasicCegarLoop]: trace histogram [79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:08:37,730 INFO L408 AbstractCegarLoop]: === Iteration 82 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:08:37,730 INFO L82 PathProgramCache]: Analyzing trace with hash -2034383397, now seen corresponding path program 79 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 83 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 83 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:08:37,732 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:08:37,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:37,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:39,203 INFO L134 CoverageAnalysis]: Checked inductivity of 3160 backedges. 0 proven. 3160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:39,219 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 17:08:39,220 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [84] total 84 [2018-04-10 17:08:39,220 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:08:39,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:39,220 INFO L182 omatonBuilderFactory]: Interpolants [23207#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 23208#(= 0 |#Ultimate.C_memset_#t~loopctr5|), 23209#(= 1 |#Ultimate.C_memset_#t~loopctr5|), 23210#(<= |#Ultimate.C_memset_#t~loopctr5| 2), 23211#(<= |#Ultimate.C_memset_#t~loopctr5| 3), 23212#(<= |#Ultimate.C_memset_#t~loopctr5| 4), 23213#(<= |#Ultimate.C_memset_#t~loopctr5| 5), 23214#(<= |#Ultimate.C_memset_#t~loopctr5| 6), 23215#(<= |#Ultimate.C_memset_#t~loopctr5| 7), 23216#(<= |#Ultimate.C_memset_#t~loopctr5| 8), 23217#(<= |#Ultimate.C_memset_#t~loopctr5| 9), 23218#(<= |#Ultimate.C_memset_#t~loopctr5| 10), 23219#(<= |#Ultimate.C_memset_#t~loopctr5| 11), 23220#(<= |#Ultimate.C_memset_#t~loopctr5| 12), 23221#(<= |#Ultimate.C_memset_#t~loopctr5| 13), 23222#(<= |#Ultimate.C_memset_#t~loopctr5| 14), 23223#(<= |#Ultimate.C_memset_#t~loopctr5| 15), 23224#(<= |#Ultimate.C_memset_#t~loopctr5| 16), 23225#(<= |#Ultimate.C_memset_#t~loopctr5| 17), 23226#(<= |#Ultimate.C_memset_#t~loopctr5| 18), 23227#(<= |#Ultimate.C_memset_#t~loopctr5| 19), 23228#(<= |#Ultimate.C_memset_#t~loopctr5| 20), 23229#(<= |#Ultimate.C_memset_#t~loopctr5| 21), 23230#(<= |#Ultimate.C_memset_#t~loopctr5| 22), 23231#(<= |#Ultimate.C_memset_#t~loopctr5| 23), 23232#(<= |#Ultimate.C_memset_#t~loopctr5| 24), 23233#(<= |#Ultimate.C_memset_#t~loopctr5| 25), 23234#(<= |#Ultimate.C_memset_#t~loopctr5| 26), 23235#(<= |#Ultimate.C_memset_#t~loopctr5| 27), 23236#(<= |#Ultimate.C_memset_#t~loopctr5| 28), 23237#(<= |#Ultimate.C_memset_#t~loopctr5| 29), 23238#(<= |#Ultimate.C_memset_#t~loopctr5| 30), 23239#(<= |#Ultimate.C_memset_#t~loopctr5| 31), 23240#(<= |#Ultimate.C_memset_#t~loopctr5| 32), 23241#(<= |#Ultimate.C_memset_#t~loopctr5| 33), 23242#(<= |#Ultimate.C_memset_#t~loopctr5| 34), 23243#(<= |#Ultimate.C_memset_#t~loopctr5| 35), 23244#(<= |#Ultimate.C_memset_#t~loopctr5| 36), 23245#(<= |#Ultimate.C_memset_#t~loopctr5| 37), 23118#true, 23246#(<= |#Ultimate.C_memset_#t~loopctr5| 38), 23119#false, 23247#(<= |#Ultimate.C_memset_#t~loopctr5| 39), 23248#(<= |#Ultimate.C_memset_#t~loopctr5| 40), 23249#(<= |#Ultimate.C_memset_#t~loopctr5| 41), 23250#(<= |#Ultimate.C_memset_#t~loopctr5| 42), 23251#(<= |#Ultimate.C_memset_#t~loopctr5| 43), 23252#(<= |#Ultimate.C_memset_#t~loopctr5| 44), 23253#(<= |#Ultimate.C_memset_#t~loopctr5| 45), 23254#(<= |#Ultimate.C_memset_#t~loopctr5| 46), 23255#(<= |#Ultimate.C_memset_#t~loopctr5| 47), 23256#(<= |#Ultimate.C_memset_#t~loopctr5| 48), 23257#(<= |#Ultimate.C_memset_#t~loopctr5| 49), 23258#(<= |#Ultimate.C_memset_#t~loopctr5| 50), 23259#(<= |#Ultimate.C_memset_#t~loopctr5| 51), 23260#(<= |#Ultimate.C_memset_#t~loopctr5| 52), 23261#(<= |#Ultimate.C_memset_#t~loopctr5| 53), 23262#(<= |#Ultimate.C_memset_#t~loopctr5| 54), 23263#(<= |#Ultimate.C_memset_#t~loopctr5| 55), 23264#(<= |#Ultimate.C_memset_#t~loopctr5| 56), 23265#(<= |#Ultimate.C_memset_#t~loopctr5| 57), 23266#(<= |#Ultimate.C_memset_#t~loopctr5| 58), 23267#(<= |#Ultimate.C_memset_#t~loopctr5| 59), 23268#(<= |#Ultimate.C_memset_#t~loopctr5| 60), 23269#(<= |#Ultimate.C_memset_#t~loopctr5| 61), 23270#(<= |#Ultimate.C_memset_#t~loopctr5| 62), 23271#(<= |#Ultimate.C_memset_#t~loopctr5| 63), 23272#(<= |#Ultimate.C_memset_#t~loopctr5| 64), 23273#(<= |#Ultimate.C_memset_#t~loopctr5| 65), 23274#(<= |#Ultimate.C_memset_#t~loopctr5| 66), 23275#(<= |#Ultimate.C_memset_#t~loopctr5| 67), 23276#(<= |#Ultimate.C_memset_#t~loopctr5| 68), 23277#(<= |#Ultimate.C_memset_#t~loopctr5| 69), 23278#(<= |#Ultimate.C_memset_#t~loopctr5| 70), 23279#(<= |#Ultimate.C_memset_#t~loopctr5| 71), 23280#(<= |#Ultimate.C_memset_#t~loopctr5| 72), 23281#(<= |#Ultimate.C_memset_#t~loopctr5| 73), 23282#(<= |#Ultimate.C_memset_#t~loopctr5| 74), 23283#(<= |#Ultimate.C_memset_#t~loopctr5| 75), 23284#(<= |#Ultimate.C_memset_#t~loopctr5| 76), 23285#(<= |#Ultimate.C_memset_#t~loopctr5| 77), 23286#(<= |#Ultimate.C_memset_#t~loopctr5| 78), 23287#(<= |#Ultimate.C_memset_#t~loopctr5| 79), 23288#(not (= 80 |#Ultimate.C_memset_#amount|))] [2018-04-10 17:08:39,220 INFO L134 CoverageAnalysis]: Checked inductivity of 3160 backedges. 0 proven. 3160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 17:08:39,220 INFO L442 AbstractCegarLoop]: Interpolant automaton has 84 states [2018-04-10 17:08:39,221 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2018-04-10 17:08:39,221 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3324, Invalid=3648, Unknown=0, NotChecked=0, Total=6972 [2018-04-10 17:08:39,221 INFO L87 Difference]: Start difference. First operand 97 states and 97 transitions. Second operand 84 states. [2018-04-10 17:08:41,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:08:41,245 INFO L93 Difference]: Finished difference Result 100 states and 100 transitions. [2018-04-10 17:08:41,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2018-04-10 17:08:41,245 INFO L78 Accepts]: Start accepts. Automaton has 84 states. Word has length 96 [2018-04-10 17:08:41,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:08:41,245 INFO L225 Difference]: With dead ends: 100 [2018-04-10 17:08:41,245 INFO L226 Difference]: Without dead ends: 98 [2018-04-10 17:08:41,246 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3317 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=9968, Invalid=17092, Unknown=0, NotChecked=0, Total=27060 [2018-04-10 17:08:41,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-04-10 17:08:41,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2018-04-10 17:08:41,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-04-10 17:08:41,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 98 transitions. [2018-04-10 17:08:41,247 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 98 transitions. Word has length 96 [2018-04-10 17:08:41,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:08:41,247 INFO L459 AbstractCegarLoop]: Abstraction has 98 states and 98 transitions. [2018-04-10 17:08:41,247 INFO L460 AbstractCegarLoop]: Interpolant automaton has 84 states. [2018-04-10 17:08:41,247 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 98 transitions. [2018-04-10 17:08:41,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-04-10 17:08:41,248 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:08:41,248 INFO L355 BasicCegarLoop]: trace histogram [80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:08:41,248 INFO L408 AbstractCegarLoop]: === Iteration 83 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 17:08:41,248 INFO L82 PathProgramCache]: Analyzing trace with hash 745717628, now seen corresponding path program 80 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 84 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 84 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:08:41,250 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:08:41,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:08:41,271 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier WARNING: array quantifier WARNING: array quantifier WARNING: array quantifier [2018-04-10 17:08:41,272 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Undeclared function symbol (array-ext (Array Int Int) (Array Int Int)) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:321) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.createTerm(Parser.java:802) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1304) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseInterpolants(Executor.java:255) at de.uni_freiburg.informatik.ultimate.smtsolver.external.ScriptorWithGetInterpolants.readInterpolants(ScriptorWithGetInterpolants.java:136) at de.uni_freiburg.informatik.ultimate.smtsolver.external.ScriptorWithGetInterpolants.getInterpolants(ScriptorWithGetInterpolants.java:64) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.getInterpolants(DiffWrapperScript.java:260) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:186) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:283) 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.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:298) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:200) 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.FixedRefinementStrategy.getTraceCheck(FixedRefinementStrategy.java:131) 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:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:408) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:417) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:363) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:118) 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) [2018-04-10 17:08:41,274 INFO L168 Benchmark]: Toolchain (without parser) took 108986.18 ms. Allocated memory was 404.8 MB in the beginning and 690.5 MB in the end (delta: 285.7 MB). Free memory was 344.5 MB in the beginning and 382.1 MB in the end (delta: -37.6 MB). Peak memory consumption was 248.1 MB. Max. memory is 5.3 GB. [2018-04-10 17:08:41,275 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 404.8 MB. Free memory is still 363.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-10 17:08:41,275 INFO L168 Benchmark]: CACSL2BoogieTranslator took 158.75 ms. Allocated memory is still 404.8 MB. Free memory was 343.2 MB in the beginning and 333.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 5.3 GB. [2018-04-10 17:08:41,275 INFO L168 Benchmark]: Boogie Preprocessor took 19.40 ms. Allocated memory is still 404.8 MB. Free memory was 333.9 MB in the beginning and 332.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-04-10 17:08:41,275 INFO L168 Benchmark]: RCFGBuilder took 195.76 ms. Allocated memory was 404.8 MB in the beginning and 618.1 MB in the end (delta: 213.4 MB). Free memory was 332.6 MB in the beginning and 585.5 MB in the end (delta: -252.9 MB). Peak memory consumption was 26.2 MB. Max. memory is 5.3 GB. [2018-04-10 17:08:41,275 INFO L168 Benchmark]: TraceAbstraction took 108609.90 ms. Allocated memory was 618.1 MB in the beginning and 690.5 MB in the end (delta: 72.4 MB). Free memory was 585.5 MB in the beginning and 382.1 MB in the end (delta: 203.4 MB). Peak memory consumption was 275.8 MB. Max. memory is 5.3 GB. [2018-04-10 17:08:41,281 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 404.8 MB. Free memory is still 363.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 158.75 ms. Allocated memory is still 404.8 MB. Free memory was 343.2 MB in the beginning and 333.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 19.40 ms. Allocated memory is still 404.8 MB. Free memory was 333.9 MB in the beginning and 332.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 195.76 ms. Allocated memory was 404.8 MB in the beginning and 618.1 MB in the end (delta: 213.4 MB). Free memory was 332.6 MB in the beginning and 585.5 MB in the end (delta: -252.9 MB). Peak memory consumption was 26.2 MB. Max. memory is 5.3 GB. * TraceAbstraction took 108609.90 ms. Allocated memory was 618.1 MB in the beginning and 690.5 MB in the end (delta: 72.4 MB). Free memory was 585.5 MB in the beginning and 382.1 MB in the end (delta: 203.4 MB). Peak memory consumption was 275.8 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Undeclared function symbol (array-ext (Array Int Int) (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Undeclared function symbol (array-ext (Array Int Int) (Array Int Int)): de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:321) 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/memsetNonZero3_true-valid-memsafety_true-termination.c_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-10_17-08-41-285.csv Received shutdown request...