java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test1_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c17473d-m [2018-02-04 19:28:03,218 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 19:28:03,219 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 19:28:03,232 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 19:28:03,232 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 19:28:03,233 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 19:28:03,233 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 19:28:03,235 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 19:28:03,237 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 19:28:03,237 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 19:28:03,238 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 19:28:03,238 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 19:28:03,239 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 19:28:03,240 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 19:28:03,241 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 19:28:03,242 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 19:28:03,244 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 19:28:03,245 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 19:28:03,246 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 19:28:03,247 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 19:28:03,249 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 19:28:03,249 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 19:28:03,249 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 19:28:03,250 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 19:28:03,251 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 19:28:03,252 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 19:28:03,252 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 19:28:03,252 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 19:28:03,252 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 19:28:03,252 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 19:28:03,253 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 19:28:03,253 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-02-04 19:28:03,262 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 19:28:03,262 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 19:28:03,263 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 19:28:03,263 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 19:28:03,263 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 19:28:03,263 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 19:28:03,264 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 19:28:03,264 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 19:28:03,264 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 19:28:03,264 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 19:28:03,264 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 19:28:03,264 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 19:28:03,264 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 19:28:03,264 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 19:28:03,264 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 19:28:03,264 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 19:28:03,265 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 19:28:03,265 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 19:28:03,265 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 19:28:03,265 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 19:28:03,265 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 19:28:03,265 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-04 19:28:03,265 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-04 19:28:03,265 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-02-04 19:28:03,290 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 19:28:03,298 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 19:28:03,300 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 19:28:03,301 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 19:28:03,302 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 19:28:03,302 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test1_true-valid-memsafety_true-termination.i [2018-02-04 19:28:03,454 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 19:28:03,455 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 19:28:03,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 19:28:03,456 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 19:28:03,460 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 19:28:03,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 07:28:03" (1/1) ... [2018-02-04 19:28:03,462 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f13972f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:28:03, skipping insertion in model container [2018-02-04 19:28:03,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 07:28:03" (1/1) ... [2018-02-04 19:28:03,473 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 19:28:03,507 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 19:28:03,592 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 19:28:03,601 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 19:28:03,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:28:03 WrapperNode [2018-02-04 19:28:03,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 19:28:03,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 19:28:03,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 19:28:03,606 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 19:28:03,616 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:28:03" (1/1) ... [2018-02-04 19:28:03,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:28:03" (1/1) ... [2018-02-04 19:28:03,621 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:28:03" (1/1) ... [2018-02-04 19:28:03,622 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:28:03" (1/1) ... [2018-02-04 19:28:03,623 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:28:03" (1/1) ... [2018-02-04 19:28:03,625 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:28:03" (1/1) ... [2018-02-04 19:28:03,626 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:28:03" (1/1) ... [2018-02-04 19:28:03,627 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 19:28:03,627 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 19:28:03,627 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 19:28:03,628 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 19:28:03,628 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:28:03" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 19:28:03,670 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 19:28:03,671 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 19:28:03,671 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-02-04 19:28:03,671 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-02-04 19:28:03,671 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 19:28:03,671 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 19:28:03,671 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 19:28:03,671 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 19:28:03,671 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 19:28:03,671 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 19:28:03,671 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 19:28:03,672 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-02-04 19:28:03,672 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-02-04 19:28:03,672 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 19:28:03,672 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 19:28:03,672 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 19:28:03,781 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 19:28:03,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 07:28:03 BoogieIcfgContainer [2018-02-04 19:28:03,781 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 19:28:03,782 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 19:28:03,782 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 19:28:03,785 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 19:28:03,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 07:28:03" (1/3) ... [2018-02-04 19:28:03,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7859d88a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 07:28:03, skipping insertion in model container [2018-02-04 19:28:03,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:28:03" (2/3) ... [2018-02-04 19:28:03,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7859d88a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 07:28:03, skipping insertion in model container [2018-02-04 19:28:03,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 07:28:03" (3/3) ... [2018-02-04 19:28:03,788 INFO L107 eAbstractionObserver]: Analyzing ICFG memleaks_test1_true-valid-memsafety_true-termination.i [2018-02-04 19:28:03,795 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-04 19:28:03,802 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-02-04 19:28:03,837 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 19:28:03,837 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 19:28:03,837 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-04 19:28:03,837 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-04 19:28:03,838 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 19:28:03,838 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 19:28:03,838 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 19:28:03,838 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 19:28:03,839 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 19:28:03,849 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-02-04 19:28:03,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-02-04 19:28:03,858 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:28:03,859 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:28:03,859 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-02-04 19:28:03,863 INFO L82 PathProgramCache]: Analyzing trace with hash 169906871, now seen corresponding path program 1 times [2018-02-04 19:28:03,864 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:28:03,865 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:28:03,908 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:28:03,909 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:28:03,909 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:28:03,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:28:03,946 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:28:04,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:28:04,019 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:28:04,019 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 19:28:04,021 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 19:28:04,029 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 19:28:04,029 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 19:28:04,031 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2018-02-04 19:28:04,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:28:04,103 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2018-02-04 19:28:04,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 19:28:04,105 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-02-04 19:28:04,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:28:04,110 INFO L225 Difference]: With dead ends: 29 [2018-02-04 19:28:04,111 INFO L226 Difference]: Without dead ends: 26 [2018-02-04 19:28:04,112 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 19:28:04,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-02-04 19:28:04,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2018-02-04 19:28:04,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-02-04 19:28:04,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2018-02-04 19:28:04,136 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 13 [2018-02-04 19:28:04,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:28:04,136 INFO L432 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2018-02-04 19:28:04,136 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 19:28:04,136 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2018-02-04 19:28:04,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-02-04 19:28:04,136 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:28:04,136 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:28:04,137 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-02-04 19:28:04,137 INFO L82 PathProgramCache]: Analyzing trace with hash 169906872, now seen corresponding path program 1 times [2018-02-04 19:28:04,137 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:28:04,137 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:28:04,138 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:28:04,138 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:28:04,138 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:28:04,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:28:04,147 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:28:04,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:28:04,183 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:28:04,183 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 19:28:04,184 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 19:28:04,184 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 19:28:04,185 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 19:28:04,185 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 5 states. [2018-02-04 19:28:04,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:28:04,195 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2018-02-04 19:28:04,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 19:28:04,195 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-02-04 19:28:04,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:28:04,197 INFO L225 Difference]: With dead ends: 27 [2018-02-04 19:28:04,197 INFO L226 Difference]: Without dead ends: 27 [2018-02-04 19:28:04,197 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 19:28:04,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-02-04 19:28:04,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2018-02-04 19:28:04,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-02-04 19:28:04,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2018-02-04 19:28:04,200 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 13 [2018-02-04 19:28:04,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:28:04,200 INFO L432 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2018-02-04 19:28:04,200 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 19:28:04,200 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2018-02-04 19:28:04,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-04 19:28:04,201 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:28:04,201 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:28:04,201 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-02-04 19:28:04,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1595862325, now seen corresponding path program 1 times [2018-02-04 19:28:04,201 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:28:04,201 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:28:04,202 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:28:04,202 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:28:04,202 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:28:04,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:28:04,214 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:28:04,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:28:04,261 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:28:04,261 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 19:28:04,262 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 19:28:04,262 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 19:28:04,262 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 19:28:04,262 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 6 states. [2018-02-04 19:28:04,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:28:04,289 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2018-02-04 19:28:04,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 19:28:04,290 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-02-04 19:28:04,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:28:04,291 INFO L225 Difference]: With dead ends: 24 [2018-02-04 19:28:04,291 INFO L226 Difference]: Without dead ends: 24 [2018-02-04 19:28:04,291 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-02-04 19:28:04,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-02-04 19:28:04,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-02-04 19:28:04,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-02-04 19:28:04,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-02-04 19:28:04,294 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 15 [2018-02-04 19:28:04,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:28:04,294 INFO L432 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-02-04 19:28:04,294 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 19:28:04,294 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-02-04 19:28:04,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-04 19:28:04,295 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:28:04,295 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:28:04,295 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-02-04 19:28:04,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1595862326, now seen corresponding path program 1 times [2018-02-04 19:28:04,295 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:28:04,295 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:28:04,296 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:28:04,296 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:28:04,296 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:28:04,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:28:04,305 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:28:04,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:28:04,348 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:28:04,348 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 19:28:04,348 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 19:28:04,349 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 19:28:04,349 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 19:28:04,349 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 6 states. [2018-02-04 19:28:04,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:28:04,393 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2018-02-04 19:28:04,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 19:28:04,394 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-02-04 19:28:04,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:28:04,395 INFO L225 Difference]: With dead ends: 23 [2018-02-04 19:28:04,395 INFO L226 Difference]: Without dead ends: 23 [2018-02-04 19:28:04,395 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-02-04 19:28:04,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-02-04 19:28:04,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2018-02-04 19:28:04,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-02-04 19:28:04,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-02-04 19:28:04,398 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 15 [2018-02-04 19:28:04,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:28:04,398 INFO L432 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2018-02-04 19:28:04,398 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 19:28:04,398 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-02-04 19:28:04,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-02-04 19:28:04,399 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:28:04,399 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:28:04,399 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-02-04 19:28:04,399 INFO L82 PathProgramCache]: Analyzing trace with hash -2070856781, now seen corresponding path program 1 times [2018-02-04 19:28:04,399 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:28:04,399 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:28:04,401 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:28:04,401 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:28:04,401 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:28:04,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:28:04,408 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:28:04,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:28:04,460 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:28:04,461 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 19:28:04,461 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 19:28:04,461 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 19:28:04,461 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-02-04 19:28:04,461 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 6 states. [2018-02-04 19:28:04,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:28:04,491 INFO L93 Difference]: Finished difference Result 26 states and 25 transitions. [2018-02-04 19:28:04,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 19:28:04,491 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-02-04 19:28:04,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:28:04,492 INFO L225 Difference]: With dead ends: 26 [2018-02-04 19:28:04,492 INFO L226 Difference]: Without dead ends: 19 [2018-02-04 19:28:04,492 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-02-04 19:28:04,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-02-04 19:28:04,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-02-04 19:28:04,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-02-04 19:28:04,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2018-02-04 19:28:04,495 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 16 [2018-02-04 19:28:04,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:28:04,495 INFO L432 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2018-02-04 19:28:04,495 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 19:28:04,495 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2018-02-04 19:28:04,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-02-04 19:28:04,495 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:28:04,495 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:28:04,495 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-02-04 19:28:04,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1341515893, now seen corresponding path program 1 times [2018-02-04 19:28:04,496 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:28:04,496 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:28:04,497 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:28:04,497 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:28:04,497 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:28:04,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:28:04,509 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:28:04,514 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 19:28:04,515 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:28:04,515 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:28:04,516 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:28:04,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:28:04,542 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:28:04,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:28:04,619 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:28:04,619 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-04 19:28:04,620 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-04 19:28:04,620 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-04 19:28:04,620 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=38, Unknown=4, NotChecked=0, Total=56 [2018-02-04 19:28:04,620 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand 8 states. [2018-02-04 19:28:04,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:28:04,689 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-02-04 19:28:04,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-04 19:28:04,689 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2018-02-04 19:28:04,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:28:04,690 INFO L225 Difference]: With dead ends: 18 [2018-02-04 19:28:04,690 INFO L226 Difference]: Without dead ends: 0 [2018-02-04 19:28:04,690 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=50, Unknown=4, NotChecked=0, Total=72 [2018-02-04 19:28:04,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-02-04 19:28:04,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-02-04 19:28:04,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-02-04 19:28:04,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-02-04 19:28:04,691 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2018-02-04 19:28:04,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:28:04,691 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-02-04 19:28:04,691 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-04 19:28:04,691 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-02-04 19:28:04,691 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-02-04 19:28:04,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.02 07:28:04 BoogieIcfgContainer [2018-02-04 19:28:04,694 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-04 19:28:04,695 INFO L168 Benchmark]: Toolchain (without parser) took 1240.57 ms. Allocated memory was 399.0 MB in the beginning and 601.4 MB in the end (delta: 202.4 MB). Free memory was 355.9 MB in the beginning and 493.2 MB in the end (delta: -137.3 MB). Peak memory consumption was 65.0 MB. Max. memory is 5.3 GB. [2018-02-04 19:28:04,696 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 399.0 MB. Free memory is still 362.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 19:28:04,696 INFO L168 Benchmark]: CACSL2BoogieTranslator took 150.13 ms. Allocated memory is still 399.0 MB. Free memory was 355.9 MB in the beginning and 344.0 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. [2018-02-04 19:28:04,696 INFO L168 Benchmark]: Boogie Preprocessor took 21.19 ms. Allocated memory is still 399.0 MB. Free memory was 344.0 MB in the beginning and 341.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-04 19:28:04,696 INFO L168 Benchmark]: RCFGBuilder took 154.10 ms. Allocated memory is still 399.0 MB. Free memory was 341.3 MB in the beginning and 328.6 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 5.3 GB. [2018-02-04 19:28:04,697 INFO L168 Benchmark]: TraceAbstraction took 912.39 ms. Allocated memory was 399.0 MB in the beginning and 601.4 MB in the end (delta: 202.4 MB). Free memory was 328.6 MB in the beginning and 493.2 MB in the end (delta: -164.6 MB). Peak memory consumption was 37.8 MB. Max. memory is 5.3 GB. [2018-02-04 19:28:04,697 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 399.0 MB. Free memory is still 362.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 150.13 ms. Allocated memory is still 399.0 MB. Free memory was 355.9 MB in the beginning and 344.0 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 21.19 ms. Allocated memory is still 399.0 MB. Free memory was 344.0 MB in the beginning and 341.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 154.10 ms. Allocated memory is still 399.0 MB. Free memory was 341.3 MB in the beginning and 328.6 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 912.39 ms. Allocated memory was 399.0 MB in the beginning and 601.4 MB in the end (delta: 202.4 MB). Free memory was 328.6 MB in the beginning and 493.2 MB in the end (delta: -164.6 MB). Peak memory consumption was 37.8 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1438]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 24 locations, 3 error locations. SAFE Result, 0.8s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 103 SDtfs, 19 SDslu, 286 SDs, 0 SdLazy, 152 SolverSat, 9 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 108 NumberOfCodeBlocks, 108 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 84 ConstructedInterpolants, 3 QuantifiedInterpolants, 4637 SizeOfPredicates, 2 NumberOfNonLiveVariables, 69 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test1_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_19-28-04-703.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test1_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-04_19-28-04-703.csv Received shutdown request...