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_test18_1_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:16:15,731 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:16:15,732 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:16:15,742 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:16:15,742 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:16:15,743 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:16:15,744 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:16:15,745 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:16:15,746 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:16:15,746 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:16:15,747 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 04:16:15,747 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 04:16:15,748 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 04:16:15,749 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 04:16:15,750 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 04:16:15,752 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 04:16:15,753 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 04:16:15,755 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 04:16:15,756 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 04:16:15,757 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 04:16:15,759 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 04:16:15,759 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 04:16:15,759 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 04:16:15,760 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 04:16:15,761 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 04:16:15,762 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 04:16:15,762 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 04:16:15,763 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 04:16:15,763 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 04:16:15,763 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 04:16:15,764 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 04:16:15,764 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-02-04 04:16:15,775 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:16:15,775 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:16:15,777 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:16:15,777 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:16:15,777 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:16:15,778 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:16:15,778 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:16:15,778 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:16:15,778 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:16:15,779 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:16:15,779 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:16:15,779 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:16:15,779 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:16:15,779 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:16:15,779 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:16:15,780 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:16:15,780 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:16:15,780 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:16:15,780 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:16:15,780 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:16:15,780 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:16:15,781 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:16:15,781 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-04 04:16:15,781 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-04 04:16:15,781 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-02-04 04:16:15,813 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:16:15,822 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:16:15,825 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:16:15,827 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:16:15,827 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:16:15,827 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test18_1_false-valid-memtrack_true-termination.i [2018-02-04 04:16:15,993 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:16:15,994 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:16:15,995 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:16:15,995 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:16:16,000 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:16:16,001 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:16:15" (1/1) ... [2018-02-04 04:16:16,003 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@286f8729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:16, skipping insertion in model container [2018-02-04 04:16:16,003 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:16:15" (1/1) ... [2018-02-04 04:16:16,017 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:16:16,053 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:16:16,148 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:16:16,161 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:16:16,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:16 WrapperNode [2018-02-04 04:16:16,166 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:16:16,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:16:16,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:16:16,167 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:16:16,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:16" (1/1) ... [2018-02-04 04:16:16,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:16" (1/1) ... [2018-02-04 04:16:16,189 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:16" (1/1) ... [2018-02-04 04:16:16,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:16" (1/1) ... [2018-02-04 04:16:16,191 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:16" (1/1) ... [2018-02-04 04:16:16,193 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:16" (1/1) ... [2018-02-04 04:16:16,193 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:16" (1/1) ... [2018-02-04 04:16:16,194 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:16:16,195 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:16:16,195 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:16:16,195 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:16:16,196 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:16" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:16:16,229 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:16:16,230 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:16:16,230 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-02-04 04:16:16,230 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-02-04 04:16:16,230 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:16:16,230 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-04 04:16:16,230 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-04 04:16:16,230 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:16:16,230 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:16:16,230 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:16:16,230 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 04:16:16,230 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 04:16:16,230 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 04:16:16,231 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-02-04 04:16:16,231 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-02-04 04:16:16,231 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:16:16,231 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:16:16,231 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:16:16,387 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:16:16,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:16:16 BoogieIcfgContainer [2018-02-04 04:16:16,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:16:16,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:16:16,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:16:16,392 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:16:16,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:16:15" (1/3) ... [2018-02-04 04:16:16,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@261cefea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:16:16, skipping insertion in model container [2018-02-04 04:16:16,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:16:16" (2/3) ... [2018-02-04 04:16:16,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@261cefea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:16:16, skipping insertion in model container [2018-02-04 04:16:16,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:16:16" (3/3) ... [2018-02-04 04:16:16,395 INFO L107 eAbstractionObserver]: Analyzing ICFG memleaks_test18_1_false-valid-memtrack_true-termination.i [2018-02-04 04:16:16,403 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:16:16,409 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-02-04 04:16:16,449 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:16:16,449 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:16:16,450 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-04 04:16:16,450 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-04 04:16:16,450 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:16:16,450 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:16:16,450 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:16:16,450 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:16:16,451 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:16:16,461 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-02-04 04:16:16,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-02-04 04:16:16,471 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:16:16,472 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:16:16,472 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation, entry_pointErr5RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-02-04 04:16:16,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1647065445, now seen corresponding path program 1 times [2018-02-04 04:16:16,479 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:16:16,479 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:16:16,527 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:16:16,527 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:16:16,527 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:16:16,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:16:16,568 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:16:16,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:16:16,636 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:16:16,636 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-04 04:16:16,638 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 04:16:16,645 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 04:16:16,646 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 04:16:16,648 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 3 states. [2018-02-04 04:16:16,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:16:16,775 INFO L93 Difference]: Finished difference Result 68 states and 80 transitions. [2018-02-04 04:16:16,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 04:16:16,777 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-02-04 04:16:16,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:16:16,783 INFO L225 Difference]: With dead ends: 68 [2018-02-04 04:16:16,783 INFO L226 Difference]: Without dead ends: 62 [2018-02-04 04:16:16,785 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 04:16:16,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-02-04 04:16:16,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 54. [2018-02-04 04:16:16,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-02-04 04:16:16,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 66 transitions. [2018-02-04 04:16:16,816 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 66 transitions. Word has length 17 [2018-02-04 04:16:16,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:16:16,816 INFO L432 AbstractCegarLoop]: Abstraction has 54 states and 66 transitions. [2018-02-04 04:16:16,816 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 04:16:16,816 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 66 transitions. [2018-02-04 04:16:16,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-04 04:16:16,818 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:16:16,818 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:16:16,818 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation, entry_pointErr5RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-02-04 04:16:16,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1810172163, now seen corresponding path program 1 times [2018-02-04 04:16:16,818 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:16:16,818 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:16:16,819 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:16:16,819 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:16:16,820 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:16:16,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:16:16,837 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:16:16,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:16:16,879 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:16:16,879 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-04 04:16:16,880 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:16:16,880 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:16:16,880 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 04:16:16,881 INFO L87 Difference]: Start difference. First operand 54 states and 66 transitions. Second operand 6 states. [2018-02-04 04:16:16,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:16:16,948 INFO L93 Difference]: Finished difference Result 76 states and 92 transitions. [2018-02-04 04:16:16,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:16:16,949 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-02-04 04:16:16,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:16:16,950 INFO L225 Difference]: With dead ends: 76 [2018-02-04 04:16:16,950 INFO L226 Difference]: Without dead ends: 76 [2018-02-04 04:16:16,950 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 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 04:16:16,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-02-04 04:16:16,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 54. [2018-02-04 04:16:16,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-02-04 04:16:16,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2018-02-04 04:16:16,957 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 19 [2018-02-04 04:16:16,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:16:16,958 INFO L432 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2018-02-04 04:16:16,958 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:16:16,958 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2018-02-04 04:16:16,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-04 04:16:16,959 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:16:16,959 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:16:16,959 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr0EnsuresViolation, entry_pointErr5RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-02-04 04:16:16,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1893738511, now seen corresponding path program 1 times [2018-02-04 04:16:16,960 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:16:16,960 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:16:16,961 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:16:16,961 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:16:16,961 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:16:16,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:16:16,972 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:16:17,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:16:17,030 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:16:17,031 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:16:17,031 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:16:17,031 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:16:17,031 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:16:17,032 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand 5 states. [2018-02-04 04:16:17,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:16:17,051 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2018-02-04 04:16:17,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:16:17,051 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-02-04 04:16:17,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:16:17,052 INFO L225 Difference]: With dead ends: 44 [2018-02-04 04:16:17,052 INFO L226 Difference]: Without dead ends: 42 [2018-02-04 04:16:17,052 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 04:16:17,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-02-04 04:16:17,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-02-04 04:16:17,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-02-04 04:16:17,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2018-02-04 04:16:17,055 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 20 [2018-02-04 04:16:17,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:16:17,055 INFO L432 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2018-02-04 04:16:17,055 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:16:17,055 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2018-02-04 04:16:17,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-04 04:16:17,056 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:16:17,056 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:16:17,056 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr0EnsuresViolation, entry_pointErr5RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-02-04 04:16:17,056 INFO L82 PathProgramCache]: Analyzing trace with hash 389514349, now seen corresponding path program 1 times [2018-02-04 04:16:17,056 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:16:17,057 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:16:17,058 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:16:17,058 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:16:17,058 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:16:17,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:16:17,070 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:16:17,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:16:17,127 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:16:17,128 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:16:17,128 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:16:17,128 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:16:17,128 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 04:16:17,129 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 6 states. [2018-02-04 04:16:17,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:16:17,211 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2018-02-04 04:16:17,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:16:17,212 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2018-02-04 04:16:17,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:16:17,213 INFO L225 Difference]: With dead ends: 49 [2018-02-04 04:16:17,213 INFO L226 Difference]: Without dead ends: 49 [2018-02-04 04:16:17,213 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 04:16:17,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-02-04 04:16:17,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 46. [2018-02-04 04:16:17,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-02-04 04:16:17,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2018-02-04 04:16:17,218 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 22 [2018-02-04 04:16:17,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:16:17,218 INFO L432 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2018-02-04 04:16:17,218 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:16:17,218 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2018-02-04 04:16:17,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-04 04:16:17,219 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:16:17,219 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:16:17,219 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr0EnsuresViolation, entry_pointErr5RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-02-04 04:16:17,219 INFO L82 PathProgramCache]: Analyzing trace with hash 389514350, now seen corresponding path program 1 times [2018-02-04 04:16:17,220 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:16:17,220 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:16:17,221 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:16:17,221 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:16:17,221 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:16:17,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:16:17,232 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:16:17,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:16:17,265 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:16:17,265 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:16:17,265 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 04:16:17,265 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 04:16:17,265 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-02-04 04:16:17,265 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand 4 states. [2018-02-04 04:16:17,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:16:17,284 INFO L93 Difference]: Finished difference Result 68 states and 78 transitions. [2018-02-04 04:16:17,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 04:16:17,284 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2018-02-04 04:16:17,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:16:17,285 INFO L225 Difference]: With dead ends: 68 [2018-02-04 04:16:17,285 INFO L226 Difference]: Without dead ends: 68 [2018-02-04 04:16:17,286 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-02-04 04:16:17,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-02-04 04:16:17,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 48. [2018-02-04 04:16:17,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-02-04 04:16:17,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2018-02-04 04:16:17,290 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 22 [2018-02-04 04:16:17,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:16:17,290 INFO L432 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2018-02-04 04:16:17,290 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 04:16:17,291 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2018-02-04 04:16:17,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-02-04 04:16:17,291 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:16:17,291 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:16:17,292 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr0EnsuresViolation, entry_pointErr5RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-02-04 04:16:17,292 INFO L82 PathProgramCache]: Analyzing trace with hash 1824781139, now seen corresponding path program 1 times [2018-02-04 04:16:17,292 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:16:17,292 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:16:17,293 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:16:17,293 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:16:17,294 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:16:17,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:16:17,305 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:16:17,339 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-04 04:16:17,339 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:16:17,339 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:16:17,339 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:16:17,340 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:16:17,340 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:16:17,340 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand 5 states. [2018-02-04 04:16:17,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:16:17,353 INFO L93 Difference]: Finished difference Result 62 states and 69 transitions. [2018-02-04 04:16:17,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:16:17,355 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2018-02-04 04:16:17,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:16:17,356 INFO L225 Difference]: With dead ends: 62 [2018-02-04 04:16:17,356 INFO L226 Difference]: Without dead ends: 62 [2018-02-04 04:16:17,357 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 04:16:17,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-02-04 04:16:17,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 50. [2018-02-04 04:16:17,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-02-04 04:16:17,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2018-02-04 04:16:17,360 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 26 [2018-02-04 04:16:17,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:16:17,361 INFO L432 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions. [2018-02-04 04:16:17,361 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:16:17,361 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2018-02-04 04:16:17,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-02-04 04:16:17,362 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:16:17,362 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:16:17,362 INFO L371 AbstractCegarLoop]: === Iteration 7 === [mainErr0EnsuresViolation, entry_pointErr5RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-02-04 04:16:17,362 INFO L82 PathProgramCache]: Analyzing trace with hash -85684427, now seen corresponding path program 1 times [2018-02-04 04:16:17,362 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:16:17,362 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:16:17,364 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:16:17,364 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:16:17,364 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:16:17,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:16:17,377 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:16:17,384 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Unknown lemma type! at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:299) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.access$1(Interpolator.java:263) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$ProofTreeWalker.walk(Interpolator.java:132) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:220) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:201) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:915) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:281) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:199) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackTraceAbstractionRefinementStrategy.getTraceCheck(MultiTrackTraceAbstractionRefinementStrategy.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:397) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:381) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:316) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:115) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:119) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-02-04 04:16:17,389 INFO L168 Benchmark]: Toolchain (without parser) took 1395.65 ms. Allocated memory was 395.8 MB in the beginning and 598.2 MB in the end (delta: 202.4 MB). Free memory was 349.9 MB in the beginning and 481.5 MB in the end (delta: -131.6 MB). Peak memory consumption was 70.7 MB. Max. memory is 5.3 GB. [2018-02-04 04:16:17,390 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 395.8 MB. Free memory is still 356.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:16:17,390 INFO L168 Benchmark]: CACSL2BoogieTranslator took 171.50 ms. Allocated memory is still 395.8 MB. Free memory was 349.9 MB in the beginning and 336.7 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. [2018-02-04 04:16:17,390 INFO L168 Benchmark]: Boogie Preprocessor took 27.89 ms. Allocated memory is still 395.8 MB. Free memory was 336.7 MB in the beginning and 335.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-04 04:16:17,391 INFO L168 Benchmark]: RCFGBuilder took 193.41 ms. Allocated memory is still 395.8 MB. Free memory was 335.3 MB in the beginning and 316.7 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:16:17,391 INFO L168 Benchmark]: TraceAbstraction took 999.68 ms. Allocated memory was 395.8 MB in the beginning and 598.2 MB in the end (delta: 202.4 MB). Free memory was 316.7 MB in the beginning and 481.5 MB in the end (delta: -164.8 MB). Peak memory consumption was 37.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:16:17,392 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 395.8 MB. Free memory is still 356.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 171.50 ms. Allocated memory is still 395.8 MB. Free memory was 349.9 MB in the beginning and 336.7 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 27.89 ms. Allocated memory is still 395.8 MB. Free memory was 336.7 MB in the beginning and 335.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 193.41 ms. Allocated memory is still 395.8 MB. Free memory was 335.3 MB in the beginning and 316.7 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 999.68 ms. Allocated memory was 395.8 MB in the beginning and 598.2 MB in the end (delta: 202.4 MB). Free memory was 316.7 MB in the beginning and 481.5 MB in the end (delta: -164.8 MB). Peak memory consumption was 37.6 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Unknown lemma type! de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Unknown lemma type!: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:299) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test18_1_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_04-16-17-398.csv Received shutdown request...