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_test5_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:18:13,206 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:18:13,208 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:18:13,218 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:18:13,218 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:18:13,219 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:18:13,219 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:18:13,220 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:18:13,222 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:18:13,222 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:18:13,223 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 04:18:13,223 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 04:18:13,224 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 04:18:13,225 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 04:18:13,226 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 04:18:13,227 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 04:18:13,229 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 04:18:13,230 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 04:18:13,231 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 04:18:13,232 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 04:18:13,234 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-04 04:18:13,238 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 04:18:13,239 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 04:18:13,239 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 04:18:13,248 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:18:13,248 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:18:13,249 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:18:13,249 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:18:13,249 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:18:13,250 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:18:13,250 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:18:13,250 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:18:13,250 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:18:13,250 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:18:13,250 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:18:13,251 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:18:13,251 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:18:13,251 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:18:13,251 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:18:13,251 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:18:13,251 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:18:13,252 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:18:13,252 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:18:13,252 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:18:13,252 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:18:13,252 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:18:13,252 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-04 04:18:13,252 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-04 04:18:13,253 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-02-04 04:18:13,282 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:18:13,293 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:18:13,296 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:18:13,297 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:18:13,297 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:18:13,297 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test5_true-valid-memsafety_true-termination.i [2018-02-04 04:18:13,453 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:18:13,454 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:18:13,455 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:18:13,455 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:18:13,459 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:18:13,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:18:13" (1/1) ... [2018-02-04 04:18:13,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b275d44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:18:13, skipping insertion in model container [2018-02-04 04:18:13,462 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:18:13" (1/1) ... [2018-02-04 04:18:13,471 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:18:13,505 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:18:13,578 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:18:13,588 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:18:13,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:18:13 WrapperNode [2018-02-04 04:18:13,594 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:18:13,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:18:13,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:18:13,595 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:18:13,609 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:18:13" (1/1) ... [2018-02-04 04:18:13,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:18:13" (1/1) ... [2018-02-04 04:18:13,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:18:13" (1/1) ... [2018-02-04 04:18:13,617 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:18:13" (1/1) ... [2018-02-04 04:18:13,620 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:18:13" (1/1) ... [2018-02-04 04:18:13,621 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:18:13" (1/1) ... [2018-02-04 04:18:13,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:18:13" (1/1) ... [2018-02-04 04:18:13,623 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:18:13,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:18:13,623 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:18:13,623 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:18:13,624 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:18:13" (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 04:18:13,658 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:18:13,658 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:18:13,658 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-02-04 04:18:13,658 INFO L136 BoogieDeclarations]: Found implementation of procedure h5 [2018-02-04 04:18:13,658 INFO L136 BoogieDeclarations]: Found implementation of procedure g5 [2018-02-04 04:18:13,658 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-02-04 04:18:13,658 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:18:13,659 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:18:13,659 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:18:13,659 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:18:13,659 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 04:18:13,659 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 04:18:13,659 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 04:18:13,659 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-02-04 04:18:13,659 INFO L128 BoogieDeclarations]: Found specification of procedure h5 [2018-02-04 04:18:13,659 INFO L128 BoogieDeclarations]: Found specification of procedure g5 [2018-02-04 04:18:13,659 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-02-04 04:18:13,659 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:18:13,659 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:18:13,659 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:18:13,763 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:18:13,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:18:13 BoogieIcfgContainer [2018-02-04 04:18:13,764 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:18:13,764 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:18:13,764 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:18:13,766 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:18:13,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:18:13" (1/3) ... [2018-02-04 04:18:13,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f49a45e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:18:13, skipping insertion in model container [2018-02-04 04:18:13,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:18:13" (2/3) ... [2018-02-04 04:18:13,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f49a45e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:18:13, skipping insertion in model container [2018-02-04 04:18:13,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:18:13" (3/3) ... [2018-02-04 04:18:13,768 INFO L107 eAbstractionObserver]: Analyzing ICFG memleaks_test5_true-valid-memsafety_true-termination.i [2018-02-04 04:18:13,774 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:18:13,778 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-02-04 04:18:13,811 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:18:13,811 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:18:13,811 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-04 04:18:13,811 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-04 04:18:13,811 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:18:13,812 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:18:13,812 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:18:13,812 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:18:13,813 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:18:13,824 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-02-04 04:18:13,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-04 04:18:13,833 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:18:13,833 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 04:18:13,833 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-02-04 04:18:13,836 INFO L82 PathProgramCache]: Analyzing trace with hash -1224818119, now seen corresponding path program 1 times [2018-02-04 04:18:13,837 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:18:13,838 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:18:13,872 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:18:13,873 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:18:13,873 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:18:13,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:18:13,918 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:18:14,067 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 04:18:14,069 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:18:14,069 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-02-04 04:18:14,070 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-02-04 04:18:14,079 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-02-04 04:18:14,079 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-02-04 04:18:14,081 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 9 states. [2018-02-04 04:18:14,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:18:14,204 INFO L93 Difference]: Finished difference Result 48 states and 50 transitions. [2018-02-04 04:18:14,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-02-04 04:18:14,205 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2018-02-04 04:18:14,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:18:14,214 INFO L225 Difference]: With dead ends: 48 [2018-02-04 04:18:14,215 INFO L226 Difference]: Without dead ends: 45 [2018-02-04 04:18:14,218 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-02-04 04:18:14,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-02-04 04:18:14,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2018-02-04 04:18:14,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-02-04 04:18:14,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2018-02-04 04:18:14,245 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 20 [2018-02-04 04:18:14,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:18:14,245 INFO L432 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2018-02-04 04:18:14,245 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-02-04 04:18:14,245 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2018-02-04 04:18:14,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-04 04:18:14,246 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:18:14,246 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 04:18:14,246 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-02-04 04:18:14,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1224818118, now seen corresponding path program 1 times [2018-02-04 04:18:14,246 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:18:14,247 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:18:14,248 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:18:14,248 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:18:14,248 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:18:14,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:18:14,263 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:18:14,340 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 04:18:14,341 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:18:14,341 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-02-04 04:18:14,343 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-02-04 04:18:14,343 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-02-04 04:18:14,343 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-02-04 04:18:14,343 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand 9 states. [2018-02-04 04:18:14,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:18:14,415 INFO L93 Difference]: Finished difference Result 46 states and 48 transitions. [2018-02-04 04:18:14,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-02-04 04:18:14,416 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2018-02-04 04:18:14,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:18:14,418 INFO L225 Difference]: With dead ends: 46 [2018-02-04 04:18:14,418 INFO L226 Difference]: Without dead ends: 46 [2018-02-04 04:18:14,419 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-02-04 04:18:14,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-02-04 04:18:14,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2018-02-04 04:18:14,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-02-04 04:18:14,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2018-02-04 04:18:14,424 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 20 [2018-02-04 04:18:14,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:18:14,424 INFO L432 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2018-02-04 04:18:14,424 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-02-04 04:18:14,425 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2018-02-04 04:18:14,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-04 04:18:14,425 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:18:14,425 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 04:18:14,426 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-02-04 04:18:14,426 INFO L82 PathProgramCache]: Analyzing trace with hash -1045905065, now seen corresponding path program 1 times [2018-02-04 04:18:14,426 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:18:14,426 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:18:14,427 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:18:14,428 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:18:14,428 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:18:14,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:18:14,443 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:18:14,500 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 04:18:14,500 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:18:14,502 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-02-04 04:18:14,503 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-02-04 04:18:14,503 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-02-04 04:18:14,503 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-02-04 04:18:14,504 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand 10 states. [2018-02-04 04:18:14,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:18:14,560 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2018-02-04 04:18:14,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-02-04 04:18:14,561 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2018-02-04 04:18:14,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:18:14,562 INFO L225 Difference]: With dead ends: 41 [2018-02-04 04:18:14,562 INFO L226 Difference]: Without dead ends: 41 [2018-02-04 04:18:14,562 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2018-02-04 04:18:14,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-02-04 04:18:14,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-02-04 04:18:14,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-02-04 04:18:14,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2018-02-04 04:18:14,567 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 22 [2018-02-04 04:18:14,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:18:14,568 INFO L432 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2018-02-04 04:18:14,568 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-02-04 04:18:14,568 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2018-02-04 04:18:14,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-04 04:18:14,569 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:18:14,569 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 04:18:14,569 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-02-04 04:18:14,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1045905064, now seen corresponding path program 1 times [2018-02-04 04:18:14,569 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:18:14,569 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:18:14,571 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:18:14,571 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:18:14,571 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:18:14,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:18:14,583 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:18:14,661 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 04:18:14,661 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:18:14,662 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-02-04 04:18:14,662 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-02-04 04:18:14,662 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-02-04 04:18:14,662 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-02-04 04:18:14,663 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand 10 states. [2018-02-04 04:18:14,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:18:14,783 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2018-02-04 04:18:14,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-02-04 04:18:14,784 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2018-02-04 04:18:14,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:18:14,785 INFO L225 Difference]: With dead ends: 44 [2018-02-04 04:18:14,785 INFO L226 Difference]: Without dead ends: 44 [2018-02-04 04:18:14,785 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2018-02-04 04:18:14,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-02-04 04:18:14,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 28. [2018-02-04 04:18:14,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-02-04 04:18:14,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2018-02-04 04:18:14,789 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 22 [2018-02-04 04:18:14,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:18:14,789 INFO L432 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2018-02-04 04:18:14,789 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-02-04 04:18:14,789 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2018-02-04 04:18:14,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-02-04 04:18:14,789 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:18:14,790 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, 1, 1] [2018-02-04 04:18:14,790 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-02-04 04:18:14,790 INFO L82 PathProgramCache]: Analyzing trace with hash -1043029204, now seen corresponding path program 1 times [2018-02-04 04:18:14,790 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:18:14,790 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:18:14,791 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:18:14,791 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:18:14,791 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:18:14,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:18:14,799 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:18:14,827 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 04:18:14,828 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:18:14,828 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-04 04:18:14,828 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 04:18:14,828 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 04:18:14,828 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 04:18:14,829 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 3 states. [2018-02-04 04:18:14,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:18:14,848 INFO L93 Difference]: Finished difference Result 40 states and 42 transitions. [2018-02-04 04:18:14,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 04:18:14,849 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2018-02-04 04:18:14,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:18:14,850 INFO L225 Difference]: With dead ends: 40 [2018-02-04 04:18:14,850 INFO L226 Difference]: Without dead ends: 37 [2018-02-04 04:18:14,850 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 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 04:18:14,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-02-04 04:18:14,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-02-04 04:18:14,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-02-04 04:18:14,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2018-02-04 04:18:14,857 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 24 [2018-02-04 04:18:14,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:18:14,858 INFO L432 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2018-02-04 04:18:14,858 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 04:18:14,858 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2018-02-04 04:18:14,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-02-04 04:18:14,859 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:18:14,859 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, 1, 1, 1] [2018-02-04 04:18:14,859 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-02-04 04:18:14,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1685081515, now seen corresponding path program 1 times [2018-02-04 04:18:14,859 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:18:14,859 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:18:14,860 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:18:14,860 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:18:14,860 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:18:14,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:18:14,866 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:18:14,947 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 04:18:14,947 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:18:14,947 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-02-04 04:18:14,947 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-02-04 04:18:14,947 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-02-04 04:18:14,947 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-02-04 04:18:14,947 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand 10 states. [2018-02-04 04:18:15,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:18:15,007 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2018-02-04 04:18:15,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-02-04 04:18:15,007 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2018-02-04 04:18:15,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:18:15,008 INFO L225 Difference]: With dead ends: 37 [2018-02-04 04:18:15,008 INFO L226 Difference]: Without dead ends: 30 [2018-02-04 04:18:15,008 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2018-02-04 04:18:15,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-02-04 04:18:15,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2018-02-04 04:18:15,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-02-04 04:18:15,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2018-02-04 04:18:15,010 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 25 [2018-02-04 04:18:15,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:18:15,010 INFO L432 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2018-02-04 04:18:15,010 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-02-04 04:18:15,010 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2018-02-04 04:18:15,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-02-04 04:18:15,010 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:18:15,010 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, 1, 1, 1, 1] [2018-02-04 04:18:15,010 INFO L371 AbstractCegarLoop]: === Iteration 7 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-02-04 04:18:15,011 INFO L82 PathProgramCache]: Analyzing trace with hash 1527636810, now seen corresponding path program 1 times [2018-02-04 04:18:15,011 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:18:15,011 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:18:15,011 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:18:15,011 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:18:15,012 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:18:15,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:18:15,016 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:18:15,076 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 04:18:15,076 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:18:15,076 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-02-04 04:18:15,076 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-02-04 04:18:15,077 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-02-04 04:18:15,077 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-02-04 04:18:15,077 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 10 states. [2018-02-04 04:18:15,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:18:15,121 INFO L93 Difference]: Finished difference Result 30 states and 29 transitions. [2018-02-04 04:18:15,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-02-04 04:18:15,122 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2018-02-04 04:18:15,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:18:15,122 INFO L225 Difference]: With dead ends: 30 [2018-02-04 04:18:15,122 INFO L226 Difference]: Without dead ends: 28 [2018-02-04 04:18:15,123 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2018-02-04 04:18:15,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-02-04 04:18:15,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-02-04 04:18:15,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-02-04 04:18:15,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 27 transitions. [2018-02-04 04:18:15,125 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 27 transitions. Word has length 26 [2018-02-04 04:18:15,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:18:15,125 INFO L432 AbstractCegarLoop]: Abstraction has 28 states and 27 transitions. [2018-02-04 04:18:15,125 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-02-04 04:18:15,126 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 27 transitions. [2018-02-04 04:18:15,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-02-04 04:18:15,126 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:18:15,126 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, 1, 1, 1, 1, 1] [2018-02-04 04:18:15,126 INFO L371 AbstractCegarLoop]: === Iteration 8 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-02-04 04:18:15,127 INFO L82 PathProgramCache]: Analyzing trace with hash -228650675, now seen corresponding path program 1 times [2018-02-04 04:18:15,127 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:18:15,127 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:18:15,128 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:18:15,128 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:18:15,128 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:18:15,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:18:15,139 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:18:15,145 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 04:18:15,147 INFO L168 Benchmark]: Toolchain (without parser) took 1693.87 ms. Allocated memory was 402.7 MB in the beginning and 626.0 MB in the end (delta: 223.3 MB). Free memory was 359.3 MB in the beginning and 591.7 MB in the end (delta: -232.3 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:18:15,148 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 402.7 MB. Free memory is still 365.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:18:15,148 INFO L168 Benchmark]: CACSL2BoogieTranslator took 139.49 ms. Allocated memory is still 402.7 MB. Free memory was 359.3 MB in the beginning and 346.1 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. [2018-02-04 04:18:15,149 INFO L168 Benchmark]: Boogie Preprocessor took 28.22 ms. Allocated memory is still 402.7 MB. Free memory was 346.1 MB in the beginning and 344.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-04 04:18:15,149 INFO L168 Benchmark]: RCFGBuilder took 140.67 ms. Allocated memory is still 402.7 MB. Free memory was 344.8 MB in the beginning and 330.2 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:18:15,149 INFO L168 Benchmark]: TraceAbstraction took 1382.72 ms. Allocated memory was 402.7 MB in the beginning and 626.0 MB in the end (delta: 223.3 MB). Free memory was 328.9 MB in the beginning and 591.7 MB in the end (delta: -262.8 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:18:15,150 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 402.7 MB. Free memory is still 365.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 139.49 ms. Allocated memory is still 402.7 MB. Free memory was 359.3 MB in the beginning and 346.1 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 28.22 ms. Allocated memory is still 402.7 MB. Free memory was 346.1 MB in the beginning and 344.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 140.67 ms. Allocated memory is still 402.7 MB. Free memory was 344.8 MB in the beginning and 330.2 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1382.72 ms. Allocated memory was 402.7 MB in the beginning and 626.0 MB in the end (delta: 223.3 MB). Free memory was 328.9 MB in the beginning and 591.7 MB in the end (delta: -262.8 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Unknown lemma type! de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Unknown lemma type!: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:299) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test5_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_04-18-15-155.csv Received shutdown request...