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_test6_3_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-a74eeac-m [2018-02-02 21:08:29,412 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 21:08:29,414 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 21:08:29,424 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 21:08:29,425 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 21:08:29,425 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 21:08:29,426 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 21:08:29,428 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 21:08:29,429 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 21:08:29,430 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 21:08:29,431 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 21:08:29,431 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 21:08:29,431 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 21:08:29,432 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 21:08:29,433 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 21:08:29,435 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 21:08:29,436 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 21:08:29,438 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 21:08:29,439 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 21:08:29,440 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 21:08:29,441 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-02 21:08:29,441 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-02 21:08:29,442 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-02 21:08:29,442 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-02 21:08:29,443 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-02 21:08:29,444 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-02 21:08:29,444 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-02 21:08:29,445 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-02 21:08:29,445 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-02 21:08:29,445 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-02 21:08:29,445 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-02 21:08:29,446 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 [2018-02-02 21:08:29,455 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 21:08:29,455 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 21:08:29,456 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 21:08:29,456 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 21:08:29,456 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 21:08:29,456 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 21:08:29,456 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 21:08:29,456 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 21:08:29,457 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 21:08:29,457 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 21:08:29,457 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 21:08:29,457 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 21:08:29,457 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 21:08:29,457 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 21:08:29,457 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 21:08:29,457 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 21:08:29,457 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 21:08:29,458 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 21:08:29,458 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 21:08:29,458 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 21:08:29,458 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 21:08:29,458 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 21:08:29,458 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-02 21:08:29,458 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-02 21:08:29,458 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-02-02 21:08:29,484 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 21:08:29,492 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 21:08:29,495 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 21:08:29,496 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 21:08:29,496 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 21:08:29,496 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test6_3_false-valid-memtrack_true-termination.i [2018-02-02 21:08:29,632 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 21:08:29,634 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 21:08:29,634 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 21:08:29,635 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 21:08:29,640 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 21:08:29,641 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:08:29" (1/1) ... [2018-02-02 21:08:29,644 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30ce2b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:08:29, skipping insertion in model container [2018-02-02 21:08:29,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:08:29" (1/1) ... [2018-02-02 21:08:29,659 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 21:08:29,705 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 21:08:29,794 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 21:08:29,808 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 21:08:29,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:08:29 WrapperNode [2018-02-02 21:08:29,815 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 21:08:29,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 21:08:29,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 21:08:29,815 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 21:08:29,827 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:08:29" (1/1) ... [2018-02-02 21:08:29,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:08:29" (1/1) ... [2018-02-02 21:08:29,836 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:08:29" (1/1) ... [2018-02-02 21:08:29,836 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:08:29" (1/1) ... [2018-02-02 21:08:29,841 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:08:29" (1/1) ... [2018-02-02 21:08:29,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:08:29" (1/1) ... [2018-02-02 21:08:29,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:08:29" (1/1) ... [2018-02-02 21:08:29,845 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 21:08:29,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 21:08:29,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 21:08:29,846 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 21:08:29,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:08:29" (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 [2018-02-02 21:08:29,888 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 21:08:29,889 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 21:08:29,889 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-02-02 21:08:29,889 INFO L136 BoogieDeclarations]: Found implementation of procedure f6 [2018-02-02 21:08:29,889 INFO L136 BoogieDeclarations]: Found implementation of procedure g6 [2018-02-02 21:08:29,889 INFO L136 BoogieDeclarations]: Found implementation of procedure probe1_6 [2018-02-02 21:08:29,889 INFO L136 BoogieDeclarations]: Found implementation of procedure disconnect_2_6 [2018-02-02 21:08:29,889 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-02-02 21:08:29,889 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 21:08:29,889 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-02 21:08:29,889 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-02 21:08:29,889 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 21:08:29,889 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 21:08:29,890 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 21:08:29,890 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-02 21:08:29,890 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-02 21:08:29,890 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-02 21:08:29,890 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-02-02 21:08:29,890 INFO L128 BoogieDeclarations]: Found specification of procedure f6 [2018-02-02 21:08:29,890 INFO L128 BoogieDeclarations]: Found specification of procedure g6 [2018-02-02 21:08:29,890 INFO L128 BoogieDeclarations]: Found specification of procedure probe1_6 [2018-02-02 21:08:29,890 INFO L128 BoogieDeclarations]: Found specification of procedure disconnect_2_6 [2018-02-02 21:08:29,890 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-02-02 21:08:29,890 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 21:08:29,890 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 21:08:29,890 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 21:08:30,052 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 21:08:30,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:08:30 BoogieIcfgContainer [2018-02-02 21:08:30,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 21:08:30,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 21:08:30,053 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 21:08:30,055 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 21:08:30,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 09:08:29" (1/3) ... [2018-02-02 21:08:30,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71e9e4a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:08:30, skipping insertion in model container [2018-02-02 21:08:30,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:08:29" (2/3) ... [2018-02-02 21:08:30,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71e9e4a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:08:30, skipping insertion in model container [2018-02-02 21:08:30,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:08:30" (3/3) ... [2018-02-02 21:08:30,058 INFO L107 eAbstractionObserver]: Analyzing ICFG memleaks_test6_3_false-valid-memtrack_true-termination.i [2018-02-02 21:08:30,063 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-02 21:08:30,067 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-02-02 21:08:30,103 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 21:08:30,103 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 21:08:30,103 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-02 21:08:30,103 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-02 21:08:30,103 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 21:08:30,103 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 21:08:30,103 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 21:08:30,103 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 21:08:30,104 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 21:08:30,117 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states. [2018-02-02 21:08:30,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-02-02 21:08:30,125 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:08:30,126 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-02-02 21:08:30,126 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr0RequiresViolation, mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, probe1_6Err1RequiresViolation, probe1_6Err2RequiresViolation, probe1_6Err3RequiresViolation, probe1_6Err0RequiresViolation]=== [2018-02-02 21:08:30,131 INFO L82 PathProgramCache]: Analyzing trace with hash 3053611, now seen corresponding path program 1 times [2018-02-02 21:08:30,133 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:08:30,133 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:08:30,184 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:08:30,185 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:08:30,185 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:08:30,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:08:30,223 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:08:30,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 21:08:30,260 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:08:30,260 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-02 21:08:30,261 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-02 21:08:30,269 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-02 21:08:30,270 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 21:08:30,271 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 3 states. [2018-02-02 21:08:30,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:08:30,355 INFO L93 Difference]: Finished difference Result 68 states and 73 transitions. [2018-02-02 21:08:30,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-02 21:08:30,356 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-02-02 21:08:30,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:08:30,363 INFO L225 Difference]: With dead ends: 68 [2018-02-02 21:08:30,363 INFO L226 Difference]: Without dead ends: 65 [2018-02-02 21:08:30,364 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 21:08:30,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-02-02 21:08:30,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 64. [2018-02-02 21:08:30,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-02-02 21:08:30,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 70 transitions. [2018-02-02 21:08:30,436 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 70 transitions. Word has length 4 [2018-02-02 21:08:30,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:08:30,437 INFO L432 AbstractCegarLoop]: Abstraction has 64 states and 70 transitions. [2018-02-02 21:08:30,437 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-02 21:08:30,437 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 70 transitions. [2018-02-02 21:08:30,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-02-02 21:08:30,437 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:08:30,437 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-02-02 21:08:30,437 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr0RequiresViolation, mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, probe1_6Err1RequiresViolation, probe1_6Err2RequiresViolation, probe1_6Err3RequiresViolation, probe1_6Err0RequiresViolation]=== [2018-02-02 21:08:30,438 INFO L82 PathProgramCache]: Analyzing trace with hash 3053612, now seen corresponding path program 1 times [2018-02-02 21:08:30,438 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:08:30,438 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:08:30,439 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:08:30,440 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:08:30,440 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:08:30,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:08:30,458 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:08:30,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 21:08:30,500 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:08:30,501 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-02 21:08:30,502 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-02 21:08:30,503 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-02 21:08:30,503 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 21:08:30,503 INFO L87 Difference]: Start difference. First operand 64 states and 70 transitions. Second operand 3 states. [2018-02-02 21:08:30,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:08:30,587 INFO L93 Difference]: Finished difference Result 110 states and 120 transitions. [2018-02-02 21:08:30,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-02 21:08:30,588 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-02-02 21:08:30,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:08:30,590 INFO L225 Difference]: With dead ends: 110 [2018-02-02 21:08:30,590 INFO L226 Difference]: Without dead ends: 110 [2018-02-02 21:08:30,591 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 21:08:30,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2018-02-02 21:08:30,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 101. [2018-02-02 21:08:30,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2018-02-02 21:08:30,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 117 transitions. [2018-02-02 21:08:30,603 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 117 transitions. Word has length 4 [2018-02-02 21:08:30,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:08:30,603 INFO L432 AbstractCegarLoop]: Abstraction has 101 states and 117 transitions. [2018-02-02 21:08:30,603 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-02 21:08:30,603 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 117 transitions. [2018-02-02 21:08:30,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-02-02 21:08:30,604 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:08:30,604 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] [2018-02-02 21:08:30,604 INFO L371 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr0RequiresViolation, mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, probe1_6Err1RequiresViolation, probe1_6Err2RequiresViolation, probe1_6Err3RequiresViolation, probe1_6Err0RequiresViolation]=== [2018-02-02 21:08:30,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1645066521, now seen corresponding path program 1 times [2018-02-02 21:08:30,605 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:08:30,605 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:08:30,606 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:08:30,606 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:08:30,606 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:08:30,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:08:30,627 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:08:30,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 21:08:30,691 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:08:30,691 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 21:08:30,691 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 21:08:30,692 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 21:08:30,692 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 21:08:30,692 INFO L87 Difference]: Start difference. First operand 101 states and 117 transitions. Second operand 5 states. [2018-02-02 21:08:30,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:08:30,709 INFO L93 Difference]: Finished difference Result 78 states and 85 transitions. [2018-02-02 21:08:30,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 21:08:30,710 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2018-02-02 21:08:30,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:08:30,716 INFO L225 Difference]: With dead ends: 78 [2018-02-02 21:08:30,716 INFO L226 Difference]: Without dead ends: 78 [2018-02-02 21:08:30,717 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 [2018-02-02 21:08:30,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-02-02 21:08:30,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 76. [2018-02-02 21:08:30,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-02-02 21:08:30,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 83 transitions. [2018-02-02 21:08:30,723 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 83 transitions. Word has length 24 [2018-02-02 21:08:30,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:08:30,723 INFO L432 AbstractCegarLoop]: Abstraction has 76 states and 83 transitions. [2018-02-02 21:08:30,723 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 21:08:30,723 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 83 transitions. [2018-02-02 21:08:30,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-02-02 21:08:30,724 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:08:30,724 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] [2018-02-02 21:08:30,724 INFO L371 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr0RequiresViolation, mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, probe1_6Err1RequiresViolation, probe1_6Err2RequiresViolation, probe1_6Err3RequiresViolation, probe1_6Err0RequiresViolation]=== [2018-02-02 21:08:30,725 INFO L82 PathProgramCache]: Analyzing trace with hash 995391925, now seen corresponding path program 1 times [2018-02-02 21:08:30,725 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:08:30,725 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:08:30,726 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:08:30,726 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:08:30,727 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:08:30,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:08:30,748 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:08:30,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 21:08:30,800 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:08:30,800 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-02 21:08:30,800 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-02 21:08:30,800 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-02 21:08:30,800 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-02 21:08:30,800 INFO L87 Difference]: Start difference. First operand 76 states and 83 transitions. Second operand 6 states. [2018-02-02 21:08:30,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:08:30,826 INFO L93 Difference]: Finished difference Result 76 states and 82 transitions. [2018-02-02 21:08:30,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 21:08:30,827 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-02-02 21:08:30,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:08:30,828 INFO L225 Difference]: With dead ends: 76 [2018-02-02 21:08:30,828 INFO L226 Difference]: Without dead ends: 76 [2018-02-02 21:08:30,828 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 [2018-02-02 21:08:30,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-02-02 21:08:30,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2018-02-02 21:08:30,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-02-02 21:08:30,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 82 transitions. [2018-02-02 21:08:30,832 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 82 transitions. Word has length 24 [2018-02-02 21:08:30,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:08:30,832 INFO L432 AbstractCegarLoop]: Abstraction has 76 states and 82 transitions. [2018-02-02 21:08:30,832 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-02 21:08:30,832 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 82 transitions. [2018-02-02 21:08:30,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-02-02 21:08:30,833 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:08:30,833 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, 1, 1, 1, 1, 1, 1] [2018-02-02 21:08:30,833 INFO L371 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr0RequiresViolation, mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, probe1_6Err1RequiresViolation, probe1_6Err2RequiresViolation, probe1_6Err3RequiresViolation, probe1_6Err0RequiresViolation]=== [2018-02-02 21:08:30,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1433763835, now seen corresponding path program 1 times [2018-02-02 21:08:30,833 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:08:30,834 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:08:30,835 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:08:30,835 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:08:30,835 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:08:30,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:08:30,852 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:08:30,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 21:08:30,907 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:08:30,907 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 21:08:30,907 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-02 21:08:30,907 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-02 21:08:30,907 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-02 21:08:30,908 INFO L87 Difference]: Start difference. First operand 76 states and 82 transitions. Second operand 6 states. [2018-02-02 21:08:30,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:08:30,933 INFO L93 Difference]: Finished difference Result 75 states and 81 transitions. [2018-02-02 21:08:30,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-02 21:08:30,933 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2018-02-02 21:08:30,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:08:30,934 INFO L225 Difference]: With dead ends: 75 [2018-02-02 21:08:30,934 INFO L226 Difference]: Without dead ends: 75 [2018-02-02 21:08:30,934 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 [2018-02-02 21:08:30,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-02-02 21:08:30,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2018-02-02 21:08:30,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-02-02 21:08:30,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 81 transitions. [2018-02-02 21:08:30,939 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 81 transitions. Word has length 26 [2018-02-02 21:08:30,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:08:30,939 INFO L432 AbstractCegarLoop]: Abstraction has 75 states and 81 transitions. [2018-02-02 21:08:30,939 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-02 21:08:30,940 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 81 transitions. [2018-02-02 21:08:30,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-02-02 21:08:30,940 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:08:30,940 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] [2018-02-02 21:08:30,940 INFO L371 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr0RequiresViolation, mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, probe1_6Err1RequiresViolation, probe1_6Err2RequiresViolation, probe1_6Err3RequiresViolation, probe1_6Err0RequiresViolation]=== [2018-02-02 21:08:30,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1433763836, now seen corresponding path program 1 times [2018-02-02 21:08:30,941 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:08:30,941 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:08:30,942 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:08:30,942 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:08:30,942 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:08:30,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:08:30,954 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:08:31,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 21:08:31,001 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:08:31,001 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 21:08:31,001 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-02 21:08:31,001 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-02 21:08:31,002 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-02 21:08:31,002 INFO L87 Difference]: Start difference. First operand 75 states and 81 transitions. Second operand 6 states. [2018-02-02 21:08:31,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:08:31,067 INFO L93 Difference]: Finished difference Result 74 states and 80 transitions. [2018-02-02 21:08:31,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 21:08:31,069 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2018-02-02 21:08:31,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:08:31,070 INFO L225 Difference]: With dead ends: 74 [2018-02-02 21:08:31,070 INFO L226 Difference]: Without dead ends: 74 [2018-02-02 21:08:31,071 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 [2018-02-02 21:08:31,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-02-02 21:08:31,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-02-02 21:08:31,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-02-02 21:08:31,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 80 transitions. [2018-02-02 21:08:31,075 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 80 transitions. Word has length 26 [2018-02-02 21:08:31,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:08:31,076 INFO L432 AbstractCegarLoop]: Abstraction has 74 states and 80 transitions. [2018-02-02 21:08:31,076 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-02 21:08:31,076 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 80 transitions. [2018-02-02 21:08:31,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-02-02 21:08:31,077 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:08:31,077 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] [2018-02-02 21:08:31,077 INFO L371 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr0RequiresViolation, mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, probe1_6Err1RequiresViolation, probe1_6Err2RequiresViolation, probe1_6Err3RequiresViolation, probe1_6Err0RequiresViolation]=== [2018-02-02 21:08:31,077 INFO L82 PathProgramCache]: Analyzing trace with hash -772946127, now seen corresponding path program 1 times [2018-02-02 21:08:31,077 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:08:31,077 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:08:31,078 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:08:31,078 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:08:31,078 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:08:31,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:08:31,097 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:08:31,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 21:08:31,143 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:08:31,143 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-02 21:08:31,146 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-02 21:08:31,146 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-02 21:08:31,147 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 21:08:31,147 INFO L87 Difference]: Start difference. First operand 74 states and 80 transitions. Second operand 3 states. [2018-02-02 21:08:31,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:08:31,191 INFO L93 Difference]: Finished difference Result 77 states and 82 transitions. [2018-02-02 21:08:31,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-02 21:08:31,191 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2018-02-02 21:08:31,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:08:31,192 INFO L225 Difference]: With dead ends: 77 [2018-02-02 21:08:31,192 INFO L226 Difference]: Without dead ends: 61 [2018-02-02 21:08:31,195 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 21:08:31,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-02-02 21:08:31,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-02-02 21:08:31,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-02-02 21:08:31,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 65 transitions. [2018-02-02 21:08:31,206 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 65 transitions. Word has length 25 [2018-02-02 21:08:31,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:08:31,206 INFO L432 AbstractCegarLoop]: Abstraction has 61 states and 65 transitions. [2018-02-02 21:08:31,206 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-02 21:08:31,206 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 65 transitions. [2018-02-02 21:08:31,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-02-02 21:08:31,207 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:08:31,207 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, 1, 1, 1, 1, 1] [2018-02-02 21:08:31,207 INFO L371 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr0RequiresViolation, mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, probe1_6Err1RequiresViolation, probe1_6Err2RequiresViolation, probe1_6Err3RequiresViolation, probe1_6Err0RequiresViolation]=== [2018-02-02 21:08:31,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1279706416, now seen corresponding path program 1 times [2018-02-02 21:08:31,208 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:08:31,208 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:08:31,209 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:08:31,209 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:08:31,209 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:08:31,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:08:31,222 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:08:31,229 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) [2018-02-02 21:08:31,238 INFO L168 Benchmark]: Toolchain (without parser) took 1605.43 ms. Allocated memory was 406.3 MB in the beginning and 611.8 MB in the end (delta: 205.5 MB). Free memory was 363.0 MB in the beginning and 486.4 MB in the end (delta: -123.4 MB). Peak memory consumption was 82.1 MB. Max. memory is 5.3 GB. [2018-02-02 21:08:31,239 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 406.3 MB. Free memory is still 369.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 21:08:31,240 INFO L168 Benchmark]: CACSL2BoogieTranslator took 180.49 ms. Allocated memory is still 406.3 MB. Free memory was 363.0 MB in the beginning and 349.8 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. [2018-02-02 21:08:31,240 INFO L168 Benchmark]: Boogie Preprocessor took 29.91 ms. Allocated memory is still 406.3 MB. Free memory was 349.8 MB in the beginning and 348.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-02 21:08:31,240 INFO L168 Benchmark]: RCFGBuilder took 207.55 ms. Allocated memory is still 406.3 MB. Free memory was 348.4 MB in the beginning and 327.3 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 5.3 GB. [2018-02-02 21:08:31,240 INFO L168 Benchmark]: TraceAbstraction took 1184.49 ms. Allocated memory was 406.3 MB in the beginning and 611.8 MB in the end (delta: 205.5 MB). Free memory was 327.3 MB in the beginning and 486.4 MB in the end (delta: -159.1 MB). Peak memory consumption was 46.4 MB. Max. memory is 5.3 GB. [2018-02-02 21:08:31,242 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 406.3 MB. Free memory is still 369.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 180.49 ms. Allocated memory is still 406.3 MB. Free memory was 363.0 MB in the beginning and 349.8 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 29.91 ms. Allocated memory is still 406.3 MB. Free memory was 349.8 MB in the beginning and 348.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 207.55 ms. Allocated memory is still 406.3 MB. Free memory was 348.4 MB in the beginning and 327.3 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1184.49 ms. Allocated memory was 406.3 MB in the beginning and 611.8 MB in the end (delta: 205.5 MB). Free memory was 327.3 MB in the beginning and 486.4 MB in the end (delta: -159.1 MB). Peak memory consumption was 46.4 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_test6_3_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_21-08-31-247.csv Received shutdown request...