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/forester-heap/dll-circular_true-unreach-call_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:19:09,916 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:19:09,917 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:19:09,929 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:19:09,929 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:19:09,930 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:19:09,931 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:19:09,932 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:19:09,933 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:19:09,934 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:19:09,935 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 04:19:09,935 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 04:19:09,936 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 04:19:09,937 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 04:19:09,938 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 04:19:09,939 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 04:19:09,941 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 04:19:09,942 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 04:19:09,944 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 04:19:09,944 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 04:19:09,946 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 04:19:09,946 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 04:19:09,947 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 04:19:09,948 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 04:19:09,948 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 04:19:09,949 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 04:19:09,949 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 04:19:09,950 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 04:19:09,950 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 04:19:09,950 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 04:19:09,951 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 04:19:09,951 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 04:19:09,962 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:19:09,964 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:19:09,965 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:19:09,965 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:19:09,965 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:19:09,965 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:19:09,965 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:19:09,966 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:19:09,966 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:19:09,966 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:19:09,966 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:19:09,966 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:19:09,966 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:19:09,966 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:19:09,967 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:19:09,967 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:19:09,967 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:19:09,967 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:19:09,967 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:19:09,967 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:19:09,967 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:19:09,968 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:19:09,968 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-04 04:19:09,968 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-04 04:19:09,968 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-02-04 04:19:09,997 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:19:10,008 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:19:10,013 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:19:10,014 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:19:10,014 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:19:10,016 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-circular_true-unreach-call_true-valid-memsafety.i [2018-02-04 04:19:10,156 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:19:10,158 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:19:10,158 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:19:10,159 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:19:10,165 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:19:10,166 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:19:10" (1/1) ... [2018-02-04 04:19:10,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37bd4086 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:19:10, skipping insertion in model container [2018-02-04 04:19:10,168 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:19:10" (1/1) ... [2018-02-04 04:19:10,182 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:19:10,212 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:19:10,309 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:19:10,323 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:19:10,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:19:10 WrapperNode [2018-02-04 04:19:10,330 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:19:10,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:19:10,331 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:19:10,331 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:19:10,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:19:10" (1/1) ... [2018-02-04 04:19:10,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:19:10" (1/1) ... [2018-02-04 04:19:10,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:19:10" (1/1) ... [2018-02-04 04:19:10,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:19:10" (1/1) ... [2018-02-04 04:19:10,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:19:10" (1/1) ... [2018-02-04 04:19:10,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:19:10" (1/1) ... [2018-02-04 04:19:10,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:19:10" (1/1) ... [2018-02-04 04:19:10,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:19:10,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:19:10,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:19:10,362 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:19:10,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:19:10" (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 04:19:10,398 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:19:10,398 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:19:10,399 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:19:10,399 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-04 04:19:10,399 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-04 04:19:10,399 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 04:19:10,399 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 04:19:10,399 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:19:10,399 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:19:10,399 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:19:10,399 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 04:19:10,399 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 04:19:10,399 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 04:19:10,399 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-02-04 04:19:10,400 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:19:10,400 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:19:10,400 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:19:10,704 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:19:10,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:19:10 BoogieIcfgContainer [2018-02-04 04:19:10,705 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:19:10,705 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:19:10,705 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:19:10,707 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:19:10,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:19:10" (1/3) ... [2018-02-04 04:19:10,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7f2226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:19:10, skipping insertion in model container [2018-02-04 04:19:10,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:19:10" (2/3) ... [2018-02-04 04:19:10,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7f2226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:19:10, skipping insertion in model container [2018-02-04 04:19:10,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:19:10" (3/3) ... [2018-02-04 04:19:10,710 INFO L107 eAbstractionObserver]: Analyzing ICFG dll-circular_true-unreach-call_true-valid-memsafety.i [2018-02-04 04:19:10,718 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:19:10,725 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 47 error locations. [2018-02-04 04:19:10,757 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:19:10,758 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:19:10,758 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-04 04:19:10,758 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-04 04:19:10,758 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:19:10,758 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:19:10,758 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:19:10,759 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:19:10,759 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:19:10,772 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2018-02-04 04:19:10,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-04 04:19:10,780 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:19:10,781 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:19:10,781 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr46EnsuresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:19:10,785 INFO L82 PathProgramCache]: Analyzing trace with hash 414289043, now seen corresponding path program 1 times [2018-02-04 04:19:10,786 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:19:10,787 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:19:10,831 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:19:10,831 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:19:10,831 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:19:10,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:19:10,871 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:19:10,921 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 04:19:10,923 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:19:10,923 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 04:19:10,925 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 04:19:10,933 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 04:19:10,933 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 04:19:10,935 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 4 states. [2018-02-04 04:19:11,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:19:11,133 INFO L93 Difference]: Finished difference Result 123 states and 130 transitions. [2018-02-04 04:19:11,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 04:19:11,134 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-02-04 04:19:11,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:19:11,140 INFO L225 Difference]: With dead ends: 123 [2018-02-04 04:19:11,140 INFO L226 Difference]: Without dead ends: 120 [2018-02-04 04:19:11,141 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:19:11,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2018-02-04 04:19:11,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 105. [2018-02-04 04:19:11,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-02-04 04:19:11,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 111 transitions. [2018-02-04 04:19:11,166 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 111 transitions. Word has length 8 [2018-02-04 04:19:11,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:19:11,167 INFO L432 AbstractCegarLoop]: Abstraction has 105 states and 111 transitions. [2018-02-04 04:19:11,167 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 04:19:11,167 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 111 transitions. [2018-02-04 04:19:11,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-04 04:19:11,167 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:19:11,167 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:19:11,167 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr46EnsuresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:19:11,168 INFO L82 PathProgramCache]: Analyzing trace with hash 414289044, now seen corresponding path program 1 times [2018-02-04 04:19:11,168 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:19:11,168 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:19:11,168 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:19:11,168 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:19:11,169 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:19:11,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:19:11,178 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:19:11,228 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 04:19:11,228 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:19:11,228 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 04:19:11,229 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 04:19:11,230 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 04:19:11,230 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 04:19:11,230 INFO L87 Difference]: Start difference. First operand 105 states and 111 transitions. Second operand 4 states. [2018-02-04 04:19:11,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:19:11,336 INFO L93 Difference]: Finished difference Result 111 states and 117 transitions. [2018-02-04 04:19:11,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 04:19:11,337 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-02-04 04:19:11,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:19:11,338 INFO L225 Difference]: With dead ends: 111 [2018-02-04 04:19:11,338 INFO L226 Difference]: Without dead ends: 111 [2018-02-04 04:19:11,339 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:19:11,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2018-02-04 04:19:11,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 100. [2018-02-04 04:19:11,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-02-04 04:19:11,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 106 transitions. [2018-02-04 04:19:11,346 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 106 transitions. Word has length 8 [2018-02-04 04:19:11,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:19:11,347 INFO L432 AbstractCegarLoop]: Abstraction has 100 states and 106 transitions. [2018-02-04 04:19:11,347 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 04:19:11,347 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 106 transitions. [2018-02-04 04:19:11,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-04 04:19:11,347 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:19:11,348 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:19:11,348 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr46EnsuresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:19:11,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1743556376, now seen corresponding path program 1 times [2018-02-04 04:19:11,348 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:19:11,348 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:19:11,349 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:19:11,349 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:19:11,349 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:19:11,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:19:11,364 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:19:11,400 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 04:19:11,400 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:19:11,400 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 04:19:11,401 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 04:19:11,401 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 04:19:11,401 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 04:19:11,401 INFO L87 Difference]: Start difference. First operand 100 states and 106 transitions. Second operand 4 states. [2018-02-04 04:19:11,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:19:11,487 INFO L93 Difference]: Finished difference Result 95 states and 102 transitions. [2018-02-04 04:19:11,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:19:11,487 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-02-04 04:19:11,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:19:11,488 INFO L225 Difference]: With dead ends: 95 [2018-02-04 04:19:11,489 INFO L226 Difference]: Without dead ends: 95 [2018-02-04 04:19:11,489 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:19:11,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2018-02-04 04:19:11,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 88. [2018-02-04 04:19:11,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-02-04 04:19:11,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 94 transitions. [2018-02-04 04:19:11,494 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 94 transitions. Word has length 15 [2018-02-04 04:19:11,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:19:11,495 INFO L432 AbstractCegarLoop]: Abstraction has 88 states and 94 transitions. [2018-02-04 04:19:11,495 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 04:19:11,495 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 94 transitions. [2018-02-04 04:19:11,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-04 04:19:11,496 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:19:11,496 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:19:11,496 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr46EnsuresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:19:11,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1743556377, now seen corresponding path program 1 times [2018-02-04 04:19:11,496 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:19:11,496 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:19:11,497 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:19:11,497 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:19:11,497 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:19:11,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:19:11,512 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:19:11,572 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 04:19:11,573 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:19:11,573 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:19:11,573 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:19:11,573 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:19:11,574 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:19:11,574 INFO L87 Difference]: Start difference. First operand 88 states and 94 transitions. Second operand 5 states. [2018-02-04 04:19:11,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:19:11,684 INFO L93 Difference]: Finished difference Result 113 states and 120 transitions. [2018-02-04 04:19:11,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:19:11,684 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-02-04 04:19:11,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:19:11,684 INFO L225 Difference]: With dead ends: 113 [2018-02-04 04:19:11,685 INFO L226 Difference]: Without dead ends: 113 [2018-02-04 04:19:11,685 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-02-04 04:19:11,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2018-02-04 04:19:11,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 98. [2018-02-04 04:19:11,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-02-04 04:19:11,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 107 transitions. [2018-02-04 04:19:11,688 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 107 transitions. Word has length 15 [2018-02-04 04:19:11,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:19:11,688 INFO L432 AbstractCegarLoop]: Abstraction has 98 states and 107 transitions. [2018-02-04 04:19:11,688 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:19:11,689 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 107 transitions. [2018-02-04 04:19:11,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-02-04 04:19:11,689 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:19:11,689 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:19:11,689 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr46EnsuresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:19:11,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1046426684, now seen corresponding path program 1 times [2018-02-04 04:19:11,689 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:19:11,689 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:19:11,690 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:19:11,690 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:19:11,690 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:19:11,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:19:11,702 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:19:11,787 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 04:19:11,787 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:19:11,787 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:19:11,787 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:19:11,788 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:19:11,788 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:19:11,788 INFO L87 Difference]: Start difference. First operand 98 states and 107 transitions. Second operand 5 states. [2018-02-04 04:19:11,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:19:11,936 INFO L93 Difference]: Finished difference Result 145 states and 155 transitions. [2018-02-04 04:19:11,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:19:11,936 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-02-04 04:19:11,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:19:11,937 INFO L225 Difference]: With dead ends: 145 [2018-02-04 04:19:11,937 INFO L226 Difference]: Without dead ends: 145 [2018-02-04 04:19:11,937 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-02-04 04:19:11,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2018-02-04 04:19:11,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 97. [2018-02-04 04:19:11,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-02-04 04:19:11,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 105 transitions. [2018-02-04 04:19:11,940 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 105 transitions. Word has length 18 [2018-02-04 04:19:11,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:19:11,941 INFO L432 AbstractCegarLoop]: Abstraction has 97 states and 105 transitions. [2018-02-04 04:19:11,941 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:19:11,941 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 105 transitions. [2018-02-04 04:19:11,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-02-04 04:19:11,941 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:19:11,941 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:19:11,941 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr46EnsuresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:19:11,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1046426685, now seen corresponding path program 1 times [2018-02-04 04:19:11,941 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:19:11,941 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:19:11,942 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:19:11,942 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:19:11,942 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:19:11,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:19:11,949 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:19:11,991 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 04:19:11,992 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:19:11,992 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:19:11,992 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:19:11,992 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:19:11,992 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:19:11,992 INFO L87 Difference]: Start difference. First operand 97 states and 105 transitions. Second operand 5 states. [2018-02-04 04:19:12,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:19:12,164 INFO L93 Difference]: Finished difference Result 141 states and 151 transitions. [2018-02-04 04:19:12,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:19:12,164 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-02-04 04:19:12,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:19:12,165 INFO L225 Difference]: With dead ends: 141 [2018-02-04 04:19:12,165 INFO L226 Difference]: Without dead ends: 141 [2018-02-04 04:19:12,165 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-02-04 04:19:12,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-02-04 04:19:12,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 96. [2018-02-04 04:19:12,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-02-04 04:19:12,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 103 transitions. [2018-02-04 04:19:12,170 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 103 transitions. Word has length 18 [2018-02-04 04:19:12,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:19:12,171 INFO L432 AbstractCegarLoop]: Abstraction has 96 states and 103 transitions. [2018-02-04 04:19:12,171 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:19:12,171 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 103 transitions. [2018-02-04 04:19:12,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-04 04:19:12,171 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:19:12,171 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 04:19:12,172 INFO L371 AbstractCegarLoop]: === Iteration 7 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr46EnsuresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:19:12,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1771867382, now seen corresponding path program 1 times [2018-02-04 04:19:12,172 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:19:12,172 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:19:12,173 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:19:12,173 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:19:12,173 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:19:12,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:19:12,186 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:19:12,192 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 04:19:12,195 INFO L168 Benchmark]: Toolchain (without parser) took 2037.92 ms. Allocated memory was 400.6 MB in the beginning and 626.0 MB in the end (delta: 225.4 MB). Free memory was 357.4 MB in the beginning and 570.6 MB in the end (delta: -213.2 MB). Peak memory consumption was 12.3 MB. Max. memory is 5.3 GB. [2018-02-04 04:19:12,196 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 400.6 MB. Free memory is still 364.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:19:12,196 INFO L168 Benchmark]: CACSL2BoogieTranslator took 172.04 ms. Allocated memory is still 400.6 MB. Free memory was 357.4 MB in the beginning and 345.4 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 5.3 GB. [2018-02-04 04:19:12,196 INFO L168 Benchmark]: Boogie Preprocessor took 31.00 ms. Allocated memory is still 400.6 MB. Free memory was 345.4 MB in the beginning and 344.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-04 04:19:12,197 INFO L168 Benchmark]: RCFGBuilder took 343.10 ms. Allocated memory is still 400.6 MB. Free memory was 344.1 MB in the beginning and 311.4 MB in the end (delta: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 5.3 GB. [2018-02-04 04:19:12,197 INFO L168 Benchmark]: TraceAbstraction took 1488.72 ms. Allocated memory was 400.6 MB in the beginning and 626.0 MB in the end (delta: 225.4 MB). Free memory was 311.4 MB in the beginning and 570.6 MB in the end (delta: -259.2 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:19:12,198 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 400.6 MB. Free memory is still 364.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 172.04 ms. Allocated memory is still 400.6 MB. Free memory was 357.4 MB in the beginning and 345.4 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 31.00 ms. Allocated memory is still 400.6 MB. Free memory was 345.4 MB in the beginning and 344.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 343.10 ms. Allocated memory is still 400.6 MB. Free memory was 344.1 MB in the beginning and 311.4 MB in the end (delta: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1488.72 ms. Allocated memory was 400.6 MB in the beginning and 626.0 MB in the end (delta: 225.4 MB). Free memory was 311.4 MB in the beginning and 570.6 MB in the end (delta: -259.2 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/dll-circular_true-unreach-call_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_04-19-12-204.csv Received shutdown request...