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-token_true-unreach-call_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-a74eeac-m [2018-02-02 21:11:03,737 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 21:11:03,738 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 21:11:03,752 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 21:11:03,752 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 21:11:03,753 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 21:11:03,754 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 21:11:03,755 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 21:11:03,757 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 21:11:03,758 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 21:11:03,759 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 21:11:03,759 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 21:11:03,760 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 21:11:03,761 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 21:11:03,762 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 21:11:03,764 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 21:11:03,766 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 21:11:03,767 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 21:11:03,771 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 21:11:03,772 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 21:11:03,774 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-02 21:11:03,775 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-02 21:11:03,775 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-02 21:11:03,776 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-02 21:11:03,777 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-02 21:11:03,778 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-02 21:11:03,778 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-02 21:11:03,779 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-02 21:11:03,779 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-02 21:11:03,779 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-02 21:11:03,780 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-02 21:11:03,780 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 21:11:03,795 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 21:11:03,795 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 21:11:03,796 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 21:11:03,796 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 21:11:03,796 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 21:11:03,797 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 21:11:03,797 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 21:11:03,797 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 21:11:03,797 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 21:11:03,797 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 21:11:03,797 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 21:11:03,798 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 21:11:03,798 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 21:11:03,798 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 21:11:03,798 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 21:11:03,798 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 21:11:03,798 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 21:11:03,799 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 21:11:03,799 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 21:11:03,799 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 21:11:03,799 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 21:11:03,799 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 21:11:03,799 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-02 21:11:03,799 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-02 21:11:03,800 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-02-02 21:11:03,827 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 21:11:03,836 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 21:11:03,839 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 21:11:03,841 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 21:11:03,841 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 21:11:03,842 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-token_true-unreach-call_true-valid-memsafety.i [2018-02-02 21:11:03,977 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 21:11:03,979 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 21:11:03,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 21:11:03,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 21:11:03,986 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 21:11:03,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:11:03" (1/1) ... [2018-02-02 21:11:03,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bd3f7c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:11:03, skipping insertion in model container [2018-02-02 21:11:03,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:11:03" (1/1) ... [2018-02-02 21:11:04,003 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 21:11:04,026 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 21:11:04,138 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 21:11:04,158 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 21:11:04,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:11:04 WrapperNode [2018-02-02 21:11:04,165 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 21:11:04,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 21:11:04,166 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 21:11:04,166 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 21:11:04,179 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:11:04" (1/1) ... [2018-02-02 21:11:04,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:11:04" (1/1) ... [2018-02-02 21:11:04,188 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:11:04" (1/1) ... [2018-02-02 21:11:04,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:11:04" (1/1) ... [2018-02-02 21:11:04,193 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:11:04" (1/1) ... [2018-02-02 21:11:04,197 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:11:04" (1/1) ... [2018-02-02 21:11:04,199 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:11:04" (1/1) ... [2018-02-02 21:11:04,201 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 21:11:04,201 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 21:11:04,201 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 21:11:04,201 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 21:11:04,202 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:11:04" (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 21:11:04,242 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 21:11:04,242 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 21:11:04,242 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 21:11:04,242 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-02 21:11:04,242 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-02 21:11:04,242 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-02 21:11:04,243 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-02 21:11:04,243 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 21:11:04,243 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 21:11:04,243 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 21:11:04,243 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-02 21:11:04,243 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-02 21:11:04,243 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-02 21:11:04,243 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-02-02 21:11:04,243 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 21:11:04,244 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 21:11:04,244 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 21:11:04,625 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 21:11:04,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:11:04 BoogieIcfgContainer [2018-02-02 21:11:04,625 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 21:11:04,626 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 21:11:04,626 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 21:11:04,628 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 21:11:04,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 09:11:03" (1/3) ... [2018-02-02 21:11:04,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d636a23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:11:04, skipping insertion in model container [2018-02-02 21:11:04,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:11:04" (2/3) ... [2018-02-02 21:11:04,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d636a23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:11:04, skipping insertion in model container [2018-02-02 21:11:04,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:11:04" (3/3) ... [2018-02-02 21:11:04,631 INFO L107 eAbstractionObserver]: Analyzing ICFG dll-token_true-unreach-call_true-valid-memsafety.i [2018-02-02 21:11:04,636 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-02 21:11:04,643 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 55 error locations. [2018-02-02 21:11:04,667 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 21:11:04,667 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 21:11:04,667 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-02 21:11:04,667 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-02 21:11:04,668 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 21:11:04,668 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 21:11:04,668 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 21:11:04,668 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 21:11:04,669 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 21:11:04,679 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states. [2018-02-02 21:11:04,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-02 21:11:04,689 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:11:04,690 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:11:04,690 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 21:11:04,694 INFO L82 PathProgramCache]: Analyzing trace with hash 460791465, now seen corresponding path program 1 times [2018-02-02 21:11:04,695 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:11:04,695 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:11:04,732 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:11:04,732 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:11:04,732 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:11:04,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:11:04,777 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:11:04,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 21:11:04,829 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:11:04,829 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 21:11:04,831 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-02 21:11:04,842 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-02 21:11:04,843 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-02 21:11:04,845 INFO L87 Difference]: Start difference. First operand 131 states. Second operand 4 states. [2018-02-02 21:11:05,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:11:05,077 INFO L93 Difference]: Finished difference Result 152 states and 155 transitions. [2018-02-02 21:11:05,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-02 21:11:05,079 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-02-02 21:11:05,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:11:05,089 INFO L225 Difference]: With dead ends: 152 [2018-02-02 21:11:05,089 INFO L226 Difference]: Without dead ends: 149 [2018-02-02 21:11:05,090 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 [2018-02-02 21:11:05,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2018-02-02 21:11:05,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 125. [2018-02-02 21:11:05,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-02-02 21:11:05,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 127 transitions. [2018-02-02 21:11:05,118 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 127 transitions. Word has length 8 [2018-02-02 21:11:05,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:11:05,118 INFO L432 AbstractCegarLoop]: Abstraction has 125 states and 127 transitions. [2018-02-02 21:11:05,118 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-02 21:11:05,119 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 127 transitions. [2018-02-02 21:11:05,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-02 21:11:05,119 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:11:05,119 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:11:05,119 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 21:11:05,119 INFO L82 PathProgramCache]: Analyzing trace with hash 460791466, now seen corresponding path program 1 times [2018-02-02 21:11:05,119 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:11:05,119 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:11:05,120 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:11:05,120 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:11:05,120 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:11:05,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:11:05,133 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:11:05,175 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 21:11:05,175 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:11:05,175 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 21:11:05,177 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-02 21:11:05,177 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-02 21:11:05,177 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-02 21:11:05,177 INFO L87 Difference]: Start difference. First operand 125 states and 127 transitions. Second operand 4 states. [2018-02-02 21:11:05,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:11:05,286 INFO L93 Difference]: Finished difference Result 146 states and 148 transitions. [2018-02-02 21:11:05,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-02 21:11:05,287 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-02-02 21:11:05,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:11:05,288 INFO L225 Difference]: With dead ends: 146 [2018-02-02 21:11:05,288 INFO L226 Difference]: Without dead ends: 146 [2018-02-02 21:11:05,289 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 [2018-02-02 21:11:05,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-02-02 21:11:05,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 122. [2018-02-02 21:11:05,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2018-02-02 21:11:05,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 124 transitions. [2018-02-02 21:11:05,296 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 124 transitions. Word has length 8 [2018-02-02 21:11:05,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:11:05,297 INFO L432 AbstractCegarLoop]: Abstraction has 122 states and 124 transitions. [2018-02-02 21:11:05,297 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-02 21:11:05,297 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 124 transitions. [2018-02-02 21:11:05,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-02 21:11:05,298 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:11:05,298 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:11:05,298 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 21:11:05,298 INFO L82 PathProgramCache]: Analyzing trace with hash 108566574, now seen corresponding path program 1 times [2018-02-02 21:11:05,298 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:11:05,299 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:11:05,299 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:11:05,300 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:11:05,300 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:11:05,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:11:05,316 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:11:05,379 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 21:11:05,379 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:11:05,379 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 21:11:05,380 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 21:11:05,380 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 21:11:05,380 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 21:11:05,380 INFO L87 Difference]: Start difference. First operand 122 states and 124 transitions. Second operand 5 states. [2018-02-02 21:11:05,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:11:05,579 INFO L93 Difference]: Finished difference Result 223 states and 227 transitions. [2018-02-02 21:11:05,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 21:11:05,579 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-02-02 21:11:05,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:11:05,581 INFO L225 Difference]: With dead ends: 223 [2018-02-02 21:11:05,581 INFO L226 Difference]: Without dead ends: 223 [2018-02-02 21:11:05,581 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 [2018-02-02 21:11:05,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2018-02-02 21:11:05,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 165. [2018-02-02 21:11:05,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2018-02-02 21:11:05,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 194 transitions. [2018-02-02 21:11:05,593 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 194 transitions. Word has length 15 [2018-02-02 21:11:05,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:11:05,594 INFO L432 AbstractCegarLoop]: Abstraction has 165 states and 194 transitions. [2018-02-02 21:11:05,594 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 21:11:05,594 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 194 transitions. [2018-02-02 21:11:05,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-02 21:11:05,594 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:11:05,594 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:11:05,594 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 21:11:05,595 INFO L82 PathProgramCache]: Analyzing trace with hash 108566573, now seen corresponding path program 1 times [2018-02-02 21:11:05,595 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:11:05,595 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:11:05,596 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:11:05,596 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:11:05,596 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:11:05,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:11:05,607 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:11:05,648 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 21:11:05,648 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:11:05,648 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 21:11:05,648 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-02 21:11:05,648 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-02 21:11:05,648 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-02 21:11:05,649 INFO L87 Difference]: Start difference. First operand 165 states and 194 transitions. Second operand 4 states. [2018-02-02 21:11:05,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:11:05,742 INFO L93 Difference]: Finished difference Result 152 states and 162 transitions. [2018-02-02 21:11:05,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 21:11:05,742 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-02-02 21:11:05,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:11:05,743 INFO L225 Difference]: With dead ends: 152 [2018-02-02 21:11:05,743 INFO L226 Difference]: Without dead ends: 152 [2018-02-02 21:11:05,743 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 [2018-02-02 21:11:05,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-02-02 21:11:05,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 150. [2018-02-02 21:11:05,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-02-02 21:11:05,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 162 transitions. [2018-02-02 21:11:05,750 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 162 transitions. Word has length 15 [2018-02-02 21:11:05,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:11:05,750 INFO L432 AbstractCegarLoop]: Abstraction has 150 states and 162 transitions. [2018-02-02 21:11:05,750 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-02 21:11:05,750 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 162 transitions. [2018-02-02 21:11:05,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-02-02 21:11:05,751 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:11:05,751 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:11:05,751 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 21:11:05,751 INFO L82 PathProgramCache]: Analyzing trace with hash 197081690, now seen corresponding path program 1 times [2018-02-02 21:11:05,751 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:11:05,751 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:11:05,752 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:11:05,752 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:11:05,752 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:11:05,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:11:05,765 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:11:05,823 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 21:11:05,823 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:11:05,823 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 21:11:05,823 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 21:11:05,824 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 21:11:05,824 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 21:11:05,824 INFO L87 Difference]: Start difference. First operand 150 states and 162 transitions. Second operand 5 states. [2018-02-02 21:11:06,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:11:06,029 INFO L93 Difference]: Finished difference Result 240 states and 255 transitions. [2018-02-02 21:11:06,029 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 21:11:06,029 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-02-02 21:11:06,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:11:06,030 INFO L225 Difference]: With dead ends: 240 [2018-02-02 21:11:06,030 INFO L226 Difference]: Without dead ends: 240 [2018-02-02 21:11:06,031 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 [2018-02-02 21:11:06,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2018-02-02 21:11:06,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 149. [2018-02-02 21:11:06,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2018-02-02 21:11:06,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 160 transitions. [2018-02-02 21:11:06,038 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 160 transitions. Word has length 18 [2018-02-02 21:11:06,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:11:06,038 INFO L432 AbstractCegarLoop]: Abstraction has 149 states and 160 transitions. [2018-02-02 21:11:06,038 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 21:11:06,038 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 160 transitions. [2018-02-02 21:11:06,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-02-02 21:11:06,039 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:11:06,039 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:11:06,039 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 21:11:06,039 INFO L82 PathProgramCache]: Analyzing trace with hash 197081689, now seen corresponding path program 1 times [2018-02-02 21:11:06,040 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:11:06,040 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:11:06,040 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:11:06,041 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:11:06,041 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:11:06,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:11:06,053 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:11:06,078 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 21:11:06,078 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:11:06,079 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 21:11:06,079 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 21:11:06,079 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 21:11:06,079 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 21:11:06,079 INFO L87 Difference]: Start difference. First operand 149 states and 160 transitions. Second operand 5 states. [2018-02-02 21:11:06,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:11:06,221 INFO L93 Difference]: Finished difference Result 212 states and 223 transitions. [2018-02-02 21:11:06,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 21:11:06,221 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-02-02 21:11:06,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:11:06,222 INFO L225 Difference]: With dead ends: 212 [2018-02-02 21:11:06,222 INFO L226 Difference]: Without dead ends: 212 [2018-02-02 21:11:06,222 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 [2018-02-02 21:11:06,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2018-02-02 21:11:06,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 148. [2018-02-02 21:11:06,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-02-02 21:11:06,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 158 transitions. [2018-02-02 21:11:06,228 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 158 transitions. Word has length 18 [2018-02-02 21:11:06,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:11:06,228 INFO L432 AbstractCegarLoop]: Abstraction has 148 states and 158 transitions. [2018-02-02 21:11:06,228 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 21:11:06,228 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 158 transitions. [2018-02-02 21:11:06,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-02 21:11:06,228 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:11:06,229 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:11:06,229 INFO L371 AbstractCegarLoop]: === Iteration 7 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 21:11:06,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1794584241, now seen corresponding path program 1 times [2018-02-02 21:11:06,229 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:11:06,229 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:11:06,230 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:11:06,230 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:11:06,230 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:11:06,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:11:06,240 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:11:06,265 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 21:11:06,265 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:11:06,265 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 21:11:06,266 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 21:11:06,266 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 21:11:06,266 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 21:11:06,266 INFO L87 Difference]: Start difference. First operand 148 states and 158 transitions. Second operand 5 states. [2018-02-02 21:11:06,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:11:06,352 INFO L93 Difference]: Finished difference Result 149 states and 156 transitions. [2018-02-02 21:11:06,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 21:11:06,352 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2018-02-02 21:11:06,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:11:06,353 INFO L225 Difference]: With dead ends: 149 [2018-02-02 21:11:06,353 INFO L226 Difference]: Without dead ends: 149 [2018-02-02 21:11:06,354 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 [2018-02-02 21:11:06,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2018-02-02 21:11:06,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 147. [2018-02-02 21:11:06,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2018-02-02 21:11:06,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 156 transitions. [2018-02-02 21:11:06,358 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 156 transitions. Word has length 19 [2018-02-02 21:11:06,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:11:06,358 INFO L432 AbstractCegarLoop]: Abstraction has 147 states and 156 transitions. [2018-02-02 21:11:06,358 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 21:11:06,358 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 156 transitions. [2018-02-02 21:11:06,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-02 21:11:06,359 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:11:06,359 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:11:06,359 INFO L371 AbstractCegarLoop]: === Iteration 8 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 21:11:06,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1794584242, now seen corresponding path program 1 times [2018-02-02 21:11:06,360 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:11:06,360 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:11:06,360 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:11:06,361 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:11:06,361 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:11:06,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:11:06,375 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:11:06,424 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 21:11:06,424 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:11:06,424 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 21:11:06,425 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 21:11:06,425 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 21:11:06,425 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 21:11:06,425 INFO L87 Difference]: Start difference. First operand 147 states and 156 transitions. Second operand 5 states. [2018-02-02 21:11:06,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:11:06,513 INFO L93 Difference]: Finished difference Result 146 states and 154 transitions. [2018-02-02 21:11:06,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 21:11:06,513 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2018-02-02 21:11:06,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:11:06,514 INFO L225 Difference]: With dead ends: 146 [2018-02-02 21:11:06,514 INFO L226 Difference]: Without dead ends: 146 [2018-02-02 21:11:06,514 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 [2018-02-02 21:11:06,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-02-02 21:11:06,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2018-02-02 21:11:06,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2018-02-02 21:11:06,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 154 transitions. [2018-02-02 21:11:06,516 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 154 transitions. Word has length 19 [2018-02-02 21:11:06,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:11:06,516 INFO L432 AbstractCegarLoop]: Abstraction has 146 states and 154 transitions. [2018-02-02 21:11:06,516 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 21:11:06,517 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 154 transitions. [2018-02-02 21:11:06,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-02 21:11:06,517 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:11:06,517 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] [2018-02-02 21:11:06,517 INFO L371 AbstractCegarLoop]: === Iteration 9 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr54EnsuresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 21:11:06,517 INFO L82 PathProgramCache]: Analyzing trace with hash -1293732257, now seen corresponding path program 1 times [2018-02-02 21:11:06,517 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:11:06,517 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:11:06,518 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:11:06,518 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:11:06,518 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:11:06,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:11:06,532 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:11:06,538 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 21:11:06,543 INFO L168 Benchmark]: Toolchain (without parser) took 2565.11 ms. Allocated memory was 404.2 MB in the beginning and 628.1 MB in the end (delta: 223.9 MB). Free memory was 361.1 MB in the beginning and 454.7 MB in the end (delta: -93.6 MB). Peak memory consumption was 130.3 MB. Max. memory is 5.3 GB. [2018-02-02 21:11:06,544 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 404.2 MB. Free memory is still 367.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 21:11:06,544 INFO L168 Benchmark]: CACSL2BoogieTranslator took 185.67 ms. Allocated memory is still 404.2 MB. Free memory was 361.1 MB in the beginning and 349.2 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. [2018-02-02 21:11:06,545 INFO L168 Benchmark]: Boogie Preprocessor took 35.35 ms. Allocated memory is still 404.2 MB. Free memory was 349.2 MB in the beginning and 347.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-02 21:11:06,545 INFO L168 Benchmark]: RCFGBuilder took 424.08 ms. Allocated memory is still 404.2 MB. Free memory was 346.6 MB in the beginning and 312.5 MB in the end (delta: 34.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 5.3 GB. [2018-02-02 21:11:06,545 INFO L168 Benchmark]: TraceAbstraction took 1916.43 ms. Allocated memory was 404.2 MB in the beginning and 628.1 MB in the end (delta: 223.9 MB). Free memory was 311.1 MB in the beginning and 454.7 MB in the end (delta: -143.6 MB). Peak memory consumption was 80.3 MB. Max. memory is 5.3 GB. [2018-02-02 21:11:06,546 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 404.2 MB. Free memory is still 367.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 185.67 ms. Allocated memory is still 404.2 MB. Free memory was 361.1 MB in the beginning and 349.2 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 35.35 ms. Allocated memory is still 404.2 MB. Free memory was 349.2 MB in the beginning and 347.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 424.08 ms. Allocated memory is still 404.2 MB. Free memory was 346.6 MB in the beginning and 312.5 MB in the end (delta: 34.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1916.43 ms. Allocated memory was 404.2 MB in the beginning and 628.1 MB in the end (delta: 223.9 MB). Free memory was 311.1 MB in the beginning and 454.7 MB in the end (delta: -143.6 MB). Peak memory consumption was 80.3 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/dll-token_true-unreach-call_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_21-11-06-551.csv Received shutdown request...