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/memsafety-ext/tree_cnstr_true-valid-memsafety_false-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-a74eeac-m [2018-02-02 21:03:40,854 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 21:03:40,855 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 21:03:40,868 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 21:03:40,868 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 21:03:40,869 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 21:03:40,870 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 21:03:40,871 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 21:03:40,873 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 21:03:40,874 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 21:03:40,874 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 21:03:40,875 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 21:03:40,875 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 21:03:40,876 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 21:03:40,877 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 21:03:40,879 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 21:03:40,880 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 21:03:40,882 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 21:03:40,883 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 21:03:40,884 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 21:03:40,886 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-02 21:03:40,890 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-02 21:03:40,890 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-02 21:03:40,891 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 21:03:40,899 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 21:03:40,900 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 21:03:40,901 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 21:03:40,901 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 21:03:40,901 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 21:03:40,901 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 21:03:40,901 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 21:03:40,901 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 21:03:40,902 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 21:03:40,902 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 21:03:40,902 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 21:03:40,902 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 21:03:40,902 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 21:03:40,902 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 21:03:40,902 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 21:03:40,903 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 21:03:40,903 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 21:03:40,903 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 21:03:40,903 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 21:03:40,903 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 21:03:40,903 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 21:03:40,904 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 21:03:40,904 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-02 21:03:40,904 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-02 21:03:40,904 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-02-02 21:03:40,935 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 21:03:40,943 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 21:03:40,946 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 21:03:40,947 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 21:03:40,948 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 21:03:40,949 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety-ext/tree_cnstr_true-valid-memsafety_false-termination.i [2018-02-02 21:03:41,073 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 21:03:41,073 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 21:03:41,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 21:03:41,074 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 21:03:41,078 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 21:03:41,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:03:41" (1/1) ... [2018-02-02 21:03:41,080 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13c55627 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:03:41, skipping insertion in model container [2018-02-02 21:03:41,081 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:03:41" (1/1) ... [2018-02-02 21:03:41,090 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 21:03:41,119 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 21:03:41,205 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 21:03:41,218 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 21:03:41,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:03:41 WrapperNode [2018-02-02 21:03:41,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 21:03:41,223 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 21:03:41,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 21:03:41,224 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 21:03:41,233 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:03:41" (1/1) ... [2018-02-02 21:03:41,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:03:41" (1/1) ... [2018-02-02 21:03:41,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:03:41" (1/1) ... [2018-02-02 21:03:41,242 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:03:41" (1/1) ... [2018-02-02 21:03:41,246 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:03:41" (1/1) ... [2018-02-02 21:03:41,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:03:41" (1/1) ... [2018-02-02 21:03:41,251 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:03:41" (1/1) ... [2018-02-02 21:03:41,253 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 21:03:41,254 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 21:03:41,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 21:03:41,254 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 21:03:41,255 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:03:41" (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 21:03:41,294 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 21:03:41,294 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 21:03:41,294 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 21:03:41,294 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-02 21:03:41,295 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-02 21:03:41,295 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 21:03:41,295 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 21:03:41,295 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 21:03:41,295 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-02 21:03:41,295 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-02 21:03:41,295 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-02 21:03:41,295 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 21:03:41,295 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 21:03:41,295 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 21:03:41,689 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 21:03:41,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:03:41 BoogieIcfgContainer [2018-02-02 21:03:41,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 21:03:41,690 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 21:03:41,690 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 21:03:41,692 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 21:03:41,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 09:03:41" (1/3) ... [2018-02-02 21:03:41,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e1ce20d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:03:41, skipping insertion in model container [2018-02-02 21:03:41,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:03:41" (2/3) ... [2018-02-02 21:03:41,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e1ce20d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:03:41, skipping insertion in model container [2018-02-02 21:03:41,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:03:41" (3/3) ... [2018-02-02 21:03:41,695 INFO L107 eAbstractionObserver]: Analyzing ICFG tree_cnstr_true-valid-memsafety_false-termination.i [2018-02-02 21:03:41,703 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-02 21:03:41,711 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 55 error locations. [2018-02-02 21:03:41,746 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 21:03:41,746 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 21:03:41,746 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-02 21:03:41,747 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-02 21:03:41,747 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 21:03:41,747 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 21:03:41,747 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 21:03:41,747 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 21:03:41,747 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 21:03:41,758 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states. [2018-02-02 21:03:41,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-02 21:03:41,766 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:03:41,766 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:03:41,767 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 21:03:41,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1341839433, now seen corresponding path program 1 times [2018-02-02 21:03:41,771 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:03:41,771 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:03:41,802 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:03:41,802 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:03:41,802 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:03:41,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:03:41,839 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:03:41,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 21:03:41,881 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:03:41,882 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 21:03:41,883 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-02 21:03:41,891 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-02 21:03:41,891 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-02 21:03:41,893 INFO L87 Difference]: Start difference. First operand 130 states. Second operand 4 states. [2018-02-02 21:03:42,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:03:42,146 INFO L93 Difference]: Finished difference Result 174 states and 193 transitions. [2018-02-02 21:03:42,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-02 21:03:42,148 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-02-02 21:03:42,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:03:42,160 INFO L225 Difference]: With dead ends: 174 [2018-02-02 21:03:42,160 INFO L226 Difference]: Without dead ends: 170 [2018-02-02 21:03:42,162 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 21:03:42,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2018-02-02 21:03:42,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 125. [2018-02-02 21:03:42,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-02-02 21:03:42,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 138 transitions. [2018-02-02 21:03:42,196 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 138 transitions. Word has length 8 [2018-02-02 21:03:42,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:03:42,197 INFO L432 AbstractCegarLoop]: Abstraction has 125 states and 138 transitions. [2018-02-02 21:03:42,197 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-02 21:03:42,197 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 138 transitions. [2018-02-02 21:03:42,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-02 21:03:42,197 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:03:42,197 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:03:42,197 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 21:03:42,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1341839434, now seen corresponding path program 1 times [2018-02-02 21:03:42,198 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:03:42,198 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:03:42,199 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:03:42,199 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:03:42,199 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:03:42,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:03:42,214 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:03:42,260 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 21:03:42,260 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:03:42,260 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 21:03:42,262 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-02 21:03:42,262 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-02 21:03:42,262 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-02 21:03:42,262 INFO L87 Difference]: Start difference. First operand 125 states and 138 transitions. Second operand 4 states. [2018-02-02 21:03:42,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:03:42,371 INFO L93 Difference]: Finished difference Result 165 states and 183 transitions. [2018-02-02 21:03:42,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-02 21:03:42,371 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-02-02 21:03:42,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:03:42,374 INFO L225 Difference]: With dead ends: 165 [2018-02-02 21:03:42,374 INFO L226 Difference]: Without dead ends: 165 [2018-02-02 21:03:42,374 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 21:03:42,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2018-02-02 21:03:42,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 123. [2018-02-02 21:03:42,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2018-02-02 21:03:42,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 136 transitions. [2018-02-02 21:03:42,384 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 136 transitions. Word has length 8 [2018-02-02 21:03:42,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:03:42,384 INFO L432 AbstractCegarLoop]: Abstraction has 123 states and 136 transitions. [2018-02-02 21:03:42,385 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-02 21:03:42,385 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 136 transitions. [2018-02-02 21:03:42,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-02 21:03:42,385 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:03:42,385 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:03:42,385 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 21:03:42,386 INFO L82 PathProgramCache]: Analyzing trace with hash 557054198, now seen corresponding path program 1 times [2018-02-02 21:03:42,386 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:03:42,386 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:03:42,387 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:03:42,387 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:03:42,387 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:03:42,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:03:42,398 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:03:42,429 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 21:03:42,429 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:03:42,429 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 21:03:42,430 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-02 21:03:42,430 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-02 21:03:42,430 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-02 21:03:42,430 INFO L87 Difference]: Start difference. First operand 123 states and 136 transitions. Second operand 4 states. [2018-02-02 21:03:42,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:03:42,578 INFO L93 Difference]: Finished difference Result 154 states and 173 transitions. [2018-02-02 21:03:42,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 21:03:42,579 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-02-02 21:03:42,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:03:42,580 INFO L225 Difference]: With dead ends: 154 [2018-02-02 21:03:42,580 INFO L226 Difference]: Without dead ends: 154 [2018-02-02 21:03:42,581 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 21:03:42,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2018-02-02 21:03:42,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 113. [2018-02-02 21:03:42,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-02-02 21:03:42,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 129 transitions. [2018-02-02 21:03:42,589 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 129 transitions. Word has length 14 [2018-02-02 21:03:42,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:03:42,590 INFO L432 AbstractCegarLoop]: Abstraction has 113 states and 129 transitions. [2018-02-02 21:03:42,590 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-02 21:03:42,590 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 129 transitions. [2018-02-02 21:03:42,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-02 21:03:42,590 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:03:42,590 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:03:42,591 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 21:03:42,591 INFO L82 PathProgramCache]: Analyzing trace with hash 557054199, now seen corresponding path program 1 times [2018-02-02 21:03:42,591 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:03:42,591 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:03:42,592 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:03:42,592 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:03:42,592 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:03:42,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:03:42,606 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:03:42,659 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 21:03:42,659 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:03:42,659 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 21:03:42,660 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 21:03:42,660 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 21:03:42,660 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 21:03:42,660 INFO L87 Difference]: Start difference. First operand 113 states and 129 transitions. Second operand 5 states. [2018-02-02 21:03:42,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:03:42,868 INFO L93 Difference]: Finished difference Result 233 states and 265 transitions. [2018-02-02 21:03:42,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 21:03:42,868 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-02-02 21:03:42,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:03:42,870 INFO L225 Difference]: With dead ends: 233 [2018-02-02 21:03:42,870 INFO L226 Difference]: Without dead ends: 233 [2018-02-02 21:03:42,870 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 21:03:42,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2018-02-02 21:03:42,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 182. [2018-02-02 21:03:42,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-02-02 21:03:42,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 240 transitions. [2018-02-02 21:03:42,879 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 240 transitions. Word has length 14 [2018-02-02 21:03:42,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:03:42,880 INFO L432 AbstractCegarLoop]: Abstraction has 182 states and 240 transitions. [2018-02-02 21:03:42,880 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 21:03:42,880 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 240 transitions. [2018-02-02 21:03:42,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-02-02 21:03:42,880 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:03:42,880 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:03:42,881 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 21:03:42,881 INFO L82 PathProgramCache]: Analyzing trace with hash -505191267, now seen corresponding path program 1 times [2018-02-02 21:03:42,881 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:03:42,881 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:03:42,882 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:03:42,882 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:03:42,882 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:03:42,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:03:42,891 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:03:42,912 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 21:03:42,912 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:03:42,912 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 21:03:42,912 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-02 21:03:42,912 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-02 21:03:42,912 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-02 21:03:42,912 INFO L87 Difference]: Start difference. First operand 182 states and 240 transitions. Second operand 4 states. [2018-02-02 21:03:42,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:03:42,924 INFO L93 Difference]: Finished difference Result 195 states and 238 transitions. [2018-02-02 21:03:42,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-02 21:03:42,927 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-02-02 21:03:42,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:03:42,928 INFO L225 Difference]: With dead ends: 195 [2018-02-02 21:03:42,928 INFO L226 Difference]: Without dead ends: 195 [2018-02-02 21:03:42,928 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 21:03:42,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2018-02-02 21:03:42,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 182. [2018-02-02 21:03:42,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-02-02 21:03:42,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 238 transitions. [2018-02-02 21:03:42,935 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 238 transitions. Word has length 17 [2018-02-02 21:03:42,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:03:42,936 INFO L432 AbstractCegarLoop]: Abstraction has 182 states and 238 transitions. [2018-02-02 21:03:42,936 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-02 21:03:42,936 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 238 transitions. [2018-02-02 21:03:42,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-02 21:03:42,937 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:03:42,937 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 21:03:42,937 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 21:03:42,937 INFO L82 PathProgramCache]: Analyzing trace with hash -605576120, now seen corresponding path program 1 times [2018-02-02 21:03:42,937 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:03:42,937 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:03:42,938 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:03:42,938 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:03:42,938 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:03:42,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:03:42,948 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:03:42,975 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 21:03:42,975 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:03:42,975 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 21:03:42,975 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-02 21:03:42,976 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-02 21:03:42,976 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 21:03:42,976 INFO L87 Difference]: Start difference. First operand 182 states and 238 transitions. Second operand 3 states. [2018-02-02 21:03:42,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:03:42,986 INFO L93 Difference]: Finished difference Result 185 states and 241 transitions. [2018-02-02 21:03:42,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-02 21:03:42,987 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2018-02-02 21:03:42,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:03:42,988 INFO L225 Difference]: With dead ends: 185 [2018-02-02 21:03:42,988 INFO L226 Difference]: Without dead ends: 185 [2018-02-02 21:03:42,989 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 21:03:42,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2018-02-02 21:03:42,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2018-02-02 21:03:42,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2018-02-02 21:03:42,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 241 transitions. [2018-02-02 21:03:42,995 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 241 transitions. Word has length 22 [2018-02-02 21:03:42,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:03:42,995 INFO L432 AbstractCegarLoop]: Abstraction has 185 states and 241 transitions. [2018-02-02 21:03:42,995 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-02 21:03:42,995 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 241 transitions. [2018-02-02 21:03:42,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-02 21:03:42,996 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:03:42,996 INFO L351 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:03:42,996 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 21:03:42,997 INFO L82 PathProgramCache]: Analyzing trace with hash 927704743, now seen corresponding path program 1 times [2018-02-02 21:03:42,997 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:03:42,997 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:03:42,998 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:03:42,998 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:03:42,998 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:03:43,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:03:43,008 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:03:43,024 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 21:03:43,024 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:03:43,024 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 21:03:43,024 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-02 21:03:43,024 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-02 21:03:43,024 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 21:03:43,025 INFO L87 Difference]: Start difference. First operand 185 states and 241 transitions. Second operand 3 states. [2018-02-02 21:03:43,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:03:43,030 INFO L93 Difference]: Finished difference Result 187 states and 243 transitions. [2018-02-02 21:03:43,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-02 21:03:43,030 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2018-02-02 21:03:43,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:03:43,031 INFO L225 Difference]: With dead ends: 187 [2018-02-02 21:03:43,031 INFO L226 Difference]: Without dead ends: 187 [2018-02-02 21:03:43,031 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 21:03:43,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2018-02-02 21:03:43,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2018-02-02 21:03:43,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2018-02-02 21:03:43,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 243 transitions. [2018-02-02 21:03:43,037 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 243 transitions. Word has length 22 [2018-02-02 21:03:43,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:03:43,037 INFO L432 AbstractCegarLoop]: Abstraction has 187 states and 243 transitions. [2018-02-02 21:03:43,037 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-02 21:03:43,037 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 243 transitions. [2018-02-02 21:03:43,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-02-02 21:03:43,038 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:03:43,038 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:03:43,038 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 21:03:43,038 INFO L82 PathProgramCache]: Analyzing trace with hash -2088156413, now seen corresponding path program 1 times [2018-02-02 21:03:43,038 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:03:43,038 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:03:43,039 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:03:43,039 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:03:43,039 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:03:43,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:03:43,048 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:03:43,078 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 21:03:43,078 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:03:43,078 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 21:03:43,078 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-02 21:03:43,079 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-02 21:03:43,079 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 21:03:43,079 INFO L87 Difference]: Start difference. First operand 187 states and 243 transitions. Second operand 3 states. [2018-02-02 21:03:43,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:03:43,091 INFO L93 Difference]: Finished difference Result 201 states and 251 transitions. [2018-02-02 21:03:43,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-02 21:03:43,092 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2018-02-02 21:03:43,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:03:43,093 INFO L225 Difference]: With dead ends: 201 [2018-02-02 21:03:43,093 INFO L226 Difference]: Without dead ends: 201 [2018-02-02 21:03:43,093 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 21:03:43,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2018-02-02 21:03:43,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 190. [2018-02-02 21:03:43,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2018-02-02 21:03:43,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 243 transitions. [2018-02-02 21:03:43,097 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 243 transitions. Word has length 24 [2018-02-02 21:03:43,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:03:43,098 INFO L432 AbstractCegarLoop]: Abstraction has 190 states and 243 transitions. [2018-02-02 21:03:43,098 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-02 21:03:43,098 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 243 transitions. [2018-02-02 21:03:43,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-02-02 21:03:43,099 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:03:43,099 INFO L351 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:03:43,099 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 21:03:43,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1439697764, now seen corresponding path program 1 times [2018-02-02 21:03:43,099 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:03:43,099 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:03:43,100 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:03:43,100 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:03:43,100 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:03:43,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:03:43,113 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:03:43,118 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 21:03:43,121 INFO L168 Benchmark]: Toolchain (without parser) took 2048.42 ms. Allocated memory was 393.2 MB in the beginning and 615.5 MB in the end (delta: 222.3 MB). Free memory was 349.9 MB in the beginning and 575.5 MB in the end (delta: -225.6 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 21:03:43,123 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 393.2 MB. Free memory is still 356.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 21:03:43,123 INFO L168 Benchmark]: CACSL2BoogieTranslator took 149.26 ms. Allocated memory is still 393.2 MB. Free memory was 349.9 MB in the beginning and 339.3 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-02-02 21:03:43,123 INFO L168 Benchmark]: Boogie Preprocessor took 30.13 ms. Allocated memory is still 393.2 MB. Free memory was 339.3 MB in the beginning and 336.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 5.3 GB. [2018-02-02 21:03:43,123 INFO L168 Benchmark]: RCFGBuilder took 435.38 ms. Allocated memory is still 393.2 MB. Free memory was 336.6 MB in the beginning and 300.5 MB in the end (delta: 36.1 MB). Peak memory consumption was 36.1 MB. Max. memory is 5.3 GB. [2018-02-02 21:03:43,123 INFO L168 Benchmark]: TraceAbstraction took 1430.98 ms. Allocated memory was 393.2 MB in the beginning and 615.5 MB in the end (delta: 222.3 MB). Free memory was 300.5 MB in the beginning and 575.5 MB in the end (delta: -275.0 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 21:03:43,125 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 393.2 MB. Free memory is still 356.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 149.26 ms. Allocated memory is still 393.2 MB. Free memory was 349.9 MB in the beginning and 339.3 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 30.13 ms. Allocated memory is still 393.2 MB. Free memory was 339.3 MB in the beginning and 336.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 5.3 GB. * RCFGBuilder took 435.38 ms. Allocated memory is still 393.2 MB. Free memory was 336.6 MB in the beginning and 300.5 MB in the end (delta: 36.1 MB). Peak memory consumption was 36.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1430.98 ms. Allocated memory was 393.2 MB in the beginning and 615.5 MB in the end (delta: 222.3 MB). Free memory was 300.5 MB in the beginning and 575.5 MB in the end (delta: -275.0 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/tree_cnstr_true-valid-memsafety_false-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_21-03-43-131.csv Received shutdown request...