./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label03.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem14_label03.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f42c4f56a812271285d4588532c54f82291ae69c ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-27 23:09:34,086 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:09:34,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:09:34,106 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:09:34,106 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:09:34,108 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:09:34,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:09:34,111 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:09:34,113 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:09:34,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:09:34,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:09:34,117 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:09:34,117 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:09:34,118 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:09:34,119 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:09:34,120 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:09:34,121 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:09:34,122 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:09:34,125 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:09:34,127 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:09:34,128 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:09:34,129 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:09:34,131 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:09:34,132 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:09:34,134 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:09:34,134 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:09:34,135 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:09:34,136 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:09:34,136 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:09:34,137 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:09:34,138 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:09:34,139 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:09:34,139 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:09:34,140 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:09:34,141 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:09:34,142 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:09:34,142 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:09:34,143 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:09:34,143 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:09:34,144 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:09:34,145 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:09:34,146 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 23:09:34,160 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:09:34,161 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:09:34,162 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:09:34,162 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:09:34,163 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:09:34,163 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:09:34,163 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:09:34,164 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 23:09:34,164 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:09:34,164 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:09:34,164 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:09:34,165 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:09:34,165 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:09:34,165 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:09:34,166 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:09:34,166 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:09:34,166 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:09:34,167 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:09:34,167 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:09:34,167 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:09:34,167 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:09:34,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:09:34,168 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:09:34,168 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:09:34,169 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:09:34,169 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 23:09:34,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 23:09:34,170 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:09:34,170 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f42c4f56a812271285d4588532c54f82291ae69c [2019-11-27 23:09:34,473 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:09:34,494 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:09:34,497 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:09:34,499 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:09:34,499 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:09:34,501 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label03.c [2019-11-27 23:09:34,563 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e41378b5/657424bfca324a12889c5064a38afedf/FLAG8caf2a9a9 [2019-11-27 23:09:35,118 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:09:35,119 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label03.c [2019-11-27 23:09:35,145 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e41378b5/657424bfca324a12889c5064a38afedf/FLAG8caf2a9a9 [2019-11-27 23:09:35,391 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e41378b5/657424bfca324a12889c5064a38afedf [2019-11-27 23:09:35,394 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:09:35,396 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:09:35,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:09:35,397 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:09:35,401 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:09:35,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:09:35" (1/1) ... [2019-11-27 23:09:35,404 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4746e037 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:09:35, skipping insertion in model container [2019-11-27 23:09:35,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:09:35" (1/1) ... [2019-11-27 23:09:35,412 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:09:35,490 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:09:36,022 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:09:36,031 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:09:36,289 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:09:36,314 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:09:36,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:09:36 WrapperNode [2019-11-27 23:09:36,316 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:09:36,317 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:09:36,317 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:09:36,318 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:09:36,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:09:36" (1/1) ... [2019-11-27 23:09:36,372 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:09:36" (1/1) ... [2019-11-27 23:09:36,487 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:09:36,489 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:09:36,490 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:09:36,490 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:09:36,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:09:36" (1/1) ... [2019-11-27 23:09:36,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:09:36" (1/1) ... [2019-11-27 23:09:36,511 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:09:36" (1/1) ... [2019-11-27 23:09:36,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:09:36" (1/1) ... [2019-11-27 23:09:36,556 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:09:36" (1/1) ... [2019-11-27 23:09:36,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:09:36" (1/1) ... [2019-11-27 23:09:36,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:09:36" (1/1) ... [2019-11-27 23:09:36,615 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:09:36,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:09:36,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:09:36,616 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:09:36,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:09:36" (1/1) ... No working directory specified, using /storage/repos/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 [2019-11-27 23:09:36,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:09:36,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:09:38,029 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:09:38,029 INFO L297 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-27 23:09:38,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:09:38 BoogieIcfgContainer [2019-11-27 23:09:38,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:09:38,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:09:38,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:09:38,037 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:09:38,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:09:35" (1/3) ... [2019-11-27 23:09:38,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c030f3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:09:38, skipping insertion in model container [2019-11-27 23:09:38,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:09:36" (2/3) ... [2019-11-27 23:09:38,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c030f3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:09:38, skipping insertion in model container [2019-11-27 23:09:38,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:09:38" (3/3) ... [2019-11-27 23:09:38,043 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label03.c [2019-11-27 23:09:38,053 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:09:38,061 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 23:09:38,073 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 23:09:38,101 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:09:38,102 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:09:38,102 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:09:38,102 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:09:38,102 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:09:38,103 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:09:38,103 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:09:38,103 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:09:38,132 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states. [2019-11-27 23:09:38,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-11-27 23:09:38,144 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:09:38,145 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:09:38,145 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:09:38,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:09:38,151 INFO L82 PathProgramCache]: Analyzing trace with hash 2122806209, now seen corresponding path program 1 times [2019-11-27 23:09:38,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:09:38,160 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067310481] [2019-11-27 23:09:38,160 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:09:38,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:09:38,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:09:38,476 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067310481] [2019-11-27 23:09:38,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:09:38,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-27 23:09:38,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362731192] [2019-11-27 23:09:38,484 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-27 23:09:38,484 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 23:09:38,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-27 23:09:38,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-27 23:09:38,501 INFO L87 Difference]: Start difference. First operand 245 states. Second operand 4 states. [2019-11-27 23:09:40,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:09:40,309 INFO L93 Difference]: Finished difference Result 850 states and 1558 transitions. [2019-11-27 23:09:40,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-27 23:09:40,311 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2019-11-27 23:09:40,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:09:40,341 INFO L225 Difference]: With dead ends: 850 [2019-11-27 23:09:40,342 INFO L226 Difference]: Without dead ends: 538 [2019-11-27 23:09:40,355 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-27 23:09:40,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-11-27 23:09:40,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-11-27 23:09:40,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-11-27 23:09:40,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 826 transitions. [2019-11-27 23:09:40,492 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 826 transitions. Word has length 51 [2019-11-27 23:09:40,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:09:40,494 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 826 transitions. [2019-11-27 23:09:40,494 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-27 23:09:40,494 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 826 transitions. [2019-11-27 23:09:40,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2019-11-27 23:09:40,503 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:09:40,504 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:09:40,505 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:09:40,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:09:40,505 INFO L82 PathProgramCache]: Analyzing trace with hash 1750650828, now seen corresponding path program 1 times [2019-11-27 23:09:40,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:09:40,506 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266684581] [2019-11-27 23:09:40,506 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:09:40,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:09:40,766 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:09:40,766 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266684581] [2019-11-27 23:09:40,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:09:40,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-27 23:09:40,767 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977660675] [2019-11-27 23:09:40,770 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-27 23:09:40,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 23:09:40,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-27 23:09:40,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-27 23:09:40,771 INFO L87 Difference]: Start difference. First operand 538 states and 826 transitions. Second operand 4 states. [2019-11-27 23:09:42,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:09:42,123 INFO L93 Difference]: Finished difference Result 2142 states and 3296 transitions. [2019-11-27 23:09:42,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-27 23:09:42,129 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 116 [2019-11-27 23:09:42,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:09:42,140 INFO L225 Difference]: With dead ends: 2142 [2019-11-27 23:09:42,140 INFO L226 Difference]: Without dead ends: 1606 [2019-11-27 23:09:42,144 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-27 23:09:42,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2019-11-27 23:09:42,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1428. [2019-11-27 23:09:42,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1428 states. [2019-11-27 23:09:42,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 2029 transitions. [2019-11-27 23:09:42,198 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 2029 transitions. Word has length 116 [2019-11-27 23:09:42,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:09:42,200 INFO L462 AbstractCegarLoop]: Abstraction has 1428 states and 2029 transitions. [2019-11-27 23:09:42,200 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-27 23:09:42,200 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 2029 transitions. [2019-11-27 23:09:42,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-11-27 23:09:42,203 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:09:42,203 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:09:42,204 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:09:42,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:09:42,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1221588022, now seen corresponding path program 1 times [2019-11-27 23:09:42,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:09:42,205 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367186226] [2019-11-27 23:09:42,205 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:09:42,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:09:42,348 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:09:42,348 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367186226] [2019-11-27 23:09:42,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:09:42,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-27 23:09:42,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584159078] [2019-11-27 23:09:42,350 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-27 23:09:42,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 23:09:42,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-27 23:09:42,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-27 23:09:42,352 INFO L87 Difference]: Start difference. First operand 1428 states and 2029 transitions. Second operand 4 states. [2019-11-27 23:09:43,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:09:43,631 INFO L93 Difference]: Finished difference Result 4636 states and 6632 transitions. [2019-11-27 23:09:43,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-27 23:09:43,631 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 119 [2019-11-27 23:09:43,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:09:43,648 INFO L225 Difference]: With dead ends: 4636 [2019-11-27 23:09:43,649 INFO L226 Difference]: Without dead ends: 3210 [2019-11-27 23:09:43,652 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-27 23:09:43,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3210 states. [2019-11-27 23:09:43,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3210 to 3030. [2019-11-27 23:09:43,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2019-11-27 23:09:43,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3969 transitions. [2019-11-27 23:09:43,715 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3969 transitions. Word has length 119 [2019-11-27 23:09:43,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:09:43,716 INFO L462 AbstractCegarLoop]: Abstraction has 3030 states and 3969 transitions. [2019-11-27 23:09:43,716 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-27 23:09:43,716 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3969 transitions. [2019-11-27 23:09:43,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-11-27 23:09:43,718 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:09:43,718 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:09:43,719 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:09:43,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:09:43,719 INFO L82 PathProgramCache]: Analyzing trace with hash 516842708, now seen corresponding path program 1 times [2019-11-27 23:09:43,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:09:43,720 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929372585] [2019-11-27 23:09:43,720 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:09:43,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:09:43,904 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 44 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:09:43,905 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929372585] [2019-11-27 23:09:43,905 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420000729] [2019-11-27 23:09:43,905 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-27 23:09:43,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:09:43,969 INFO L255 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-27 23:09:43,978 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:09:44,058 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:09:44,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-27 23:09:44,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2019-11-27 23:09:44,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238382477] [2019-11-27 23:09:44,061 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-27 23:09:44,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 23:09:44,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-27 23:09:44,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-11-27 23:09:44,062 INFO L87 Difference]: Start difference. First operand 3030 states and 3969 transitions. Second operand 4 states. [2019-11-27 23:09:45,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:09:45,021 INFO L93 Difference]: Finished difference Result 6116 states and 8025 transitions. [2019-11-27 23:09:45,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-27 23:09:45,021 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 131 [2019-11-27 23:09:45,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:09:45,035 INFO L225 Difference]: With dead ends: 6116 [2019-11-27 23:09:45,035 INFO L226 Difference]: Without dead ends: 3208 [2019-11-27 23:09:45,039 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 130 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-11-27 23:09:45,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2019-11-27 23:09:45,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3030. [2019-11-27 23:09:45,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2019-11-27 23:09:45,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3420 transitions. [2019-11-27 23:09:45,143 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3420 transitions. Word has length 131 [2019-11-27 23:09:45,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:09:45,144 INFO L462 AbstractCegarLoop]: Abstraction has 3030 states and 3420 transitions. [2019-11-27 23:09:45,144 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-27 23:09:45,144 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3420 transitions. [2019-11-27 23:09:45,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2019-11-27 23:09:45,147 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:09:45,148 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:09:45,352 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-27 23:09:45,353 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:09:45,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:09:45,354 INFO L82 PathProgramCache]: Analyzing trace with hash -2140852222, now seen corresponding path program 1 times [2019-11-27 23:09:45,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:09:45,355 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99005938] [2019-11-27 23:09:45,355 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:09:45,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:09:45,500 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2019-11-27 23:09:45,501 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99005938] [2019-11-27 23:09:45,501 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:09:45,501 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-27 23:09:45,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992303479] [2019-11-27 23:09:45,502 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-27 23:09:45,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 23:09:45,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-27 23:09:45,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-27 23:09:45,503 INFO L87 Difference]: Start difference. First operand 3030 states and 3420 transitions. Second operand 4 states. [2019-11-27 23:09:46,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:09:46,501 INFO L93 Difference]: Finished difference Result 7660 states and 8738 transitions. [2019-11-27 23:09:46,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-27 23:09:46,501 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 226 [2019-11-27 23:09:46,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:09:46,521 INFO L225 Difference]: With dead ends: 7660 [2019-11-27 23:09:46,521 INFO L226 Difference]: Without dead ends: 4810 [2019-11-27 23:09:46,525 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-27 23:09:46,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2019-11-27 23:09:46,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 3386. [2019-11-27 23:09:46,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3386 states. [2019-11-27 23:09:46,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3760 transitions. [2019-11-27 23:09:46,596 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3760 transitions. Word has length 226 [2019-11-27 23:09:46,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:09:46,597 INFO L462 AbstractCegarLoop]: Abstraction has 3386 states and 3760 transitions. [2019-11-27 23:09:46,597 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-27 23:09:46,598 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3760 transitions. [2019-11-27 23:09:46,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2019-11-27 23:09:46,609 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:09:46,610 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:09:46,610 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:09:46,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:09:46,611 INFO L82 PathProgramCache]: Analyzing trace with hash 669469216, now seen corresponding path program 1 times [2019-11-27 23:09:46,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:09:46,611 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827806563] [2019-11-27 23:09:46,612 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:09:46,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:09:47,364 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 442 proven. 65 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2019-11-27 23:09:47,364 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827806563] [2019-11-27 23:09:47,364 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391420020] [2019-11-27 23:09:47,365 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-27 23:09:47,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:09:47,484 INFO L255 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-27 23:09:47,494 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:09:47,617 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2019-11-27 23:09:47,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-27 23:09:47,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2019-11-27 23:09:47,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716857412] [2019-11-27 23:09:47,619 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-27 23:09:47,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 23:09:47,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-27 23:09:47,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-27 23:09:47,620 INFO L87 Difference]: Start difference. First operand 3386 states and 3760 transitions. Second operand 3 states. [2019-11-27 23:09:48,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:09:48,320 INFO L93 Difference]: Finished difference Result 7126 states and 7965 transitions. [2019-11-27 23:09:48,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 23:09:48,328 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 434 [2019-11-27 23:09:48,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:09:48,409 INFO L225 Difference]: With dead ends: 7126 [2019-11-27 23:09:48,409 INFO L226 Difference]: Without dead ends: 3920 [2019-11-27 23:09:48,416 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 433 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-27 23:09:48,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2019-11-27 23:09:48,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3742. [2019-11-27 23:09:48,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3742 states. [2019-11-27 23:09:48,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4118 transitions. [2019-11-27 23:09:48,492 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4118 transitions. Word has length 434 [2019-11-27 23:09:48,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:09:48,494 INFO L462 AbstractCegarLoop]: Abstraction has 3742 states and 4118 transitions. [2019-11-27 23:09:48,494 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-27 23:09:48,494 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4118 transitions. [2019-11-27 23:09:48,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2019-11-27 23:09:48,508 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:09:48,508 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:09:48,721 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-27 23:09:48,733 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:09:48,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:09:48,734 INFO L82 PathProgramCache]: Analyzing trace with hash -887839416, now seen corresponding path program 1 times [2019-11-27 23:09:48,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:09:48,735 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112527570] [2019-11-27 23:09:48,736 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:09:48,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:09:49,281 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 448 proven. 65 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2019-11-27 23:09:49,282 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112527570] [2019-11-27 23:09:49,282 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654635373] [2019-11-27 23:09:49,282 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-27 23:09:49,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:09:49,395 INFO L255 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-27 23:09:49,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:09:49,753 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 544 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2019-11-27 23:09:49,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-27 23:09:49,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2019-11-27 23:09:49,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657442196] [2019-11-27 23:09:49,756 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-27 23:09:49,756 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 23:09:49,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-27 23:09:49,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2019-11-27 23:09:49,757 INFO L87 Difference]: Start difference. First operand 3742 states and 4118 transitions. Second operand 7 states. [2019-11-27 23:09:50,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:09:50,677 INFO L93 Difference]: Finished difference Result 7454 states and 8190 transitions. [2019-11-27 23:09:50,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-27 23:09:50,678 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 459 [2019-11-27 23:09:50,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:09:50,693 INFO L225 Difference]: With dead ends: 7454 [2019-11-27 23:09:50,693 INFO L226 Difference]: Without dead ends: 3742 [2019-11-27 23:09:50,698 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 454 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2019-11-27 23:09:50,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2019-11-27 23:09:50,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3564. [2019-11-27 23:09:50,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3564 states. [2019-11-27 23:09:50,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3842 transitions. [2019-11-27 23:09:50,755 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3842 transitions. Word has length 459 [2019-11-27 23:09:50,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:09:50,756 INFO L462 AbstractCegarLoop]: Abstraction has 3564 states and 3842 transitions. [2019-11-27 23:09:50,756 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-27 23:09:50,756 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3842 transitions. [2019-11-27 23:09:50,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 587 [2019-11-27 23:09:50,771 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:09:50,772 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:09:50,978 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-27 23:09:50,979 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:09:50,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:09:50,980 INFO L82 PathProgramCache]: Analyzing trace with hash 529060667, now seen corresponding path program 1 times [2019-11-27 23:09:50,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:09:50,981 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034203599] [2019-11-27 23:09:50,982 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:09:51,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:09:52,321 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 662 proven. 4 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2019-11-27 23:09:52,322 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034203599] [2019-11-27 23:09:52,331 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261308299] [2019-11-27 23:09:52,334 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-27 23:09:52,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:09:52,497 INFO L255 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-27 23:09:52,506 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:09:52,530 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:09:52,880 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 643 proven. 23 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2019-11-27 23:09:52,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-27 23:09:52,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2019-11-27 23:09:52,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818486240] [2019-11-27 23:09:52,882 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-27 23:09:52,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 23:09:52,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-27 23:09:52,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-11-27 23:09:52,884 INFO L87 Difference]: Start difference. First operand 3564 states and 3842 transitions. Second operand 8 states. [2019-11-27 23:09:54,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:09:54,903 INFO L93 Difference]: Finished difference Result 7358 states and 7921 transitions. [2019-11-27 23:09:54,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-27 23:09:54,904 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 586 [2019-11-27 23:09:54,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:09:54,920 INFO L225 Difference]: With dead ends: 7358 [2019-11-27 23:09:54,921 INFO L226 Difference]: Without dead ends: 3974 [2019-11-27 23:09:54,925 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 594 GetRequests, 584 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2019-11-27 23:09:54,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3974 states. [2019-11-27 23:09:54,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3974 to 3564. [2019-11-27 23:09:54,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3564 states. [2019-11-27 23:09:54,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3840 transitions. [2019-11-27 23:09:54,986 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3840 transitions. Word has length 586 [2019-11-27 23:09:54,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:09:54,987 INFO L462 AbstractCegarLoop]: Abstraction has 3564 states and 3840 transitions. [2019-11-27 23:09:54,987 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-27 23:09:54,987 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3840 transitions. [2019-11-27 23:09:55,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 805 [2019-11-27 23:09:55,019 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:09:55,020 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:09:55,224 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-27 23:09:55,224 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:09:55,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:09:55,225 INFO L82 PathProgramCache]: Analyzing trace with hash 627454791, now seen corresponding path program 1 times [2019-11-27 23:09:55,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:09:55,226 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329285432] [2019-11-27 23:09:55,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:09:55,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:09:57,784 INFO L134 CoverageAnalysis]: Checked inductivity of 1955 backedges. 1418 proven. 0 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2019-11-27 23:09:57,785 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329285432] [2019-11-27 23:09:57,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:09:57,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-27 23:09:57,786 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344497955] [2019-11-27 23:09:57,788 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-27 23:09:57,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 23:09:57,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-27 23:09:57,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-11-27 23:09:57,792 INFO L87 Difference]: Start difference. First operand 3564 states and 3840 transitions. Second operand 8 states. [2019-11-27 23:09:59,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:09:59,033 INFO L93 Difference]: Finished difference Result 6954 states and 7505 transitions. [2019-11-27 23:09:59,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-27 23:09:59,034 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 804 [2019-11-27 23:09:59,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:09:59,049 INFO L225 Difference]: With dead ends: 6954 [2019-11-27 23:09:59,049 INFO L226 Difference]: Without dead ends: 3570 [2019-11-27 23:09:59,053 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2019-11-27 23:09:59,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3570 states. [2019-11-27 23:09:59,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3570 to 3564. [2019-11-27 23:09:59,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3564 states. [2019-11-27 23:09:59,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3835 transitions. [2019-11-27 23:09:59,098 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3835 transitions. Word has length 804 [2019-11-27 23:09:59,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:09:59,099 INFO L462 AbstractCegarLoop]: Abstraction has 3564 states and 3835 transitions. [2019-11-27 23:09:59,099 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-27 23:09:59,099 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3835 transitions. [2019-11-27 23:09:59,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 831 [2019-11-27 23:09:59,153 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:09:59,154 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:09:59,154 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:09:59,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:09:59,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1386667544, now seen corresponding path program 1 times [2019-11-27 23:09:59,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:09:59,157 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97240802] [2019-11-27 23:09:59,158 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:09:59,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:10:00,094 INFO L134 CoverageAnalysis]: Checked inductivity of 1981 backedges. 1463 proven. 155 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2019-11-27 23:10:00,094 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97240802] [2019-11-27 23:10:00,095 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61461597] [2019-11-27 23:10:00,095 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-27 23:10:00,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:10:00,299 INFO L255 TraceCheckSpWp]: Trace formula consists of 1007 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-27 23:10:00,308 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:10:00,740 INFO L134 CoverageAnalysis]: Checked inductivity of 1981 backedges. 1463 proven. 155 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2019-11-27 23:10:00,740 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-27 23:10:00,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 5 [2019-11-27 23:10:00,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309852726] [2019-11-27 23:10:00,742 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-27 23:10:00,742 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 23:10:00,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-27 23:10:00,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-27 23:10:00,742 INFO L87 Difference]: Start difference. First operand 3564 states and 3835 transitions. Second operand 5 states. [2019-11-27 23:10:02,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:10:02,017 INFO L93 Difference]: Finished difference Result 8372 states and 9101 transitions. [2019-11-27 23:10:02,018 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-27 23:10:02,018 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 830 [2019-11-27 23:10:02,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:10:02,036 INFO L225 Difference]: With dead ends: 8372 [2019-11-27 23:10:02,036 INFO L226 Difference]: Without dead ends: 4988 [2019-11-27 23:10:02,041 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 835 GetRequests, 832 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-27 23:10:02,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2019-11-27 23:10:02,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4632. [2019-11-27 23:10:02,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4632 states. [2019-11-27 23:10:02,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4984 transitions. [2019-11-27 23:10:02,109 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4984 transitions. Word has length 830 [2019-11-27 23:10:02,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:10:02,110 INFO L462 AbstractCegarLoop]: Abstraction has 4632 states and 4984 transitions. [2019-11-27 23:10:02,110 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-27 23:10:02,110 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4984 transitions. [2019-11-27 23:10:02,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 882 [2019-11-27 23:10:02,122 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:10:02,123 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:10:02,326 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-27 23:10:02,327 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:10:02,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:10:02,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1338545778, now seen corresponding path program 1 times [2019-11-27 23:10:02,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:10:02,328 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851223739] [2019-11-27 23:10:02,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:10:02,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:10:03,596 INFO L134 CoverageAnalysis]: Checked inductivity of 2465 backedges. 1267 proven. 205 refuted. 0 times theorem prover too weak. 993 trivial. 0 not checked. [2019-11-27 23:10:03,597 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851223739] [2019-11-27 23:10:03,597 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185285379] [2019-11-27 23:10:03,597 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-27 23:10:03,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:10:03,794 INFO L255 TraceCheckSpWp]: Trace formula consists of 1078 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-27 23:10:03,807 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:10:04,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2465 backedges. 1851 proven. 0 refuted. 0 times theorem prover too weak. 614 trivial. 0 not checked. [2019-11-27 23:10:04,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-27 23:10:04,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2019-11-27 23:10:04,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502847854] [2019-11-27 23:10:04,833 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-27 23:10:04,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 23:10:04,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-27 23:10:04,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-27 23:10:04,836 INFO L87 Difference]: Start difference. First operand 4632 states and 4984 transitions. Second operand 3 states. [2019-11-27 23:10:05,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:10:05,386 INFO L93 Difference]: Finished difference Result 9438 states and 10182 transitions. [2019-11-27 23:10:05,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 23:10:05,386 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 881 [2019-11-27 23:10:05,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:10:05,387 INFO L225 Difference]: With dead ends: 9438 [2019-11-27 23:10:05,387 INFO L226 Difference]: Without dead ends: 0 [2019-11-27 23:10:05,395 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 886 GetRequests, 880 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-27 23:10:05,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-27 23:10:05,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-27 23:10:05,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-27 23:10:05,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-27 23:10:05,397 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 881 [2019-11-27 23:10:05,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:10:05,397 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-27 23:10:05,397 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-27 23:10:05,397 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-27 23:10:05,398 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-27 23:10:05,601 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-27 23:10:05,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-27 23:10:05,801 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 83 [2019-11-27 23:10:05,962 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 33 [2019-11-27 23:10:06,132 WARN L192 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 33 [2019-11-27 23:10:06,141 INFO L246 CegarLoopResult]: For program point L432(lines 432 870) no Hoare annotation was computed. [2019-11-27 23:10:06,142 INFO L246 CegarLoopResult]: For program point L366(lines 366 870) no Hoare annotation was computed. [2019-11-27 23:10:06,142 INFO L246 CegarLoopResult]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,142 INFO L246 CegarLoopResult]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,142 INFO L246 CegarLoopResult]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,142 INFO L246 CegarLoopResult]: For program point L235(lines 235 870) no Hoare annotation was computed. [2019-11-27 23:10:06,143 INFO L246 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2019-11-27 23:10:06,143 INFO L246 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2019-11-27 23:10:06,143 INFO L246 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2019-11-27 23:10:06,143 INFO L246 CegarLoopResult]: For program point L764(lines 764 870) no Hoare annotation was computed. [2019-11-27 23:10:06,143 INFO L246 CegarLoopResult]: For program point L632(lines 632 870) no Hoare annotation was computed. [2019-11-27 23:10:06,143 INFO L246 CegarLoopResult]: For program point L500(lines 500 870) no Hoare annotation was computed. [2019-11-27 23:10:06,144 INFO L246 CegarLoopResult]: For program point L831(lines 831 870) no Hoare annotation was computed. [2019-11-27 23:10:06,144 INFO L246 CegarLoopResult]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,144 INFO L246 CegarLoopResult]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,144 INFO L246 CegarLoopResult]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,145 INFO L246 CegarLoopResult]: For program point L700(lines 700 870) no Hoare annotation was computed. [2019-11-27 23:10:06,145 INFO L246 CegarLoopResult]: For program point L568(lines 568 870) no Hoare annotation was computed. [2019-11-27 23:10:06,145 INFO L246 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2019-11-27 23:10:06,145 INFO L246 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2019-11-27 23:10:06,145 INFO L246 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2019-11-27 23:10:06,145 INFO L246 CegarLoopResult]: For program point L305(lines 305 870) no Hoare annotation was computed. [2019-11-27 23:10:06,145 INFO L246 CegarLoopResult]: For program point L438(lines 438 870) no Hoare annotation was computed. [2019-11-27 23:10:06,146 INFO L246 CegarLoopResult]: For program point L372(lines 372 870) no Hoare annotation was computed. [2019-11-27 23:10:06,146 INFO L246 CegarLoopResult]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,146 INFO L246 CegarLoopResult]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,146 INFO L246 CegarLoopResult]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,146 INFO L246 CegarLoopResult]: For program point L241(lines 241 870) no Hoare annotation was computed. [2019-11-27 23:10:06,146 INFO L246 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2019-11-27 23:10:06,147 INFO L246 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2019-11-27 23:10:06,148 INFO L246 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2019-11-27 23:10:06,148 INFO L246 CegarLoopResult]: For program point L638(lines 638 870) no Hoare annotation was computed. [2019-11-27 23:10:06,149 INFO L246 CegarLoopResult]: For program point L506(lines 506 870) no Hoare annotation was computed. [2019-11-27 23:10:06,149 INFO L246 CegarLoopResult]: For program point L837(lines 837 870) no Hoare annotation was computed. [2019-11-27 23:10:06,149 INFO L246 CegarLoopResult]: For program point L771(lines 771 870) no Hoare annotation was computed. [2019-11-27 23:10:06,150 INFO L246 CegarLoopResult]: For program point L573(lines 573 870) no Hoare annotation was computed. [2019-11-27 23:10:06,150 INFO L246 CegarLoopResult]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,150 INFO L246 CegarLoopResult]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,151 INFO L246 CegarLoopResult]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,151 INFO L246 CegarLoopResult]: For program point L706(lines 706 870) no Hoare annotation was computed. [2019-11-27 23:10:06,151 INFO L246 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2019-11-27 23:10:06,151 INFO L246 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2019-11-27 23:10:06,152 INFO L246 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2019-11-27 23:10:06,154 INFO L246 CegarLoopResult]: For program point L311(lines 311 870) no Hoare annotation was computed. [2019-11-27 23:10:06,154 INFO L246 CegarLoopResult]: For program point L444(lines 444 870) no Hoare annotation was computed. [2019-11-27 23:10:06,154 INFO L246 CegarLoopResult]: For program point L378(lines 378 870) no Hoare annotation was computed. [2019-11-27 23:10:06,155 INFO L246 CegarLoopResult]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,155 INFO L246 CegarLoopResult]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,156 INFO L246 CegarLoopResult]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,156 INFO L246 CegarLoopResult]: For program point L247(lines 247 870) no Hoare annotation was computed. [2019-11-27 23:10:06,156 INFO L246 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2019-11-27 23:10:06,157 INFO L246 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2019-11-27 23:10:06,157 INFO L246 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2019-11-27 23:10:06,157 INFO L246 CegarLoopResult]: For program point L842(lines 842 870) no Hoare annotation was computed. [2019-11-27 23:10:06,157 INFO L246 CegarLoopResult]: For program point L644(lines 644 870) no Hoare annotation was computed. [2019-11-27 23:10:06,158 INFO L246 CegarLoopResult]: For program point L512(lines 512 870) no Hoare annotation was computed. [2019-11-27 23:10:06,158 INFO L246 CegarLoopResult]: For program point L777(lines 777 870) no Hoare annotation was computed. [2019-11-27 23:10:06,158 INFO L246 CegarLoopResult]: For program point L579(lines 579 870) no Hoare annotation was computed. [2019-11-27 23:10:06,158 INFO L246 CegarLoopResult]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,158 INFO L246 CegarLoopResult]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,159 INFO L246 CegarLoopResult]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,159 INFO L246 CegarLoopResult]: For program point L712(lines 712 870) no Hoare annotation was computed. [2019-11-27 23:10:06,159 INFO L246 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2019-11-27 23:10:06,159 INFO L246 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2019-11-27 23:10:06,160 INFO L246 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2019-11-27 23:10:06,160 INFO L246 CegarLoopResult]: For program point L449(lines 449 870) no Hoare annotation was computed. [2019-11-27 23:10:06,160 INFO L246 CegarLoopResult]: For program point L317(lines 317 870) no Hoare annotation was computed. [2019-11-27 23:10:06,160 INFO L246 CegarLoopResult]: For program point L384(lines 384 870) no Hoare annotation was computed. [2019-11-27 23:10:06,161 INFO L246 CegarLoopResult]: For program point L252(lines 252 870) no Hoare annotation was computed. [2019-11-27 23:10:06,161 INFO L246 CegarLoopResult]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,161 INFO L246 CegarLoopResult]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,161 INFO L246 CegarLoopResult]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,162 INFO L246 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2019-11-27 23:10:06,162 INFO L246 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2019-11-27 23:10:06,162 INFO L246 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2019-11-27 23:10:06,162 INFO L246 CegarLoopResult]: For program point L848(lines 848 870) no Hoare annotation was computed. [2019-11-27 23:10:06,163 INFO L246 CegarLoopResult]: For program point L650(lines 650 870) no Hoare annotation was computed. [2019-11-27 23:10:06,163 INFO L246 CegarLoopResult]: For program point L518(lines 518 870) no Hoare annotation was computed. [2019-11-27 23:10:06,164 INFO L246 CegarLoopResult]: For program point L783(lines 783 870) no Hoare annotation was computed. [2019-11-27 23:10:06,164 INFO L246 CegarLoopResult]: For program point L585(lines 585 870) no Hoare annotation was computed. [2019-11-27 23:10:06,164 INFO L246 CegarLoopResult]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,164 INFO L246 CegarLoopResult]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,164 INFO L246 CegarLoopResult]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,165 INFO L246 CegarLoopResult]: For program point L718(lines 718 870) no Hoare annotation was computed. [2019-11-27 23:10:06,166 INFO L246 CegarLoopResult]: For program point L454(lines 454 870) no Hoare annotation was computed. [2019-11-27 23:10:06,166 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-27 23:10:06,166 INFO L246 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2019-11-27 23:10:06,166 INFO L246 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2019-11-27 23:10:06,166 INFO L246 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2019-11-27 23:10:06,167 INFO L246 CegarLoopResult]: For program point L323(lines 323 870) no Hoare annotation was computed. [2019-11-27 23:10:06,167 INFO L246 CegarLoopResult]: For program point L390(lines 390 870) no Hoare annotation was computed. [2019-11-27 23:10:06,167 INFO L246 CegarLoopResult]: For program point L258(lines 258 870) no Hoare annotation was computed. [2019-11-27 23:10:06,167 INFO L246 CegarLoopResult]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,167 INFO L246 CegarLoopResult]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,167 INFO L246 CegarLoopResult]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,168 INFO L246 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2019-11-27 23:10:06,168 INFO L246 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2019-11-27 23:10:06,168 INFO L246 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2019-11-27 23:10:06,168 INFO L246 CegarLoopResult]: For program point L854(lines 854 870) no Hoare annotation was computed. [2019-11-27 23:10:06,168 INFO L246 CegarLoopResult]: For program point L656(lines 656 870) no Hoare annotation was computed. [2019-11-27 23:10:06,168 INFO L246 CegarLoopResult]: For program point L524(lines 524 870) no Hoare annotation was computed. [2019-11-27 23:10:06,169 INFO L246 CegarLoopResult]: For program point L789(lines 789 870) no Hoare annotation was computed. [2019-11-27 23:10:06,169 INFO L246 CegarLoopResult]: For program point L591(lines 591 870) no Hoare annotation was computed. [2019-11-27 23:10:06,169 INFO L246 CegarLoopResult]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,169 INFO L246 CegarLoopResult]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,169 INFO L246 CegarLoopResult]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,169 INFO L246 CegarLoopResult]: For program point L724(lines 724 870) no Hoare annotation was computed. [2019-11-27 23:10:06,170 INFO L246 CegarLoopResult]: For program point L460(lines 460 870) no Hoare annotation was computed. [2019-11-27 23:10:06,170 INFO L246 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2019-11-27 23:10:06,170 INFO L246 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2019-11-27 23:10:06,171 INFO L246 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2019-11-27 23:10:06,171 INFO L246 CegarLoopResult]: For program point L329(lines 329 870) no Hoare annotation was computed. [2019-11-27 23:10:06,171 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-27 23:10:06,171 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 157) no Hoare annotation was computed. [2019-11-27 23:10:06,171 INFO L246 CegarLoopResult]: For program point L396(lines 396 870) no Hoare annotation was computed. [2019-11-27 23:10:06,172 INFO L246 CegarLoopResult]: For program point L264(lines 264 870) no Hoare annotation was computed. [2019-11-27 23:10:06,172 INFO L246 CegarLoopResult]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,172 INFO L246 CegarLoopResult]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,172 INFO L246 CegarLoopResult]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,172 INFO L246 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2019-11-27 23:10:06,172 INFO L246 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2019-11-27 23:10:06,173 INFO L246 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2019-11-27 23:10:06,173 INFO L246 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2019-11-27 23:10:06,173 INFO L246 CegarLoopResult]: For program point L662(lines 662 870) no Hoare annotation was computed. [2019-11-27 23:10:06,173 INFO L246 CegarLoopResult]: For program point L530(lines 530 870) no Hoare annotation was computed. [2019-11-27 23:10:06,173 INFO L246 CegarLoopResult]: For program point L795(lines 795 870) no Hoare annotation was computed. [2019-11-27 23:10:06,173 INFO L246 CegarLoopResult]: For program point L597(lines 597 870) no Hoare annotation was computed. [2019-11-27 23:10:06,173 INFO L246 CegarLoopResult]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,174 INFO L246 CegarLoopResult]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,174 INFO L246 CegarLoopResult]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,174 INFO L246 CegarLoopResult]: For program point L730(lines 730 870) no Hoare annotation was computed. [2019-11-27 23:10:06,174 INFO L246 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2019-11-27 23:10:06,174 INFO L246 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2019-11-27 23:10:06,174 INFO L246 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2019-11-27 23:10:06,175 INFO L246 CegarLoopResult]: For program point L467(lines 467 870) no Hoare annotation was computed. [2019-11-27 23:10:06,175 INFO L246 CegarLoopResult]: For program point L335(lines 335 870) no Hoare annotation was computed. [2019-11-27 23:10:06,175 INFO L246 CegarLoopResult]: For program point L269(lines 269 870) no Hoare annotation was computed. [2019-11-27 23:10:06,175 INFO L246 CegarLoopResult]: For program point L402(lines 402 870) no Hoare annotation was computed. [2019-11-27 23:10:06,175 INFO L246 CegarLoopResult]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,175 INFO L246 CegarLoopResult]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,176 INFO L246 CegarLoopResult]: For program point L865(lines 865 870) no Hoare annotation was computed. [2019-11-27 23:10:06,176 INFO L246 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2019-11-27 23:10:06,176 INFO L246 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2019-11-27 23:10:06,176 INFO L246 CegarLoopResult]: For program point L668(lines 668 870) no Hoare annotation was computed. [2019-11-27 23:10:06,176 INFO L246 CegarLoopResult]: For program point L536(lines 536 870) no Hoare annotation was computed. [2019-11-27 23:10:06,177 INFO L246 CegarLoopResult]: For program point L801(lines 801 870) no Hoare annotation was computed. [2019-11-27 23:10:06,177 INFO L246 CegarLoopResult]: For program point L735(lines 735 870) no Hoare annotation was computed. [2019-11-27 23:10:06,177 INFO L246 CegarLoopResult]: For program point L603(lines 603 870) no Hoare annotation was computed. [2019-11-27 23:10:06,177 INFO L246 CegarLoopResult]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,177 INFO L246 CegarLoopResult]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,177 INFO L246 CegarLoopResult]: For program point L472(lines 472 870) no Hoare annotation was computed. [2019-11-27 23:10:06,177 INFO L246 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2019-11-27 23:10:06,178 INFO L246 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2019-11-27 23:10:06,178 INFO L246 CegarLoopResult]: For program point L341(lines 341 870) no Hoare annotation was computed. [2019-11-27 23:10:06,178 INFO L246 CegarLoopResult]: For program point L275(lines 275 870) no Hoare annotation was computed. [2019-11-27 23:10:06,178 INFO L246 CegarLoopResult]: For program point L408(lines 408 870) no Hoare annotation was computed. [2019-11-27 23:10:06,178 INFO L246 CegarLoopResult]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,178 INFO L246 CegarLoopResult]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,179 INFO L242 CegarLoopResult]: At program point L871(lines 20 872) the Hoare annotation is: (let ((.cse1 (<= (+ ~a12~0 49) 0)) (.cse2 (not (= ~a21~0 10))) (.cse3 (not (= ~a21~0 9))) (.cse0 (= ~a24~0 1))) (or (and .cse0 .cse1 .cse2) (and (= ~a21~0 6) .cse1) (and .cse3 .cse0 .cse2) (and (not (= ~a15~0 5)) .cse0) (and .cse3 .cse0 (< 0 (+ ~a12~0 43))) (and (< 11 ~a12~0) .cse0))) [2019-11-27 23:10:06,179 INFO L246 CegarLoopResult]: For program point L541(lines 541 870) no Hoare annotation was computed. [2019-11-27 23:10:06,179 INFO L246 CegarLoopResult]: For program point L211(lines 211 870) no Hoare annotation was computed. [2019-11-27 23:10:06,179 INFO L246 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2019-11-27 23:10:06,180 INFO L246 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2019-11-27 23:10:06,180 INFO L246 CegarLoopResult]: For program point L674(lines 674 870) no Hoare annotation was computed. [2019-11-27 23:10:06,180 INFO L246 CegarLoopResult]: For program point L807(lines 807 870) no Hoare annotation was computed. [2019-11-27 23:10:06,180 INFO L246 CegarLoopResult]: For program point L741(lines 741 870) no Hoare annotation was computed. [2019-11-27 23:10:06,180 INFO L246 CegarLoopResult]: For program point L609(lines 609 870) no Hoare annotation was computed. [2019-11-27 23:10:06,180 INFO L246 CegarLoopResult]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,181 INFO L246 CegarLoopResult]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,181 INFO L249 CegarLoopResult]: At program point L874(lines 874 890) the Hoare annotation is: true [2019-11-27 23:10:06,181 INFO L246 CegarLoopResult]: For program point L478(lines 478 870) no Hoare annotation was computed. [2019-11-27 23:10:06,181 INFO L246 CegarLoopResult]: For program point L280(lines 280 870) no Hoare annotation was computed. [2019-11-27 23:10:06,181 INFO L246 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2019-11-27 23:10:06,181 INFO L246 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2019-11-27 23:10:06,182 INFO L246 CegarLoopResult]: For program point L677(lines 677 870) no Hoare annotation was computed. [2019-11-27 23:10:06,182 INFO L246 CegarLoopResult]: For program point L347(lines 347 870) no Hoare annotation was computed. [2019-11-27 23:10:06,182 INFO L246 CegarLoopResult]: For program point L414(lines 414 870) no Hoare annotation was computed. [2019-11-27 23:10:06,182 INFO L246 CegarLoopResult]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,183 INFO L246 CegarLoopResult]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,183 INFO L246 CegarLoopResult]: For program point L547(lines 547 870) no Hoare annotation was computed. [2019-11-27 23:10:06,183 INFO L246 CegarLoopResult]: For program point L217(lines 217 870) no Hoare annotation was computed. [2019-11-27 23:10:06,183 INFO L246 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2019-11-27 23:10:06,184 INFO L246 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2019-11-27 23:10:06,184 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-27 23:10:06,184 INFO L246 CegarLoopResult]: For program point L747(lines 747 870) no Hoare annotation was computed. [2019-11-27 23:10:06,184 INFO L246 CegarLoopResult]: For program point L615(lines 615 870) no Hoare annotation was computed. [2019-11-27 23:10:06,185 INFO L246 CegarLoopResult]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,185 INFO L246 CegarLoopResult]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,185 INFO L246 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2019-11-27 23:10:06,185 INFO L246 CegarLoopResult]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,186 INFO L246 CegarLoopResult]: For program point L814(lines 814 870) no Hoare annotation was computed. [2019-11-27 23:10:06,188 INFO L242 CegarLoopResult]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse1 (<= (+ ~a12~0 49) 0)) (.cse2 (not (= ~a21~0 10))) (.cse3 (not (= ~a21~0 9))) (.cse0 (= ~a24~0 1))) (or (and .cse0 .cse1 .cse2) (and (= ~a21~0 6) .cse1) (and .cse3 .cse0 .cse2) (and (not (= ~a15~0 5)) .cse0) (and .cse3 .cse0 (< 0 (+ ~a12~0 43))) (and (< 11 ~a12~0) .cse0))) [2019-11-27 23:10:06,188 INFO L246 CegarLoopResult]: For program point L484(lines 484 870) no Hoare annotation was computed. [2019-11-27 23:10:06,188 INFO L246 CegarLoopResult]: For program point L286(lines 286 870) no Hoare annotation was computed. [2019-11-27 23:10:06,188 INFO L246 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2019-11-27 23:10:06,189 INFO L246 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2019-11-27 23:10:06,189 INFO L246 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2019-11-27 23:10:06,189 INFO L246 CegarLoopResult]: For program point L683(lines 683 870) no Hoare annotation was computed. [2019-11-27 23:10:06,190 INFO L246 CegarLoopResult]: For program point L353(lines 353 870) no Hoare annotation was computed. [2019-11-27 23:10:06,190 INFO L246 CegarLoopResult]: For program point L552(lines 552 870) no Hoare annotation was computed. [2019-11-27 23:10:06,190 INFO L246 CegarLoopResult]: For program point L420(lines 420 870) no Hoare annotation was computed. [2019-11-27 23:10:06,190 INFO L246 CegarLoopResult]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,191 INFO L246 CegarLoopResult]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,191 INFO L246 CegarLoopResult]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,191 INFO L246 CegarLoopResult]: For program point L223(lines 223 870) no Hoare annotation was computed. [2019-11-27 23:10:06,191 INFO L246 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2019-11-27 23:10:06,191 INFO L246 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2019-11-27 23:10:06,192 INFO L246 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2019-11-27 23:10:06,192 INFO L246 CegarLoopResult]: For program point L752(lines 752 870) no Hoare annotation was computed. [2019-11-27 23:10:06,192 INFO L246 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2019-11-27 23:10:06,193 INFO L246 CegarLoopResult]: For program point L819(lines 819 870) no Hoare annotation was computed. [2019-11-27 23:10:06,193 INFO L246 CegarLoopResult]: For program point L621(lines 621 870) no Hoare annotation was computed. [2019-11-27 23:10:06,193 INFO L246 CegarLoopResult]: For program point L555(lines 555 870) no Hoare annotation was computed. [2019-11-27 23:10:06,193 INFO L246 CegarLoopResult]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,193 INFO L246 CegarLoopResult]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,194 INFO L246 CegarLoopResult]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,194 INFO L246 CegarLoopResult]: For program point L688(lines 688 870) no Hoare annotation was computed. [2019-11-27 23:10:06,194 INFO L246 CegarLoopResult]: For program point L490(lines 490 870) no Hoare annotation was computed. [2019-11-27 23:10:06,194 INFO L246 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2019-11-27 23:10:06,195 INFO L246 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2019-11-27 23:10:06,195 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-27 23:10:06,195 INFO L246 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2019-11-27 23:10:06,195 INFO L246 CegarLoopResult]: For program point L359(lines 359 870) no Hoare annotation was computed. [2019-11-27 23:10:06,196 INFO L246 CegarLoopResult]: For program point L293(lines 293 870) no Hoare annotation was computed. [2019-11-27 23:10:06,196 INFO L246 CegarLoopResult]: For program point L426(lines 426 870) no Hoare annotation was computed. [2019-11-27 23:10:06,196 INFO L246 CegarLoopResult]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,196 INFO L246 CegarLoopResult]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,197 INFO L246 CegarLoopResult]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,197 INFO L246 CegarLoopResult]: For program point L229(lines 229 870) no Hoare annotation was computed. [2019-11-27 23:10:06,197 INFO L246 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2019-11-27 23:10:06,197 INFO L246 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2019-11-27 23:10:06,198 INFO L246 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2019-11-27 23:10:06,198 INFO L246 CegarLoopResult]: For program point L758(lines 758 870) no Hoare annotation was computed. [2019-11-27 23:10:06,198 INFO L246 CegarLoopResult]: For program point L626(lines 626 870) no Hoare annotation was computed. [2019-11-27 23:10:06,198 INFO L246 CegarLoopResult]: For program point L825(lines 825 870) no Hoare annotation was computed. [2019-11-27 23:10:06,199 INFO L246 CegarLoopResult]: For program point L561(lines 561 870) no Hoare annotation was computed. [2019-11-27 23:10:06,199 INFO L246 CegarLoopResult]: For program point L495(lines 495 870) no Hoare annotation was computed. [2019-11-27 23:10:06,199 INFO L246 CegarLoopResult]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,199 INFO L246 CegarLoopResult]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,200 INFO L246 CegarLoopResult]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2019-11-27 23:10:06,200 INFO L246 CegarLoopResult]: For program point L694(lines 694 870) no Hoare annotation was computed. [2019-11-27 23:10:06,200 INFO L246 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2019-11-27 23:10:06,200 INFO L246 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2019-11-27 23:10:06,201 INFO L246 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2019-11-27 23:10:06,201 INFO L246 CegarLoopResult]: For program point L299(lines 299 870) no Hoare annotation was computed. [2019-11-27 23:10:06,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:10:06 BoogieIcfgContainer [2019-11-27 23:10:06,255 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:10:06,256 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:10:06,256 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:10:06,257 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:10:06,258 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:09:38" (3/4) ... [2019-11-27 23:10:06,264 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-27 23:10:06,307 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-27 23:10:06,310 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-27 23:10:06,572 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-27 23:10:06,572 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:10:06,574 INFO L168 Benchmark]: Toolchain (without parser) took 31178.47 ms. Allocated memory was 1.0 GB in the beginning and 2.5 GB in the end (delta: 1.5 GB). Free memory was 956.3 MB in the beginning and 1.6 GB in the end (delta: -633.1 MB). Peak memory consumption was 886.8 MB. Max. memory is 11.5 GB. [2019-11-27 23:10:06,574 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:10:06,575 INFO L168 Benchmark]: CACSL2BoogieTranslator took 919.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -144.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-11-27 23:10:06,575 INFO L168 Benchmark]: Boogie Procedure Inliner took 171.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-27 23:10:06,576 INFO L168 Benchmark]: Boogie Preprocessor took 126.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-27 23:10:06,576 INFO L168 Benchmark]: RCFGBuilder took 1416.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 956.1 MB in the end (delta: 131.3 MB). Peak memory consumption was 131.3 MB. Max. memory is 11.5 GB. [2019-11-27 23:10:06,577 INFO L168 Benchmark]: TraceAbstraction took 28221.74 ms. Allocated memory was 1.2 GB in the beginning and 2.5 GB in the end (delta: 1.4 GB). Free memory was 956.1 MB in the beginning and 1.6 GB in the end (delta: -666.6 MB). Peak memory consumption was 713.8 MB. Max. memory is 11.5 GB. [2019-11-27 23:10:06,578 INFO L168 Benchmark]: Witness Printer took 315.96 ms. Allocated memory is still 2.5 GB. Free memory was 1.6 GB in the beginning and 1.6 GB in the end (delta: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. [2019-11-27 23:10:06,580 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 919.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -144.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 171.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 126.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1416.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 956.1 MB in the end (delta: 131.3 MB). Peak memory consumption was 131.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 28221.74 ms. Allocated memory was 1.2 GB in the beginning and 2.5 GB in the end (delta: 1.4 GB). Free memory was 956.1 MB in the beginning and 1.6 GB in the end (delta: -666.6 MB). Peak memory consumption was 713.8 MB. Max. memory is 11.5 GB. * Witness Printer took 315.96 ms. Allocated memory is still 2.5 GB. Free memory was 1.6 GB in the beginning and 1.6 GB in the end (delta: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 157]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: ((((((a24 == 1 && a12 + 49 <= 0) && !(a21 == 10)) || (a21 == 6 && a12 + 49 <= 0)) || ((!(a21 == 9) && a24 == 1) && !(a21 == 10))) || (!(a15 == 5) && a24 == 1)) || ((!(a21 == 9) && a24 == 1) && 0 < a12 + 43)) || (11 < a12 && a24 == 1) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: ((((((a24 == 1 && a12 + 49 <= 0) && !(a21 == 10)) || (a21 == 6 && a12 + 49 <= 0)) || ((!(a21 == 9) && a24 == 1) && !(a21 == 10))) || (!(a15 == 5) && a24 == 1)) || ((!(a21 == 9) && a24 == 1) && 0 < a12 + 43)) || (11 < a12 && a24 == 1) - InvariantResult [Line: 874]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Result: SAFE, OverallTime: 27.5s, OverallIterations: 11, TraceHistogramMax: 8, AutomataDifference: 13.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, HoareTripleCheckerStatistics: 843 SDtfs, 3195 SDslu, 144 SDs, 0 SdLazy, 9969 SolverSat, 1172 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3377 GetRequests, 3319 SyntacticMatches, 4 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4632occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 11 MinimizatonAttempts, 3088 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 72 NumberOfFragments, 127 HoareAnnotationTreeSize, 3 FomulaSimplifications, 4336 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1056 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 7958 NumberOfCodeBlocks, 7958 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 7941 ConstructedInterpolants, 0 QuantifiedInterpolants, 19488721 SizeOfPredicates, 13 NumberOfNonLiveVariables, 4134 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 17 InterpolantComputations, 9 PerfectInterpolantSequences, 15154/15830 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...