./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 f470102c 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 0.1.25-f470102 [2019-11-28 16:14:03,962 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 16:14:03,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 16:14:03,981 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 16:14:03,981 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 16:14:03,983 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 16:14:03,985 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 16:14:03,999 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 16:14:04,001 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 16:14:04,002 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 16:14:04,003 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 16:14:04,005 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 16:14:04,005 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 16:14:04,006 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 16:14:04,007 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 16:14:04,009 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 16:14:04,010 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 16:14:04,011 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 16:14:04,012 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 16:14:04,015 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 16:14:04,017 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 16:14:04,018 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 16:14:04,024 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 16:14:04,025 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 16:14:04,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 16:14:04,030 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 16:14:04,031 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 16:14:04,032 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 16:14:04,033 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 16:14:04,034 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 16:14:04,035 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 16:14:04,036 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 16:14:04,036 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 16:14:04,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 16:14:04,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 16:14:04,039 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 16:14:04,040 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 16:14:04,040 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 16:14:04,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 16:14:04,041 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 16:14:04,042 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 16:14:04,043 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 16:14:04,067 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 16:14:04,067 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 16:14:04,068 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 16:14:04,069 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 16:14:04,069 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 16:14:04,069 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 16:14:04,069 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 16:14:04,071 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 16:14:04,071 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 16:14:04,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 16:14:04,072 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 16:14:04,073 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 16:14:04,073 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 16:14:04,073 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 16:14:04,074 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 16:14:04,074 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 16:14:04,074 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 16:14:04,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 16:14:04,075 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 16:14:04,075 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 16:14:04,076 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 16:14:04,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 16:14:04,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 16:14:04,077 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 16:14:04,077 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 16:14:04,077 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 16:14:04,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 16:14:04,078 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 16:14:04,078 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 16:14:04,078 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 [2019-11-28 16:14:04,378 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 16:14:04,395 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 16:14:04,399 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 16:14:04,401 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 16:14:04,402 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 16:14:04,403 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label03.c [2019-11-28 16:14:04,472 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/755d7b191/efaa74d2fdf14631bf52cbc5f967660f/FLAG8ba57b959 [2019-11-28 16:14:05,072 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 16:14:05,073 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label03.c [2019-11-28 16:14:05,093 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/755d7b191/efaa74d2fdf14631bf52cbc5f967660f/FLAG8ba57b959 [2019-11-28 16:14:05,300 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/755d7b191/efaa74d2fdf14631bf52cbc5f967660f [2019-11-28 16:14:05,303 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 16:14:05,305 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 16:14:05,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 16:14:05,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 16:14:05,312 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 16:14:05,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:14:05" (1/1) ... [2019-11-28 16:14:05,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27b198c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:14:05, skipping insertion in model container [2019-11-28 16:14:05,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:14:05" (1/1) ... [2019-11-28 16:14:05,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 16:14:05,385 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 16:14:06,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:14:06,007 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 16:14:06,215 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:14:06,232 INFO L208 MainTranslator]: Completed translation [2019-11-28 16:14:06,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:14:06 WrapperNode [2019-11-28 16:14:06,233 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 16:14:06,234 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 16:14:06,234 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 16:14:06,234 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 16:14:06,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:14:06" (1/1) ... [2019-11-28 16:14:06,267 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:14:06" (1/1) ... [2019-11-28 16:14:06,382 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 16:14:06,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 16:14:06,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 16:14:06,383 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 16:14:06,395 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:14:06" (1/1) ... [2019-11-28 16:14:06,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:14:06" (1/1) ... [2019-11-28 16:14:06,405 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:14:06" (1/1) ... [2019-11-28 16:14:06,405 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:14:06" (1/1) ... [2019-11-28 16:14:06,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:14:06" (1/1) ... [2019-11-28 16:14:06,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:14:06" (1/1) ... [2019-11-28 16:14:06,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:14:06" (1/1) ... [2019-11-28 16:14:06,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 16:14:06,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 16:14:06,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 16:14:06,491 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 16:14:06,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:14:06" (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 [2019-11-28 16:14:06,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 16:14:06,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 16:14:08,028 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 16:14:08,028 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-28 16:14:08,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:14:08 BoogieIcfgContainer [2019-11-28 16:14:08,031 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 16:14:08,032 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 16:14:08,032 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 16:14:08,036 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 16:14:08,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:14:05" (1/3) ... [2019-11-28 16:14:08,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c010b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:14:08, skipping insertion in model container [2019-11-28 16:14:08,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:14:06" (2/3) ... [2019-11-28 16:14:08,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c010b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:14:08, skipping insertion in model container [2019-11-28 16:14:08,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:14:08" (3/3) ... [2019-11-28 16:14:08,040 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label03.c [2019-11-28 16:14:08,051 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 16:14:08,059 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 16:14:08,073 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 16:14:08,105 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 16:14:08,106 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 16:14:08,106 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 16:14:08,106 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 16:14:08,106 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 16:14:08,107 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 16:14:08,108 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 16:14:08,108 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 16:14:08,132 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states. [2019-11-28 16:14:08,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-11-28 16:14:08,142 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:14:08,144 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] [2019-11-28 16:14:08,144 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:14:08,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:14:08,151 INFO L82 PathProgramCache]: Analyzing trace with hash 2122806209, now seen corresponding path program 1 times [2019-11-28 16:14:08,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 16:14:08,163 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243108330] [2019-11-28 16:14:08,164 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 16:14:08,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:14:08,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:14:08,467 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243108330] [2019-11-28 16:14:08,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:14:08,468 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 16:14:08,470 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123270472] [2019-11-28 16:14:08,476 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 16:14:08,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 16:14:08,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 16:14:08,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 16:14:08,496 INFO L87 Difference]: Start difference. First operand 245 states. Second operand 4 states. [2019-11-28 16:14:10,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:14:10,382 INFO L93 Difference]: Finished difference Result 850 states and 1558 transitions. [2019-11-28 16:14:10,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 16:14:10,384 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2019-11-28 16:14:10,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:14:10,405 INFO L225 Difference]: With dead ends: 850 [2019-11-28 16:14:10,405 INFO L226 Difference]: Without dead ends: 538 [2019-11-28 16:14:10,411 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 [2019-11-28 16:14:10,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-11-28 16:14:10,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-11-28 16:14:10,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-11-28 16:14:10,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 826 transitions. [2019-11-28 16:14:10,498 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 826 transitions. Word has length 51 [2019-11-28 16:14:10,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:14:10,499 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 826 transitions. [2019-11-28 16:14:10,499 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 16:14:10,499 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 826 transitions. [2019-11-28 16:14:10,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2019-11-28 16:14:10,504 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:14:10,505 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] [2019-11-28 16:14:10,505 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:14:10,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:14:10,506 INFO L82 PathProgramCache]: Analyzing trace with hash 1750650828, now seen corresponding path program 1 times [2019-11-28 16:14:10,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 16:14:10,507 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170801765] [2019-11-28 16:14:10,507 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 16:14:10,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:14:10,659 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:14:10,659 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170801765] [2019-11-28 16:14:10,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:14:10,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 16:14:10,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946142809] [2019-11-28 16:14:10,663 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 16:14:10,664 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 16:14:10,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 16:14:10,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 16:14:10,665 INFO L87 Difference]: Start difference. First operand 538 states and 826 transitions. Second operand 4 states. [2019-11-28 16:14:12,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:14:12,096 INFO L93 Difference]: Finished difference Result 2142 states and 3296 transitions. [2019-11-28 16:14:12,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 16:14:12,099 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 116 [2019-11-28 16:14:12,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:14:12,109 INFO L225 Difference]: With dead ends: 2142 [2019-11-28 16:14:12,109 INFO L226 Difference]: Without dead ends: 1606 [2019-11-28 16:14:12,112 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 [2019-11-28 16:14:12,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2019-11-28 16:14:12,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1428. [2019-11-28 16:14:12,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1428 states. [2019-11-28 16:14:12,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 2029 transitions. [2019-11-28 16:14:12,170 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 2029 transitions. Word has length 116 [2019-11-28 16:14:12,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:14:12,170 INFO L462 AbstractCegarLoop]: Abstraction has 1428 states and 2029 transitions. [2019-11-28 16:14:12,171 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 16:14:12,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 2029 transitions. [2019-11-28 16:14:12,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-11-28 16:14:12,175 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:14:12,175 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] [2019-11-28 16:14:12,176 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:14:12,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:14:12,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1221588022, now seen corresponding path program 1 times [2019-11-28 16:14:12,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 16:14:12,177 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105047350] [2019-11-28 16:14:12,178 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 16:14:12,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:14:12,326 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:14:12,327 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105047350] [2019-11-28 16:14:12,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:14:12,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 16:14:12,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073129279] [2019-11-28 16:14:12,331 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 16:14:12,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 16:14:12,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 16:14:12,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 16:14:12,333 INFO L87 Difference]: Start difference. First operand 1428 states and 2029 transitions. Second operand 4 states. [2019-11-28 16:14:13,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:14:13,728 INFO L93 Difference]: Finished difference Result 4636 states and 6632 transitions. [2019-11-28 16:14:13,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 16:14:13,729 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 119 [2019-11-28 16:14:13,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:14:13,745 INFO L225 Difference]: With dead ends: 4636 [2019-11-28 16:14:13,746 INFO L226 Difference]: Without dead ends: 3210 [2019-11-28 16:14:13,749 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 [2019-11-28 16:14:13,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3210 states. [2019-11-28 16:14:13,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3210 to 3030. [2019-11-28 16:14:13,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2019-11-28 16:14:13,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3969 transitions. [2019-11-28 16:14:13,820 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3969 transitions. Word has length 119 [2019-11-28 16:14:13,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:14:13,821 INFO L462 AbstractCegarLoop]: Abstraction has 3030 states and 3969 transitions. [2019-11-28 16:14:13,822 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 16:14:13,822 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3969 transitions. [2019-11-28 16:14:13,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-11-28 16:14:13,828 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:14:13,828 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] [2019-11-28 16:14:13,829 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:14:13,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:14:13,829 INFO L82 PathProgramCache]: Analyzing trace with hash 516842708, now seen corresponding path program 1 times [2019-11-28 16:14:13,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 16:14:13,830 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750304472] [2019-11-28 16:14:13,832 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 16:14:13,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:14:14,095 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 44 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:14:14,095 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750304472] [2019-11-28 16:14:14,096 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669572882] [2019-11-28 16:14:14,096 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 [2019-11-28 16:14:14,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:14:14,170 INFO L264 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-28 16:14:14,192 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 16:14:14,275 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:14:14,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-28 16:14:14,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2019-11-28 16:14:14,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961449035] [2019-11-28 16:14:14,278 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 16:14:14,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 16:14:14,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 16:14:14,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-11-28 16:14:14,279 INFO L87 Difference]: Start difference. First operand 3030 states and 3969 transitions. Second operand 4 states. [2019-11-28 16:14:15,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:14:15,359 INFO L93 Difference]: Finished difference Result 6116 states and 8025 transitions. [2019-11-28 16:14:15,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 16:14:15,359 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 131 [2019-11-28 16:14:15,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:14:15,376 INFO L225 Difference]: With dead ends: 6116 [2019-11-28 16:14:15,376 INFO L226 Difference]: Without dead ends: 3208 [2019-11-28 16:14:15,381 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 [2019-11-28 16:14:15,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2019-11-28 16:14:15,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3030. [2019-11-28 16:14:15,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2019-11-28 16:14:15,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3420 transitions. [2019-11-28 16:14:15,497 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3420 transitions. Word has length 131 [2019-11-28 16:14:15,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:14:15,499 INFO L462 AbstractCegarLoop]: Abstraction has 3030 states and 3420 transitions. [2019-11-28 16:14:15,499 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 16:14:15,499 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3420 transitions. [2019-11-28 16:14:15,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2019-11-28 16:14:15,505 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:14:15,505 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] [2019-11-28 16:14:15,710 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 16:14:15,711 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:14:15,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:14:15,712 INFO L82 PathProgramCache]: Analyzing trace with hash -2140852222, now seen corresponding path program 1 times [2019-11-28 16:14:15,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 16:14:15,713 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390788588] [2019-11-28 16:14:15,713 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 16:14:15,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:14:15,893 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2019-11-28 16:14:15,894 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390788588] [2019-11-28 16:14:15,895 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:14:15,895 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 16:14:15,896 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581986015] [2019-11-28 16:14:15,896 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 16:14:15,896 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 16:14:15,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 16:14:15,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 16:14:15,899 INFO L87 Difference]: Start difference. First operand 3030 states and 3420 transitions. Second operand 4 states. [2019-11-28 16:14:17,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:14:17,030 INFO L93 Difference]: Finished difference Result 7660 states and 8738 transitions. [2019-11-28 16:14:17,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 16:14:17,030 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 226 [2019-11-28 16:14:17,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:14:17,051 INFO L225 Difference]: With dead ends: 7660 [2019-11-28 16:14:17,052 INFO L226 Difference]: Without dead ends: 4810 [2019-11-28 16:14:17,057 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 [2019-11-28 16:14:17,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2019-11-28 16:14:17,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 3386. [2019-11-28 16:14:17,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3386 states. [2019-11-28 16:14:17,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3760 transitions. [2019-11-28 16:14:17,131 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3760 transitions. Word has length 226 [2019-11-28 16:14:17,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:14:17,132 INFO L462 AbstractCegarLoop]: Abstraction has 3386 states and 3760 transitions. [2019-11-28 16:14:17,133 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 16:14:17,133 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3760 transitions. [2019-11-28 16:14:17,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2019-11-28 16:14:17,144 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:14:17,145 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] [2019-11-28 16:14:17,145 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:14:17,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:14:17,146 INFO L82 PathProgramCache]: Analyzing trace with hash 669469216, now seen corresponding path program 1 times [2019-11-28 16:14:17,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 16:14:17,147 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797273337] [2019-11-28 16:14:17,147 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 16:14:17,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:14:17,867 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 442 proven. 65 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2019-11-28 16:14:17,868 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797273337] [2019-11-28 16:14:17,868 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570804743] [2019-11-28 16:14:17,869 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 [2019-11-28 16:14:17,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:14:17,987 INFO L264 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 16:14:17,997 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 16:14:18,106 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2019-11-28 16:14:18,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-28 16:14:18,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2019-11-28 16:14:18,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181541460] [2019-11-28 16:14:18,108 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 16:14:18,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 16:14:18,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 16:14:18,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-28 16:14:18,109 INFO L87 Difference]: Start difference. First operand 3386 states and 3760 transitions. Second operand 3 states. [2019-11-28 16:14:18,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:14:18,839 INFO L93 Difference]: Finished difference Result 7126 states and 7965 transitions. [2019-11-28 16:14:18,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 16:14:18,844 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 434 [2019-11-28 16:14:18,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:14:18,863 INFO L225 Difference]: With dead ends: 7126 [2019-11-28 16:14:18,863 INFO L226 Difference]: Without dead ends: 3920 [2019-11-28 16:14:18,869 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 [2019-11-28 16:14:18,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2019-11-28 16:14:18,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3742. [2019-11-28 16:14:18,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3742 states. [2019-11-28 16:14:19,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4118 transitions. [2019-11-28 16:14:19,007 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4118 transitions. Word has length 434 [2019-11-28 16:14:19,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:14:19,009 INFO L462 AbstractCegarLoop]: Abstraction has 3742 states and 4118 transitions. [2019-11-28 16:14:19,009 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 16:14:19,009 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4118 transitions. [2019-11-28 16:14:19,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2019-11-28 16:14:19,022 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:14:19,022 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] [2019-11-28 16:14:19,235 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 16:14:19,236 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:14:19,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:14:19,237 INFO L82 PathProgramCache]: Analyzing trace with hash -887839416, now seen corresponding path program 1 times [2019-11-28 16:14:19,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 16:14:19,239 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621652727] [2019-11-28 16:14:19,239 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 16:14:19,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:14:20,050 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 448 proven. 65 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2019-11-28 16:14:20,052 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621652727] [2019-11-28 16:14:20,052 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520846040] [2019-11-28 16:14:20,052 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 [2019-11-28 16:14:20,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:14:20,184 INFO L264 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-28 16:14:20,191 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 16:14:20,526 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 544 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2019-11-28 16:14:20,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-28 16:14:20,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2019-11-28 16:14:20,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408886908] [2019-11-28 16:14:20,528 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 16:14:20,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 16:14:20,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 16:14:20,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2019-11-28 16:14:20,529 INFO L87 Difference]: Start difference. First operand 3742 states and 4118 transitions. Second operand 7 states. [2019-11-28 16:14:21,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:14:21,525 INFO L93 Difference]: Finished difference Result 7454 states and 8190 transitions. [2019-11-28 16:14:21,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 16:14:21,526 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 459 [2019-11-28 16:14:21,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:14:21,542 INFO L225 Difference]: With dead ends: 7454 [2019-11-28 16:14:21,543 INFO L226 Difference]: Without dead ends: 3742 [2019-11-28 16:14:21,548 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 [2019-11-28 16:14:21,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2019-11-28 16:14:21,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3564. [2019-11-28 16:14:21,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3564 states. [2019-11-28 16:14:21,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3842 transitions. [2019-11-28 16:14:21,607 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3842 transitions. Word has length 459 [2019-11-28 16:14:21,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:14:21,608 INFO L462 AbstractCegarLoop]: Abstraction has 3564 states and 3842 transitions. [2019-11-28 16:14:21,608 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 16:14:21,609 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3842 transitions. [2019-11-28 16:14:21,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 587 [2019-11-28 16:14:21,624 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:14:21,624 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] [2019-11-28 16:14:21,829 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 16:14:21,829 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:14:21,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:14:21,830 INFO L82 PathProgramCache]: Analyzing trace with hash 529060667, now seen corresponding path program 1 times [2019-11-28 16:14:21,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 16:14:21,831 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578661795] [2019-11-28 16:14:21,832 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 16:14:21,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:14:23,169 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 662 proven. 4 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2019-11-28 16:14:23,169 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578661795] [2019-11-28 16:14:23,170 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911520432] [2019-11-28 16:14:23,170 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 [2019-11-28 16:14:23,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:14:23,335 INFO L264 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-28 16:14:23,342 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 16:14:23,371 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 16:14:23,914 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 643 proven. 23 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2019-11-28 16:14:23,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 16:14:23,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2019-11-28 16:14:23,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203827917] [2019-11-28 16:14:23,919 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-28 16:14:23,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 16:14:23,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 16:14:23,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-11-28 16:14:23,921 INFO L87 Difference]: Start difference. First operand 3564 states and 3842 transitions. Second operand 8 states. [2019-11-28 16:14:25,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:14:25,679 INFO L93 Difference]: Finished difference Result 7358 states and 7921 transitions. [2019-11-28 16:14:25,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-28 16:14:25,680 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 586 [2019-11-28 16:14:25,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:14:25,700 INFO L225 Difference]: With dead ends: 7358 [2019-11-28 16:14:25,700 INFO L226 Difference]: Without dead ends: 3974 [2019-11-28 16:14:25,706 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 [2019-11-28 16:14:25,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3974 states. [2019-11-28 16:14:25,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3974 to 3564. [2019-11-28 16:14:25,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3564 states. [2019-11-28 16:14:25,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3840 transitions. [2019-11-28 16:14:25,788 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3840 transitions. Word has length 586 [2019-11-28 16:14:25,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:14:25,789 INFO L462 AbstractCegarLoop]: Abstraction has 3564 states and 3840 transitions. [2019-11-28 16:14:25,789 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-28 16:14:25,789 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3840 transitions. [2019-11-28 16:14:25,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 805 [2019-11-28 16:14:25,818 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:14:25,819 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] [2019-11-28 16:14:26,024 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 16:14:26,024 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:14:26,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:14:26,025 INFO L82 PathProgramCache]: Analyzing trace with hash 627454791, now seen corresponding path program 1 times [2019-11-28 16:14:26,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 16:14:26,025 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986617452] [2019-11-28 16:14:26,025 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 16:14:26,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:14:27,520 INFO L134 CoverageAnalysis]: Checked inductivity of 1955 backedges. 1418 proven. 0 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2019-11-28 16:14:27,520 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986617452] [2019-11-28 16:14:27,521 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:14:27,521 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-28 16:14:27,521 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67802120] [2019-11-28 16:14:27,522 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-28 16:14:27,522 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 16:14:27,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 16:14:27,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-11-28 16:14:27,523 INFO L87 Difference]: Start difference. First operand 3564 states and 3840 transitions. Second operand 8 states. [2019-11-28 16:14:28,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:14:28,957 INFO L93 Difference]: Finished difference Result 6954 states and 7505 transitions. [2019-11-28 16:14:28,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 16:14:28,958 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 804 [2019-11-28 16:14:28,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:14:28,989 INFO L225 Difference]: With dead ends: 6954 [2019-11-28 16:14:28,990 INFO L226 Difference]: Without dead ends: 3570 [2019-11-28 16:14:28,993 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2019-11-28 16:14:28,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3570 states. [2019-11-28 16:14:29,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3570 to 3564. [2019-11-28 16:14:29,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3564 states. [2019-11-28 16:14:29,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3835 transitions. [2019-11-28 16:14:29,044 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3835 transitions. Word has length 804 [2019-11-28 16:14:29,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:14:29,045 INFO L462 AbstractCegarLoop]: Abstraction has 3564 states and 3835 transitions. [2019-11-28 16:14:29,045 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-28 16:14:29,045 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3835 transitions. [2019-11-28 16:14:29,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 831 [2019-11-28 16:14:29,055 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:14:29,056 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] [2019-11-28 16:14:29,059 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:14:29,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:14:29,060 INFO L82 PathProgramCache]: Analyzing trace with hash -1386667544, now seen corresponding path program 1 times [2019-11-28 16:14:29,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 16:14:29,060 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466427389] [2019-11-28 16:14:29,060 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 16:14:29,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:14:30,019 INFO L134 CoverageAnalysis]: Checked inductivity of 1981 backedges. 1463 proven. 155 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2019-11-28 16:14:30,019 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466427389] [2019-11-28 16:14:30,020 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906476693] [2019-11-28 16:14:30,020 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 [2019-11-28 16:14:30,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:14:30,269 INFO L264 TraceCheckSpWp]: Trace formula consists of 1007 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-28 16:14:30,296 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 16:14:31,280 INFO L134 CoverageAnalysis]: Checked inductivity of 1981 backedges. 1463 proven. 155 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2019-11-28 16:14:31,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 16:14:31,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 5 [2019-11-28 16:14:31,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374618701] [2019-11-28 16:14:31,283 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 16:14:31,284 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 16:14:31,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 16:14:31,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-28 16:14:31,284 INFO L87 Difference]: Start difference. First operand 3564 states and 3835 transitions. Second operand 5 states. [2019-11-28 16:14:32,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:14:32,640 INFO L93 Difference]: Finished difference Result 8372 states and 9101 transitions. [2019-11-28 16:14:32,641 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 16:14:32,641 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 830 [2019-11-28 16:14:32,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:14:32,658 INFO L225 Difference]: With dead ends: 8372 [2019-11-28 16:14:32,658 INFO L226 Difference]: Without dead ends: 4988 [2019-11-28 16:14:32,664 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 [2019-11-28 16:14:32,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2019-11-28 16:14:32,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4632. [2019-11-28 16:14:32,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4632 states. [2019-11-28 16:14:32,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4984 transitions. [2019-11-28 16:14:32,734 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4984 transitions. Word has length 830 [2019-11-28 16:14:32,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:14:32,735 INFO L462 AbstractCegarLoop]: Abstraction has 4632 states and 4984 transitions. [2019-11-28 16:14:32,735 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 16:14:32,735 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4984 transitions. [2019-11-28 16:14:32,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 882 [2019-11-28 16:14:32,747 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:14:32,747 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] [2019-11-28 16:14:32,952 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 16:14:32,953 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:14:32,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:14:32,953 INFO L82 PathProgramCache]: Analyzing trace with hash -1338545778, now seen corresponding path program 1 times [2019-11-28 16:14:32,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 16:14:32,954 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649608642] [2019-11-28 16:14:32,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 16:14:33,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:14:34,326 INFO L134 CoverageAnalysis]: Checked inductivity of 2465 backedges. 1267 proven. 205 refuted. 0 times theorem prover too weak. 993 trivial. 0 not checked. [2019-11-28 16:14:34,327 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649608642] [2019-11-28 16:14:34,327 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717502703] [2019-11-28 16:14:34,327 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 [2019-11-28 16:14:34,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:14:34,560 INFO L264 TraceCheckSpWp]: Trace formula consists of 1078 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-28 16:14:34,568 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 16:14:35,308 INFO L134 CoverageAnalysis]: Checked inductivity of 2465 backedges. 1851 proven. 0 refuted. 0 times theorem prover too weak. 614 trivial. 0 not checked. [2019-11-28 16:14:35,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-28 16:14:35,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2019-11-28 16:14:35,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386793836] [2019-11-28 16:14:35,310 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 16:14:35,310 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 16:14:35,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 16:14:35,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-28 16:14:35,311 INFO L87 Difference]: Start difference. First operand 4632 states and 4984 transitions. Second operand 3 states. [2019-11-28 16:14:35,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:14:35,941 INFO L93 Difference]: Finished difference Result 9438 states and 10182 transitions. [2019-11-28 16:14:35,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 16:14:35,941 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 881 [2019-11-28 16:14:35,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:14:35,942 INFO L225 Difference]: With dead ends: 9438 [2019-11-28 16:14:35,943 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 16:14:35,953 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 [2019-11-28 16:14:35,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 16:14:35,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 16:14:35,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 16:14:35,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 16:14:35,954 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 881 [2019-11-28 16:14:35,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:14:35,954 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 16:14:35,954 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 16:14:35,955 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 16:14:35,955 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 16:14:36,155 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 16:14:36,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 16:14:36,503 WARN L192 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 33 [2019-11-28 16:14:36,724 WARN L192 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 33 [2019-11-28 16:14:36,730 INFO L246 CegarLoopResult]: For program point L432(lines 432 870) no Hoare annotation was computed. [2019-11-28 16:14:36,730 INFO L246 CegarLoopResult]: For program point L366(lines 366 870) no Hoare annotation was computed. [2019-11-28 16:14:36,731 INFO L246 CegarLoopResult]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,731 INFO L246 CegarLoopResult]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,731 INFO L246 CegarLoopResult]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,731 INFO L246 CegarLoopResult]: For program point L235(lines 235 870) no Hoare annotation was computed. [2019-11-28 16:14:36,731 INFO L246 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2019-11-28 16:14:36,732 INFO L246 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2019-11-28 16:14:36,732 INFO L246 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2019-11-28 16:14:36,733 INFO L246 CegarLoopResult]: For program point L764(lines 764 870) no Hoare annotation was computed. [2019-11-28 16:14:36,733 INFO L246 CegarLoopResult]: For program point L632(lines 632 870) no Hoare annotation was computed. [2019-11-28 16:14:36,733 INFO L246 CegarLoopResult]: For program point L500(lines 500 870) no Hoare annotation was computed. [2019-11-28 16:14:36,733 INFO L246 CegarLoopResult]: For program point L831(lines 831 870) no Hoare annotation was computed. [2019-11-28 16:14:36,734 INFO L246 CegarLoopResult]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,734 INFO L246 CegarLoopResult]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,734 INFO L246 CegarLoopResult]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,734 INFO L246 CegarLoopResult]: For program point L700(lines 700 870) no Hoare annotation was computed. [2019-11-28 16:14:36,735 INFO L246 CegarLoopResult]: For program point L568(lines 568 870) no Hoare annotation was computed. [2019-11-28 16:14:36,735 INFO L246 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2019-11-28 16:14:36,736 INFO L246 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2019-11-28 16:14:36,736 INFO L246 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2019-11-28 16:14:36,736 INFO L246 CegarLoopResult]: For program point L305(lines 305 870) no Hoare annotation was computed. [2019-11-28 16:14:36,736 INFO L246 CegarLoopResult]: For program point L438(lines 438 870) no Hoare annotation was computed. [2019-11-28 16:14:36,737 INFO L246 CegarLoopResult]: For program point L372(lines 372 870) no Hoare annotation was computed. [2019-11-28 16:14:36,737 INFO L246 CegarLoopResult]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,737 INFO L246 CegarLoopResult]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,738 INFO L246 CegarLoopResult]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,738 INFO L246 CegarLoopResult]: For program point L241(lines 241 870) no Hoare annotation was computed. [2019-11-28 16:14:36,738 INFO L246 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2019-11-28 16:14:36,738 INFO L246 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2019-11-28 16:14:36,739 INFO L246 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2019-11-28 16:14:36,739 INFO L246 CegarLoopResult]: For program point L638(lines 638 870) no Hoare annotation was computed. [2019-11-28 16:14:36,740 INFO L246 CegarLoopResult]: For program point L506(lines 506 870) no Hoare annotation was computed. [2019-11-28 16:14:36,740 INFO L246 CegarLoopResult]: For program point L837(lines 837 870) no Hoare annotation was computed. [2019-11-28 16:14:36,740 INFO L246 CegarLoopResult]: For program point L771(lines 771 870) no Hoare annotation was computed. [2019-11-28 16:14:36,740 INFO L246 CegarLoopResult]: For program point L573(lines 573 870) no Hoare annotation was computed. [2019-11-28 16:14:36,741 INFO L246 CegarLoopResult]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,741 INFO L246 CegarLoopResult]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,741 INFO L246 CegarLoopResult]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,742 INFO L246 CegarLoopResult]: For program point L706(lines 706 870) no Hoare annotation was computed. [2019-11-28 16:14:36,742 INFO L246 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2019-11-28 16:14:36,742 INFO L246 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2019-11-28 16:14:36,743 INFO L246 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2019-11-28 16:14:36,745 INFO L246 CegarLoopResult]: For program point L311(lines 311 870) no Hoare annotation was computed. [2019-11-28 16:14:36,745 INFO L246 CegarLoopResult]: For program point L444(lines 444 870) no Hoare annotation was computed. [2019-11-28 16:14:36,745 INFO L246 CegarLoopResult]: For program point L378(lines 378 870) no Hoare annotation was computed. [2019-11-28 16:14:36,745 INFO L246 CegarLoopResult]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,745 INFO L246 CegarLoopResult]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,746 INFO L246 CegarLoopResult]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,746 INFO L246 CegarLoopResult]: For program point L247(lines 247 870) no Hoare annotation was computed. [2019-11-28 16:14:36,746 INFO L246 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2019-11-28 16:14:36,746 INFO L246 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2019-11-28 16:14:36,746 INFO L246 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2019-11-28 16:14:36,747 INFO L246 CegarLoopResult]: For program point L842(lines 842 870) no Hoare annotation was computed. [2019-11-28 16:14:36,747 INFO L246 CegarLoopResult]: For program point L644(lines 644 870) no Hoare annotation was computed. [2019-11-28 16:14:36,747 INFO L246 CegarLoopResult]: For program point L512(lines 512 870) no Hoare annotation was computed. [2019-11-28 16:14:36,747 INFO L246 CegarLoopResult]: For program point L777(lines 777 870) no Hoare annotation was computed. [2019-11-28 16:14:36,747 INFO L246 CegarLoopResult]: For program point L579(lines 579 870) no Hoare annotation was computed. [2019-11-28 16:14:36,748 INFO L246 CegarLoopResult]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,748 INFO L246 CegarLoopResult]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,748 INFO L246 CegarLoopResult]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,748 INFO L246 CegarLoopResult]: For program point L712(lines 712 870) no Hoare annotation was computed. [2019-11-28 16:14:36,749 INFO L246 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2019-11-28 16:14:36,749 INFO L246 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2019-11-28 16:14:36,749 INFO L246 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2019-11-28 16:14:36,749 INFO L246 CegarLoopResult]: For program point L449(lines 449 870) no Hoare annotation was computed. [2019-11-28 16:14:36,750 INFO L246 CegarLoopResult]: For program point L317(lines 317 870) no Hoare annotation was computed. [2019-11-28 16:14:36,750 INFO L246 CegarLoopResult]: For program point L384(lines 384 870) no Hoare annotation was computed. [2019-11-28 16:14:36,750 INFO L246 CegarLoopResult]: For program point L252(lines 252 870) no Hoare annotation was computed. [2019-11-28 16:14:36,750 INFO L246 CegarLoopResult]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,751 INFO L246 CegarLoopResult]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,751 INFO L246 CegarLoopResult]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,751 INFO L246 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2019-11-28 16:14:36,751 INFO L246 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2019-11-28 16:14:36,752 INFO L246 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2019-11-28 16:14:36,752 INFO L246 CegarLoopResult]: For program point L848(lines 848 870) no Hoare annotation was computed. [2019-11-28 16:14:36,752 INFO L246 CegarLoopResult]: For program point L650(lines 650 870) no Hoare annotation was computed. [2019-11-28 16:14:36,752 INFO L246 CegarLoopResult]: For program point L518(lines 518 870) no Hoare annotation was computed. [2019-11-28 16:14:36,753 INFO L246 CegarLoopResult]: For program point L783(lines 783 870) no Hoare annotation was computed. [2019-11-28 16:14:36,754 INFO L246 CegarLoopResult]: For program point L585(lines 585 870) no Hoare annotation was computed. [2019-11-28 16:14:36,754 INFO L246 CegarLoopResult]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,754 INFO L246 CegarLoopResult]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,754 INFO L246 CegarLoopResult]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,755 INFO L246 CegarLoopResult]: For program point L718(lines 718 870) no Hoare annotation was computed. [2019-11-28 16:14:36,755 INFO L246 CegarLoopResult]: For program point L454(lines 454 870) no Hoare annotation was computed. [2019-11-28 16:14:36,756 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 16:14:36,756 INFO L246 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2019-11-28 16:14:36,756 INFO L246 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2019-11-28 16:14:36,756 INFO L246 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2019-11-28 16:14:36,757 INFO L246 CegarLoopResult]: For program point L323(lines 323 870) no Hoare annotation was computed. [2019-11-28 16:14:36,757 INFO L246 CegarLoopResult]: For program point L390(lines 390 870) no Hoare annotation was computed. [2019-11-28 16:14:36,757 INFO L246 CegarLoopResult]: For program point L258(lines 258 870) no Hoare annotation was computed. [2019-11-28 16:14:36,757 INFO L246 CegarLoopResult]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,758 INFO L246 CegarLoopResult]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,758 INFO L246 CegarLoopResult]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,758 INFO L246 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2019-11-28 16:14:36,758 INFO L246 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2019-11-28 16:14:36,759 INFO L246 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2019-11-28 16:14:36,759 INFO L246 CegarLoopResult]: For program point L854(lines 854 870) no Hoare annotation was computed. [2019-11-28 16:14:36,759 INFO L246 CegarLoopResult]: For program point L656(lines 656 870) no Hoare annotation was computed. [2019-11-28 16:14:36,759 INFO L246 CegarLoopResult]: For program point L524(lines 524 870) no Hoare annotation was computed. [2019-11-28 16:14:36,760 INFO L246 CegarLoopResult]: For program point L789(lines 789 870) no Hoare annotation was computed. [2019-11-28 16:14:36,760 INFO L246 CegarLoopResult]: For program point L591(lines 591 870) no Hoare annotation was computed. [2019-11-28 16:14:36,760 INFO L246 CegarLoopResult]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,760 INFO L246 CegarLoopResult]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,761 INFO L246 CegarLoopResult]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,761 INFO L246 CegarLoopResult]: For program point L724(lines 724 870) no Hoare annotation was computed. [2019-11-28 16:14:36,762 INFO L246 CegarLoopResult]: For program point L460(lines 460 870) no Hoare annotation was computed. [2019-11-28 16:14:36,762 INFO L246 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2019-11-28 16:14:36,762 INFO L246 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2019-11-28 16:14:36,763 INFO L246 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2019-11-28 16:14:36,763 INFO L246 CegarLoopResult]: For program point L329(lines 329 870) no Hoare annotation was computed. [2019-11-28 16:14:36,763 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-28 16:14:36,764 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 157) no Hoare annotation was computed. [2019-11-28 16:14:36,764 INFO L246 CegarLoopResult]: For program point L396(lines 396 870) no Hoare annotation was computed. [2019-11-28 16:14:36,764 INFO L246 CegarLoopResult]: For program point L264(lines 264 870) no Hoare annotation was computed. [2019-11-28 16:14:36,764 INFO L246 CegarLoopResult]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,765 INFO L246 CegarLoopResult]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,765 INFO L246 CegarLoopResult]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,765 INFO L246 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2019-11-28 16:14:36,765 INFO L246 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2019-11-28 16:14:36,766 INFO L246 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2019-11-28 16:14:36,766 INFO L246 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2019-11-28 16:14:36,766 INFO L246 CegarLoopResult]: For program point L662(lines 662 870) no Hoare annotation was computed. [2019-11-28 16:14:36,766 INFO L246 CegarLoopResult]: For program point L530(lines 530 870) no Hoare annotation was computed. [2019-11-28 16:14:36,767 INFO L246 CegarLoopResult]: For program point L795(lines 795 870) no Hoare annotation was computed. [2019-11-28 16:14:36,767 INFO L246 CegarLoopResult]: For program point L597(lines 597 870) no Hoare annotation was computed. [2019-11-28 16:14:36,767 INFO L246 CegarLoopResult]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,767 INFO L246 CegarLoopResult]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,768 INFO L246 CegarLoopResult]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,768 INFO L246 CegarLoopResult]: For program point L730(lines 730 870) no Hoare annotation was computed. [2019-11-28 16:14:36,768 INFO L246 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2019-11-28 16:14:36,768 INFO L246 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2019-11-28 16:14:36,769 INFO L246 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2019-11-28 16:14:36,769 INFO L246 CegarLoopResult]: For program point L467(lines 467 870) no Hoare annotation was computed. [2019-11-28 16:14:36,769 INFO L246 CegarLoopResult]: For program point L335(lines 335 870) no Hoare annotation was computed. [2019-11-28 16:14:36,770 INFO L246 CegarLoopResult]: For program point L269(lines 269 870) no Hoare annotation was computed. [2019-11-28 16:14:36,770 INFO L246 CegarLoopResult]: For program point L402(lines 402 870) no Hoare annotation was computed. [2019-11-28 16:14:36,770 INFO L246 CegarLoopResult]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,770 INFO L246 CegarLoopResult]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,771 INFO L246 CegarLoopResult]: For program point L865(lines 865 870) no Hoare annotation was computed. [2019-11-28 16:14:36,771 INFO L246 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2019-11-28 16:14:36,771 INFO L246 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2019-11-28 16:14:36,771 INFO L246 CegarLoopResult]: For program point L668(lines 668 870) no Hoare annotation was computed. [2019-11-28 16:14:36,772 INFO L246 CegarLoopResult]: For program point L536(lines 536 870) no Hoare annotation was computed. [2019-11-28 16:14:36,772 INFO L246 CegarLoopResult]: For program point L801(lines 801 870) no Hoare annotation was computed. [2019-11-28 16:14:36,772 INFO L246 CegarLoopResult]: For program point L735(lines 735 870) no Hoare annotation was computed. [2019-11-28 16:14:36,772 INFO L246 CegarLoopResult]: For program point L603(lines 603 870) no Hoare annotation was computed. [2019-11-28 16:14:36,772 INFO L246 CegarLoopResult]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,773 INFO L246 CegarLoopResult]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,773 INFO L246 CegarLoopResult]: For program point L472(lines 472 870) no Hoare annotation was computed. [2019-11-28 16:14:36,773 INFO L246 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2019-11-28 16:14:36,773 INFO L246 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2019-11-28 16:14:36,773 INFO L246 CegarLoopResult]: For program point L341(lines 341 870) no Hoare annotation was computed. [2019-11-28 16:14:36,774 INFO L246 CegarLoopResult]: For program point L275(lines 275 870) no Hoare annotation was computed. [2019-11-28 16:14:36,774 INFO L246 CegarLoopResult]: For program point L408(lines 408 870) no Hoare annotation was computed. [2019-11-28 16:14:36,774 INFO L246 CegarLoopResult]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,774 INFO L246 CegarLoopResult]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,776 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))) [2019-11-28 16:14:36,776 INFO L246 CegarLoopResult]: For program point L541(lines 541 870) no Hoare annotation was computed. [2019-11-28 16:14:36,776 INFO L246 CegarLoopResult]: For program point L211(lines 211 870) no Hoare annotation was computed. [2019-11-28 16:14:36,776 INFO L246 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2019-11-28 16:14:36,777 INFO L246 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2019-11-28 16:14:36,777 INFO L246 CegarLoopResult]: For program point L674(lines 674 870) no Hoare annotation was computed. [2019-11-28 16:14:36,777 INFO L246 CegarLoopResult]: For program point L807(lines 807 870) no Hoare annotation was computed. [2019-11-28 16:14:36,777 INFO L246 CegarLoopResult]: For program point L741(lines 741 870) no Hoare annotation was computed. [2019-11-28 16:14:36,777 INFO L246 CegarLoopResult]: For program point L609(lines 609 870) no Hoare annotation was computed. [2019-11-28 16:14:36,778 INFO L246 CegarLoopResult]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,778 INFO L246 CegarLoopResult]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,778 INFO L249 CegarLoopResult]: At program point L874(lines 874 890) the Hoare annotation is: true [2019-11-28 16:14:36,778 INFO L246 CegarLoopResult]: For program point L478(lines 478 870) no Hoare annotation was computed. [2019-11-28 16:14:36,778 INFO L246 CegarLoopResult]: For program point L280(lines 280 870) no Hoare annotation was computed. [2019-11-28 16:14:36,778 INFO L246 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2019-11-28 16:14:36,779 INFO L246 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2019-11-28 16:14:36,779 INFO L246 CegarLoopResult]: For program point L677(lines 677 870) no Hoare annotation was computed. [2019-11-28 16:14:36,779 INFO L246 CegarLoopResult]: For program point L347(lines 347 870) no Hoare annotation was computed. [2019-11-28 16:14:36,779 INFO L246 CegarLoopResult]: For program point L414(lines 414 870) no Hoare annotation was computed. [2019-11-28 16:14:36,779 INFO L246 CegarLoopResult]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,779 INFO L246 CegarLoopResult]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,780 INFO L246 CegarLoopResult]: For program point L547(lines 547 870) no Hoare annotation was computed. [2019-11-28 16:14:36,780 INFO L246 CegarLoopResult]: For program point L217(lines 217 870) no Hoare annotation was computed. [2019-11-28 16:14:36,780 INFO L246 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2019-11-28 16:14:36,780 INFO L246 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2019-11-28 16:14:36,780 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 16:14:36,780 INFO L246 CegarLoopResult]: For program point L747(lines 747 870) no Hoare annotation was computed. [2019-11-28 16:14:36,781 INFO L246 CegarLoopResult]: For program point L615(lines 615 870) no Hoare annotation was computed. [2019-11-28 16:14:36,781 INFO L246 CegarLoopResult]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,781 INFO L246 CegarLoopResult]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,781 INFO L246 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2019-11-28 16:14:36,781 INFO L246 CegarLoopResult]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,781 INFO L246 CegarLoopResult]: For program point L814(lines 814 870) no Hoare annotation was computed. [2019-11-28 16:14:36,782 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))) [2019-11-28 16:14:36,782 INFO L246 CegarLoopResult]: For program point L484(lines 484 870) no Hoare annotation was computed. [2019-11-28 16:14:36,782 INFO L246 CegarLoopResult]: For program point L286(lines 286 870) no Hoare annotation was computed. [2019-11-28 16:14:36,782 INFO L246 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2019-11-28 16:14:36,783 INFO L246 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2019-11-28 16:14:36,783 INFO L246 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2019-11-28 16:14:36,783 INFO L246 CegarLoopResult]: For program point L683(lines 683 870) no Hoare annotation was computed. [2019-11-28 16:14:36,783 INFO L246 CegarLoopResult]: For program point L353(lines 353 870) no Hoare annotation was computed. [2019-11-28 16:14:36,783 INFO L246 CegarLoopResult]: For program point L552(lines 552 870) no Hoare annotation was computed. [2019-11-28 16:14:36,784 INFO L246 CegarLoopResult]: For program point L420(lines 420 870) no Hoare annotation was computed. [2019-11-28 16:14:36,784 INFO L246 CegarLoopResult]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,784 INFO L246 CegarLoopResult]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,784 INFO L246 CegarLoopResult]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,784 INFO L246 CegarLoopResult]: For program point L223(lines 223 870) no Hoare annotation was computed. [2019-11-28 16:14:36,784 INFO L246 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2019-11-28 16:14:36,785 INFO L246 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2019-11-28 16:14:36,785 INFO L246 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2019-11-28 16:14:36,785 INFO L246 CegarLoopResult]: For program point L752(lines 752 870) no Hoare annotation was computed. [2019-11-28 16:14:36,785 INFO L246 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2019-11-28 16:14:36,785 INFO L246 CegarLoopResult]: For program point L819(lines 819 870) no Hoare annotation was computed. [2019-11-28 16:14:36,786 INFO L246 CegarLoopResult]: For program point L621(lines 621 870) no Hoare annotation was computed. [2019-11-28 16:14:36,786 INFO L246 CegarLoopResult]: For program point L555(lines 555 870) no Hoare annotation was computed. [2019-11-28 16:14:36,786 INFO L246 CegarLoopResult]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,786 INFO L246 CegarLoopResult]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,786 INFO L246 CegarLoopResult]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,786 INFO L246 CegarLoopResult]: For program point L688(lines 688 870) no Hoare annotation was computed. [2019-11-28 16:14:36,787 INFO L246 CegarLoopResult]: For program point L490(lines 490 870) no Hoare annotation was computed. [2019-11-28 16:14:36,787 INFO L246 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2019-11-28 16:14:36,787 INFO L246 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2019-11-28 16:14:36,787 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 16:14:36,787 INFO L246 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2019-11-28 16:14:36,788 INFO L246 CegarLoopResult]: For program point L359(lines 359 870) no Hoare annotation was computed. [2019-11-28 16:14:36,788 INFO L246 CegarLoopResult]: For program point L293(lines 293 870) no Hoare annotation was computed. [2019-11-28 16:14:36,788 INFO L246 CegarLoopResult]: For program point L426(lines 426 870) no Hoare annotation was computed. [2019-11-28 16:14:36,788 INFO L246 CegarLoopResult]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,788 INFO L246 CegarLoopResult]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,788 INFO L246 CegarLoopResult]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,789 INFO L246 CegarLoopResult]: For program point L229(lines 229 870) no Hoare annotation was computed. [2019-11-28 16:14:36,789 INFO L246 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2019-11-28 16:14:36,789 INFO L246 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2019-11-28 16:14:36,789 INFO L246 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2019-11-28 16:14:36,789 INFO L246 CegarLoopResult]: For program point L758(lines 758 870) no Hoare annotation was computed. [2019-11-28 16:14:36,790 INFO L246 CegarLoopResult]: For program point L626(lines 626 870) no Hoare annotation was computed. [2019-11-28 16:14:36,790 INFO L246 CegarLoopResult]: For program point L825(lines 825 870) no Hoare annotation was computed. [2019-11-28 16:14:36,790 INFO L246 CegarLoopResult]: For program point L561(lines 561 870) no Hoare annotation was computed. [2019-11-28 16:14:36,790 INFO L246 CegarLoopResult]: For program point L495(lines 495 870) no Hoare annotation was computed. [2019-11-28 16:14:36,790 INFO L246 CegarLoopResult]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,791 INFO L246 CegarLoopResult]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,791 INFO L246 CegarLoopResult]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2019-11-28 16:14:36,791 INFO L246 CegarLoopResult]: For program point L694(lines 694 870) no Hoare annotation was computed. [2019-11-28 16:14:36,791 INFO L246 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2019-11-28 16:14:36,791 INFO L246 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2019-11-28 16:14:36,791 INFO L246 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2019-11-28 16:14:36,791 INFO L246 CegarLoopResult]: For program point L299(lines 299 870) no Hoare annotation was computed. [2019-11-28 16:14:36,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:14:36 BoogieIcfgContainer [2019-11-28 16:14:36,850 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 16:14:36,850 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 16:14:36,851 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 16:14:36,851 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 16:14:36,852 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:14:08" (3/4) ... [2019-11-28 16:14:36,857 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 16:14:36,904 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-28 16:14:36,906 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-28 16:14:37,197 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 16:14:37,198 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 16:14:37,199 INFO L168 Benchmark]: Toolchain (without parser) took 31894.61 ms. Allocated memory was 1.0 GB in the beginning and 2.5 GB in the end (delta: 1.5 GB). Free memory was 951.0 MB in the beginning and 1.4 GB in the end (delta: -471.9 MB). Peak memory consumption was 1.0 GB. Max. memory is 11.5 GB. [2019-11-28 16:14:37,200 INFO L168 Benchmark]: CDTParser took 0.87 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 16:14:37,201 INFO L168 Benchmark]: CACSL2BoogieTranslator took 925.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -154.6 MB). Peak memory consumption was 34.3 MB. Max. memory is 11.5 GB. [2019-11-28 16:14:37,201 INFO L168 Benchmark]: Boogie Procedure Inliner took 149.00 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 16:14:37,201 INFO L168 Benchmark]: Boogie Preprocessor took 107.39 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 16:14:37,202 INFO L168 Benchmark]: RCFGBuilder took 1540.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 966.3 MB in the end (delta: 125.8 MB). Peak memory consumption was 125.8 MB. Max. memory is 11.5 GB. [2019-11-28 16:14:37,202 INFO L168 Benchmark]: TraceAbstraction took 28817.83 ms. Allocated memory was 1.2 GB in the beginning and 2.5 GB in the end (delta: 1.4 GB). Free memory was 966.3 MB in the beginning and 1.5 GB in the end (delta: -489.8 MB). Peak memory consumption was 884.9 MB. Max. memory is 11.5 GB. [2019-11-28 16:14:37,203 INFO L168 Benchmark]: Witness Printer took 347.32 ms. Allocated memory is still 2.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. [2019-11-28 16:14:37,206 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.87 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 925.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -154.6 MB). Peak memory consumption was 34.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 149.00 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 107.39 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1540.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 966.3 MB in the end (delta: 125.8 MB). Peak memory consumption was 125.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 28817.83 ms. Allocated memory was 1.2 GB in the beginning and 2.5 GB in the end (delta: 1.4 GB). Free memory was 966.3 MB in the beginning and 1.5 GB in the end (delta: -489.8 MB). Peak memory consumption was 884.9 MB. Max. memory is 11.5 GB. * Witness Printer took 347.32 ms. Allocated memory is still 2.5 GB. Free memory was 1.5 GB in the beginning and 1.4 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: 28.0s, OverallIterations: 11, TraceHistogramMax: 8, AutomataDifference: 14.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, HoareTripleCheckerStatistics: 843 SDtfs, 3195 SDslu, 144 SDs, 0 SdLazy, 9969 SolverSat, 1172 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.5s 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: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 5.4s 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...