./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem01_label10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem01_label10.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 d90d90ab0f83213f6e486d9f5a42850d0f82e05d ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-27 22:38:32,110 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 22:38:32,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 22:38:32,126 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 22:38:32,127 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 22:38:32,129 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 22:38:32,131 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 22:38:32,141 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 22:38:32,144 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 22:38:32,146 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 22:38:32,148 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 22:38:32,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 22:38:32,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 22:38:32,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 22:38:32,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 22:38:32,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 22:38:32,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 22:38:32,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 22:38:32,161 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 22:38:32,163 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 22:38:32,165 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 22:38:32,166 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 22:38:32,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 22:38:32,169 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 22:38:32,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 22:38:32,171 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 22:38:32,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 22:38:32,173 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 22:38:32,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 22:38:32,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 22:38:32,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 22:38:32,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 22:38:32,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 22:38:32,177 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 22:38:32,179 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 22:38:32,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 22:38:32,180 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 22:38:32,180 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 22:38:32,180 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 22:38:32,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 22:38:32,182 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 22:38:32,183 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 22:38:32,198 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 22:38:32,199 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 22:38:32,200 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 22:38:32,201 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 22:38:32,201 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 22:38:32,201 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 22:38:32,202 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 22:38:32,202 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 22:38:32,202 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 22:38:32,202 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 22:38:32,203 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 22:38:32,203 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 22:38:32,203 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 22:38:32,204 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 22:38:32,204 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 22:38:32,204 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 22:38:32,204 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 22:38:32,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 22:38:32,205 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 22:38:32,205 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 22:38:32,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 22:38:32,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 22:38:32,206 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 22:38:32,206 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 22:38:32,207 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 22:38:32,207 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 22:38:32,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 22:38:32,208 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 22:38:32,208 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 -> d90d90ab0f83213f6e486d9f5a42850d0f82e05d [2019-11-27 22:38:32,500 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 22:38:32,513 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 22:38:32,517 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 22:38:32,518 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 22:38:32,519 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 22:38:32,520 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem01_label10.c [2019-11-27 22:38:32,588 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f5d84c62/7895e204bfb846d3b7fd729bdc948383/FLAGab3b6f015 [2019-11-27 22:38:33,135 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 22:38:33,136 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label10.c [2019-11-27 22:38:33,150 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f5d84c62/7895e204bfb846d3b7fd729bdc948383/FLAGab3b6f015 [2019-11-27 22:38:33,457 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f5d84c62/7895e204bfb846d3b7fd729bdc948383 [2019-11-27 22:38:33,462 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 22:38:33,464 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 22:38:33,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 22:38:33,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 22:38:33,470 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 22:38:33,471 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 10:38:33" (1/1) ... [2019-11-27 22:38:33,475 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@388be10d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:38:33, skipping insertion in model container [2019-11-27 22:38:33,475 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 10:38:33" (1/1) ... [2019-11-27 22:38:33,485 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 22:38:33,560 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 22:38:34,081 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 22:38:34,087 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 22:38:34,220 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 22:38:34,238 INFO L208 MainTranslator]: Completed translation [2019-11-27 22:38:34,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:38:34 WrapperNode [2019-11-27 22:38:34,239 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 22:38:34,240 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 22:38:34,240 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 22:38:34,240 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 22:38:34,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:38:34" (1/1) ... [2019-11-27 22:38:34,266 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:38:34" (1/1) ... [2019-11-27 22:38:34,321 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 22:38:34,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 22:38:34,322 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 22:38:34,322 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 22:38:34,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:38:34" (1/1) ... [2019-11-27 22:38:34,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:38:34" (1/1) ... [2019-11-27 22:38:34,335 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:38:34" (1/1) ... [2019-11-27 22:38:34,336 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:38:34" (1/1) ... [2019-11-27 22:38:34,358 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:38:34" (1/1) ... [2019-11-27 22:38:34,369 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:38:34" (1/1) ... [2019-11-27 22:38:34,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:38:34" (1/1) ... [2019-11-27 22:38:34,396 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 22:38:34,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 22:38:34,398 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 22:38:34,398 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 22:38:34,399 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:38:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 22:38:34,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 22:38:34,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 22:38:35,902 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 22:38:35,902 INFO L297 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-27 22:38:35,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 10:38:35 BoogieIcfgContainer [2019-11-27 22:38:35,904 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 22:38:35,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 22:38:35,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 22:38:35,909 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 22:38:35,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 10:38:33" (1/3) ... [2019-11-27 22:38:35,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c950799 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 10:38:35, skipping insertion in model container [2019-11-27 22:38:35,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:38:34" (2/3) ... [2019-11-27 22:38:35,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c950799 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 10:38:35, skipping insertion in model container [2019-11-27 22:38:35,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 10:38:35" (3/3) ... [2019-11-27 22:38:35,912 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label10.c [2019-11-27 22:38:35,923 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 22:38:35,930 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 22:38:35,943 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 22:38:35,972 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 22:38:35,972 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 22:38:35,973 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 22:38:35,973 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 22:38:35,973 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 22:38:35,973 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 22:38:35,973 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 22:38:35,974 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 22:38:35,997 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2019-11-27 22:38:36,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-11-27 22:38:36,009 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:38:36,011 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:38:36,011 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:38:36,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:38:36,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1265250489, now seen corresponding path program 1 times [2019-11-27 22:38:36,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:38:36,029 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546815273] [2019-11-27 22:38:36,029 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:38:36,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:38:36,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 22:38:36,542 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546815273] [2019-11-27 22:38:36,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 22:38:36,544 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-27 22:38:36,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701881670] [2019-11-27 22:38:36,555 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-27 22:38:36,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 22:38:36,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-27 22:38:36,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-27 22:38:36,577 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 4 states. [2019-11-27 22:38:38,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:38:38,107 INFO L93 Difference]: Finished difference Result 662 states and 1178 transitions. [2019-11-27 22:38:38,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-27 22:38:38,110 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 110 [2019-11-27 22:38:38,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:38:38,141 INFO L225 Difference]: With dead ends: 662 [2019-11-27 22:38:38,141 INFO L226 Difference]: Without dead ends: 397 [2019-11-27 22:38:38,151 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-27 22:38:38,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2019-11-27 22:38:38,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397. [2019-11-27 22:38:38,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2019-11-27 22:38:38,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 559 transitions. [2019-11-27 22:38:38,244 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 559 transitions. Word has length 110 [2019-11-27 22:38:38,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:38:38,245 INFO L462 AbstractCegarLoop]: Abstraction has 397 states and 559 transitions. [2019-11-27 22:38:38,245 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-27 22:38:38,246 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 559 transitions. [2019-11-27 22:38:38,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-11-27 22:38:38,250 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:38:38,250 INFO L410 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:38:38,251 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:38:38,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:38:38,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1518740255, now seen corresponding path program 1 times [2019-11-27 22:38:38,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:38:38,252 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472216117] [2019-11-27 22:38:38,252 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:38:38,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:38:38,309 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 22:38:38,310 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472216117] [2019-11-27 22:38:38,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 22:38:38,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-27 22:38:38,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475089855] [2019-11-27 22:38:38,312 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-27 22:38:38,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 22:38:38,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-27 22:38:38,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-27 22:38:38,313 INFO L87 Difference]: Start difference. First operand 397 states and 559 transitions. Second operand 4 states. [2019-11-27 22:38:38,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:38:38,958 INFO L93 Difference]: Finished difference Result 1185 states and 1672 transitions. [2019-11-27 22:38:38,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 22:38:38,959 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 115 [2019-11-27 22:38:38,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:38:38,967 INFO L225 Difference]: With dead ends: 1185 [2019-11-27 22:38:38,968 INFO L226 Difference]: Without dead ends: 790 [2019-11-27 22:38:38,970 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-27 22:38:38,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2019-11-27 22:38:39,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2019-11-27 22:38:39,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2019-11-27 22:38:39,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1066 transitions. [2019-11-27 22:38:39,030 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1066 transitions. Word has length 115 [2019-11-27 22:38:39,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:38:39,030 INFO L462 AbstractCegarLoop]: Abstraction has 790 states and 1066 transitions. [2019-11-27 22:38:39,030 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-27 22:38:39,030 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1066 transitions. [2019-11-27 22:38:39,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-11-27 22:38:39,038 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:38:39,038 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:38:39,039 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:38:39,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:38:39,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1261995703, now seen corresponding path program 1 times [2019-11-27 22:38:39,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:38:39,040 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950652012] [2019-11-27 22:38:39,040 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:38:39,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:38:39,180 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-27 22:38:39,181 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950652012] [2019-11-27 22:38:39,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 22:38:39,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-27 22:38:39,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118112846] [2019-11-27 22:38:39,185 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-27 22:38:39,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 22:38:39,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-27 22:38:39,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 22:38:39,187 INFO L87 Difference]: Start difference. First operand 790 states and 1066 transitions. Second operand 3 states. [2019-11-27 22:38:39,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:38:39,696 INFO L93 Difference]: Finished difference Result 1971 states and 2686 transitions. [2019-11-27 22:38:39,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 22:38:39,697 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 136 [2019-11-27 22:38:39,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:38:39,704 INFO L225 Difference]: With dead ends: 1971 [2019-11-27 22:38:39,704 INFO L226 Difference]: Without dead ends: 1183 [2019-11-27 22:38:39,706 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 22:38:39,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2019-11-27 22:38:39,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 921. [2019-11-27 22:38:39,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 921 states. [2019-11-27 22:38:39,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1246 transitions. [2019-11-27 22:38:39,734 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1246 transitions. Word has length 136 [2019-11-27 22:38:39,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:38:39,735 INFO L462 AbstractCegarLoop]: Abstraction has 921 states and 1246 transitions. [2019-11-27 22:38:39,735 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-27 22:38:39,735 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1246 transitions. [2019-11-27 22:38:39,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-11-27 22:38:39,739 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:38:39,739 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:38:39,740 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:38:39,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:38:39,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1869093076, now seen corresponding path program 1 times [2019-11-27 22:38:39,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:38:39,741 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786903908] [2019-11-27 22:38:39,741 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:38:39,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:38:39,864 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-11-27 22:38:39,865 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786903908] [2019-11-27 22:38:39,866 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 22:38:39,866 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-27 22:38:39,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871532447] [2019-11-27 22:38:39,867 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-27 22:38:39,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 22:38:39,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-27 22:38:39,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 22:38:39,868 INFO L87 Difference]: Start difference. First operand 921 states and 1246 transitions. Second operand 3 states. [2019-11-27 22:38:40,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:38:40,542 INFO L93 Difference]: Finished difference Result 2233 states and 2997 transitions. [2019-11-27 22:38:40,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 22:38:40,546 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 172 [2019-11-27 22:38:40,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:38:40,556 INFO L225 Difference]: With dead ends: 2233 [2019-11-27 22:38:40,556 INFO L226 Difference]: Without dead ends: 1314 [2019-11-27 22:38:40,559 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 22:38:40,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2019-11-27 22:38:40,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1052. [2019-11-27 22:38:40,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2019-11-27 22:38:40,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1370 transitions. [2019-11-27 22:38:40,591 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1370 transitions. Word has length 172 [2019-11-27 22:38:40,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:38:40,591 INFO L462 AbstractCegarLoop]: Abstraction has 1052 states and 1370 transitions. [2019-11-27 22:38:40,591 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-27 22:38:40,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1370 transitions. [2019-11-27 22:38:40,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-11-27 22:38:40,596 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:38:40,596 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:38:40,596 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:38:40,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:38:40,597 INFO L82 PathProgramCache]: Analyzing trace with hash 378795968, now seen corresponding path program 1 times [2019-11-27 22:38:40,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:38:40,598 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812992231] [2019-11-27 22:38:40,598 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:38:40,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:38:40,742 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2019-11-27 22:38:40,743 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812992231] [2019-11-27 22:38:40,743 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 22:38:40,743 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-27 22:38:40,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526585675] [2019-11-27 22:38:40,744 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-27 22:38:40,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 22:38:40,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-27 22:38:40,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-27 22:38:40,745 INFO L87 Difference]: Start difference. First operand 1052 states and 1370 transitions. Second operand 4 states. [2019-11-27 22:38:41,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:38:41,445 INFO L93 Difference]: Finished difference Result 2238 states and 2892 transitions. [2019-11-27 22:38:41,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-27 22:38:41,446 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 180 [2019-11-27 22:38:41,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:38:41,452 INFO L225 Difference]: With dead ends: 2238 [2019-11-27 22:38:41,452 INFO L226 Difference]: Without dead ends: 1188 [2019-11-27 22:38:41,454 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-27 22:38:41,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1188 states. [2019-11-27 22:38:41,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1188 to 1183. [2019-11-27 22:38:41,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1183 states. [2019-11-27 22:38:41,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1507 transitions. [2019-11-27 22:38:41,480 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1507 transitions. Word has length 180 [2019-11-27 22:38:41,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:38:41,480 INFO L462 AbstractCegarLoop]: Abstraction has 1183 states and 1507 transitions. [2019-11-27 22:38:41,480 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-27 22:38:41,480 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1507 transitions. [2019-11-27 22:38:41,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2019-11-27 22:38:41,484 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:38:41,484 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:38:41,485 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:38:41,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:38:41,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1391763960, now seen corresponding path program 1 times [2019-11-27 22:38:41,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:38:41,486 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493113982] [2019-11-27 22:38:41,486 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:38:41,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:38:41,579 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2019-11-27 22:38:41,580 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493113982] [2019-11-27 22:38:41,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 22:38:41,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-27 22:38:41,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775829120] [2019-11-27 22:38:41,581 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-27 22:38:41,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 22:38:41,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-27 22:38:41,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-27 22:38:41,582 INFO L87 Difference]: Start difference. First operand 1183 states and 1507 transitions. Second operand 5 states. [2019-11-27 22:38:42,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:38:42,694 INFO L93 Difference]: Finished difference Result 2495 states and 3215 transitions. [2019-11-27 22:38:42,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-27 22:38:42,695 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 184 [2019-11-27 22:38:42,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:38:42,703 INFO L225 Difference]: With dead ends: 2495 [2019-11-27 22:38:42,703 INFO L226 Difference]: Without dead ends: 1445 [2019-11-27 22:38:42,705 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-27 22:38:42,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2019-11-27 22:38:42,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1445. [2019-11-27 22:38:42,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1445 states. [2019-11-27 22:38:42,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1799 transitions. [2019-11-27 22:38:42,742 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1799 transitions. Word has length 184 [2019-11-27 22:38:42,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:38:42,743 INFO L462 AbstractCegarLoop]: Abstraction has 1445 states and 1799 transitions. [2019-11-27 22:38:42,743 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-27 22:38:42,743 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1799 transitions. [2019-11-27 22:38:42,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-11-27 22:38:42,748 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:38:42,748 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:38:42,749 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:38:42,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:38:42,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1949803731, now seen corresponding path program 1 times [2019-11-27 22:38:42,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:38:42,750 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852390260] [2019-11-27 22:38:42,750 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:38:42,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:38:42,875 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2019-11-27 22:38:42,875 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852390260] [2019-11-27 22:38:42,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 22:38:42,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-27 22:38:42,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270995428] [2019-11-27 22:38:42,879 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-27 22:38:42,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 22:38:42,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-27 22:38:42,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 22:38:42,888 INFO L87 Difference]: Start difference. First operand 1445 states and 1799 transitions. Second operand 3 states. [2019-11-27 22:38:43,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:38:43,413 INFO L93 Difference]: Finished difference Result 3150 states and 3936 transitions. [2019-11-27 22:38:43,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 22:38:43,414 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 187 [2019-11-27 22:38:43,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:38:43,420 INFO L225 Difference]: With dead ends: 3150 [2019-11-27 22:38:43,421 INFO L226 Difference]: Without dead ends: 1576 [2019-11-27 22:38:43,423 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 22:38:43,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2019-11-27 22:38:43,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1445. [2019-11-27 22:38:43,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1445 states. [2019-11-27 22:38:43,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1592 transitions. [2019-11-27 22:38:43,451 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1592 transitions. Word has length 187 [2019-11-27 22:38:43,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:38:43,451 INFO L462 AbstractCegarLoop]: Abstraction has 1445 states and 1592 transitions. [2019-11-27 22:38:43,451 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-27 22:38:43,451 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1592 transitions. [2019-11-27 22:38:43,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-11-27 22:38:43,456 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:38:43,456 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:38:43,456 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:38:43,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:38:43,457 INFO L82 PathProgramCache]: Analyzing trace with hash -87166121, now seen corresponding path program 1 times [2019-11-27 22:38:43,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:38:43,457 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563921705] [2019-11-27 22:38:43,458 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:38:43,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:38:43,556 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2019-11-27 22:38:43,557 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563921705] [2019-11-27 22:38:43,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 22:38:43,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-27 22:38:43,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756358346] [2019-11-27 22:38:43,558 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-27 22:38:43,558 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 22:38:43,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-27 22:38:43,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 22:38:43,559 INFO L87 Difference]: Start difference. First operand 1445 states and 1592 transitions. Second operand 3 states. [2019-11-27 22:38:44,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:38:44,099 INFO L93 Difference]: Finished difference Result 3412 states and 3789 transitions. [2019-11-27 22:38:44,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 22:38:44,100 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 202 [2019-11-27 22:38:44,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:38:44,109 INFO L225 Difference]: With dead ends: 3412 [2019-11-27 22:38:44,109 INFO L226 Difference]: Without dead ends: 2100 [2019-11-27 22:38:44,111 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 22:38:44,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2019-11-27 22:38:44,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1707. [2019-11-27 22:38:44,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1707 states. [2019-11-27 22:38:44,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 1869 transitions. [2019-11-27 22:38:44,148 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 1869 transitions. Word has length 202 [2019-11-27 22:38:44,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:38:44,148 INFO L462 AbstractCegarLoop]: Abstraction has 1707 states and 1869 transitions. [2019-11-27 22:38:44,149 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-27 22:38:44,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 1869 transitions. [2019-11-27 22:38:44,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2019-11-27 22:38:44,155 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:38:44,155 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:38:44,155 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:38:44,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:38:44,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1247188405, now seen corresponding path program 1 times [2019-11-27 22:38:44,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:38:44,156 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493432721] [2019-11-27 22:38:44,157 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:38:44,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:38:44,366 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 205 proven. 27 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2019-11-27 22:38:44,367 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493432721] [2019-11-27 22:38:44,371 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483628956] [2019-11-27 22:38:44,372 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-27 22:38:44,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:38:44,505 INFO L255 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-27 22:38:44,519 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 22:38:44,616 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 184 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-11-27 22:38:44,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-27 22:38:44,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2019-11-27 22:38:44,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379945425] [2019-11-27 22:38:44,618 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-27 22:38:44,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 22:38:44,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-27 22:38:44,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-11-27 22:38:44,619 INFO L87 Difference]: Start difference. First operand 1707 states and 1869 transitions. Second operand 3 states. [2019-11-27 22:38:45,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:38:45,169 INFO L93 Difference]: Finished difference Result 1707 states and 1869 transitions. [2019-11-27 22:38:45,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 22:38:45,170 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2019-11-27 22:38:45,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:38:45,171 INFO L225 Difference]: With dead ends: 1707 [2019-11-27 22:38:45,172 INFO L226 Difference]: Without dead ends: 0 [2019-11-27 22:38:45,177 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 231 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-11-27 22:38:45,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-27 22:38:45,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-27 22:38:45,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-27 22:38:45,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-27 22:38:45,182 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 231 [2019-11-27 22:38:45,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:38:45,183 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-27 22:38:45,183 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-27 22:38:45,183 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-27 22:38:45,184 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-27 22:38:45,396 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-27 22:38:45,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-27 22:38:45,570 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 21 [2019-11-27 22:38:45,680 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 21 [2019-11-27 22:38:45,684 INFO L246 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2019-11-27 22:38:45,684 INFO L246 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2019-11-27 22:38:45,684 INFO L246 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,684 INFO L246 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,684 INFO L246 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,684 INFO L246 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,684 INFO L246 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,685 INFO L246 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,686 INFO L246 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2019-11-27 22:38:45,686 INFO L246 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2019-11-27 22:38:45,686 INFO L246 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2019-11-27 22:38:45,686 INFO L246 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2019-11-27 22:38:45,686 INFO L246 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2019-11-27 22:38:45,686 INFO L246 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2019-11-27 22:38:45,686 INFO L246 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2019-11-27 22:38:45,687 INFO L246 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2019-11-27 22:38:45,687 INFO L246 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2019-11-27 22:38:45,687 INFO L246 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2019-11-27 22:38:45,687 INFO L246 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,687 INFO L246 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,687 INFO L246 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,687 INFO L246 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,687 INFO L246 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,687 INFO L246 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,687 INFO L246 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2019-11-27 22:38:45,688 INFO L246 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2019-11-27 22:38:45,688 INFO L246 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2019-11-27 22:38:45,688 INFO L246 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2019-11-27 22:38:45,688 INFO L246 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2019-11-27 22:38:45,688 INFO L246 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2019-11-27 22:38:45,688 INFO L246 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2019-11-27 22:38:45,688 INFO L246 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2019-11-27 22:38:45,688 INFO L246 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2019-11-27 22:38:45,688 INFO L246 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2019-11-27 22:38:45,688 INFO L246 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2019-11-27 22:38:45,689 INFO L246 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2019-11-27 22:38:45,693 INFO L246 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2019-11-27 22:38:45,694 INFO L246 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2019-11-27 22:38:45,694 INFO L246 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2019-11-27 22:38:45,694 INFO L246 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,694 INFO L246 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,694 INFO L246 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,695 INFO L246 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,695 INFO L246 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,695 INFO L246 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2019-11-27 22:38:45,695 INFO L246 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2019-11-27 22:38:45,696 INFO L246 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2019-11-27 22:38:45,696 INFO L246 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2019-11-27 22:38:45,696 INFO L246 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2019-11-27 22:38:45,697 INFO L246 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2019-11-27 22:38:45,697 INFO L246 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2019-11-27 22:38:45,698 INFO L246 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2019-11-27 22:38:45,698 INFO L246 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2019-11-27 22:38:45,698 INFO L242 CegarLoopResult]: At program point L574(lines 30 575) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1))) (or (and (not (= ~a16~0 6)) .cse0) (and .cse0 (= 15 ~a8~0)) (and (= ~a17~0 1) .cse0) (and (= 1 ~a7~0) (<= ~a21~0 0)))) [2019-11-27 22:38:45,699 INFO L246 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,699 INFO L246 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,699 INFO L246 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,699 INFO L246 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,699 INFO L246 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,700 INFO L246 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2019-11-27 22:38:45,700 INFO L246 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2019-11-27 22:38:45,700 INFO L246 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2019-11-27 22:38:45,700 INFO L246 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2019-11-27 22:38:45,701 INFO L246 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2019-11-27 22:38:45,701 INFO L246 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2019-11-27 22:38:45,701 INFO L246 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2019-11-27 22:38:45,701 INFO L246 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2019-11-27 22:38:45,701 INFO L246 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2019-11-27 22:38:45,702 INFO L246 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2019-11-27 22:38:45,702 INFO L246 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2019-11-27 22:38:45,702 INFO L246 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2019-11-27 22:38:45,702 INFO L246 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2019-11-27 22:38:45,702 INFO L249 CegarLoopResult]: At program point L577(lines 577 594) the Hoare annotation is: true [2019-11-27 22:38:45,703 INFO L246 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,703 INFO L246 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,703 INFO L246 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,703 INFO L246 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,704 INFO L246 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,704 INFO L246 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2019-11-27 22:38:45,704 INFO L246 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2019-11-27 22:38:45,704 INFO L246 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2019-11-27 22:38:45,704 INFO L246 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2019-11-27 22:38:45,705 INFO L246 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2019-11-27 22:38:45,705 INFO L246 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2019-11-27 22:38:45,705 INFO L246 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2019-11-27 22:38:45,705 INFO L246 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2019-11-27 22:38:45,706 INFO L246 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2019-11-27 22:38:45,706 INFO L246 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,706 INFO L246 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,706 INFO L246 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,707 INFO L246 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,707 INFO L246 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2019-11-27 22:38:45,707 INFO L246 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,708 INFO L246 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2019-11-27 22:38:45,708 INFO L246 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2019-11-27 22:38:45,708 INFO L246 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2019-11-27 22:38:45,708 INFO L246 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2019-11-27 22:38:45,708 INFO L246 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2019-11-27 22:38:45,709 INFO L246 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2019-11-27 22:38:45,709 INFO L246 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2019-11-27 22:38:45,709 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-27 22:38:45,709 INFO L246 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2019-11-27 22:38:45,710 INFO L246 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2019-11-27 22:38:45,710 INFO L246 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2019-11-27 22:38:45,710 INFO L246 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2019-11-27 22:38:45,710 INFO L246 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2019-11-27 22:38:45,710 INFO L246 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2019-11-27 22:38:45,711 INFO L246 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,712 INFO L242 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1))) (or (and (not (= ~a16~0 6)) .cse0) (and .cse0 (= 15 ~a8~0)) (and (= ~a17~0 1) .cse0) (and (= 1 ~a7~0) (<= ~a21~0 0)))) [2019-11-27 22:38:45,712 INFO L246 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,713 INFO L246 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,713 INFO L246 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,713 INFO L246 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,713 INFO L246 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2019-11-27 22:38:45,714 INFO L246 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2019-11-27 22:38:45,715 INFO L246 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2019-11-27 22:38:45,716 INFO L246 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2019-11-27 22:38:45,716 INFO L246 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2019-11-27 22:38:45,716 INFO L246 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2019-11-27 22:38:45,716 INFO L246 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2019-11-27 22:38:45,717 INFO L246 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2019-11-27 22:38:45,717 INFO L246 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,717 INFO L246 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,717 INFO L246 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,718 INFO L246 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,718 INFO L246 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,722 INFO L246 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2019-11-27 22:38:45,722 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-27 22:38:45,723 INFO L246 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2019-11-27 22:38:45,723 INFO L246 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2019-11-27 22:38:45,723 INFO L246 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2019-11-27 22:38:45,723 INFO L246 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2019-11-27 22:38:45,723 INFO L246 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2019-11-27 22:38:45,724 INFO L246 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2019-11-27 22:38:45,724 INFO L246 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2019-11-27 22:38:45,724 INFO L246 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2019-11-27 22:38:45,724 INFO L246 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2019-11-27 22:38:45,724 INFO L246 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2019-11-27 22:38:45,725 INFO L246 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2019-11-27 22:38:45,725 INFO L246 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,725 INFO L246 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,725 INFO L246 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,725 INFO L246 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,726 INFO L246 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2019-11-27 22:38:45,726 INFO L246 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,726 INFO L246 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,726 INFO L246 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2019-11-27 22:38:45,726 INFO L246 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2019-11-27 22:38:45,727 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-27 22:38:45,727 INFO L246 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2019-11-27 22:38:45,727 INFO L246 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2019-11-27 22:38:45,729 INFO L246 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2019-11-27 22:38:45,730 INFO L246 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2019-11-27 22:38:45,730 INFO L246 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2019-11-27 22:38:45,730 INFO L246 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2019-11-27 22:38:45,731 INFO L246 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2019-11-27 22:38:45,731 INFO L246 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2019-11-27 22:38:45,731 INFO L246 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2019-11-27 22:38:45,732 INFO L246 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2019-11-27 22:38:45,732 INFO L246 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,732 INFO L246 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,732 INFO L246 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,732 INFO L246 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,732 INFO L246 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,733 INFO L246 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2019-11-27 22:38:45,733 INFO L246 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,733 INFO L246 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2019-11-27 22:38:45,733 INFO L246 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2019-11-27 22:38:45,733 INFO L246 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2019-11-27 22:38:45,734 INFO L246 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2019-11-27 22:38:45,734 INFO L246 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2019-11-27 22:38:45,734 INFO L246 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2019-11-27 22:38:45,734 INFO L246 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2019-11-27 22:38:45,734 INFO L246 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2019-11-27 22:38:45,735 INFO L246 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2019-11-27 22:38:45,735 INFO L246 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2019-11-27 22:38:45,735 INFO L246 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2019-11-27 22:38:45,735 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-27 22:38:45,735 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 506) no Hoare annotation was computed. [2019-11-27 22:38:45,736 INFO L246 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2019-11-27 22:38:45,736 INFO L246 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2019-11-27 22:38:45,736 INFO L246 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2019-11-27 22:38:45,736 INFO L246 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,737 INFO L246 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,737 INFO L246 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,737 INFO L246 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,737 INFO L246 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,737 INFO L246 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2019-11-27 22:38:45,738 INFO L246 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2019-11-27 22:38:45,738 INFO L246 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2019-11-27 22:38:45,738 INFO L246 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2019-11-27 22:38:45,738 INFO L246 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2019-11-27 22:38:45,738 INFO L246 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2019-11-27 22:38:45,738 INFO L246 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2019-11-27 22:38:45,739 INFO L246 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2019-11-27 22:38:45,739 INFO L246 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2019-11-27 22:38:45,739 INFO L246 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2019-11-27 22:38:45,739 INFO L246 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2019-11-27 22:38:45,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 10:38:45 BoogieIcfgContainer [2019-11-27 22:38:45,773 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 22:38:45,773 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 22:38:45,774 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 22:38:45,774 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 22:38:45,775 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 10:38:35" (3/4) ... [2019-11-27 22:38:45,779 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-27 22:38:45,813 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-27 22:38:45,815 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-27 22:38:46,025 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-27 22:38:46,026 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 22:38:46,029 INFO L168 Benchmark]: Toolchain (without parser) took 12564.43 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 444.6 MB). Free memory was 946.9 MB in the beginning and 1.3 GB in the end (delta: -364.5 MB). Peak memory consumption was 80.1 MB. Max. memory is 11.5 GB. [2019-11-27 22:38:46,029 INFO L168 Benchmark]: CDTParser took 0.27 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. [2019-11-27 22:38:46,030 INFO L168 Benchmark]: CACSL2BoogieTranslator took 773.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -166.5 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. [2019-11-27 22:38:46,030 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.93 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 22:38:46,030 INFO L168 Benchmark]: Boogie Preprocessor took 75.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-27 22:38:46,031 INFO L168 Benchmark]: RCFGBuilder took 1506.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 104.1 MB). Peak memory consumption was 104.1 MB. Max. memory is 11.5 GB. [2019-11-27 22:38:46,031 INFO L168 Benchmark]: TraceAbstraction took 9867.84 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 299.9 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -332.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 22:38:46,032 INFO L168 Benchmark]: Witness Printer took 252.53 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2019-11-27 22:38:46,034 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 773.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -166.5 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 81.93 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 75.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1506.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 104.1 MB). Peak memory consumption was 104.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9867.84 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 299.9 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -332.9 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 252.53 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 506]: 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: 30]: Loop Invariant Derived loop invariant: (((!(a16 == 6) && a21 == 1) || (a21 == 1 && 15 == a8)) || (a17 == 1 && a21 == 1)) || (1 == a7 && a21 <= 0) - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((!(a16 == 6) && a21 == 1) || (a21 == 1 && 15 == a8)) || (a17 == 1 && a21 == 1)) || (1 == a7 && a21 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 198 locations, 1 error locations. Result: SAFE, OverallTime: 9.4s, OverallIterations: 9, TraceHistogramMax: 6, AutomataDifference: 6.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 724 SDtfs, 1756 SDslu, 87 SDs, 0 SdLazy, 4163 SolverSat, 643 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 260 GetRequests, 240 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1707occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 1053 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 36 NumberOfFragments, 61 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1565 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 210 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 1748 NumberOfCodeBlocks, 1748 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1738 ConstructedInterpolants, 0 QuantifiedInterpolants, 651070 SizeOfPredicates, 1 NumberOfNonLiveVariables, 430 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 1401/1428 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...