./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem10_label01.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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/Problem10_label01.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 03b98262284abeca332726de59953ce3dd16b501 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-19 23:09:00,191 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 23:09:00,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 23:09:00,219 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 23:09:00,219 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 23:09:00,220 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 23:09:00,222 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 23:09:00,223 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 23:09:00,225 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 23:09:00,226 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 23:09:00,227 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 23:09:00,228 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 23:09:00,228 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 23:09:00,229 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 23:09:00,230 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 23:09:00,231 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 23:09:00,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 23:09:00,243 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 23:09:00,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 23:09:00,247 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 23:09:00,250 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 23:09:00,253 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 23:09:00,254 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 23:09:00,256 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 23:09:00,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 23:09:00,263 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 23:09:00,263 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 23:09:00,264 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 23:09:00,266 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 23:09:00,267 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 23:09:00,267 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 23:09:00,268 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 23:09:00,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 23:09:00,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 23:09:00,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 23:09:00,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 23:09:00,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 23:09:00,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 23:09:00,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 23:09:00,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 23:09:00,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 23:09:00,276 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 23:09:00,323 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 23:09:00,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 23:09:00,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 23:09:00,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 23:09:00,327 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 23:09:00,327 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 23:09:00,327 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 23:09:00,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 23:09:00,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 23:09:00,328 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 23:09:00,328 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 23:09:00,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 23:09:00,333 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 23:09:00,334 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 23:09:00,334 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 23:09:00,335 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 23:09:00,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 23:09:00,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 23:09:00,335 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 23:09:00,336 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 23:09:00,336 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 23:09:00,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 23:09:00,337 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 23:09:00,337 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 23:09:00,337 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 23:09:00,338 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 23:09:00,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 23:09:00,338 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 23:09:00,339 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 23:09:00,339 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(reach_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 -> 03b98262284abeca332726de59953ce3dd16b501 [2020-10-19 23:09:00,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 23:09:00,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 23:09:00,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 23:09:00,602 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 23:09:00,602 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 23:09:00,603 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem10_label01.c [2020-10-19 23:09:00,673 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6577ce4d6/17b000c921044c27ac9b8f3be984028e/FLAGf62d8d2f3 [2020-10-19 23:09:01,281 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 23:09:01,283 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label01.c [2020-10-19 23:09:01,295 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6577ce4d6/17b000c921044c27ac9b8f3be984028e/FLAGf62d8d2f3 [2020-10-19 23:09:01,541 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6577ce4d6/17b000c921044c27ac9b8f3be984028e [2020-10-19 23:09:01,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 23:09:01,554 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 23:09:01,558 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 23:09:01,558 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 23:09:01,562 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 23:09:01,564 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 11:09:01" (1/1) ... [2020-10-19 23:09:01,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58167e33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:01, skipping insertion in model container [2020-10-19 23:09:01,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 11:09:01" (1/1) ... [2020-10-19 23:09:01,580 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 23:09:01,643 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 23:09:02,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 23:09:02,227 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 23:09:02,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 23:09:02,366 INFO L208 MainTranslator]: Completed translation [2020-10-19 23:09:02,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:02 WrapperNode [2020-10-19 23:09:02,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 23:09:02,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 23:09:02,368 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 23:09:02,368 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 23:09:02,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:02" (1/1) ... [2020-10-19 23:09:02,400 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:02" (1/1) ... [2020-10-19 23:09:02,489 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 23:09:02,490 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 23:09:02,490 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 23:09:02,490 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 23:09:02,501 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:02" (1/1) ... [2020-10-19 23:09:02,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:02" (1/1) ... [2020-10-19 23:09:02,526 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:02" (1/1) ... [2020-10-19 23:09:02,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:02" (1/1) ... [2020-10-19 23:09:02,553 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:02" (1/1) ... [2020-10-19 23:09:02,563 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:02" (1/1) ... [2020-10-19 23:09:02,575 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:02" (1/1) ... [2020-10-19 23:09:02,590 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 23:09:02,590 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 23:09:02,591 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 23:09:02,591 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 23:09:02,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:02" (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 [2020-10-19 23:09:02,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 23:09:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 23:09:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 23:09:02,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 23:09:04,114 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 23:09:04,115 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 23:09:04,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:09:04 BoogieIcfgContainer [2020-10-19 23:09:04,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 23:09:04,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 23:09:04,120 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 23:09:04,124 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 23:09:04,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 11:09:01" (1/3) ... [2020-10-19 23:09:04,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16ac58d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 11:09:04, skipping insertion in model container [2020-10-19 23:09:04,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:02" (2/3) ... [2020-10-19 23:09:04,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16ac58d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 11:09:04, skipping insertion in model container [2020-10-19 23:09:04,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:09:04" (3/3) ... [2020-10-19 23:09:04,128 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label01.c [2020-10-19 23:09:04,142 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 23:09:04,151 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 23:09:04,167 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 23:09:04,193 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 23:09:04,194 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 23:09:04,194 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 23:09:04,194 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 23:09:04,195 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 23:09:04,195 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 23:09:04,195 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 23:09:04,195 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 23:09:04,218 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-19 23:09:04,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-19 23:09:04,227 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:09:04,228 INFO L422 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] [2020-10-19 23:09:04,229 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:09:04,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:09:04,235 INFO L82 PathProgramCache]: Analyzing trace with hash -92557335, now seen corresponding path program 1 times [2020-10-19 23:09:04,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:09:04,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799381566] [2020-10-19 23:09:04,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:09:04,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:09:04,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:09:04,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799381566] [2020-10-19 23:09:04,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:09:04,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:09:04,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738313913] [2020-10-19 23:09:04,774 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:09:04,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:09:04,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:09:04,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:09:04,792 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 4 states. [2020-10-19 23:09:06,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:09:06,295 INFO L93 Difference]: Finished difference Result 697 states and 1249 transitions. [2020-10-19 23:09:06,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:09:06,298 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-19 23:09:06,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:09:06,315 INFO L225 Difference]: With dead ends: 697 [2020-10-19 23:09:06,316 INFO L226 Difference]: Without dead ends: 421 [2020-10-19 23:09:06,320 INFO L677 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 [2020-10-19 23:09:06,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2020-10-19 23:09:06,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2020-10-19 23:09:06,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-10-19 23:09:06,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 581 transitions. [2020-10-19 23:09:06,389 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 581 transitions. Word has length 53 [2020-10-19 23:09:06,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:09:06,390 INFO L481 AbstractCegarLoop]: Abstraction has 421 states and 581 transitions. [2020-10-19 23:09:06,390 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:09:06,390 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 581 transitions. [2020-10-19 23:09:06,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-10-19 23:09:06,410 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:09:06,411 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:09:06,411 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 23:09:06,411 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:09:06,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:09:06,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1546557123, now seen corresponding path program 1 times [2020-10-19 23:09:06,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:09:06,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103453679] [2020-10-19 23:09:06,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:09:06,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:09:06,733 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-10-19 23:09:06,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103453679] [2020-10-19 23:09:06,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:09:06,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:09:06,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39535094] [2020-10-19 23:09:06,737 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:09:06,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:09:06,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:09:06,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:09:06,738 INFO L87 Difference]: Start difference. First operand 421 states and 581 transitions. Second operand 3 states. [2020-10-19 23:09:07,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:09:07,446 INFO L93 Difference]: Finished difference Result 979 states and 1440 transitions. [2020-10-19 23:09:07,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:09:07,452 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 234 [2020-10-19 23:09:07,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:09:07,458 INFO L225 Difference]: With dead ends: 979 [2020-10-19 23:09:07,458 INFO L226 Difference]: Without dead ends: 699 [2020-10-19 23:09:07,459 INFO L677 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 [2020-10-19 23:09:07,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2020-10-19 23:09:07,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 560. [2020-10-19 23:09:07,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-19 23:09:07,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 735 transitions. [2020-10-19 23:09:07,491 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 735 transitions. Word has length 234 [2020-10-19 23:09:07,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:09:07,492 INFO L481 AbstractCegarLoop]: Abstraction has 560 states and 735 transitions. [2020-10-19 23:09:07,492 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:09:07,492 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 735 transitions. [2020-10-19 23:09:07,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-10-19 23:09:07,499 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:09:07,499 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:09:07,500 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 23:09:07,500 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:09:07,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:09:07,500 INFO L82 PathProgramCache]: Analyzing trace with hash -1130493134, now seen corresponding path program 1 times [2020-10-19 23:09:07,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:09:07,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483541967] [2020-10-19 23:09:07,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:09:07,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:09:07,749 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-10-19 23:09:07,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483541967] [2020-10-19 23:09:07,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:09:07,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:09:07,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551027958] [2020-10-19 23:09:07,754 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:09:07,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:09:07,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:09:07,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:09:07,757 INFO L87 Difference]: Start difference. First operand 560 states and 735 transitions. Second operand 3 states. [2020-10-19 23:09:08,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:09:08,506 INFO L93 Difference]: Finished difference Result 1118 states and 1533 transitions. [2020-10-19 23:09:08,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:09:08,507 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 240 [2020-10-19 23:09:08,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:09:08,516 INFO L225 Difference]: With dead ends: 1118 [2020-10-19 23:09:08,517 INFO L226 Difference]: Without dead ends: 699 [2020-10-19 23:09:08,518 INFO L677 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 [2020-10-19 23:09:08,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2020-10-19 23:09:08,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 699. [2020-10-19 23:09:08,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-10-19 23:09:08,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 894 transitions. [2020-10-19 23:09:08,556 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 894 transitions. Word has length 240 [2020-10-19 23:09:08,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:09:08,557 INFO L481 AbstractCegarLoop]: Abstraction has 699 states and 894 transitions. [2020-10-19 23:09:08,558 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:09:08,558 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 894 transitions. [2020-10-19 23:09:08,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-10-19 23:09:08,571 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:09:08,572 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-19 23:09:08,572 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 23:09:08,572 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:09:08,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:09:08,575 INFO L82 PathProgramCache]: Analyzing trace with hash -433040196, now seen corresponding path program 1 times [2020-10-19 23:09:08,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:09:08,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621945911] [2020-10-19 23:09:08,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:09:08,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:09:08,855 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 299 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2020-10-19 23:09:08,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621945911] [2020-10-19 23:09:08,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:09:08,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:09:08,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040523908] [2020-10-19 23:09:08,858 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:09:08,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:09:08,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:09:08,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:09:08,859 INFO L87 Difference]: Start difference. First operand 699 states and 894 transitions. Second operand 3 states. [2020-10-19 23:09:09,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:09:09,496 INFO L93 Difference]: Finished difference Result 1396 states and 1831 transitions. [2020-10-19 23:09:09,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:09:09,496 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 308 [2020-10-19 23:09:09,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:09:09,501 INFO L225 Difference]: With dead ends: 1396 [2020-10-19 23:09:09,501 INFO L226 Difference]: Without dead ends: 838 [2020-10-19 23:09:09,503 INFO L677 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 [2020-10-19 23:09:09,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2020-10-19 23:09:09,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2020-10-19 23:09:09,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 838 states. [2020-10-19 23:09:09,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1043 transitions. [2020-10-19 23:09:09,522 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1043 transitions. Word has length 308 [2020-10-19 23:09:09,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:09:09,523 INFO L481 AbstractCegarLoop]: Abstraction has 838 states and 1043 transitions. [2020-10-19 23:09:09,523 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:09:09,524 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1043 transitions. [2020-10-19 23:09:09,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2020-10-19 23:09:09,529 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:09:09,530 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-19 23:09:09,530 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 23:09:09,530 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:09:09,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:09:09,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1208399846, now seen corresponding path program 1 times [2020-10-19 23:09:09,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:09:09,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486217025] [2020-10-19 23:09:09,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:09:09,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:09:09,907 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 297 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-10-19 23:09:09,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486217025] [2020-10-19 23:09:09,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:09:09,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-19 23:09:09,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731293876] [2020-10-19 23:09:09,909 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-19 23:09:09,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:09:09,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 23:09:09,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:09:09,910 INFO L87 Difference]: Start difference. First operand 838 states and 1043 transitions. Second operand 7 states. [2020-10-19 23:09:10,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:09:10,492 INFO L93 Difference]: Finished difference Result 1590 states and 1995 transitions. [2020-10-19 23:09:10,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 23:09:10,495 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 317 [2020-10-19 23:09:10,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:09:10,500 INFO L225 Difference]: With dead ends: 1590 [2020-10-19 23:09:10,500 INFO L226 Difference]: Without dead ends: 838 [2020-10-19 23:09:10,502 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:09:10,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2020-10-19 23:09:10,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2020-10-19 23:09:10,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 838 states. [2020-10-19 23:09:10,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1039 transitions. [2020-10-19 23:09:10,520 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1039 transitions. Word has length 317 [2020-10-19 23:09:10,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:09:10,520 INFO L481 AbstractCegarLoop]: Abstraction has 838 states and 1039 transitions. [2020-10-19 23:09:10,520 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-19 23:09:10,521 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1039 transitions. [2020-10-19 23:09:10,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2020-10-19 23:09:10,527 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:09:10,527 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:09:10,528 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-19 23:09:10,528 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:09:10,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:09:10,529 INFO L82 PathProgramCache]: Analyzing trace with hash 2029474828, now seen corresponding path program 1 times [2020-10-19 23:09:10,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:09:10,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389629940] [2020-10-19 23:09:10,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:09:10,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:09:11,071 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 352 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:09:11,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389629940] [2020-10-19 23:09:11,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123308622] [2020-10-19 23:09:11,072 INFO L95 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 [2020-10-19 23:09:11,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:09:11,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:09:11,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:09:11,422 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-10-19 23:09:11,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:09:11,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-10-19 23:09:11,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620904183] [2020-10-19 23:09:11,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:09:11,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:09:11,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:09:11,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:09:11,425 INFO L87 Difference]: Start difference. First operand 838 states and 1039 transitions. Second operand 3 states. [2020-10-19 23:09:12,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:09:12,087 INFO L93 Difference]: Finished difference Result 2091 states and 2637 transitions. [2020-10-19 23:09:12,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:09:12,087 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 353 [2020-10-19 23:09:12,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:09:12,099 INFO L225 Difference]: With dead ends: 2091 [2020-10-19 23:09:12,099 INFO L226 Difference]: Without dead ends: 1394 [2020-10-19 23:09:12,101 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:09:12,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2020-10-19 23:09:12,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1394. [2020-10-19 23:09:12,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1394 states. [2020-10-19 23:09:12,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1670 transitions. [2020-10-19 23:09:12,133 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1670 transitions. Word has length 353 [2020-10-19 23:09:12,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:09:12,134 INFO L481 AbstractCegarLoop]: Abstraction has 1394 states and 1670 transitions. [2020-10-19 23:09:12,134 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:09:12,134 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1670 transitions. [2020-10-19 23:09:12,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2020-10-19 23:09:12,138 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:09:12,139 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:09:12,354 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-10-19 23:09:12,355 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:09:12,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:09:12,356 INFO L82 PathProgramCache]: Analyzing trace with hash 188653550, now seen corresponding path program 1 times [2020-10-19 23:09:12,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:09:12,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854031832] [2020-10-19 23:09:12,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:09:12,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:09:13,114 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 102 proven. 232 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2020-10-19 23:09:13,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854031832] [2020-10-19 23:09:13,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446755176] [2020-10-19 23:09:13,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:09:13,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:09:13,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:09:13,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:09:13,500 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2020-10-19 23:09:13,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:09:13,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-10-19 23:09:13,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608432507] [2020-10-19 23:09:13,504 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:09:13,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:09:13,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:09:13,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:09:13,505 INFO L87 Difference]: Start difference. First operand 1394 states and 1670 transitions. Second operand 3 states. [2020-10-19 23:09:14,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:09:14,281 INFO L93 Difference]: Finished difference Result 3064 states and 3736 transitions. [2020-10-19 23:09:14,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:09:14,282 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 366 [2020-10-19 23:09:14,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:09:14,290 INFO L225 Difference]: With dead ends: 3064 [2020-10-19 23:09:14,290 INFO L226 Difference]: Without dead ends: 1811 [2020-10-19 23:09:14,293 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:09:14,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1811 states. [2020-10-19 23:09:14,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1672. [2020-10-19 23:09:14,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1672 states. [2020-10-19 23:09:14,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 1973 transitions. [2020-10-19 23:09:14,326 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 1973 transitions. Word has length 366 [2020-10-19 23:09:14,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:09:14,327 INFO L481 AbstractCegarLoop]: Abstraction has 1672 states and 1973 transitions. [2020-10-19 23:09:14,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:09:14,328 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 1973 transitions. [2020-10-19 23:09:14,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2020-10-19 23:09:14,332 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:09:14,332 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:09:14,545 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:09:14,546 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:09:14,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:09:14,547 INFO L82 PathProgramCache]: Analyzing trace with hash 987241691, now seen corresponding path program 1 times [2020-10-19 23:09:14,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:09:14,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808025421] [2020-10-19 23:09:14,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:09:14,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:09:15,256 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2020-10-19 23:09:15,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808025421] [2020-10-19 23:09:15,257 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:09:15,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:09:15,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175260674] [2020-10-19 23:09:15,258 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:09:15,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:09:15,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:09:15,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:09:15,259 INFO L87 Difference]: Start difference. First operand 1672 states and 1973 transitions. Second operand 4 states. [2020-10-19 23:09:15,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:09:15,755 INFO L93 Difference]: Finished difference Result 3068 states and 3617 transitions. [2020-10-19 23:09:15,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:09:15,756 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 367 [2020-10-19 23:09:15,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:09:15,757 INFO L225 Difference]: With dead ends: 3068 [2020-10-19 23:09:15,757 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 23:09:15,761 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:09:15,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 23:09:15,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 23:09:15,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 23:09:15,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 23:09:15,762 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 367 [2020-10-19 23:09:15,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:09:15,763 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 23:09:15,763 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:09:15,763 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 23:09:15,763 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 23:09:15,763 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-19 23:09:15,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 23:09:15,924 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-19 23:09:15,924 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-19 23:09:15,924 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-19 23:09:15,924 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-19 23:09:15,924 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-19 23:09:15,925 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-19 23:09:15,925 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-19 23:09:15,925 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-19 23:09:15,925 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-19 23:09:15,925 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-19 23:09:15,925 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-19 23:09:15,925 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-19 23:09:15,925 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-19 23:09:15,925 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-19 23:09:15,926 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,926 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,926 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,926 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,929 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,929 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,930 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-19 23:09:15,930 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-19 23:09:15,930 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-19 23:09:15,930 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-19 23:09:15,930 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-19 23:09:15,931 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-19 23:09:15,931 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-19 23:09:15,932 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-19 23:09:15,933 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-19 23:09:15,933 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-19 23:09:15,933 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-19 23:09:15,933 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,933 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,934 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,934 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,934 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,934 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-19 23:09:15,934 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-19 23:09:15,934 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-19 23:09:15,935 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-19 23:09:15,935 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-19 23:09:15,935 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-19 23:09:15,935 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-19 23:09:15,935 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-19 23:09:15,935 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-19 23:09:15,936 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-19 23:09:15,936 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-19 23:09:15,937 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-19 23:09:15,937 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-19 23:09:15,938 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-19 23:09:15,938 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,939 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,939 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,939 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,939 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,939 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-19 23:09:15,939 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-19 23:09:15,940 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-19 23:09:15,940 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-19 23:09:15,940 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-19 23:09:15,940 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-19 23:09:15,942 INFO L270 CegarLoopResult]: At program point L575(lines 22 576) the Hoare annotation is: (let ((.cse0 (= 14 ~a4~0)) (.cse1 (= ~a12~0 0))) (or (and .cse0 (<= 4 ~a10~0) .cse1) (and (= ~a10~0 3) .cse0 .cse1) (and .cse0 (= ~a10~0 0) (<= (+ ~a1~0 551894) 0) .cse1) (and .cse0 .cse1 (not (= ~a19~0 6))))) [2020-10-19 23:09:15,943 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-19 23:09:15,943 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-19 23:09:15,943 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-19 23:09:15,943 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-19 23:09:15,943 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,943 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,944 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,944 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,944 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,944 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-19 23:09:15,944 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-19 23:09:15,945 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-19 23:09:15,945 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-19 23:09:15,945 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-19 23:09:15,945 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-19 23:09:15,945 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-19 23:09:15,945 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-19 23:09:15,946 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-19 23:09:15,946 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-19 23:09:15,947 INFO L277 CegarLoopResult]: At program point L578(lines 578 594) the Hoare annotation is: true [2020-10-19 23:09:15,947 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-19 23:09:15,948 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-19 23:09:15,948 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-19 23:09:15,948 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,948 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,949 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,950 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,950 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,951 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-19 23:09:15,951 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-19 23:09:15,951 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-19 23:09:15,951 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-19 23:09:15,951 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-19 23:09:15,951 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-19 23:09:15,952 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-19 23:09:15,952 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-19 23:09:15,952 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 23:09:15,952 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-19 23:09:15,952 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,953 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,953 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,953 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,953 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,953 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-19 23:09:15,953 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-19 23:09:15,954 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-19 23:09:15,954 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-19 23:09:15,954 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-19 23:09:15,954 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-19 23:09:15,954 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-19 23:09:15,954 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-19 23:09:15,955 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-19 23:09:15,955 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-19 23:09:15,955 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-19 23:09:15,955 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-19 23:09:15,955 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse0 (= 14 ~a4~0)) (.cse1 (= ~a12~0 0))) (or (and .cse0 (<= 4 ~a10~0) .cse1) (and (= ~a10~0 3) .cse0 .cse1) (and .cse0 (= ~a10~0 0) (<= (+ ~a1~0 551894) 0) .cse1) (and .cse0 .cse1 (not (= ~a19~0 6))))) [2020-10-19 23:09:15,956 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-19 23:09:15,956 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,956 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,956 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,956 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,956 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-19 23:09:15,957 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,957 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,957 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-19 23:09:15,957 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-19 23:09:15,957 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-19 23:09:15,957 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-19 23:09:15,958 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-19 23:09:15,958 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-19 23:09:15,958 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-19 23:09:15,958 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-19 23:09:15,958 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-19 23:09:15,959 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-19 23:09:15,959 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-19 23:09:15,959 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 23:09:15,959 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-19 23:09:15,959 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-19 23:09:15,959 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,960 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,960 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,960 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,960 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,960 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,960 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-19 23:09:15,961 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-19 23:09:15,961 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-19 23:09:15,962 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-19 23:09:15,962 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-19 23:09:15,962 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-19 23:09:15,962 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-19 23:09:15,962 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-19 23:09:15,963 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-19 23:09:15,963 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-19 23:09:15,963 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-19 23:09:15,963 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-19 23:09:15,963 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 23:09:15,963 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-19 23:09:15,964 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-19 23:09:15,964 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-19 23:09:15,964 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,964 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,964 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,964 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,965 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,965 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,965 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-19 23:09:15,965 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-19 23:09:15,965 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-19 23:09:15,966 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-19 23:09:15,966 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-19 23:09:15,966 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-19 23:09:15,966 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-19 23:09:15,966 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-19 23:09:15,967 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-19 23:09:15,967 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-19 23:09:15,967 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-19 23:09:15,967 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-19 23:09:15,967 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-19 23:09:15,967 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,968 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,968 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,968 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,968 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,968 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-19 23:09:15,969 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,969 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-19 23:09:15,969 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-19 23:09:15,969 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-19 23:09:15,969 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-19 23:09:15,970 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-19 23:09:15,970 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-19 23:09:15,970 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-19 23:09:15,970 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-19 23:09:15,970 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-19 23:09:15,970 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-19 23:09:15,971 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-19 23:09:15,971 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-19 23:09:15,971 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-19 23:09:15,971 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,971 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,971 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,972 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,972 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:15,972 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:16,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 11:09:16 BoogieIcfgContainer [2020-10-19 23:09:16,001 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 23:09:16,002 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 23:09:16,002 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 23:09:16,002 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 23:09:16,003 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:09:04" (3/4) ... [2020-10-19 23:09:16,006 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 23:09:16,039 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-19 23:09:16,040 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-19 23:09:16,041 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 23:09:16,042 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 23:09:16,270 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 23:09:16,270 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 23:09:16,274 INFO L168 Benchmark]: Toolchain (without parser) took 14724.92 ms. Allocated memory was 35.1 MB in the beginning and 228.1 MB in the end (delta: 192.9 MB). Free memory was 12.3 MB in the beginning and 159.6 MB in the end (delta: -147.2 MB). Peak memory consumption was 45.7 MB. Max. memory is 14.3 GB. [2020-10-19 23:09:16,274 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 33.6 MB. Free memory was 8.8 MB in the beginning and 8.7 MB in the end (delta: 43.5 kB). Peak memory consumption was 43.5 kB. Max. memory is 14.3 GB. [2020-10-19 23:09:16,275 INFO L168 Benchmark]: CACSL2BoogieTranslator took 809.53 ms. Allocated memory was 35.1 MB in the beginning and 46.1 MB in the end (delta: 11.0 MB). Free memory was 11.5 MB in the beginning and 18.0 MB in the end (delta: -6.6 MB). Peak memory consumption was 11.1 MB. Max. memory is 14.3 GB. [2020-10-19 23:09:16,276 INFO L168 Benchmark]: Boogie Procedure Inliner took 122.00 ms. Allocated memory is still 46.1 MB. Free memory was 18.0 MB in the beginning and 22.1 MB in the end (delta: -4.1 MB). Peak memory consumption was 8.9 MB. Max. memory is 14.3 GB. [2020-10-19 23:09:16,276 INFO L168 Benchmark]: Boogie Preprocessor took 100.05 ms. Allocated memory is still 46.1 MB. Free memory was 22.1 MB in the beginning and 16.5 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 14.3 GB. [2020-10-19 23:09:16,277 INFO L168 Benchmark]: RCFGBuilder took 1527.57 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 16.5 MB in the beginning and 19.1 MB in the end (delta: -2.6 MB). Peak memory consumption was 16.5 MB. Max. memory is 14.3 GB. [2020-10-19 23:09:16,277 INFO L168 Benchmark]: TraceAbstraction took 11881.83 ms. Allocated memory was 56.6 MB in the beginning and 228.1 MB in the end (delta: 171.4 MB). Free memory was 18.4 MB in the beginning and 177.4 MB in the end (delta: -159.0 MB). Peak memory consumption was 154.5 MB. Max. memory is 14.3 GB. [2020-10-19 23:09:16,278 INFO L168 Benchmark]: Witness Printer took 268.90 ms. Allocated memory is still 228.1 MB. Free memory was 177.4 MB in the beginning and 159.6 MB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 14.3 GB. [2020-10-19 23:09:16,281 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 33.6 MB. Free memory was 8.8 MB in the beginning and 8.7 MB in the end (delta: 43.5 kB). Peak memory consumption was 43.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 809.53 ms. Allocated memory was 35.1 MB in the beginning and 46.1 MB in the end (delta: 11.0 MB). Free memory was 11.5 MB in the beginning and 18.0 MB in the end (delta: -6.6 MB). Peak memory consumption was 11.1 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 122.00 ms. Allocated memory is still 46.1 MB. Free memory was 18.0 MB in the beginning and 22.1 MB in the end (delta: -4.1 MB). Peak memory consumption was 8.9 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 100.05 ms. Allocated memory is still 46.1 MB. Free memory was 22.1 MB in the beginning and 16.5 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1527.57 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 16.5 MB in the beginning and 19.1 MB in the end (delta: -2.6 MB). Peak memory consumption was 16.5 MB. Max. memory is 14.3 GB. * TraceAbstraction took 11881.83 ms. Allocated memory was 56.6 MB in the beginning and 228.1 MB in the end (delta: 171.4 MB). Free memory was 18.4 MB in the beginning and 177.4 MB in the end (delta: -159.0 MB). Peak memory consumption was 154.5 MB. Max. memory is 14.3 GB. * Witness Printer took 268.90 ms. Allocated memory is still 228.1 MB. Free memory was 177.4 MB in the beginning and 159.6 MB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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: 578]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: ((((14 == a4 && 4 <= a10) && a12 == 0) || ((a10 == 3 && 14 == a4) && a12 == 0)) || (((14 == a4 && a10 == 0) && a1 + 551894 <= 0) && a12 == 0)) || ((14 == a4 && a12 == 0) && !(a19 == 6)) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((((14 == a4 && 4 <= a10) && a12 == 0) || ((a10 == 3 && 14 == a4) && a12 == 0)) || (((14 == a4 && a10 == 0) && a1 + 551894 <= 0) && a12 == 0)) || ((14 == a4 && a12 == 0) && !(a19 == 6)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.5s, OverallIterations: 8, TraceHistogramMax: 4, AutomataDifference: 6.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 919 SDtfs, 1103 SDslu, 49 SDs, 0 SdLazy, 3371 SolverSat, 633 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 749 GetRequests, 727 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1672occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 278 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 32 NumberOfFragments, 95 HoareAnnotationTreeSize, 3 FomulaSimplifications, 414 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 18 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 2957 NumberOfCodeBlocks, 2957 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 2947 ConstructedInterpolants, 0 QuantifiedInterpolants, 4009506 SizeOfPredicates, 1 NumberOfNonLiveVariables, 1013 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 2829/3106 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...