./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem10_label14.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_label14.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 d479880192cc4a9c9c274b145d991450a7e9eab6 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 23:09:41,206 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 23:09:41,209 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 23:09:41,235 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 23:09:41,236 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 23:09:41,237 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 23:09:41,239 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 23:09:41,252 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 23:09:41,254 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 23:09:41,258 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 23:09:41,259 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 23:09:41,261 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 23:09:41,262 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 23:09:41,265 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 23:09:41,268 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 23:09:41,269 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 23:09:41,271 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 23:09:41,273 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 23:09:41,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 23:09:41,279 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 23:09:41,282 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 23:09:41,284 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 23:09:41,285 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 23:09:41,288 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 23:09:41,291 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 23:09:41,293 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 23:09:41,294 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 23:09:41,296 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 23:09:41,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 23:09:41,298 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 23:09:41,299 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 23:09:41,300 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 23:09:41,300 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 23:09:41,301 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 23:09:41,311 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 23:09:41,313 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 23:09:41,314 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 23:09:41,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 23:09:41,315 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 23:09:41,317 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 23:09:41,318 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 23:09:41,320 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 23:09:41,362 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 23:09:41,362 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 23:09:41,364 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 23:09:41,365 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 23:09:41,365 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 23:09:41,365 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 23:09:41,365 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 23:09:41,366 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 23:09:41,366 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 23:09:41,366 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 23:09:41,367 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 23:09:41,368 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 23:09:41,368 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 23:09:41,368 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 23:09:41,368 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 23:09:41,369 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 23:09:41,369 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 23:09:41,369 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 23:09:41,369 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 23:09:41,370 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 23:09:41,370 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 23:09:41,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 23:09:41,370 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 23:09:41,371 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 23:09:41,371 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 23:09:41,371 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 23:09:41,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 23:09:41,372 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 23:09:41,372 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 23:09:41,372 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 -> d479880192cc4a9c9c274b145d991450a7e9eab6 [2020-10-19 23:09:41,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 23:09:41,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 23:09:41,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 23:09:41,659 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 23:09:41,660 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 23:09:41,661 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem10_label14.c [2020-10-19 23:09:41,723 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/407f23581/9510c8027ea14a45bd30f5da02f249b9/FLAG53f4e419c [2020-10-19 23:09:42,315 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 23:09:42,317 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label14.c [2020-10-19 23:09:42,335 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/407f23581/9510c8027ea14a45bd30f5da02f249b9/FLAG53f4e419c [2020-10-19 23:09:42,573 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/407f23581/9510c8027ea14a45bd30f5da02f249b9 [2020-10-19 23:09:42,576 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 23:09:42,583 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 23:09:42,584 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 23:09:42,584 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 23:09:42,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 23:09:42,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 11:09:42" (1/1) ... [2020-10-19 23:09:42,603 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f4031c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:42, skipping insertion in model container [2020-10-19 23:09:42,603 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 11:09:42" (1/1) ... [2020-10-19 23:09:42,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 23:09:42,652 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 23:09:43,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 23:09:43,105 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 23:09:43,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 23:09:43,265 INFO L208 MainTranslator]: Completed translation [2020-10-19 23:09:43,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:43 WrapperNode [2020-10-19 23:09:43,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 23:09:43,267 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 23:09:43,267 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 23:09:43,267 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 23:09:43,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:43" (1/1) ... [2020-10-19 23:09:43,319 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:43" (1/1) ... [2020-10-19 23:09:43,434 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 23:09:43,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 23:09:43,435 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 23:09:43,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 23:09:43,447 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:43" (1/1) ... [2020-10-19 23:09:43,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:43" (1/1) ... [2020-10-19 23:09:43,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:43" (1/1) ... [2020-10-19 23:09:43,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:43" (1/1) ... [2020-10-19 23:09:43,507 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:43" (1/1) ... [2020-10-19 23:09:43,523 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:43" (1/1) ... [2020-10-19 23:09:43,535 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:43" (1/1) ... [2020-10-19 23:09:43,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 23:09:43,551 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 23:09:43,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 23:09:43,552 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 23:09:43,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:43" (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 23:09:43,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 23:09:43,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 23:09:43,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 23:09:43,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 23:09:45,289 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 23:09:45,289 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 23:09:45,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:09:45 BoogieIcfgContainer [2020-10-19 23:09:45,292 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 23:09:45,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 23:09:45,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 23:09:45,297 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 23:09:45,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 11:09:42" (1/3) ... [2020-10-19 23:09:45,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6646f95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 11:09:45, skipping insertion in model container [2020-10-19 23:09:45,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:09:43" (2/3) ... [2020-10-19 23:09:45,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6646f95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 11:09:45, skipping insertion in model container [2020-10-19 23:09:45,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:09:45" (3/3) ... [2020-10-19 23:09:45,301 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label14.c [2020-10-19 23:09:45,313 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 23:09:45,322 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 23:09:45,337 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 23:09:45,365 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 23:09:45,366 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 23:09:45,366 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 23:09:45,366 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 23:09:45,368 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 23:09:45,368 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 23:09:45,369 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 23:09:45,369 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 23:09:45,391 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-19 23:09:45,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-19 23:09:45,400 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:09:45,401 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] [2020-10-19 23:09:45,402 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:09:45,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:09:45,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1843609039, now seen corresponding path program 1 times [2020-10-19 23:09:45,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:09:45,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433409194] [2020-10-19 23:09:45,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:09:45,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:09:45,780 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 23:09:45,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433409194] [2020-10-19 23:09:45,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:09:45,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:09:45,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952923393] [2020-10-19 23:09:45,790 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:09:45,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:09:45,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:09:45,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:09:45,808 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-10-19 23:09:46,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:09:46,987 INFO L93 Difference]: Finished difference Result 553 states and 967 transitions. [2020-10-19 23:09:46,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:09:46,989 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2020-10-19 23:09:46,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:09:47,007 INFO L225 Difference]: With dead ends: 553 [2020-10-19 23:09:47,007 INFO L226 Difference]: Without dead ends: 282 [2020-10-19 23:09:47,012 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 23:09:47,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-10-19 23:09:47,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2020-10-19 23:09:47,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-10-19 23:09:47,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 432 transitions. [2020-10-19 23:09:47,084 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 432 transitions. Word has length 31 [2020-10-19 23:09:47,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:09:47,085 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 432 transitions. [2020-10-19 23:09:47,085 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:09:47,085 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 432 transitions. [2020-10-19 23:09:47,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-19 23:09:47,090 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:09:47,090 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:09:47,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 23:09:47,091 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:09:47,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:09:47,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1420435223, now seen corresponding path program 1 times [2020-10-19 23:09:47,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:09:47,098 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022943932] [2020-10-19 23:09:47,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:09:47,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:09:47,238 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:09:47,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022943932] [2020-10-19 23:09:47,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:09:47,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:09:47,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782890682] [2020-10-19 23:09:47,241 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:09:47,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:09:47,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:09:47,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:09:47,242 INFO L87 Difference]: Start difference. First operand 282 states and 432 transitions. Second operand 3 states. [2020-10-19 23:09:47,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:09:47,892 INFO L93 Difference]: Finished difference Result 701 states and 1076 transitions. [2020-10-19 23:09:47,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:09:47,893 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 100 [2020-10-19 23:09:47,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:09:47,896 INFO L225 Difference]: With dead ends: 701 [2020-10-19 23:09:47,897 INFO L226 Difference]: Without dead ends: 421 [2020-10-19 23:09:47,898 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 23:09:47,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2020-10-19 23:09:47,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2020-10-19 23:09:47,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-10-19 23:09:47,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 596 transitions. [2020-10-19 23:09:47,921 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 596 transitions. Word has length 100 [2020-10-19 23:09:47,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:09:47,921 INFO L481 AbstractCegarLoop]: Abstraction has 421 states and 596 transitions. [2020-10-19 23:09:47,922 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:09:47,922 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 596 transitions. [2020-10-19 23:09:47,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-19 23:09:47,925 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:09:47,925 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:09:47,926 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 23:09:47,926 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:09:47,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:09:47,926 INFO L82 PathProgramCache]: Analyzing trace with hash -2008236584, now seen corresponding path program 1 times [2020-10-19 23:09:47,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:09:47,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222835176] [2020-10-19 23:09:47,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:09:47,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:09:48,072 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:09:48,072 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222835176] [2020-10-19 23:09:48,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:09:48,073 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:09:48,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553854221] [2020-10-19 23:09:48,074 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:09:48,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:09:48,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:09:48,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:09:48,076 INFO L87 Difference]: Start difference. First operand 421 states and 596 transitions. Second operand 3 states. [2020-10-19 23:09:48,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:09:48,748 INFO L93 Difference]: Finished difference Result 562 states and 787 transitions. [2020-10-19 23:09:48,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:09:48,749 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-10-19 23:09:48,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:09:48,752 INFO L225 Difference]: With dead ends: 562 [2020-10-19 23:09:48,752 INFO L226 Difference]: Without dead ends: 560 [2020-10-19 23:09:48,753 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 23:09:48,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-10-19 23:09:48,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 421. [2020-10-19 23:09:48,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-10-19 23:09:48,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 596 transitions. [2020-10-19 23:09:48,783 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 596 transitions. Word has length 106 [2020-10-19 23:09:48,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:09:48,784 INFO L481 AbstractCegarLoop]: Abstraction has 421 states and 596 transitions. [2020-10-19 23:09:48,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:09:48,784 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 596 transitions. [2020-10-19 23:09:48,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-19 23:09:48,789 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:09:48,790 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:09:48,790 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 23:09:48,790 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:09:48,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:09:48,790 INFO L82 PathProgramCache]: Analyzing trace with hash -1040822752, now seen corresponding path program 1 times [2020-10-19 23:09:48,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:09:48,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102319045] [2020-10-19 23:09:48,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:09:48,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:09:49,066 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:09:49,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102319045] [2020-10-19 23:09:49,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:09:49,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:09:49,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039695426] [2020-10-19 23:09:49,068 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:09:49,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:09:49,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:09:49,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:09:49,068 INFO L87 Difference]: Start difference. First operand 421 states and 596 transitions. Second operand 4 states. [2020-10-19 23:09:49,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:09:49,882 INFO L93 Difference]: Finished difference Result 990 states and 1390 transitions. [2020-10-19 23:09:49,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 23:09:49,883 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 109 [2020-10-19 23:09:49,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:09:49,888 INFO L225 Difference]: With dead ends: 990 [2020-10-19 23:09:49,888 INFO L226 Difference]: Without dead ends: 571 [2020-10-19 23:09:49,890 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 23:09:49,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2020-10-19 23:09:49,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 560. [2020-10-19 23:09:49,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-19 23:09:49,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 740 transitions. [2020-10-19 23:09:49,915 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 740 transitions. Word has length 109 [2020-10-19 23:09:49,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:09:49,917 INFO L481 AbstractCegarLoop]: Abstraction has 560 states and 740 transitions. [2020-10-19 23:09:49,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:09:49,917 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 740 transitions. [2020-10-19 23:09:49,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-19 23:09:49,924 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:09:49,924 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:09:49,925 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 23:09:49,925 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:09:49,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:09:49,927 INFO L82 PathProgramCache]: Analyzing trace with hash 438938417, now seen corresponding path program 1 times [2020-10-19 23:09:49,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:09:49,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845630517] [2020-10-19 23:09:49,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:09:49,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:09:50,099 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:09:50,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845630517] [2020-10-19 23:09:50,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:09:50,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:09:50,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939073147] [2020-10-19 23:09:50,102 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:09:50,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:09:50,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:09:50,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:09:50,103 INFO L87 Difference]: Start difference. First operand 560 states and 740 transitions. Second operand 3 states. [2020-10-19 23:09:50,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:09:50,691 INFO L93 Difference]: Finished difference Result 1257 states and 1713 transitions. [2020-10-19 23:09:50,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:09:50,692 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 175 [2020-10-19 23:09:50,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:09:50,700 INFO L225 Difference]: With dead ends: 1257 [2020-10-19 23:09:50,700 INFO L226 Difference]: Without dead ends: 838 [2020-10-19 23:09:50,702 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 23:09:50,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2020-10-19 23:09:50,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 699. [2020-10-19 23:09:50,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-10-19 23:09:50,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 889 transitions. [2020-10-19 23:09:50,722 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 889 transitions. Word has length 175 [2020-10-19 23:09:50,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:09:50,723 INFO L481 AbstractCegarLoop]: Abstraction has 699 states and 889 transitions. [2020-10-19 23:09:50,723 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:09:50,724 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 889 transitions. [2020-10-19 23:09:50,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-10-19 23:09:50,727 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:09:50,728 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:09:50,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-19 23:09:50,730 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:09:50,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:09:50,731 INFO L82 PathProgramCache]: Analyzing trace with hash -2090425977, now seen corresponding path program 1 times [2020-10-19 23:09:50,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:09:50,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920526050] [2020-10-19 23:09:50,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:09:50,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:09:51,065 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:09:51,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920526050] [2020-10-19 23:09:51,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:09:51,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-19 23:09:51,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966709965] [2020-10-19 23:09:51,068 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-19 23:09:51,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:09:51,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 23:09:51,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:09:51,069 INFO L87 Difference]: Start difference. First operand 699 states and 889 transitions. Second operand 7 states. [2020-10-19 23:09:51,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:09:51,685 INFO L93 Difference]: Finished difference Result 1312 states and 1687 transitions. [2020-10-19 23:09:51,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 23:09:51,685 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 184 [2020-10-19 23:09:51,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:09:51,690 INFO L225 Difference]: With dead ends: 1312 [2020-10-19 23:09:51,690 INFO L226 Difference]: Without dead ends: 699 [2020-10-19 23:09:51,693 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 23:09:51,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2020-10-19 23:09:51,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 699. [2020-10-19 23:09:51,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-10-19 23:09:51,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 885 transitions. [2020-10-19 23:09:51,711 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 885 transitions. Word has length 184 [2020-10-19 23:09:51,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:09:51,719 INFO L481 AbstractCegarLoop]: Abstraction has 699 states and 885 transitions. [2020-10-19 23:09:51,719 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-19 23:09:51,719 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 885 transitions. [2020-10-19 23:09:51,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-10-19 23:09:51,723 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:09:51,724 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-19 23:09:51,725 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-19 23:09:51,725 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:09:51,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:09:51,725 INFO L82 PathProgramCache]: Analyzing trace with hash 256357793, now seen corresponding path program 1 times [2020-10-19 23:09:51,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:09:51,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250520160] [2020-10-19 23:09:51,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:09:51,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:09:51,931 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:09:51,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250520160] [2020-10-19 23:09:51,932 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:09:51,932 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:09:51,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118457965] [2020-10-19 23:09:51,933 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:09:51,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:09:51,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:09:51,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:09:51,935 INFO L87 Difference]: Start difference. First operand 699 states and 885 transitions. Second operand 3 states. [2020-10-19 23:09:52,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:09:52,566 INFO L93 Difference]: Finished difference Result 1674 states and 2215 transitions. [2020-10-19 23:09:52,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:09:52,567 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 220 [2020-10-19 23:09:52,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:09:52,573 INFO L225 Difference]: With dead ends: 1674 [2020-10-19 23:09:52,574 INFO L226 Difference]: Without dead ends: 1116 [2020-10-19 23:09:52,576 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 23:09:52,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2020-10-19 23:09:52,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 977. [2020-10-19 23:09:52,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 977 states. [2020-10-19 23:09:52,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1213 transitions. [2020-10-19 23:09:52,609 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1213 transitions. Word has length 220 [2020-10-19 23:09:52,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:09:52,610 INFO L481 AbstractCegarLoop]: Abstraction has 977 states and 1213 transitions. [2020-10-19 23:09:52,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:09:52,611 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1213 transitions. [2020-10-19 23:09:52,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-10-19 23:09:52,615 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:09:52,615 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:09:52,615 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-19 23:09:52,616 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:09:52,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:09:52,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1260821419, now seen corresponding path program 1 times [2020-10-19 23:09:52,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:09:52,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53343442] [2020-10-19 23:09:52,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:09:52,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:09:53,433 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 57 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:09:53,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53343442] [2020-10-19 23:09:53,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575945488] [2020-10-19 23:09:53,434 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 23:09:53,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:09:53,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:09:53,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:09:53,852 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2020-10-19 23:09:53,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:09:53,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2020-10-19 23:09:53,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355506839] [2020-10-19 23:09:53,856 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:09:53,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:09:53,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:09:53,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:09:53,857 INFO L87 Difference]: Start difference. First operand 977 states and 1213 transitions. Second operand 3 states. [2020-10-19 23:09:54,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:09:54,705 INFO L93 Difference]: Finished difference Result 2091 states and 2658 transitions. [2020-10-19 23:09:54,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:09:54,706 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 276 [2020-10-19 23:09:54,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:09:54,712 INFO L225 Difference]: With dead ends: 2091 [2020-10-19 23:09:54,713 INFO L226 Difference]: Without dead ends: 1255 [2020-10-19 23:09:54,714 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:09:54,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2020-10-19 23:09:54,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1116. [2020-10-19 23:09:54,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1116 states. [2020-10-19 23:09:54,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1306 transitions. [2020-10-19 23:09:54,746 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1306 transitions. Word has length 276 [2020-10-19 23:09:54,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:09:54,747 INFO L481 AbstractCegarLoop]: Abstraction has 1116 states and 1306 transitions. [2020-10-19 23:09:54,747 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:09:54,748 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1306 transitions. [2020-10-19 23:09:54,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2020-10-19 23:09:54,754 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:09:54,755 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-19 23:09:54,970 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2020-10-19 23:09:54,971 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:09:54,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:09:54,971 INFO L82 PathProgramCache]: Analyzing trace with hash 341580603, now seen corresponding path program 1 times [2020-10-19 23:09:54,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:09:54,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940682660] [2020-10-19 23:09:54,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:09:55,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:09:55,251 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2020-10-19 23:09:55,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940682660] [2020-10-19 23:09:55,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:09:55,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:09:55,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377907567] [2020-10-19 23:09:55,253 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:09:55,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:09:55,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:09:55,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:09:55,254 INFO L87 Difference]: Start difference. First operand 1116 states and 1306 transitions. Second operand 3 states. [2020-10-19 23:09:55,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:09:55,926 INFO L93 Difference]: Finished difference Result 2923 states and 3437 transitions. [2020-10-19 23:09:55,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:09:55,927 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 330 [2020-10-19 23:09:55,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:09:55,929 INFO L225 Difference]: With dead ends: 2923 [2020-10-19 23:09:55,937 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 23:09:55,941 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 23:09:55,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 23:09:55,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 23:09:55,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 23:09:55,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 23:09:55,943 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 330 [2020-10-19 23:09:55,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:09:55,943 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 23:09:55,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:09:55,944 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 23:09:55,944 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 23:09:55,944 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-19 23:09:55,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 23:09:56,199 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 27 [2020-10-19 23:09:56,202 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-19 23:09:56,202 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-19 23:09:56,202 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-19 23:09:56,203 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-19 23:09:56,203 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-19 23:09:56,203 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-19 23:09:56,203 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-19 23:09:56,203 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-19 23:09:56,203 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-19 23:09:56,203 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-19 23:09:56,203 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-19 23:09:56,203 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-19 23:09:56,203 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-19 23:09:56,204 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-19 23:09:56,204 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,204 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,204 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,204 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,204 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,204 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,204 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-19 23:09:56,204 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-19 23:09:56,205 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-19 23:09:56,205 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-19 23:09:56,205 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-19 23:09:56,205 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-19 23:09:56,205 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-19 23:09:56,205 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-19 23:09:56,205 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-19 23:09:56,205 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-19 23:09:56,206 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-19 23:09:56,206 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,206 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,206 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,206 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,206 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,206 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-19 23:09:56,206 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-19 23:09:56,206 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-19 23:09:56,207 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-19 23:09:56,207 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-19 23:09:56,207 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-19 23:09:56,207 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-19 23:09:56,207 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-19 23:09:56,207 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-19 23:09:56,207 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-19 23:09:56,207 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-19 23:09:56,207 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-19 23:09:56,208 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-19 23:09:56,208 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-19 23:09:56,208 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,208 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,208 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,208 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,208 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,208 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-19 23:09:56,208 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-19 23:09:56,208 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-19 23:09:56,208 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-19 23:09:56,209 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-19 23:09:56,209 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-19 23:09:56,209 INFO L270 CegarLoopResult]: At program point L575(lines 22 576) the Hoare annotation is: (let ((.cse0 (= 14 ~a4~0)) (.cse1 (= ~a12~0 0)) (.cse2 (<= ~a19~0 9))) (or (and (<= ~a10~0 0) .cse0 .cse1) (and .cse0 (= ~a10~0 2) .cse1 .cse2) (and .cse0 (<= ~a1~0 33) .cse1 .cse2) (and (= ~a10~0 1) .cse0 .cse1) (and (<= 8 ~a19~0) .cse0 .cse1 .cse2))) [2020-10-19 23:09:56,209 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-19 23:09:56,209 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-19 23:09:56,209 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-19 23:09:56,209 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-19 23:09:56,210 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,210 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,210 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,210 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,210 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,210 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-19 23:09:56,210 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-19 23:09:56,210 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-19 23:09:56,210 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-19 23:09:56,210 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-19 23:09:56,210 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-19 23:09:56,211 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-19 23:09:56,211 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-19 23:09:56,211 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-19 23:09:56,211 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-19 23:09:56,211 INFO L277 CegarLoopResult]: At program point L578(lines 578 594) the Hoare annotation is: true [2020-10-19 23:09:56,211 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-19 23:09:56,211 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-19 23:09:56,211 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-19 23:09:56,211 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,212 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,212 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,212 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,212 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,213 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-19 23:09:56,213 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-19 23:09:56,213 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-19 23:09:56,214 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-19 23:09:56,214 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-19 23:09:56,214 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-19 23:09:56,215 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-19 23:09:56,216 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-19 23:09:56,216 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 23:09:56,216 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-19 23:09:56,216 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,216 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,217 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,217 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,217 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,217 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-19 23:09:56,217 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-19 23:09:56,218 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-19 23:09:56,218 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-19 23:09:56,218 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-19 23:09:56,218 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-19 23:09:56,218 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-19 23:09:56,218 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-19 23:09:56,219 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-19 23:09:56,219 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-19 23:09:56,219 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-19 23:09:56,219 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-19 23:09:56,220 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse0 (= 14 ~a4~0)) (.cse1 (= ~a12~0 0)) (.cse2 (<= ~a19~0 9))) (or (and (<= ~a10~0 0) .cse0 .cse1) (and .cse0 (= ~a10~0 2) .cse1 .cse2) (and .cse0 (<= ~a1~0 33) .cse1 .cse2) (and (= ~a10~0 1) .cse0 .cse1) (and (<= 8 ~a19~0) .cse0 .cse1 .cse2))) [2020-10-19 23:09:56,221 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-19 23:09:56,221 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,221 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,221 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,221 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,222 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-19 23:09:56,222 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,222 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,222 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-19 23:09:56,222 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-19 23:09:56,227 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-19 23:09:56,227 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-19 23:09:56,228 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-19 23:09:56,228 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-19 23:09:56,228 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-19 23:09:56,228 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-19 23:09:56,229 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-19 23:09:56,229 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-19 23:09:56,229 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-19 23:09:56,229 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 23:09:56,230 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-19 23:09:56,230 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-19 23:09:56,230 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,232 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,232 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,233 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,233 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,233 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,233 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-19 23:09:56,233 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-19 23:09:56,234 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-19 23:09:56,234 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-19 23:09:56,234 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-19 23:09:56,234 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-19 23:09:56,234 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-19 23:09:56,234 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-19 23:09:56,235 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-19 23:09:56,235 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-19 23:09:56,235 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-19 23:09:56,235 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-19 23:09:56,235 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 23:09:56,235 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-19 23:09:56,236 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-19 23:09:56,236 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-19 23:09:56,236 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,236 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,237 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,237 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,237 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,237 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,237 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-19 23:09:56,237 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-19 23:09:56,238 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-19 23:09:56,238 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-19 23:09:56,238 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-19 23:09:56,238 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-19 23:09:56,238 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-19 23:09:56,238 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-19 23:09:56,239 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-19 23:09:56,239 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-19 23:09:56,239 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-19 23:09:56,239 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-19 23:09:56,239 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-19 23:09:56,239 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,240 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,240 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,240 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,240 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,240 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-19 23:09:56,241 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,241 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-19 23:09:56,241 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-19 23:09:56,242 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-19 23:09:56,242 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-19 23:09:56,242 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-19 23:09:56,242 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-19 23:09:56,242 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-19 23:09:56,243 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-19 23:09:56,243 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-19 23:09:56,243 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-19 23:09:56,243 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-19 23:09:56,243 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-19 23:09:56,244 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-19 23:09:56,244 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,244 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,244 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,245 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,245 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,245 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:09:56,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 11:09:56 BoogieIcfgContainer [2020-10-19 23:09:56,289 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 23:09:56,289 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 23:09:56,290 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 23:09:56,290 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 23:09:56,291 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:09:45" (3/4) ... [2020-10-19 23:09:56,295 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 23:09:56,327 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-19 23:09:56,328 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-19 23:09:56,330 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 23:09:56,331 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 23:09:56,553 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 23:09:56,556 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 23:09:56,558 INFO L168 Benchmark]: Toolchain (without parser) took 13980.40 ms. Allocated memory was 36.7 MB in the beginning and 136.8 MB in the end (delta: 100.1 MB). Free memory was 10.8 MB in the beginning and 32.9 MB in the end (delta: -22.0 MB). Peak memory consumption was 78.1 MB. Max. memory is 14.3 GB. [2020-10-19 23:09:56,560 INFO L168 Benchmark]: CDTParser took 0.86 ms. Allocated memory is still 29.4 MB. Free memory was 15.3 MB in the beginning and 15.3 MB in the end (delta: 30.0 kB). Peak memory consumption was 30.0 kB. Max. memory is 14.3 GB. [2020-10-19 23:09:56,561 INFO L168 Benchmark]: CACSL2BoogieTranslator took 682.19 ms. Allocated memory was 36.7 MB in the beginning and 40.4 MB in the end (delta: 3.7 MB). Free memory was 10.0 MB in the beginning and 8.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 5.7 MB. Max. memory is 14.3 GB. [2020-10-19 23:09:56,561 INFO L168 Benchmark]: Boogie Procedure Inliner took 168.03 ms. Allocated memory was 40.4 MB in the beginning and 40.9 MB in the end (delta: 524.3 kB). Free memory was 8.5 MB in the beginning and 18.1 MB in the end (delta: -9.5 MB). Peak memory consumption was 720.6 kB. Max. memory is 14.3 GB. [2020-10-19 23:09:56,562 INFO L168 Benchmark]: Boogie Preprocessor took 115.80 ms. Allocated memory is still 40.9 MB. Free memory was 18.1 MB in the beginning and 12.5 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 14.3 GB. [2020-10-19 23:09:56,562 INFO L168 Benchmark]: RCFGBuilder took 1740.51 ms. Allocated memory was 40.9 MB in the beginning and 60.3 MB in the end (delta: 19.4 MB). Free memory was 12.5 MB in the beginning and 36.6 MB in the end (delta: -24.1 MB). Peak memory consumption was 20.8 MB. Max. memory is 14.3 GB. [2020-10-19 23:09:56,563 INFO L168 Benchmark]: TraceAbstraction took 10996.15 ms. Allocated memory was 60.3 MB in the beginning and 136.8 MB in the end (delta: 76.5 MB). Free memory was 36.1 MB in the beginning and 53.2 MB in the end (delta: -17.1 MB). Peak memory consumption was 59.4 MB. Max. memory is 14.3 GB. [2020-10-19 23:09:56,563 INFO L168 Benchmark]: Witness Printer took 266.92 ms. Allocated memory is still 136.8 MB. Free memory was 53.2 MB in the beginning and 34.8 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 14.3 GB. [2020-10-19 23:09:56,567 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.86 ms. Allocated memory is still 29.4 MB. Free memory was 15.3 MB in the beginning and 15.3 MB in the end (delta: 30.0 kB). Peak memory consumption was 30.0 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 682.19 ms. Allocated memory was 36.7 MB in the beginning and 40.4 MB in the end (delta: 3.7 MB). Free memory was 10.0 MB in the beginning and 8.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 5.7 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 168.03 ms. Allocated memory was 40.4 MB in the beginning and 40.9 MB in the end (delta: 524.3 kB). Free memory was 8.5 MB in the beginning and 18.1 MB in the end (delta: -9.5 MB). Peak memory consumption was 720.6 kB. Max. memory is 14.3 GB. * Boogie Preprocessor took 115.80 ms. Allocated memory is still 40.9 MB. Free memory was 18.1 MB in the beginning and 12.5 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1740.51 ms. Allocated memory was 40.9 MB in the beginning and 60.3 MB in the end (delta: 19.4 MB). Free memory was 12.5 MB in the beginning and 36.6 MB in the end (delta: -24.1 MB). Peak memory consumption was 20.8 MB. Max. memory is 14.3 GB. * TraceAbstraction took 10996.15 ms. Allocated memory was 60.3 MB in the beginning and 136.8 MB in the end (delta: 76.5 MB). Free memory was 36.1 MB in the beginning and 53.2 MB in the end (delta: -17.1 MB). Peak memory consumption was 59.4 MB. Max. memory is 14.3 GB. * Witness Printer took 266.92 ms. Allocated memory is still 136.8 MB. Free memory was 53.2 MB in the beginning and 34.8 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 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: (((((a10 <= 0 && 14 == a4) && a12 == 0) || (((14 == a4 && a10 == 2) && a12 == 0) && a19 <= 9)) || (((14 == a4 && a1 <= 33) && a12 == 0) && a19 <= 9)) || ((a10 == 1 && 14 == a4) && a12 == 0)) || (((8 <= a19 && 14 == a4) && a12 == 0) && a19 <= 9) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (((((a10 <= 0 && 14 == a4) && a12 == 0) || (((14 == a4 && a10 == 2) && a12 == 0) && a19 <= 9)) || (((14 == a4 && a1 <= 33) && a12 == 0) && a19 <= 9)) || ((a10 == 1 && 14 == a4) && a12 == 0)) || (((8 <= a19 && 14 == a4) && a12 == 0) && a19 <= 9) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.5s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 6.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 711 SDtfs, 1036 SDslu, 49 SDs, 0 SdLazy, 3565 SolverSat, 663 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 306 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1116occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 567 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 35 NumberOfFragments, 121 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1323 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 178 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 1807 NumberOfCodeBlocks, 1807 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1797 ConstructedInterpolants, 0 QuantifiedInterpolants, 2126635 SizeOfPredicates, 0 NumberOfNonLiveVariables, 392 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 1040/1154 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...