./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem10_label56.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_label56.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 ba00cf412d1da1a8962fe1de559d53ebecbb39b6 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 23:10:50,173 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 23:10:50,176 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 23:10:50,202 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 23:10:50,203 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 23:10:50,204 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 23:10:50,226 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 23:10:50,231 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 23:10:50,233 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 23:10:50,236 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 23:10:50,237 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 23:10:50,240 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 23:10:50,242 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 23:10:50,245 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 23:10:50,247 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 23:10:50,250 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 23:10:50,252 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 23:10:50,257 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 23:10:50,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 23:10:50,261 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 23:10:50,263 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 23:10:50,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 23:10:50,271 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 23:10:50,272 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 23:10:50,278 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 23:10:50,280 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 23:10:50,280 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 23:10:50,281 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 23:10:50,285 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 23:10:50,287 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 23:10:50,287 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 23:10:50,288 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 23:10:50,289 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 23:10:50,290 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 23:10:50,291 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 23:10:50,292 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 23:10:50,293 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 23:10:50,294 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 23:10:50,294 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 23:10:50,295 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 23:10:50,296 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 23:10:50,297 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 23:10:50,321 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 23:10:50,322 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 23:10:50,323 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 23:10:50,323 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 23:10:50,323 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 23:10:50,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 23:10:50,324 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 23:10:50,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 23:10:50,324 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 23:10:50,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 23:10:50,325 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 23:10:50,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 23:10:50,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 23:10:50,325 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 23:10:50,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 23:10:50,326 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 23:10:50,326 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 23:10:50,326 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 23:10:50,326 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 23:10:50,327 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 23:10:50,327 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 23:10:50,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 23:10:50,327 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 23:10:50,327 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 23:10:50,328 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 23:10:50,328 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 23:10:50,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 23:10:50,328 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 23:10:50,328 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 23:10:50,329 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 -> ba00cf412d1da1a8962fe1de559d53ebecbb39b6 [2020-10-19 23:10:50,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 23:10:50,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 23:10:50,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 23:10:50,577 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 23:10:50,579 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 23:10:50,580 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem10_label56.c [2020-10-19 23:10:50,645 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d908372de/22788f01157047a3967f1ea2fd4e3e62/FLAG89b25f608 [2020-10-19 23:10:51,244 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 23:10:51,245 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label56.c [2020-10-19 23:10:51,261 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d908372de/22788f01157047a3967f1ea2fd4e3e62/FLAG89b25f608 [2020-10-19 23:10:51,487 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d908372de/22788f01157047a3967f1ea2fd4e3e62 [2020-10-19 23:10:51,490 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 23:10:51,497 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 23:10:51,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 23:10:51,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 23:10:51,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 23:10:51,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 11:10:51" (1/1) ... [2020-10-19 23:10:51,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@336ee1d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:51, skipping insertion in model container [2020-10-19 23:10:51,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 11:10:51" (1/1) ... [2020-10-19 23:10:51,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 23:10:51,562 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 23:10:52,090 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 23:10:52,103 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 23:10:52,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 23:10:52,267 INFO L208 MainTranslator]: Completed translation [2020-10-19 23:10:52,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:52 WrapperNode [2020-10-19 23:10:52,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 23:10:52,270 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 23:10:52,270 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 23:10:52,270 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 23:10:52,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:52" (1/1) ... [2020-10-19 23:10:52,302 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:52" (1/1) ... [2020-10-19 23:10:52,385 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 23:10:52,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 23:10:52,386 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 23:10:52,386 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 23:10:52,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:52" (1/1) ... [2020-10-19 23:10:52,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:52" (1/1) ... [2020-10-19 23:10:52,406 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:52" (1/1) ... [2020-10-19 23:10:52,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:52" (1/1) ... [2020-10-19 23:10:52,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:52" (1/1) ... [2020-10-19 23:10:52,445 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:52" (1/1) ... [2020-10-19 23:10:52,458 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:52" (1/1) ... [2020-10-19 23:10:52,471 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 23:10:52,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 23:10:52,473 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 23:10:52,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 23:10:52,474 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:52" (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 23:10:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 23:10:52,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 23:10:52,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 23:10:52,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 23:10:54,011 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 23:10:54,011 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 23:10:54,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:10:54 BoogieIcfgContainer [2020-10-19 23:10:54,015 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 23:10:54,017 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 23:10:54,017 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 23:10:54,021 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 23:10:54,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 11:10:51" (1/3) ... [2020-10-19 23:10:54,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@390f7db3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 11:10:54, skipping insertion in model container [2020-10-19 23:10:54,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:52" (2/3) ... [2020-10-19 23:10:54,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@390f7db3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 11:10:54, skipping insertion in model container [2020-10-19 23:10:54,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:10:54" (3/3) ... [2020-10-19 23:10:54,027 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label56.c [2020-10-19 23:10:54,039 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 23:10:54,049 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 23:10:54,063 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 23:10:54,093 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 23:10:54,093 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 23:10:54,112 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 23:10:54,112 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 23:10:54,113 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 23:10:54,113 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 23:10:54,114 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 23:10:54,115 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 23:10:54,138 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-19 23:10:54,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-19 23:10:54,145 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:54,146 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] [2020-10-19 23:10:54,146 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:54,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:54,152 INFO L82 PathProgramCache]: Analyzing trace with hash -573341295, now seen corresponding path program 1 times [2020-10-19 23:10:54,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:54,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313586603] [2020-10-19 23:10:54,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:54,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:54,375 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 23:10:54,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313586603] [2020-10-19 23:10:54,377 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:54,377 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:10:54,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219675066] [2020-10-19 23:10:54,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:54,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:54,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:54,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:54,402 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-10-19 23:10:55,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:55,562 INFO L93 Difference]: Finished difference Result 553 states and 967 transitions. [2020-10-19 23:10:55,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:55,565 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-10-19 23:10:55,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:55,582 INFO L225 Difference]: With dead ends: 553 [2020-10-19 23:10:55,582 INFO L226 Difference]: Without dead ends: 282 [2020-10-19 23:10:55,588 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 23:10:55,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-10-19 23:10:55,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2020-10-19 23:10:55,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-10-19 23:10:55,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 377 transitions. [2020-10-19 23:10:55,650 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 377 transitions. Word has length 23 [2020-10-19 23:10:55,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:55,651 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 377 transitions. [2020-10-19 23:10:55,651 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:55,651 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 377 transitions. [2020-10-19 23:10:55,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-19 23:10:55,655 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:55,655 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-19 23:10:55,656 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 23:10:55,656 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:55,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:55,656 INFO L82 PathProgramCache]: Analyzing trace with hash -944620830, now seen corresponding path program 1 times [2020-10-19 23:10:55,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:55,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926978121] [2020-10-19 23:10:55,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:55,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:55,885 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:10:55,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926978121] [2020-10-19 23:10:55,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:55,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:10:55,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338346549] [2020-10-19 23:10:55,888 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:55,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:55,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:55,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:55,889 INFO L87 Difference]: Start difference. First operand 282 states and 377 transitions. Second operand 3 states. [2020-10-19 23:10:56,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:56,556 INFO L93 Difference]: Finished difference Result 701 states and 967 transitions. [2020-10-19 23:10:56,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:56,557 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 89 [2020-10-19 23:10:56,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:56,560 INFO L225 Difference]: With dead ends: 701 [2020-10-19 23:10:56,561 INFO L226 Difference]: Without dead ends: 421 [2020-10-19 23:10:56,563 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 23:10:56,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2020-10-19 23:10:56,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2020-10-19 23:10:56,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-10-19 23:10:56,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 526 transitions. [2020-10-19 23:10:56,589 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 526 transitions. Word has length 89 [2020-10-19 23:10:56,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:56,590 INFO L481 AbstractCegarLoop]: Abstraction has 421 states and 526 transitions. [2020-10-19 23:10:56,590 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:56,590 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 526 transitions. [2020-10-19 23:10:56,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-19 23:10:56,594 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:56,594 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2020-10-19 23:10:56,595 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 23:10:56,595 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:56,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:56,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1213265939, now seen corresponding path program 1 times [2020-10-19 23:10:56,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:56,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540575280] [2020-10-19 23:10:56,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:56,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:56,759 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:10:56,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540575280] [2020-10-19 23:10:56,760 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:56,760 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:10:56,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050423197] [2020-10-19 23:10:56,761 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:56,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:56,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:56,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:56,762 INFO L87 Difference]: Start difference. First operand 421 states and 526 transitions. Second operand 3 states. [2020-10-19 23:10:57,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:57,423 INFO L93 Difference]: Finished difference Result 979 states and 1209 transitions. [2020-10-19 23:10:57,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:57,424 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 96 [2020-10-19 23:10:57,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:57,428 INFO L225 Difference]: With dead ends: 979 [2020-10-19 23:10:57,429 INFO L226 Difference]: Without dead ends: 560 [2020-10-19 23:10:57,430 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 23:10:57,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-10-19 23:10:57,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2020-10-19 23:10:57,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-19 23:10:57,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 675 transitions. [2020-10-19 23:10:57,452 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 675 transitions. Word has length 96 [2020-10-19 23:10:57,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:57,452 INFO L481 AbstractCegarLoop]: Abstraction has 560 states and 675 transitions. [2020-10-19 23:10:57,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:57,453 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 675 transitions. [2020-10-19 23:10:57,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-19 23:10:57,456 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:57,457 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2020-10-19 23:10:57,457 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 23:10:57,457 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:57,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:57,458 INFO L82 PathProgramCache]: Analyzing trace with hash -2075684168, now seen corresponding path program 1 times [2020-10-19 23:10:57,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:57,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953195755] [2020-10-19 23:10:57,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:57,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:57,564 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:10:57,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953195755] [2020-10-19 23:10:57,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:57,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:10:57,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97939432] [2020-10-19 23:10:57,566 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:57,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:57,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:57,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:57,567 INFO L87 Difference]: Start difference. First operand 560 states and 675 transitions. Second operand 3 states. [2020-10-19 23:10:58,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:58,226 INFO L93 Difference]: Finished difference Result 1118 states and 1414 transitions. [2020-10-19 23:10:58,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:58,230 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 98 [2020-10-19 23:10:58,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:58,235 INFO L225 Difference]: With dead ends: 1118 [2020-10-19 23:10:58,235 INFO L226 Difference]: Without dead ends: 699 [2020-10-19 23:10:58,237 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 23:10:58,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2020-10-19 23:10:58,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 699. [2020-10-19 23:10:58,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-10-19 23:10:58,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 849 transitions. [2020-10-19 23:10:58,275 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 849 transitions. Word has length 98 [2020-10-19 23:10:58,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:58,277 INFO L481 AbstractCegarLoop]: Abstraction has 699 states and 849 transitions. [2020-10-19 23:10:58,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:58,277 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 849 transitions. [2020-10-19 23:10:58,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-19 23:10:58,282 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:58,282 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:10:58,282 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 23:10:58,282 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:58,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:58,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1905121248, now seen corresponding path program 1 times [2020-10-19 23:10:58,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:58,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411763047] [2020-10-19 23:10:58,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:58,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:58,380 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:10:58,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411763047] [2020-10-19 23:10:58,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:58,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:10:58,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254915907] [2020-10-19 23:10:58,382 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:58,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:58,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:58,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:58,382 INFO L87 Difference]: Start difference. First operand 699 states and 849 transitions. Second operand 3 states. [2020-10-19 23:10:59,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:59,023 INFO L93 Difference]: Finished difference Result 1535 states and 1880 transitions. [2020-10-19 23:10:59,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:59,023 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 114 [2020-10-19 23:10:59,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:59,028 INFO L225 Difference]: With dead ends: 1535 [2020-10-19 23:10:59,028 INFO L226 Difference]: Without dead ends: 977 [2020-10-19 23:10:59,030 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 23:10:59,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2020-10-19 23:10:59,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 977. [2020-10-19 23:10:59,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 977 states. [2020-10-19 23:10:59,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1122 transitions. [2020-10-19 23:10:59,053 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1122 transitions. Word has length 114 [2020-10-19 23:10:59,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:59,053 INFO L481 AbstractCegarLoop]: Abstraction has 977 states and 1122 transitions. [2020-10-19 23:10:59,053 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:59,053 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1122 transitions. [2020-10-19 23:10:59,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-19 23:10:59,057 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:59,057 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:10:59,057 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-19 23:10:59,057 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:59,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:59,058 INFO L82 PathProgramCache]: Analyzing trace with hash -870450484, now seen corresponding path program 1 times [2020-10-19 23:10:59,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:59,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202016565] [2020-10-19 23:10:59,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:59,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:59,330 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:10:59,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202016565] [2020-10-19 23:10:59,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:59,331 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-19 23:10:59,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936826488] [2020-10-19 23:10:59,332 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-19 23:10:59,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:59,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 23:10:59,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:10:59,333 INFO L87 Difference]: Start difference. First operand 977 states and 1122 transitions. Second operand 7 states. [2020-10-19 23:10:59,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:59,938 INFO L93 Difference]: Finished difference Result 1868 states and 2153 transitions. [2020-10-19 23:10:59,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 23:10:59,939 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 171 [2020-10-19 23:10:59,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:59,946 INFO L225 Difference]: With dead ends: 1868 [2020-10-19 23:10:59,946 INFO L226 Difference]: Without dead ends: 977 [2020-10-19 23:10:59,948 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 23:10:59,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2020-10-19 23:10:59,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 977. [2020-10-19 23:10:59,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 977 states. [2020-10-19 23:10:59,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1118 transitions. [2020-10-19 23:10:59,977 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1118 transitions. Word has length 171 [2020-10-19 23:10:59,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:59,978 INFO L481 AbstractCegarLoop]: Abstraction has 977 states and 1118 transitions. [2020-10-19 23:10:59,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-19 23:10:59,978 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1118 transitions. [2020-10-19 23:10:59,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-10-19 23:10:59,981 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:59,981 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:10:59,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-19 23:10:59,982 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:59,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:59,983 INFO L82 PathProgramCache]: Analyzing trace with hash -1855880078, now seen corresponding path program 1 times [2020-10-19 23:10:59,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:59,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460740701] [2020-10-19 23:10:59,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:11:00,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:11:00,156 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-19 23:11:00,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460740701] [2020-10-19 23:11:00,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:11:00,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:11:00,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026901256] [2020-10-19 23:11:00,158 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:11:00,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:11:00,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:11:00,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:11:00,159 INFO L87 Difference]: Start difference. First operand 977 states and 1118 transitions. Second operand 3 states. [2020-10-19 23:11:00,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:11:00,841 INFO L93 Difference]: Finished difference Result 1952 states and 2280 transitions. [2020-10-19 23:11:00,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:11:00,842 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 207 [2020-10-19 23:11:00,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:11:00,850 INFO L225 Difference]: With dead ends: 1952 [2020-10-19 23:11:00,850 INFO L226 Difference]: Without dead ends: 1116 [2020-10-19 23:11:00,853 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 23:11:00,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2020-10-19 23:11:00,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1116. [2020-10-19 23:11:00,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1116 states. [2020-10-19 23:11:00,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1272 transitions. [2020-10-19 23:11:00,891 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1272 transitions. Word has length 207 [2020-10-19 23:11:00,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:11:00,892 INFO L481 AbstractCegarLoop]: Abstraction has 1116 states and 1272 transitions. [2020-10-19 23:11:00,892 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:11:00,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1272 transitions. [2020-10-19 23:11:00,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-10-19 23:11:00,895 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:11:00,896 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:11:00,897 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-19 23:11:00,897 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:11:00,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:11:00,898 INFO L82 PathProgramCache]: Analyzing trace with hash -1193363733, now seen corresponding path program 1 times [2020-10-19 23:11:00,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:11:00,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070035075] [2020-10-19 23:11:00,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:11:00,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:11:01,398 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-10-19 23:11:01,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070035075] [2020-10-19 23:11:01,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657080950] [2020-10-19 23:11:01,399 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 23:11:01,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:11:01,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:11:01,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:11:01,711 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-10-19 23:11:01,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:11:01,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-10-19 23:11:01,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987582940] [2020-10-19 23:11:01,712 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:11:01,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:11:01,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:11:01,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:11:01,713 INFO L87 Difference]: Start difference. First operand 1116 states and 1272 transitions. Second operand 3 states. [2020-10-19 23:11:02,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:11:02,347 INFO L93 Difference]: Finished difference Result 1813 states and 2067 transitions. [2020-10-19 23:11:02,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:11:02,347 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 217 [2020-10-19 23:11:02,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:11:02,356 INFO L225 Difference]: With dead ends: 1813 [2020-10-19 23:11:02,356 INFO L226 Difference]: Without dead ends: 1811 [2020-10-19 23:11:02,358 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:11:02,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1811 states. [2020-10-19 23:11:02,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1255. [2020-10-19 23:11:02,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2020-10-19 23:11:02,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1460 transitions. [2020-10-19 23:11:02,396 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1460 transitions. Word has length 217 [2020-10-19 23:11:02,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:11:02,396 INFO L481 AbstractCegarLoop]: Abstraction has 1255 states and 1460 transitions. [2020-10-19 23:11:02,397 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:11:02,397 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1460 transitions. [2020-10-19 23:11:02,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-10-19 23:11:02,402 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:11:02,402 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-19 23:11:02,616 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2020-10-19 23:11:02,616 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:11:02,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:11:02,617 INFO L82 PathProgramCache]: Analyzing trace with hash 100835602, now seen corresponding path program 1 times [2020-10-19 23:11:02,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:11:02,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739903526] [2020-10-19 23:11:02,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:11:02,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:11:03,266 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 26 proven. 125 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:11:03,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739903526] [2020-10-19 23:11:03,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385800816] [2020-10-19 23:11:03,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:11:03,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:11:03,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-19 23:11:03,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:11:03,490 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-19 23:11:03,673 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:03,723 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:05,222 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 21 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:11:05,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 23:11:05,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2020-10-19 23:11:05,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108764442] [2020-10-19 23:11:05,225 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-19 23:11:05,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:11:05,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-19 23:11:05,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-19 23:11:05,226 INFO L87 Difference]: Start difference. First operand 1255 states and 1460 transitions. Second operand 8 states. [2020-10-19 23:11:30,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:11:30,957 INFO L93 Difference]: Finished difference Result 4470 states and 5261 transitions. [2020-10-19 23:11:30,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 23:11:30,958 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 271 [2020-10-19 23:11:30,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:11:30,974 INFO L225 Difference]: With dead ends: 4470 [2020-10-19 23:11:30,975 INFO L226 Difference]: Without dead ends: 3340 [2020-10-19 23:11:30,978 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-19 23:11:30,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3340 states. [2020-10-19 23:11:31,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3340 to 2645. [2020-10-19 23:11:31,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2645 states. [2020-10-19 23:11:31,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2645 states to 2645 states and 3070 transitions. [2020-10-19 23:11:31,040 INFO L78 Accepts]: Start accepts. Automaton has 2645 states and 3070 transitions. Word has length 271 [2020-10-19 23:11:31,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:11:31,041 INFO L481 AbstractCegarLoop]: Abstraction has 2645 states and 3070 transitions. [2020-10-19 23:11:31,041 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-19 23:11:31,041 INFO L276 IsEmpty]: Start isEmpty. Operand 2645 states and 3070 transitions. [2020-10-19 23:11:31,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2020-10-19 23:11:31,048 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:11:31,048 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-19 23:11:31,263 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:11:31,263 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:11:31,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:11:31,264 INFO L82 PathProgramCache]: Analyzing trace with hash -1002506770, now seen corresponding path program 1 times [2020-10-19 23:11:31,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:11:31,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409432450] [2020-10-19 23:11:31,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:11:31,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:11:31,914 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 230 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-10-19 23:11:31,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409432450] [2020-10-19 23:11:31,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:11:31,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 23:11:31,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036111714] [2020-10-19 23:11:31,917 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 23:11:31,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:11:31,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 23:11:31,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:11:31,918 INFO L87 Difference]: Start difference. First operand 2645 states and 3070 transitions. Second operand 5 states. [2020-10-19 23:11:32,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:11:32,967 INFO L93 Difference]: Finished difference Result 5171 states and 6017 transitions. [2020-10-19 23:11:32,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 23:11:32,968 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 303 [2020-10-19 23:11:32,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:11:32,981 INFO L225 Difference]: With dead ends: 5171 [2020-10-19 23:11:32,982 INFO L226 Difference]: Without dead ends: 2645 [2020-10-19 23:11:32,986 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:11:32,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2645 states. [2020-10-19 23:11:33,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2645 to 2645. [2020-10-19 23:11:33,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2645 states. [2020-10-19 23:11:33,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2645 states to 2645 states and 2917 transitions. [2020-10-19 23:11:33,043 INFO L78 Accepts]: Start accepts. Automaton has 2645 states and 2917 transitions. Word has length 303 [2020-10-19 23:11:33,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:11:33,044 INFO L481 AbstractCegarLoop]: Abstraction has 2645 states and 2917 transitions. [2020-10-19 23:11:33,044 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 23:11:33,044 INFO L276 IsEmpty]: Start isEmpty. Operand 2645 states and 2917 transitions. [2020-10-19 23:11:33,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2020-10-19 23:11:33,051 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:11:33,052 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:11:33,052 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-19 23:11:33,053 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:11:33,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:11:33,053 INFO L82 PathProgramCache]: Analyzing trace with hash -1282077767, now seen corresponding path program 1 times [2020-10-19 23:11:33,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:11:33,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138378083] [2020-10-19 23:11:33,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:11:33,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:11:33,293 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 219 proven. 21 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-10-19 23:11:33,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138378083] [2020-10-19 23:11:33,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426205842] [2020-10-19 23:11:33,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:11:33,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:11:33,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 23:11:33,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:11:33,432 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 23:11:33,478 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 23:11:33,487 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 23:11:33,504 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 23:11:33,558 INFO L721 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-19 23:11:33,667 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 23:11:33,675 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 23:11:33,679 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 23:11:34,052 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 219 proven. 21 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-10-19 23:11:34,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 23:11:34,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-10-19 23:11:34,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717618393] [2020-10-19 23:11:34,055 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:11:34,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:11:34,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:11:34,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:11:34,057 INFO L87 Difference]: Start difference. First operand 2645 states and 2917 transitions. Second operand 4 states. [2020-10-19 23:11:35,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:11:35,393 INFO L93 Difference]: Finished difference Result 6956 states and 7722 transitions. [2020-10-19 23:11:35,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:11:35,394 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 325 [2020-10-19 23:11:35,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:11:35,411 INFO L225 Difference]: With dead ends: 6956 [2020-10-19 23:11:35,412 INFO L226 Difference]: Without dead ends: 4452 [2020-10-19 23:11:35,415 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 324 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:11:35,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4452 states. [2020-10-19 23:11:35,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4452 to 3896. [2020-10-19 23:11:35,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3896 states. [2020-10-19 23:11:35,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3896 states to 3896 states and 4277 transitions. [2020-10-19 23:11:35,495 INFO L78 Accepts]: Start accepts. Automaton has 3896 states and 4277 transitions. Word has length 325 [2020-10-19 23:11:35,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:11:35,496 INFO L481 AbstractCegarLoop]: Abstraction has 3896 states and 4277 transitions. [2020-10-19 23:11:35,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:11:35,496 INFO L276 IsEmpty]: Start isEmpty. Operand 3896 states and 4277 transitions. [2020-10-19 23:11:35,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2020-10-19 23:11:35,508 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:11:35,509 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:11:35,722 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-10-19 23:11:35,722 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:11:35,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:11:35,723 INFO L82 PathProgramCache]: Analyzing trace with hash -2014951524, now seen corresponding path program 1 times [2020-10-19 23:11:35,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:11:35,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947591722] [2020-10-19 23:11:35,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:11:35,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:11:36,460 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 467 proven. 65 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-19 23:11:36,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947591722] [2020-10-19 23:11:36,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754625141] [2020-10-19 23:11:36,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:11:36,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:11:36,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 15 conjunts are in the unsatisfiable core [2020-10-19 23:11:36,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:11:36,686 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 23:11:36,690 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-19 23:11:36,690 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:36,691 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-19 23:11:36,693 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-19 23:11:36,696 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:36,699 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-19 23:11:36,702 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:36,704 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-19 23:11:36,716 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-19 23:11:36,720 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:36,721 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:36,722 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-19 23:11:36,725 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-19 23:11:36,727 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:36,729 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:36,731 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:36,732 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:36,733 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-19 23:11:36,736 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-19 23:11:36,737 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:36,739 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-19 23:11:36,742 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:36,743 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:36,744 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-19 23:11:36,752 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-19 23:11:36,757 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:36,758 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:36,761 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-19 23:11:36,766 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-19 23:11:36,770 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:36,771 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:36,773 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-19 23:11:36,777 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-19 23:11:36,782 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:36,784 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:36,785 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-19 23:11:36,788 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-19 23:11:36,789 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:36,794 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:36,795 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:36,797 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-19 23:11:36,799 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-19 23:11:36,801 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:36,803 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:36,804 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:36,806 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-19 23:11:36,810 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-19 23:11:36,815 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:36,816 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:36,817 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-19 23:11:36,819 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-19 23:11:36,820 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:36,823 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:36,824 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:36,825 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-19 23:11:36,828 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-19 23:11:36,830 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:36,832 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:36,833 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:36,834 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-19 23:11:36,839 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-19 23:11:36,843 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-19 23:11:36,844 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:36,845 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-19 23:11:36,846 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-19 23:11:36,851 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:36,853 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-19 23:11:36,856 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:36,857 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-19 23:11:36,860 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:36,861 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:36,862 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-19 23:11:36,865 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-19 23:11:36,866 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:37,306 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 15 [2020-10-19 23:11:37,329 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-19 23:11:37,334 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:37,342 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:37,795 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 168 proven. 320 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-10-19 23:11:37,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 23:11:37,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7] total 11 [2020-10-19 23:11:37,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525093557] [2020-10-19 23:11:37,798 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-19 23:11:37,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:11:37,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-19 23:11:37,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-10-19 23:11:37,798 INFO L87 Difference]: Start difference. First operand 3896 states and 4277 transitions. Second operand 12 states. [2020-10-19 23:11:46,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:11:46,215 INFO L93 Difference]: Finished difference Result 12576 states and 13698 transitions. [2020-10-19 23:11:46,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-19 23:11:46,216 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 419 [2020-10-19 23:11:46,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:11:46,252 INFO L225 Difference]: With dead ends: 12576 [2020-10-19 23:11:46,253 INFO L226 Difference]: Without dead ends: 8821 [2020-10-19 23:11:46,260 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 413 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 555 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=416, Invalid=1306, Unknown=0, NotChecked=0, Total=1722 [2020-10-19 23:11:46,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8821 states. [2020-10-19 23:11:46,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8821 to 4174. [2020-10-19 23:11:46,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4174 states. [2020-10-19 23:11:46,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4174 states to 4174 states and 4581 transitions. [2020-10-19 23:11:46,697 INFO L78 Accepts]: Start accepts. Automaton has 4174 states and 4581 transitions. Word has length 419 [2020-10-19 23:11:46,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:11:46,698 INFO L481 AbstractCegarLoop]: Abstraction has 4174 states and 4581 transitions. [2020-10-19 23:11:46,698 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-19 23:11:46,698 INFO L276 IsEmpty]: Start isEmpty. Operand 4174 states and 4581 transitions. [2020-10-19 23:11:46,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2020-10-19 23:11:46,715 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:11:46,715 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:11:46,930 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:11:46,931 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:11:46,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:11:46,932 INFO L82 PathProgramCache]: Analyzing trace with hash -1839551950, now seen corresponding path program 1 times [2020-10-19 23:11:46,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:11:46,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161368186] [2020-10-19 23:11:46,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:11:47,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:11:47,835 INFO L134 CoverageAnalysis]: Checked inductivity of 802 backedges. 547 proven. 125 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2020-10-19 23:11:47,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161368186] [2020-10-19 23:11:47,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263950451] [2020-10-19 23:11:47,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:11:48,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:11:48,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 707 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 23:11:48,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:11:48,079 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-19 23:11:48,087 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:48,097 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 23:11:48,347 INFO L134 CoverageAnalysis]: Checked inductivity of 802 backedges. 563 proven. 109 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2020-10-19 23:11:48,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 23:11:48,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2020-10-19 23:11:48,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715101388] [2020-10-19 23:11:48,356 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-19 23:11:48,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:11:48,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-19 23:11:48,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-19 23:11:48,358 INFO L87 Difference]: Start difference. First operand 4174 states and 4581 transitions. Second operand 9 states. [2020-10-19 23:11:54,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:11:54,075 INFO L93 Difference]: Finished difference Result 10183 states and 11175 transitions. [2020-10-19 23:11:54,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-19 23:11:54,076 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 533 [2020-10-19 23:11:54,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:11:54,077 INFO L225 Difference]: With dead ends: 10183 [2020-10-19 23:11:54,077 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 23:11:54,086 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 541 GetRequests, 532 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2020-10-19 23:11:54,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 23:11:54,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 23:11:54,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 23:11:54,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 23:11:54,087 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 533 [2020-10-19 23:11:54,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:11:54,087 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 23:11:54,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-19 23:11:54,087 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 23:11:54,088 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 23:11:54,297 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-10-19 23:11:54,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 23:11:54,633 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 324 DAG size of output: 248 [2020-10-19 23:11:54,944 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 321 DAG size of output: 245 [2020-10-19 23:12:00,046 WARN L193 SmtUtils]: Spent 5.10 s on a formula simplification. DAG size of input: 233 DAG size of output: 69 [2020-10-19 23:12:09,481 WARN L193 SmtUtils]: Spent 9.43 s on a formula simplification. DAG size of input: 231 DAG size of output: 69 [2020-10-19 23:12:09,485 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-19 23:12:09,485 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-19 23:12:09,485 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-19 23:12:09,485 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-19 23:12:09,485 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-19 23:12:09,486 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-19 23:12:09,486 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-19 23:12:09,486 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-19 23:12:09,486 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-19 23:12:09,486 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-19 23:12:09,486 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-19 23:12:09,486 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-19 23:12:09,487 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-19 23:12:09,487 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-19 23:12:09,488 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,488 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,488 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,488 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,489 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,489 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,489 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-19 23:12:09,489 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-19 23:12:09,489 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-19 23:12:09,489 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-19 23:12:09,490 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-19 23:12:09,490 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-19 23:12:09,490 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-19 23:12:09,490 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-19 23:12:09,490 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-19 23:12:09,490 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-19 23:12:09,491 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-19 23:12:09,491 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,491 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,491 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,491 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,491 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,492 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-19 23:12:09,492 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-19 23:12:09,492 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-19 23:12:09,492 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-19 23:12:09,492 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-19 23:12:09,492 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-19 23:12:09,492 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-19 23:12:09,492 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-19 23:12:09,492 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-19 23:12:09,492 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-19 23:12:09,492 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-19 23:12:09,493 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-19 23:12:09,493 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-19 23:12:09,493 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-19 23:12:09,493 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,493 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,493 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,493 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,493 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,493 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-19 23:12:09,493 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-19 23:12:09,493 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-19 23:12:09,494 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-19 23:12:09,494 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-19 23:12:09,494 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-19 23:12:09,495 INFO L270 CegarLoopResult]: At program point L575(lines 22 576) the Hoare annotation is: (let ((.cse0 (= ~a10~0 3)) (.cse7 (= ~a19~0 8)) (.cse11 (<= 56 ~a1~0)) (.cse6 (= ~a10~0 4)) (.cse8 (= ~a10~0 0)) (.cse9 (= ~a19~0 9)) (.cse3 (<= ~a1~0 505232)) (.cse4 (<= ~a19~0 9)) (.cse5 (= ~a10~0 1)) (.cse1 (= 14 ~a4~0)) (.cse2 (= ~a12~0 0)) (.cse10 (<= ~a1~0 589865))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 (<= ~a1~0 12) .cse1 .cse2) (and .cse1 .cse2 .cse4 (<= (+ ~a1~0 (div (+ (* ~a1~0 (- 1)) (- 545163)) (- 9)) 39892) 0) .cse6) (and .cse1 (= ~a10~0 2) .cse2 .cse4) (and .cse7 .cse1 .cse2 .cse6 (<= (+ ~a1~0 14285) 0)) (and .cse1 (<= ~a1~0 505271) .cse8 .cse2 .cse4) (and .cse0 .cse1 .cse9 .cse2 .cse10) (and .cse7 .cse5 .cse1 .cse2) (and .cse1 .cse8 .cse2 .cse3) (and .cse1 .cse2 .cse9 .cse3 .cse6) (and .cse5 .cse1 .cse2 .cse3 .cse11) (and (< 218 ~a1~0) .cse7 .cse1 .cse2 .cse6) (and .cse1 .cse2 .cse3 .cse11 .cse4 .cse6) (and .cse1 .cse8 .cse2 .cse9 .cse4) (and .cse5 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse1 (<= 9 ~a19~0) .cse2 (<= 219 ~a1~0) .cse10))) [2020-10-19 23:12:09,495 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-19 23:12:09,495 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-19 23:12:09,495 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-19 23:12:09,495 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-19 23:12:09,495 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,495 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,496 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,496 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,496 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,496 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-19 23:12:09,496 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-19 23:12:09,496 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-19 23:12:09,497 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-19 23:12:09,497 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-19 23:12:09,497 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-19 23:12:09,497 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-19 23:12:09,497 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-19 23:12:09,498 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-19 23:12:09,498 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-19 23:12:09,498 INFO L277 CegarLoopResult]: At program point L578(lines 578 594) the Hoare annotation is: true [2020-10-19 23:12:09,498 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-19 23:12:09,498 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-19 23:12:09,498 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-19 23:12:09,499 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,499 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,499 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,499 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,499 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,500 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-19 23:12:09,500 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-19 23:12:09,500 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-19 23:12:09,500 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-19 23:12:09,500 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-19 23:12:09,500 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-19 23:12:09,500 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-19 23:12:09,501 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-19 23:12:09,501 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 23:12:09,501 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-19 23:12:09,501 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,501 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,501 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,502 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,502 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,502 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-19 23:12:09,502 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-19 23:12:09,502 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-19 23:12:09,502 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-19 23:12:09,503 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-19 23:12:09,503 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-19 23:12:09,503 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-19 23:12:09,503 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-19 23:12:09,503 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-19 23:12:09,503 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-19 23:12:09,504 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-19 23:12:09,504 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-19 23:12:09,504 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse0 (= ~a10~0 3)) (.cse7 (= ~a19~0 8)) (.cse11 (<= 56 ~a1~0)) (.cse6 (= ~a10~0 4)) (.cse8 (= ~a10~0 0)) (.cse9 (= ~a19~0 9)) (.cse3 (<= ~a1~0 505232)) (.cse4 (<= ~a19~0 9)) (.cse5 (= ~a10~0 1)) (.cse1 (= 14 ~a4~0)) (.cse2 (= ~a12~0 0)) (.cse10 (<= ~a1~0 589865))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 (<= ~a1~0 12) .cse1 .cse2) (and .cse1 .cse2 .cse4 (<= (+ ~a1~0 (div (+ (* ~a1~0 (- 1)) (- 545163)) (- 9)) 39892) 0) .cse6) (and .cse1 (= ~a10~0 2) .cse2 .cse4) (and .cse7 .cse1 .cse2 .cse6 (<= (+ ~a1~0 14285) 0)) (and .cse1 (<= ~a1~0 505271) .cse8 .cse2 .cse4) (and .cse0 .cse1 .cse9 .cse2 .cse10) (and .cse7 .cse5 .cse1 .cse2) (and .cse1 .cse8 .cse2 .cse3) (and .cse1 .cse2 .cse9 .cse3 .cse6) (and .cse5 .cse1 .cse2 .cse3 .cse11) (and (< 218 ~a1~0) .cse7 .cse1 .cse2 .cse6) (and .cse1 .cse2 .cse3 .cse11 .cse4 .cse6) (and .cse1 .cse8 .cse2 .cse9 .cse4) (and .cse5 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse1 (<= 9 ~a19~0) .cse2 (<= 219 ~a1~0) .cse10))) [2020-10-19 23:12:09,504 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-19 23:12:09,505 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,505 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,505 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,505 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,505 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-19 23:12:09,505 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,506 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,506 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-19 23:12:09,506 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-19 23:12:09,506 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-19 23:12:09,506 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-19 23:12:09,506 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-19 23:12:09,507 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-19 23:12:09,507 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-19 23:12:09,507 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-19 23:12:09,507 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-19 23:12:09,507 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-19 23:12:09,507 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-19 23:12:09,508 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 23:12:09,508 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-19 23:12:09,508 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-19 23:12:09,508 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,508 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,508 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,508 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,509 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,509 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,509 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-19 23:12:09,509 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-19 23:12:09,509 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-19 23:12:09,509 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-19 23:12:09,510 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-19 23:12:09,510 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-19 23:12:09,510 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-19 23:12:09,510 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-19 23:12:09,510 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-19 23:12:09,510 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-19 23:12:09,511 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-19 23:12:09,511 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-19 23:12:09,511 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 23:12:09,511 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-19 23:12:09,511 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-19 23:12:09,511 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-19 23:12:09,512 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,512 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,512 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,512 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,512 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,512 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,513 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-19 23:12:09,513 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-19 23:12:09,513 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-19 23:12:09,513 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-19 23:12:09,513 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-19 23:12:09,513 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-19 23:12:09,513 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-19 23:12:09,514 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-19 23:12:09,514 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-19 23:12:09,514 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-19 23:12:09,514 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-19 23:12:09,514 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-19 23:12:09,514 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-19 23:12:09,515 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,515 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,515 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,515 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,515 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,515 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-19 23:12:09,516 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,516 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-19 23:12:09,516 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-19 23:12:09,516 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-19 23:12:09,516 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-19 23:12:09,516 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-19 23:12:09,517 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-19 23:12:09,517 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-19 23:12:09,517 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-19 23:12:09,517 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-19 23:12:09,517 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-19 23:12:09,517 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-19 23:12:09,518 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-19 23:12:09,518 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-19 23:12:09,518 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,518 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,518 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,518 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,519 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,519 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:12:09,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 11:12:09 BoogieIcfgContainer [2020-10-19 23:12:09,552 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 23:12:09,552 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 23:12:09,552 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 23:12:09,553 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 23:12:09,554 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:10:54" (3/4) ... [2020-10-19 23:12:09,558 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 23:12:09,586 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-19 23:12:09,587 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-19 23:12:09,589 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 23:12:09,590 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 23:12:09,772 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 23:12:09,772 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 23:12:09,774 INFO L168 Benchmark]: Toolchain (without parser) took 78282.49 ms. Allocated memory was 35.1 MB in the beginning and 407.9 MB in the end (delta: 372.8 MB). Free memory was 10.6 MB in the beginning and 163.0 MB in the end (delta: -152.3 MB). Peak memory consumption was 220.4 MB. Max. memory is 14.3 GB. [2020-10-19 23:12:09,775 INFO L168 Benchmark]: CDTParser took 0.88 ms. Allocated memory is still 33.0 MB. Free memory was 17.5 MB in the beginning and 17.4 MB in the end (delta: 42.2 kB). Peak memory consumption was 42.2 kB. Max. memory is 14.3 GB. [2020-10-19 23:12:09,775 INFO L168 Benchmark]: CACSL2BoogieTranslator took 770.24 ms. Allocated memory was 35.1 MB in the beginning and 46.1 MB in the end (delta: 11.0 MB). Free memory was 9.8 MB in the beginning and 20.0 MB in the end (delta: -10.3 MB). Peak memory consumption was 9.5 MB. Max. memory is 14.3 GB. [2020-10-19 23:12:09,776 INFO L168 Benchmark]: Boogie Procedure Inliner took 115.78 ms. Allocated memory was 46.1 MB in the beginning and 46.7 MB in the end (delta: 524.3 kB). Free memory was 20.0 MB in the beginning and 24.9 MB in the end (delta: -4.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 14.3 GB. [2020-10-19 23:12:09,776 INFO L168 Benchmark]: Boogie Preprocessor took 86.02 ms. Allocated memory is still 46.7 MB. Free memory was 24.9 MB in the beginning and 19.3 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 14.3 GB. [2020-10-19 23:12:09,777 INFO L168 Benchmark]: RCFGBuilder took 1542.73 ms. Allocated memory was 46.7 MB in the beginning and 59.2 MB in the end (delta: 12.6 MB). Free memory was 19.3 MB in the beginning and 16.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 16.1 MB. Max. memory is 14.3 GB. [2020-10-19 23:12:09,777 INFO L168 Benchmark]: TraceAbstraction took 75535.47 ms. Allocated memory was 59.2 MB in the beginning and 407.9 MB in the end (delta: 348.7 MB). Free memory was 15.7 MB in the beginning and 183.9 MB in the end (delta: -168.2 MB). Peak memory consumption was 329.5 MB. Max. memory is 14.3 GB. [2020-10-19 23:12:09,778 INFO L168 Benchmark]: Witness Printer took 220.29 ms. Allocated memory is still 407.9 MB. Free memory was 183.9 MB in the beginning and 163.0 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 14.3 GB. [2020-10-19 23:12:09,781 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.88 ms. Allocated memory is still 33.0 MB. Free memory was 17.5 MB in the beginning and 17.4 MB in the end (delta: 42.2 kB). Peak memory consumption was 42.2 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 770.24 ms. Allocated memory was 35.1 MB in the beginning and 46.1 MB in the end (delta: 11.0 MB). Free memory was 9.8 MB in the beginning and 20.0 MB in the end (delta: -10.3 MB). Peak memory consumption was 9.5 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 115.78 ms. Allocated memory was 46.1 MB in the beginning and 46.7 MB in the end (delta: 524.3 kB). Free memory was 20.0 MB in the beginning and 24.9 MB in the end (delta: -4.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 86.02 ms. Allocated memory is still 46.7 MB. Free memory was 24.9 MB in the beginning and 19.3 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1542.73 ms. Allocated memory was 46.7 MB in the beginning and 59.2 MB in the end (delta: 12.6 MB). Free memory was 19.3 MB in the beginning and 16.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 16.1 MB. Max. memory is 14.3 GB. * TraceAbstraction took 75535.47 ms. Allocated memory was 59.2 MB in the beginning and 407.9 MB in the end (delta: 348.7 MB). Free memory was 15.7 MB in the beginning and 183.9 MB in the end (delta: -168.2 MB). Peak memory consumption was 329.5 MB. Max. memory is 14.3 GB. * Witness Printer took 220.29 ms. Allocated memory is still 407.9 MB. Free memory was 183.9 MB in the beginning and 163.0 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 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 == 3 && 14 == a4) && a12 == 0) && a1 <= 505232) && a19 <= 9) || (((a10 == 1 && a1 <= 12) && 14 == a4) && a12 == 0)) || ((((14 == a4 && a12 == 0) && a19 <= 9) && a1 + (a1 * -1 + -545163) / -9 + 39892 <= 0) && a10 == 4)) || (((14 == a4 && a10 == 2) && a12 == 0) && a19 <= 9)) || ((((a19 == 8 && 14 == a4) && a12 == 0) && a10 == 4) && a1 + 14285 <= 0)) || ((((14 == a4 && a1 <= 505271) && a10 == 0) && a12 == 0) && a19 <= 9)) || ((((a10 == 3 && 14 == a4) && a19 == 9) && a12 == 0) && a1 <= 589865)) || (((a19 == 8 && a10 == 1) && 14 == a4) && a12 == 0)) || (((14 == a4 && a10 == 0) && a12 == 0) && a1 <= 505232)) || ((((14 == a4 && a12 == 0) && a19 == 9) && a1 <= 505232) && a10 == 4)) || ((((a10 == 1 && 14 == a4) && a12 == 0) && a1 <= 505232) && 56 <= a1)) || ((((218 < a1 && a19 == 8) && 14 == a4) && a12 == 0) && a10 == 4)) || (((((14 == a4 && a12 == 0) && a1 <= 505232) && 56 <= a1) && a19 <= 9) && a10 == 4)) || ((((14 == a4 && a10 == 0) && a12 == 0) && a19 == 9) && a19 <= 9)) || ((((a10 == 1 && 14 == a4) && a12 == 0) && a1 <= 505232) && a19 <= 9)) || (((((a10 == 1 && 14 == a4) && 9 <= a19) && a12 == 0) && 219 <= a1) && a1 <= 589865) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((((((((((((((((((a10 == 3 && 14 == a4) && a12 == 0) && a1 <= 505232) && a19 <= 9) || (((a10 == 1 && a1 <= 12) && 14 == a4) && a12 == 0)) || ((((14 == a4 && a12 == 0) && a19 <= 9) && a1 + (a1 * -1 + -545163) / -9 + 39892 <= 0) && a10 == 4)) || (((14 == a4 && a10 == 2) && a12 == 0) && a19 <= 9)) || ((((a19 == 8 && 14 == a4) && a12 == 0) && a10 == 4) && a1 + 14285 <= 0)) || ((((14 == a4 && a1 <= 505271) && a10 == 0) && a12 == 0) && a19 <= 9)) || ((((a10 == 3 && 14 == a4) && a19 == 9) && a12 == 0) && a1 <= 589865)) || (((a19 == 8 && a10 == 1) && 14 == a4) && a12 == 0)) || (((14 == a4 && a10 == 0) && a12 == 0) && a1 <= 505232)) || ((((14 == a4 && a12 == 0) && a19 == 9) && a1 <= 505232) && a10 == 4)) || ((((a10 == 1 && 14 == a4) && a12 == 0) && a1 <= 505232) && 56 <= a1)) || ((((218 < a1 && a19 == 8) && 14 == a4) && a12 == 0) && a10 == 4)) || (((((14 == a4 && a12 == 0) && a1 <= 505232) && 56 <= a1) && a19 <= 9) && a10 == 4)) || ((((14 == a4 && a10 == 0) && a12 == 0) && a19 == 9) && a19 <= 9)) || ((((a10 == 1 && 14 == a4) && a12 == 0) && a1 <= 505232) && a19 <= 9)) || (((((a10 == 1 && 14 == a4) && 9 <= a19) && a12 == 0) && 219 <= a1) && a1 <= 589865) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 60.2s, OverallIterations: 13, TraceHistogramMax: 5, AutomataDifference: 48.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 15.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1094 SDtfs, 4092 SDslu, 226 SDs, 0 SdLazy, 12601 SolverSat, 1851 SolverUnsat, 10 SolverUnknown, 0 SolverNotchecked, 40.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1843 GetRequests, 1764 SyntacticMatches, 3 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 580 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4174occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 13 MinimizatonAttempts, 6454 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 105 NumberOfFragments, 525 HoareAnnotationTreeSize, 3 FomulaSimplifications, 43610 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 3 FomulaSimplificationsInter, 14477 FormulaSimplificationTreeSizeReductionInter, 14.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 6.0s InterpolantComputationTime, 4631 NumberOfCodeBlocks, 4631 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 4613 ConstructedInterpolants, 22 QuantifiedInterpolants, 9637317 SizeOfPredicates, 10 NumberOfNonLiveVariables, 2493 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 18 InterpolantComputations, 9 PerfectInterpolantSequences, 3508/4490 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...