./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label24.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_bbf69287-8f32-4ed7-9427-d24461567326/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_bbf69287-8f32-4ed7-9427-d24461567326/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bbf69287-8f32-4ed7-9427-d24461567326/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bbf69287-8f32-4ed7-9427-d24461567326/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label24.c -s /tmp/vcloud-vcloud-master/worker/run_dir_bbf69287-8f32-4ed7-9427-d24461567326/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bbf69287-8f32-4ed7-9427-d24461567326/bin/uautomizer --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 9e6cb12e8c28b48932c83bb2f75d9445aafe92d9 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 22:13:20,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:13:20,234 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:13:20,289 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:13:20,293 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:13:20,295 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:13:20,299 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:13:20,306 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:13:20,310 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:13:20,312 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:13:20,314 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:13:20,318 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:13:20,319 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:13:20,323 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:13:20,325 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:13:20,327 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:13:20,328 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:13:20,329 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:13:20,332 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:13:20,334 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:13:20,336 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:13:20,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:13:20,346 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:13:20,347 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:13:20,353 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:13:20,354 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:13:20,354 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:13:20,356 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:13:20,356 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:13:20,358 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:13:20,358 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:13:20,359 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:13:20,361 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:13:20,362 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:13:20,363 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:13:20,364 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:13:20,365 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:13:20,365 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:13:20,366 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:13:20,367 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:13:20,375 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:13:20,380 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bbf69287-8f32-4ed7-9427-d24461567326/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 22:13:20,438 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:13:20,438 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:13:20,440 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:13:20,440 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:13:20,440 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:13:20,441 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:13:20,441 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:13:20,441 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:13:20,442 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:13:20,442 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:13:20,442 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 22:13:20,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 22:13:20,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 22:13:20,443 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:13:20,443 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:13:20,444 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:13:20,444 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 22:13:20,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:13:20,445 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:13:20,445 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 22:13:20,445 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 22:13:20,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 22:13:20,446 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:13:20,446 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 22:13:20,447 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 22:13:20,447 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:13:20,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 22:13:20,448 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 22:13:20,448 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:13:20,448 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_bbf69287-8f32-4ed7-9427-d24461567326/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_bbf69287-8f32-4ed7-9427-d24461567326/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e6cb12e8c28b48932c83bb2f75d9445aafe92d9 [2020-11-29 22:13:20,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:13:20,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:13:20,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:13:20,796 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:13:20,797 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:13:20,799 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bbf69287-8f32-4ed7-9427-d24461567326/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem11_label24.c [2020-11-29 22:13:20,878 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bbf69287-8f32-4ed7-9427-d24461567326/bin/uautomizer/data/6c24a6b0b/c41c2e0fe5104bf5ad0952ed000745e6/FLAG8633d2e60 [2020-11-29 22:13:21,593 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:13:21,594 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bbf69287-8f32-4ed7-9427-d24461567326/sv-benchmarks/c/eca-rers2012/Problem11_label24.c [2020-11-29 22:13:21,616 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bbf69287-8f32-4ed7-9427-d24461567326/bin/uautomizer/data/6c24a6b0b/c41c2e0fe5104bf5ad0952ed000745e6/FLAG8633d2e60 [2020-11-29 22:13:21,753 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bbf69287-8f32-4ed7-9427-d24461567326/bin/uautomizer/data/6c24a6b0b/c41c2e0fe5104bf5ad0952ed000745e6 [2020-11-29 22:13:21,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:13:21,757 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:13:21,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:13:21,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:13:21,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:13:21,764 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:13:21" (1/1) ... [2020-11-29 22:13:21,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b8b4739 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:13:21, skipping insertion in model container [2020-11-29 22:13:21,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:13:21" (1/1) ... [2020-11-29 22:13:21,775 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:13:21,861 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:13:22,463 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:13:22,475 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:13:22,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:13:22,789 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:13:22,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:13:22 WrapperNode [2020-11-29 22:13:22,790 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:13:22,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:13:22,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:13:22,792 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:13:22,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:13:22" (1/1) ... [2020-11-29 22:13:22,857 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:13:22" (1/1) ... [2020-11-29 22:13:22,983 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:13:22,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:13:22,985 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:13:22,986 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:13:22,996 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:13:22" (1/1) ... [2020-11-29 22:13:22,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:13:22" (1/1) ... [2020-11-29 22:13:23,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:13:22" (1/1) ... [2020-11-29 22:13:23,015 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:13:22" (1/1) ... [2020-11-29 22:13:23,087 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:13:22" (1/1) ... [2020-11-29 22:13:23,117 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:13:22" (1/1) ... [2020-11-29 22:13:23,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:13:22" (1/1) ... [2020-11-29 22:13:23,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:13:23,169 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:13:23,170 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:13:23,170 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:13:23,172 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:13:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bbf69287-8f32-4ed7-9427-d24461567326/bin/uautomizer/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 [2020-11-29 22:13:23,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 22:13:23,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:13:23,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:13:23,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:13:25,528 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:13:25,529 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 22:13:25,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:13:25 BoogieIcfgContainer [2020-11-29 22:13:25,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:13:25,536 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 22:13:25,537 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 22:13:25,542 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 22:13:25,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 10:13:21" (1/3) ... [2020-11-29 22:13:25,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aaef979 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:13:25, skipping insertion in model container [2020-11-29 22:13:25,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:13:22" (2/3) ... [2020-11-29 22:13:25,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aaef979 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:13:25, skipping insertion in model container [2020-11-29 22:13:25,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:13:25" (3/3) ... [2020-11-29 22:13:25,546 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label24.c [2020-11-29 22:13:25,565 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 22:13:25,571 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 22:13:25,584 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 22:13:25,619 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 22:13:25,620 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 22:13:25,620 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 22:13:25,620 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:13:25,620 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:13:25,620 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 22:13:25,621 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:13:25,621 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 22:13:25,655 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states. [2020-11-29 22:13:25,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-29 22:13:25,675 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:13:25,677 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:13:25,677 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:13:25,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:13:25,686 INFO L82 PathProgramCache]: Analyzing trace with hash 2122806209, now seen corresponding path program 1 times [2020-11-29 22:13:25,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:13:25,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844158960] [2020-11-29 22:13:25,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:13:25,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:13:26,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:13:26,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844158960] [2020-11-29 22:13:26,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:13:26,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:13:26,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927103650] [2020-11-29 22:13:26,140 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:13:26,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:13:26,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:13:26,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:13:26,163 INFO L87 Difference]: Start difference. First operand 284 states. Second operand 3 states. [2020-11-29 22:13:27,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:13:27,975 INFO L93 Difference]: Finished difference Result 762 states and 1346 transitions. [2020-11-29 22:13:27,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:13:27,982 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-11-29 22:13:27,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:13:28,016 INFO L225 Difference]: With dead ends: 762 [2020-11-29 22:13:28,025 INFO L226 Difference]: Without dead ends: 413 [2020-11-29 22:13:28,031 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 [2020-11-29 22:13:28,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-11-29 22:13:28,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2020-11-29 22:13:28,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2020-11-29 22:13:28,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 599 transitions. [2020-11-29 22:13:28,111 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 599 transitions. Word has length 51 [2020-11-29 22:13:28,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:13:28,112 INFO L481 AbstractCegarLoop]: Abstraction has 413 states and 599 transitions. [2020-11-29 22:13:28,113 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:13:28,113 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 599 transitions. [2020-11-29 22:13:28,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-11-29 22:13:28,120 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:13:28,121 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-29 22:13:28,121 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 22:13:28,121 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:13:28,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:13:28,123 INFO L82 PathProgramCache]: Analyzing trace with hash -2027554778, now seen corresponding path program 1 times [2020-11-29 22:13:28,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:13:28,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095480907] [2020-11-29 22:13:28,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:13:28,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:13:28,350 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:13:28,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095480907] [2020-11-29 22:13:28,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:13:28,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:13:28,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277409242] [2020-11-29 22:13:28,353 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:13:28,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:13:28,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:13:28,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:13:28,355 INFO L87 Difference]: Start difference. First operand 413 states and 599 transitions. Second operand 3 states. [2020-11-29 22:13:29,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:13:29,585 INFO L93 Difference]: Finished difference Result 1211 states and 1763 transitions. [2020-11-29 22:13:29,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:13:29,588 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2020-11-29 22:13:29,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:13:29,595 INFO L225 Difference]: With dead ends: 1211 [2020-11-29 22:13:29,595 INFO L226 Difference]: Without dead ends: 800 [2020-11-29 22:13:29,597 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 [2020-11-29 22:13:29,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2020-11-29 22:13:29,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 789. [2020-11-29 22:13:29,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 789 states. [2020-11-29 22:13:29,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1084 transitions. [2020-11-29 22:13:29,671 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1084 transitions. Word has length 119 [2020-11-29 22:13:29,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:13:29,672 INFO L481 AbstractCegarLoop]: Abstraction has 789 states and 1084 transitions. [2020-11-29 22:13:29,672 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:13:29,684 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1084 transitions. [2020-11-29 22:13:29,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-11-29 22:13:29,696 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:13:29,696 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-29 22:13:29,697 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 22:13:29,697 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:13:29,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:13:29,699 INFO L82 PathProgramCache]: Analyzing trace with hash 909359368, now seen corresponding path program 1 times [2020-11-29 22:13:29,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:13:29,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459909929] [2020-11-29 22:13:29,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:13:29,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:13:29,897 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:13:29,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459909929] [2020-11-29 22:13:29,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:13:29,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:13:29,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087241746] [2020-11-29 22:13:29,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:13:29,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:13:29,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:13:29,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:13:29,912 INFO L87 Difference]: Start difference. First operand 789 states and 1084 transitions. Second operand 3 states. [2020-11-29 22:13:31,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:13:31,161 INFO L93 Difference]: Finished difference Result 2314 states and 3184 transitions. [2020-11-29 22:13:31,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:13:31,161 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2020-11-29 22:13:31,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:13:31,171 INFO L225 Difference]: With dead ends: 2314 [2020-11-29 22:13:31,171 INFO L226 Difference]: Without dead ends: 1527 [2020-11-29 22:13:31,174 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 [2020-11-29 22:13:31,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2020-11-29 22:13:31,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 1526. [2020-11-29 22:13:31,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1526 states. [2020-11-29 22:13:31,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 1857 transitions. [2020-11-29 22:13:31,218 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 1857 transitions. Word has length 120 [2020-11-29 22:13:31,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:13:31,219 INFO L481 AbstractCegarLoop]: Abstraction has 1526 states and 1857 transitions. [2020-11-29 22:13:31,219 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:13:31,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 1857 transitions. [2020-11-29 22:13:31,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-11-29 22:13:31,227 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:13:31,228 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:13:31,228 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 22:13:31,228 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:13:31,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:13:31,229 INFO L82 PathProgramCache]: Analyzing trace with hash -858520947, now seen corresponding path program 1 times [2020-11-29 22:13:31,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:13:31,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745335000] [2020-11-29 22:13:31,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:13:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:13:31,541 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:13:31,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745335000] [2020-11-29 22:13:31,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:13:31,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:13:31,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916038413] [2020-11-29 22:13:31,542 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 22:13:31,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:13:31,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 22:13:31,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:13:31,543 INFO L87 Difference]: Start difference. First operand 1526 states and 1857 transitions. Second operand 4 states. [2020-11-29 22:13:33,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:13:33,871 INFO L93 Difference]: Finished difference Result 4184 states and 5343 transitions. [2020-11-29 22:13:33,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 22:13:33,872 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 178 [2020-11-29 22:13:33,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:13:33,890 INFO L225 Difference]: With dead ends: 4184 [2020-11-29 22:13:33,891 INFO L226 Difference]: Without dead ends: 2844 [2020-11-29 22:13:33,893 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:13:33,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2844 states. [2020-11-29 22:13:33,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2844 to 2843. [2020-11-29 22:13:33,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2843 states. [2020-11-29 22:13:33,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2843 states to 2843 states and 3571 transitions. [2020-11-29 22:13:33,981 INFO L78 Accepts]: Start accepts. Automaton has 2843 states and 3571 transitions. Word has length 178 [2020-11-29 22:13:33,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:13:33,983 INFO L481 AbstractCegarLoop]: Abstraction has 2843 states and 3571 transitions. [2020-11-29 22:13:33,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 22:13:33,984 INFO L276 IsEmpty]: Start isEmpty. Operand 2843 states and 3571 transitions. [2020-11-29 22:13:33,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-11-29 22:13:33,992 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:13:33,993 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:13:33,993 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 22:13:33,993 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:13:33,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:13:33,994 INFO L82 PathProgramCache]: Analyzing trace with hash 814940615, now seen corresponding path program 1 times [2020-11-29 22:13:33,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:13:33,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559794724] [2020-11-29 22:13:33,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:13:34,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:13:34,221 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:13:34,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559794724] [2020-11-29 22:13:34,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:13:34,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:13:34,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836544127] [2020-11-29 22:13:34,224 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:13:34,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:13:34,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:13:34,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:13:34,225 INFO L87 Difference]: Start difference. First operand 2843 states and 3571 transitions. Second operand 3 states. [2020-11-29 22:13:35,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:13:35,757 INFO L93 Difference]: Finished difference Result 6621 states and 8494 transitions. [2020-11-29 22:13:35,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:13:35,758 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2020-11-29 22:13:35,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:13:35,786 INFO L225 Difference]: With dead ends: 6621 [2020-11-29 22:13:35,786 INFO L226 Difference]: Without dead ends: 4148 [2020-11-29 22:13:35,791 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 [2020-11-29 22:13:35,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4148 states. [2020-11-29 22:13:35,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4148 to 3949. [2020-11-29 22:13:35,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3949 states. [2020-11-29 22:13:35,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3949 states to 3949 states and 4869 transitions. [2020-11-29 22:13:35,908 INFO L78 Accepts]: Start accepts. Automaton has 3949 states and 4869 transitions. Word has length 231 [2020-11-29 22:13:35,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:13:35,909 INFO L481 AbstractCegarLoop]: Abstraction has 3949 states and 4869 transitions. [2020-11-29 22:13:35,909 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:13:35,910 INFO L276 IsEmpty]: Start isEmpty. Operand 3949 states and 4869 transitions. [2020-11-29 22:13:35,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-11-29 22:13:35,915 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:13:35,915 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:13:35,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 22:13:35,916 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:13:35,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:13:35,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1167596665, now seen corresponding path program 1 times [2020-11-29 22:13:35,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:13:35,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586020486] [2020-11-29 22:13:35,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:13:36,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:13:36,249 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:13:36,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586020486] [2020-11-29 22:13:36,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:13:36,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 22:13:36,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688601928] [2020-11-29 22:13:36,253 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 22:13:36,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:13:36,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 22:13:36,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:13:36,256 INFO L87 Difference]: Start difference. First operand 3949 states and 4869 transitions. Second operand 4 states. [2020-11-29 22:13:39,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:13:39,104 INFO L93 Difference]: Finished difference Result 11230 states and 14373 transitions. [2020-11-29 22:13:39,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 22:13:39,105 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 232 [2020-11-29 22:13:39,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:13:39,158 INFO L225 Difference]: With dead ends: 11230 [2020-11-29 22:13:39,158 INFO L226 Difference]: Without dead ends: 7651 [2020-11-29 22:13:39,164 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:13:39,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7651 states. [2020-11-29 22:13:39,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7651 to 7269. [2020-11-29 22:13:39,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7269 states. [2020-11-29 22:13:39,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7269 states to 7269 states and 9054 transitions. [2020-11-29 22:13:39,384 INFO L78 Accepts]: Start accepts. Automaton has 7269 states and 9054 transitions. Word has length 232 [2020-11-29 22:13:39,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:13:39,390 INFO L481 AbstractCegarLoop]: Abstraction has 7269 states and 9054 transitions. [2020-11-29 22:13:39,390 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 22:13:39,390 INFO L276 IsEmpty]: Start isEmpty. Operand 7269 states and 9054 transitions. [2020-11-29 22:13:39,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-11-29 22:13:39,396 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:13:39,397 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:13:39,397 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 22:13:39,397 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:13:39,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:13:39,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1125724532, now seen corresponding path program 1 times [2020-11-29 22:13:39,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:13:39,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720900928] [2020-11-29 22:13:39,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:13:39,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:13:39,616 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-11-29 22:13:39,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720900928] [2020-11-29 22:13:39,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:13:39,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:13:39,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914254858] [2020-11-29 22:13:39,618 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:13:39,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:13:39,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:13:39,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:13:39,621 INFO L87 Difference]: Start difference. First operand 7269 states and 9054 transitions. Second operand 3 states. [2020-11-29 22:13:41,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:13:41,217 INFO L93 Difference]: Finished difference Result 16389 states and 20626 transitions. [2020-11-29 22:13:41,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:13:41,218 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 233 [2020-11-29 22:13:41,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:13:41,277 INFO L225 Difference]: With dead ends: 16389 [2020-11-29 22:13:41,278 INFO L226 Difference]: Without dead ends: 9490 [2020-11-29 22:13:41,288 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 [2020-11-29 22:13:41,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9490 states. [2020-11-29 22:13:41,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9490 to 9293. [2020-11-29 22:13:41,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9293 states. [2020-11-29 22:13:41,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9293 states to 9293 states and 11372 transitions. [2020-11-29 22:13:41,517 INFO L78 Accepts]: Start accepts. Automaton has 9293 states and 11372 transitions. Word has length 233 [2020-11-29 22:13:41,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:13:41,517 INFO L481 AbstractCegarLoop]: Abstraction has 9293 states and 11372 transitions. [2020-11-29 22:13:41,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:13:41,518 INFO L276 IsEmpty]: Start isEmpty. Operand 9293 states and 11372 transitions. [2020-11-29 22:13:41,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-11-29 22:13:41,524 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:13:41,524 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-29 22:13:41,525 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 22:13:41,525 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:13:41,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:13:41,525 INFO L82 PathProgramCache]: Analyzing trace with hash -268130958, now seen corresponding path program 1 times [2020-11-29 22:13:41,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:13:41,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382126350] [2020-11-29 22:13:41,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:13:41,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:13:41,809 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:13:41,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382126350] [2020-11-29 22:13:41,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:13:41,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:13:41,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535110316] [2020-11-29 22:13:41,811 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 22:13:41,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:13:41,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 22:13:41,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:13:41,812 INFO L87 Difference]: Start difference. First operand 9293 states and 11372 transitions. Second operand 4 states. [2020-11-29 22:13:44,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:13:44,376 INFO L93 Difference]: Finished difference Result 20806 states and 25638 transitions. [2020-11-29 22:13:44,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 22:13:44,378 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 243 [2020-11-29 22:13:44,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:13:44,417 INFO L225 Difference]: With dead ends: 20806 [2020-11-29 22:13:44,417 INFO L226 Difference]: Without dead ends: 11883 [2020-11-29 22:13:44,432 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:13:44,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11883 states. [2020-11-29 22:13:44,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11883 to 11691. [2020-11-29 22:13:44,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11691 states. [2020-11-29 22:13:44,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11691 states to 11691 states and 14067 transitions. [2020-11-29 22:13:44,687 INFO L78 Accepts]: Start accepts. Automaton has 11691 states and 14067 transitions. Word has length 243 [2020-11-29 22:13:44,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:13:44,688 INFO L481 AbstractCegarLoop]: Abstraction has 11691 states and 14067 transitions. [2020-11-29 22:13:44,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 22:13:44,688 INFO L276 IsEmpty]: Start isEmpty. Operand 11691 states and 14067 transitions. [2020-11-29 22:13:44,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2020-11-29 22:13:44,695 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:13:44,696 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-29 22:13:44,696 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 22:13:44,696 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:13:44,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:13:44,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1119558206, now seen corresponding path program 1 times [2020-11-29 22:13:44,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:13:44,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360929089] [2020-11-29 22:13:44,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:13:44,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:13:44,898 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2020-11-29 22:13:44,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360929089] [2020-11-29 22:13:44,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:13:44,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:13:44,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386631020] [2020-11-29 22:13:44,900 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:13:44,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:13:44,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:13:44,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:13:44,901 INFO L87 Difference]: Start difference. First operand 11691 states and 14067 transitions. Second operand 3 states. [2020-11-29 22:13:46,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:13:46,233 INFO L93 Difference]: Finished difference Result 24135 states and 29233 transitions. [2020-11-29 22:13:46,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:13:46,234 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 253 [2020-11-29 22:13:46,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:13:46,268 INFO L225 Difference]: With dead ends: 24135 [2020-11-29 22:13:46,268 INFO L226 Difference]: Without dead ends: 14477 [2020-11-29 22:13:46,283 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 [2020-11-29 22:13:46,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14477 states. [2020-11-29 22:13:46,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14477 to 13715. [2020-11-29 22:13:46,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13715 states. [2020-11-29 22:13:46,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13715 states to 13715 states and 16396 transitions. [2020-11-29 22:13:46,535 INFO L78 Accepts]: Start accepts. Automaton has 13715 states and 16396 transitions. Word has length 253 [2020-11-29 22:13:46,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:13:46,536 INFO L481 AbstractCegarLoop]: Abstraction has 13715 states and 16396 transitions. [2020-11-29 22:13:46,536 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:13:46,536 INFO L276 IsEmpty]: Start isEmpty. Operand 13715 states and 16396 transitions. [2020-11-29 22:13:46,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2020-11-29 22:13:46,546 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:13:46,546 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-29 22:13:46,546 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-29 22:13:46,547 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:13:46,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:13:46,547 INFO L82 PathProgramCache]: Analyzing trace with hash -291464271, now seen corresponding path program 1 times [2020-11-29 22:13:46,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:13:46,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523198556] [2020-11-29 22:13:46,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:13:46,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:13:46,831 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2020-11-29 22:13:46,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523198556] [2020-11-29 22:13:46,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:13:46,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:13:46,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760367611] [2020-11-29 22:13:46,833 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:13:46,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:13:46,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:13:46,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:13:46,835 INFO L87 Difference]: Start difference. First operand 13715 states and 16396 transitions. Second operand 3 states. [2020-11-29 22:13:48,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:13:48,356 INFO L93 Difference]: Finished difference Result 31288 states and 37843 transitions. [2020-11-29 22:13:48,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:13:48,358 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 281 [2020-11-29 22:13:48,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:13:48,463 INFO L225 Difference]: With dead ends: 31288 [2020-11-29 22:13:48,464 INFO L226 Difference]: Without dead ends: 17944 [2020-11-29 22:13:48,481 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 [2020-11-29 22:13:48,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17944 states. [2020-11-29 22:13:48,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17944 to 17207. [2020-11-29 22:13:48,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17207 states. [2020-11-29 22:13:48,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17207 states to 17207 states and 20514 transitions. [2020-11-29 22:13:48,757 INFO L78 Accepts]: Start accepts. Automaton has 17207 states and 20514 transitions. Word has length 281 [2020-11-29 22:13:48,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:13:48,758 INFO L481 AbstractCegarLoop]: Abstraction has 17207 states and 20514 transitions. [2020-11-29 22:13:48,759 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:13:48,759 INFO L276 IsEmpty]: Start isEmpty. Operand 17207 states and 20514 transitions. [2020-11-29 22:13:48,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-11-29 22:13:48,769 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:13:48,770 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-29 22:13:48,770 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-29 22:13:48,770 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:13:48,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:13:48,771 INFO L82 PathProgramCache]: Analyzing trace with hash 291903288, now seen corresponding path program 1 times [2020-11-29 22:13:48,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:13:48,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511217823] [2020-11-29 22:13:48,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:13:48,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:13:49,014 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2020-11-29 22:13:49,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511217823] [2020-11-29 22:13:49,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:13:49,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:13:49,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124728306] [2020-11-29 22:13:49,016 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:13:49,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:13:49,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:13:49,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:13:49,018 INFO L87 Difference]: Start difference. First operand 17207 states and 20514 transitions. Second operand 3 states. [2020-11-29 22:13:50,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:13:50,492 INFO L93 Difference]: Finished difference Result 34419 states and 41034 transitions. [2020-11-29 22:13:50,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:13:50,493 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 284 [2020-11-29 22:13:50,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:13:50,539 INFO L225 Difference]: With dead ends: 34419 [2020-11-29 22:13:50,540 INFO L226 Difference]: Without dead ends: 17398 [2020-11-29 22:13:50,568 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 [2020-11-29 22:13:50,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17398 states. [2020-11-29 22:13:50,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17398 to 17022. [2020-11-29 22:13:50,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17022 states. [2020-11-29 22:13:50,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17022 states to 17022 states and 19759 transitions. [2020-11-29 22:13:50,941 INFO L78 Accepts]: Start accepts. Automaton has 17022 states and 19759 transitions. Word has length 284 [2020-11-29 22:13:50,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:13:50,942 INFO L481 AbstractCegarLoop]: Abstraction has 17022 states and 19759 transitions. [2020-11-29 22:13:50,942 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:13:50,943 INFO L276 IsEmpty]: Start isEmpty. Operand 17022 states and 19759 transitions. [2020-11-29 22:13:50,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2020-11-29 22:13:50,954 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:13:50,955 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:13:50,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-29 22:13:50,955 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:13:50,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:13:50,956 INFO L82 PathProgramCache]: Analyzing trace with hash -362978187, now seen corresponding path program 1 times [2020-11-29 22:13:50,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:13:50,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558629542] [2020-11-29 22:13:50,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:13:51,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:13:51,187 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2020-11-29 22:13:51,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558629542] [2020-11-29 22:13:51,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:13:51,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:13:51,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091202911] [2020-11-29 22:13:51,193 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:13:51,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:13:51,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:13:51,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:13:51,194 INFO L87 Difference]: Start difference. First operand 17022 states and 19759 transitions. Second operand 3 states. [2020-11-29 22:13:52,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:13:52,803 INFO L93 Difference]: Finished difference Result 38847 states and 45533 transitions. [2020-11-29 22:13:52,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:13:52,803 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 310 [2020-11-29 22:13:52,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:13:52,857 INFO L225 Difference]: With dead ends: 38847 [2020-11-29 22:13:52,857 INFO L226 Difference]: Without dead ends: 22196 [2020-11-29 22:13:52,870 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 [2020-11-29 22:13:52,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22196 states. [2020-11-29 22:13:53,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22196 to 22191. [2020-11-29 22:13:53,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22191 states. [2020-11-29 22:13:53,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22191 states to 22191 states and 25712 transitions. [2020-11-29 22:13:53,207 INFO L78 Accepts]: Start accepts. Automaton has 22191 states and 25712 transitions. Word has length 310 [2020-11-29 22:13:53,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:13:53,208 INFO L481 AbstractCegarLoop]: Abstraction has 22191 states and 25712 transitions. [2020-11-29 22:13:53,208 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:13:53,208 INFO L276 IsEmpty]: Start isEmpty. Operand 22191 states and 25712 transitions. [2020-11-29 22:13:53,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2020-11-29 22:13:53,222 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:13:53,222 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:13:53,223 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-29 22:13:53,223 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:13:53,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:13:53,224 INFO L82 PathProgramCache]: Analyzing trace with hash -1072249156, now seen corresponding path program 1 times [2020-11-29 22:13:53,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:13:53,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675868494] [2020-11-29 22:13:53,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:13:53,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:13:53,616 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:13:53,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675868494] [2020-11-29 22:13:53,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:13:53,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 22:13:53,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161151421] [2020-11-29 22:13:53,618 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 22:13:53,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:13:53,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 22:13:53,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:13:53,619 INFO L87 Difference]: Start difference. First operand 22191 states and 25712 transitions. Second operand 4 states. [2020-11-29 22:13:56,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:13:56,292 INFO L93 Difference]: Finished difference Result 50458 states and 58686 transitions. [2020-11-29 22:13:56,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 22:13:56,297 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 320 [2020-11-29 22:13:56,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:13:56,355 INFO L225 Difference]: With dead ends: 50458 [2020-11-29 22:13:56,355 INFO L226 Difference]: Without dead ends: 28638 [2020-11-29 22:13:56,375 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:13:56,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28638 states. [2020-11-29 22:13:56,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28638 to 28630. [2020-11-29 22:13:56,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28630 states. [2020-11-29 22:13:56,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28630 states to 28630 states and 32872 transitions. [2020-11-29 22:13:56,925 INFO L78 Accepts]: Start accepts. Automaton has 28630 states and 32872 transitions. Word has length 320 [2020-11-29 22:13:56,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:13:56,926 INFO L481 AbstractCegarLoop]: Abstraction has 28630 states and 32872 transitions. [2020-11-29 22:13:56,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 22:13:56,926 INFO L276 IsEmpty]: Start isEmpty. Operand 28630 states and 32872 transitions. [2020-11-29 22:13:56,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2020-11-29 22:13:56,937 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:13:56,938 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:13:56,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-29 22:13:56,938 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:13:56,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:13:56,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1811502598, now seen corresponding path program 1 times [2020-11-29 22:13:56,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:13:56,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482391312] [2020-11-29 22:13:56,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:13:57,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:13:57,439 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 227 proven. 137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:13:57,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482391312] [2020-11-29 22:13:57,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [809359602] [2020-11-29 22:13:57,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bbf69287-8f32-4ed7-9427-d24461567326/bin/uautomizer/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 [2020-11-29 22:13:57,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:13:57,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 22:13:57,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:13:57,996 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 283 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-11-29 22:13:57,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 22:13:57,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-11-29 22:13:57,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513815270] [2020-11-29 22:13:57,998 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:13:57,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:13:57,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:13:57,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-29 22:13:57,999 INFO L87 Difference]: Start difference. First operand 28630 states and 32872 transitions. Second operand 3 states. [2020-11-29 22:13:59,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:13:59,819 INFO L93 Difference]: Finished difference Result 55251 states and 63703 transitions. [2020-11-29 22:13:59,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:13:59,820 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 324 [2020-11-29 22:13:59,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:13:59,891 INFO L225 Difference]: With dead ends: 55251 [2020-11-29 22:13:59,891 INFO L226 Difference]: Without dead ends: 29942 [2020-11-29 22:13:59,908 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-29 22:13:59,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29942 states. [2020-11-29 22:14:00,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29942 to 29382. [2020-11-29 22:14:00,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29382 states. [2020-11-29 22:14:00,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29382 states to 29382 states and 33686 transitions. [2020-11-29 22:14:00,747 INFO L78 Accepts]: Start accepts. Automaton has 29382 states and 33686 transitions. Word has length 324 [2020-11-29 22:14:00,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:14:00,748 INFO L481 AbstractCegarLoop]: Abstraction has 29382 states and 33686 transitions. [2020-11-29 22:14:00,748 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:14:00,748 INFO L276 IsEmpty]: Start isEmpty. Operand 29382 states and 33686 transitions. [2020-11-29 22:14:00,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2020-11-29 22:14:00,762 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:14:00,762 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:14:00,988 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-11-29 22:14:00,989 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:14:00,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:14:00,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1088628085, now seen corresponding path program 1 times [2020-11-29 22:14:00,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:14:00,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510825413] [2020-11-29 22:14:00,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:14:01,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:14:01,250 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2020-11-29 22:14:01,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510825413] [2020-11-29 22:14:01,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:14:01,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:14:01,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110301459] [2020-11-29 22:14:01,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:14:01,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:14:01,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:14:01,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:14:01,258 INFO L87 Difference]: Start difference. First operand 29382 states and 33686 transitions. Second operand 3 states. [2020-11-29 22:14:03,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:14:03,048 INFO L93 Difference]: Finished difference Result 59674 states and 68998 transitions. [2020-11-29 22:14:03,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:14:03,049 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 326 [2020-11-29 22:14:03,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:14:03,116 INFO L225 Difference]: With dead ends: 59674 [2020-11-29 22:14:03,116 INFO L226 Difference]: Without dead ends: 33613 [2020-11-29 22:14:03,136 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 [2020-11-29 22:14:03,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33613 states. [2020-11-29 22:14:03,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33613 to 25872. [2020-11-29 22:14:03,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25872 states. [2020-11-29 22:14:03,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25872 states to 25872 states and 29357 transitions. [2020-11-29 22:14:03,645 INFO L78 Accepts]: Start accepts. Automaton has 25872 states and 29357 transitions. Word has length 326 [2020-11-29 22:14:03,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:14:03,646 INFO L481 AbstractCegarLoop]: Abstraction has 25872 states and 29357 transitions. [2020-11-29 22:14:03,646 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:14:03,646 INFO L276 IsEmpty]: Start isEmpty. Operand 25872 states and 29357 transitions. [2020-11-29 22:14:03,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2020-11-29 22:14:03,656 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:14:03,657 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:14:03,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-29 22:14:03,658 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:14:03,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:14:03,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1163789761, now seen corresponding path program 1 times [2020-11-29 22:14:03,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:14:03,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061173340] [2020-11-29 22:14:03,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:14:03,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:14:04,009 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 299 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2020-11-29 22:14:04,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061173340] [2020-11-29 22:14:04,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:14:04,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:14:04,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764998824] [2020-11-29 22:14:04,011 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:14:04,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:14:04,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:14:04,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:14:04,012 INFO L87 Difference]: Start difference. First operand 25872 states and 29357 transitions. Second operand 3 states. [2020-11-29 22:14:05,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:14:05,354 INFO L93 Difference]: Finished difference Result 51187 states and 58157 transitions. [2020-11-29 22:14:05,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:14:05,355 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 330 [2020-11-29 22:14:05,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:14:05,396 INFO L225 Difference]: With dead ends: 51187 [2020-11-29 22:14:05,397 INFO L226 Difference]: Without dead ends: 25502 [2020-11-29 22:14:05,418 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 [2020-11-29 22:14:05,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25502 states. [2020-11-29 22:14:05,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25502 to 21819. [2020-11-29 22:14:05,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21819 states. [2020-11-29 22:14:06,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21819 states to 21819 states and 24039 transitions. [2020-11-29 22:14:06,044 INFO L78 Accepts]: Start accepts. Automaton has 21819 states and 24039 transitions. Word has length 330 [2020-11-29 22:14:06,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:14:06,044 INFO L481 AbstractCegarLoop]: Abstraction has 21819 states and 24039 transitions. [2020-11-29 22:14:06,044 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:14:06,044 INFO L276 IsEmpty]: Start isEmpty. Operand 21819 states and 24039 transitions. [2020-11-29 22:14:06,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-11-29 22:14:06,050 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:14:06,051 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-29 22:14:06,051 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-29 22:14:06,051 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:14:06,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:14:06,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1775685606, now seen corresponding path program 1 times [2020-11-29 22:14:06,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:14:06,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249381288] [2020-11-29 22:14:06,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:14:06,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:14:06,308 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2020-11-29 22:14:06,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249381288] [2020-11-29 22:14:06,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:14:06,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:14:06,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386780786] [2020-11-29 22:14:06,310 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:14:06,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:14:06,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:14:06,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:14:06,312 INFO L87 Difference]: Start difference. First operand 21819 states and 24039 transitions. Second operand 3 states. [2020-11-29 22:14:07,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:14:07,274 INFO L93 Difference]: Finished difference Result 42148 states and 46449 transitions. [2020-11-29 22:14:07,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:14:07,275 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 333 [2020-11-29 22:14:07,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:14:07,304 INFO L225 Difference]: With dead ends: 42148 [2020-11-29 22:14:07,304 INFO L226 Difference]: Without dead ends: 20699 [2020-11-29 22:14:07,317 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 [2020-11-29 22:14:07,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20699 states. [2020-11-29 22:14:07,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20699 to 20692. [2020-11-29 22:14:07,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20692 states. [2020-11-29 22:14:07,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20692 states to 20692 states and 22768 transitions. [2020-11-29 22:14:07,620 INFO L78 Accepts]: Start accepts. Automaton has 20692 states and 22768 transitions. Word has length 333 [2020-11-29 22:14:07,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:14:07,620 INFO L481 AbstractCegarLoop]: Abstraction has 20692 states and 22768 transitions. [2020-11-29 22:14:07,621 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:14:07,621 INFO L276 IsEmpty]: Start isEmpty. Operand 20692 states and 22768 transitions. [2020-11-29 22:14:07,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2020-11-29 22:14:07,629 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:14:07,630 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:14:07,630 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-29 22:14:07,630 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:14:07,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:14:07,631 INFO L82 PathProgramCache]: Analyzing trace with hash 1405447147, now seen corresponding path program 1 times [2020-11-29 22:14:07,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:14:07,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639441903] [2020-11-29 22:14:07,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:14:07,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:14:07,847 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 281 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-11-29 22:14:07,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639441903] [2020-11-29 22:14:07,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:14:07,852 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:14:07,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124722113] [2020-11-29 22:14:07,855 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:14:07,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:14:07,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:14:07,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:14:07,857 INFO L87 Difference]: Start difference. First operand 20692 states and 22768 transitions. Second operand 3 states. [2020-11-29 22:14:09,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:14:09,339 INFO L93 Difference]: Finished difference Result 43590 states and 47981 transitions. [2020-11-29 22:14:09,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:14:09,340 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 357 [2020-11-29 22:14:09,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:14:09,363 INFO L225 Difference]: With dead ends: 43590 [2020-11-29 22:14:09,363 INFO L226 Difference]: Without dead ends: 21422 [2020-11-29 22:14:09,376 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 [2020-11-29 22:14:09,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21422 states. [2020-11-29 22:14:09,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21422 to 18652. [2020-11-29 22:14:09,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18652 states. [2020-11-29 22:14:09,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18652 states to 18652 states and 20303 transitions. [2020-11-29 22:14:09,703 INFO L78 Accepts]: Start accepts. Automaton has 18652 states and 20303 transitions. Word has length 357 [2020-11-29 22:14:09,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:14:09,704 INFO L481 AbstractCegarLoop]: Abstraction has 18652 states and 20303 transitions. [2020-11-29 22:14:09,704 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:14:09,704 INFO L276 IsEmpty]: Start isEmpty. Operand 18652 states and 20303 transitions. [2020-11-29 22:14:09,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2020-11-29 22:14:09,716 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:14:09,716 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:14:09,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-29 22:14:09,717 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:14:09,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:14:09,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1776444105, now seen corresponding path program 1 times [2020-11-29 22:14:09,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:14:09,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672097284] [2020-11-29 22:14:09,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:14:09,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:14:10,087 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 146 proven. 153 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-11-29 22:14:10,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672097284] [2020-11-29 22:14:10,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1404163010] [2020-11-29 22:14:10,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bbf69287-8f32-4ed7-9427-d24461567326/bin/uautomizer/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 [2020-11-29 22:14:10,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:14:10,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 22:14:10,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:14:10,371 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 22:14:10,393 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:14:10,437 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:14:11,479 WARN L193 SmtUtils]: Spent 903.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 20 [2020-11-29 22:14:11,860 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 299 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-11-29 22:14:11,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 22:14:11,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2020-11-29 22:14:11,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481940777] [2020-11-29 22:14:11,862 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 22:14:11,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:14:11,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 22:14:11,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-29 22:14:11,863 INFO L87 Difference]: Start difference. First operand 18652 states and 20303 transitions. Second operand 4 states. [2020-11-29 22:14:13,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:14:13,595 INFO L93 Difference]: Finished difference Result 37120 states and 40437 transitions. [2020-11-29 22:14:13,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:14:13,597 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 367 [2020-11-29 22:14:13,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:14:13,623 INFO L225 Difference]: With dead ends: 37120 [2020-11-29 22:14:13,624 INFO L226 Difference]: Without dead ends: 18838 [2020-11-29 22:14:13,640 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 365 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-29 22:14:13,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18838 states. [2020-11-29 22:14:13,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18838 to 18836. [2020-11-29 22:14:13,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18836 states. [2020-11-29 22:14:13,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18836 states to 18836 states and 20487 transitions. [2020-11-29 22:14:13,916 INFO L78 Accepts]: Start accepts. Automaton has 18836 states and 20487 transitions. Word has length 367 [2020-11-29 22:14:13,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:14:13,916 INFO L481 AbstractCegarLoop]: Abstraction has 18836 states and 20487 transitions. [2020-11-29 22:14:13,916 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 22:14:13,916 INFO L276 IsEmpty]: Start isEmpty. Operand 18836 states and 20487 transitions. [2020-11-29 22:14:13,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2020-11-29 22:14:13,928 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:14:13,929 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:14:14,129 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:14:14,130 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:14:14,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:14:14,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1123248884, now seen corresponding path program 1 times [2020-11-29 22:14:14,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:14:14,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215630029] [2020-11-29 22:14:14,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:14:14,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:14:14,631 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 344 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-11-29 22:14:14,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215630029] [2020-11-29 22:14:14,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:14:14,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:14:14,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282578162] [2020-11-29 22:14:14,634 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 22:14:14,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:14:14,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 22:14:14,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:14:14,635 INFO L87 Difference]: Start difference. First operand 18836 states and 20487 transitions. Second operand 4 states. [2020-11-29 22:14:16,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:14:16,797 INFO L93 Difference]: Finished difference Result 40071 states and 43642 transitions. [2020-11-29 22:14:16,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 22:14:16,798 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 372 [2020-11-29 22:14:16,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:14:16,819 INFO L225 Difference]: With dead ends: 40071 [2020-11-29 22:14:16,819 INFO L226 Difference]: Without dead ends: 21237 [2020-11-29 22:14:16,826 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:14:16,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21237 states. [2020-11-29 22:14:17,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21237 to 19020. [2020-11-29 22:14:17,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19020 states. [2020-11-29 22:14:17,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19020 states to 19020 states and 20653 transitions. [2020-11-29 22:14:17,074 INFO L78 Accepts]: Start accepts. Automaton has 19020 states and 20653 transitions. Word has length 372 [2020-11-29 22:14:17,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:14:17,075 INFO L481 AbstractCegarLoop]: Abstraction has 19020 states and 20653 transitions. [2020-11-29 22:14:17,075 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 22:14:17,075 INFO L276 IsEmpty]: Start isEmpty. Operand 19020 states and 20653 transitions. [2020-11-29 22:14:17,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2020-11-29 22:14:17,085 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:14:17,086 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:14:17,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-11-29 22:14:17,086 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:14:17,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:14:17,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1486123416, now seen corresponding path program 1 times [2020-11-29 22:14:17,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:14:17,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364422748] [2020-11-29 22:14:17,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:14:17,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:14:17,518 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 146 proven. 200 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-11-29 22:14:17,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364422748] [2020-11-29 22:14:17,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141645357] [2020-11-29 22:14:17,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bbf69287-8f32-4ed7-9427-d24461567326/bin/uautomizer/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 [2020-11-29 22:14:17,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:14:17,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 14 conjunts are in the unsatisfiable core [2020-11-29 22:14:17,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:14:17,728 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-29 22:14:17,743 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:14:17,765 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:14:17,770 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:14:17,794 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:14:18,373 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 244 proven. 179 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:14:18,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 22:14:18,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2020-11-29 22:14:18,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261394246] [2020-11-29 22:14:18,375 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-29 22:14:18,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:14:18,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-29 22:14:18,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-11-29 22:14:18,377 INFO L87 Difference]: Start difference. First operand 19020 states and 20653 transitions. Second operand 9 states. [2020-11-29 22:14:27,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:14:27,520 INFO L93 Difference]: Finished difference Result 55087 states and 59633 transitions. [2020-11-29 22:14:27,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-11-29 22:14:27,521 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 389 [2020-11-29 22:14:27,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:14:27,564 INFO L225 Difference]: With dead ends: 55087 [2020-11-29 22:14:27,564 INFO L226 Difference]: Without dead ends: 35885 [2020-11-29 22:14:27,580 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=156, Invalid=350, Unknown=0, NotChecked=0, Total=506 [2020-11-29 22:14:27,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35885 states. [2020-11-29 22:14:28,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35885 to 33948. [2020-11-29 22:14:28,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33948 states. [2020-11-29 22:14:28,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33948 states to 33948 states and 36558 transitions. [2020-11-29 22:14:28,182 INFO L78 Accepts]: Start accepts. Automaton has 33948 states and 36558 transitions. Word has length 389 [2020-11-29 22:14:28,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:14:28,182 INFO L481 AbstractCegarLoop]: Abstraction has 33948 states and 36558 transitions. [2020-11-29 22:14:28,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-29 22:14:28,183 INFO L276 IsEmpty]: Start isEmpty. Operand 33948 states and 36558 transitions. [2020-11-29 22:14:28,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2020-11-29 22:14:28,193 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:14:28,193 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-29 22:14:28,395 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:14:28,395 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:14:28,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:14:28,396 INFO L82 PathProgramCache]: Analyzing trace with hash 1578214347, now seen corresponding path program 1 times [2020-11-29 22:14:28,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:14:28,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640772526] [2020-11-29 22:14:28,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:14:28,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:14:28,772 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2020-11-29 22:14:28,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640772526] [2020-11-29 22:14:28,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:14:28,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:14:28,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997260864] [2020-11-29 22:14:28,773 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 22:14:28,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:14:28,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 22:14:28,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:14:28,774 INFO L87 Difference]: Start difference. First operand 33948 states and 36558 transitions. Second operand 4 states. [2020-11-29 22:14:31,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:14:31,421 INFO L93 Difference]: Finished difference Result 69373 states and 74759 transitions. [2020-11-29 22:14:31,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 22:14:31,425 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 394 [2020-11-29 22:14:31,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:14:31,467 INFO L225 Difference]: With dead ends: 69373 [2020-11-29 22:14:31,468 INFO L226 Difference]: Without dead ends: 35795 [2020-11-29 22:14:31,634 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:14:31,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35795 states. [2020-11-29 22:14:31,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35795 to 32094. [2020-11-29 22:14:31,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32094 states. [2020-11-29 22:14:32,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32094 states to 32094 states and 34524 transitions. [2020-11-29 22:14:32,031 INFO L78 Accepts]: Start accepts. Automaton has 32094 states and 34524 transitions. Word has length 394 [2020-11-29 22:14:32,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:14:32,032 INFO L481 AbstractCegarLoop]: Abstraction has 32094 states and 34524 transitions. [2020-11-29 22:14:32,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 22:14:32,032 INFO L276 IsEmpty]: Start isEmpty. Operand 32094 states and 34524 transitions. [2020-11-29 22:14:32,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2020-11-29 22:14:32,040 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:14:32,041 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:14:32,041 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-11-29 22:14:32,041 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:14:32,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:14:32,042 INFO L82 PathProgramCache]: Analyzing trace with hash -1318284716, now seen corresponding path program 1 times [2020-11-29 22:14:32,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:14:32,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013585819] [2020-11-29 22:14:32,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:14:32,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:14:32,389 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-11-29 22:14:32,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013585819] [2020-11-29 22:14:32,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:14:32,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:14:32,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29418924] [2020-11-29 22:14:32,391 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:14:32,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:14:32,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:14:32,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:14:32,392 INFO L87 Difference]: Start difference. First operand 32094 states and 34524 transitions. Second operand 3 states. [2020-11-29 22:14:33,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:14:33,897 INFO L93 Difference]: Finished difference Result 66022 states and 71040 transitions. [2020-11-29 22:14:33,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:14:33,899 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 434 [2020-11-29 22:14:33,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:14:33,938 INFO L225 Difference]: With dead ends: 66022 [2020-11-29 22:14:33,938 INFO L226 Difference]: Without dead ends: 34298 [2020-11-29 22:14:33,952 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 [2020-11-29 22:14:33,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34298 states. [2020-11-29 22:14:34,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34298 to 27852. [2020-11-29 22:14:34,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27852 states. [2020-11-29 22:14:34,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27852 states to 27852 states and 29859 transitions. [2020-11-29 22:14:34,318 INFO L78 Accepts]: Start accepts. Automaton has 27852 states and 29859 transitions. Word has length 434 [2020-11-29 22:14:34,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:14:34,318 INFO L481 AbstractCegarLoop]: Abstraction has 27852 states and 29859 transitions. [2020-11-29 22:14:34,318 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:14:34,318 INFO L276 IsEmpty]: Start isEmpty. Operand 27852 states and 29859 transitions. [2020-11-29 22:14:34,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2020-11-29 22:14:34,328 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:14:34,329 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:14:34,329 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-11-29 22:14:34,329 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:14:34,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:14:34,330 INFO L82 PathProgramCache]: Analyzing trace with hash 509022074, now seen corresponding path program 1 times [2020-11-29 22:14:34,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:14:34,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41087089] [2020-11-29 22:14:34,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:14:34,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:14:34,657 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 608 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2020-11-29 22:14:34,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41087089] [2020-11-29 22:14:34,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:14:34,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:14:34,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120667603] [2020-11-29 22:14:34,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:14:34,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:14:34,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:14:34,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:14:34,660 INFO L87 Difference]: Start difference. First operand 27852 states and 29859 transitions. Second operand 3 states. [2020-11-29 22:14:36,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:14:36,031 INFO L93 Difference]: Finished difference Result 54426 states and 58423 transitions. [2020-11-29 22:14:36,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:14:36,034 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 468 [2020-11-29 22:14:36,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:14:36,078 INFO L225 Difference]: With dead ends: 54426 [2020-11-29 22:14:36,078 INFO L226 Difference]: Without dead ends: 29520 [2020-11-29 22:14:36,098 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 [2020-11-29 22:14:36,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29520 states. [2020-11-29 22:14:36,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29520 to 27484. [2020-11-29 22:14:36,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27484 states. [2020-11-29 22:14:36,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27484 states to 27484 states and 29449 transitions. [2020-11-29 22:14:36,526 INFO L78 Accepts]: Start accepts. Automaton has 27484 states and 29449 transitions. Word has length 468 [2020-11-29 22:14:36,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:14:36,526 INFO L481 AbstractCegarLoop]: Abstraction has 27484 states and 29449 transitions. [2020-11-29 22:14:36,526 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:14:36,526 INFO L276 IsEmpty]: Start isEmpty. Operand 27484 states and 29449 transitions. [2020-11-29 22:14:36,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2020-11-29 22:14:36,536 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:14:36,537 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-29 22:14:36,537 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-11-29 22:14:36,537 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:14:36,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:14:36,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1291488157, now seen corresponding path program 1 times [2020-11-29 22:14:36,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:14:36,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636676118] [2020-11-29 22:14:36,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:14:36,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:14:37,226 INFO L134 CoverageAnalysis]: Checked inductivity of 685 backedges. 365 proven. 36 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2020-11-29 22:14:37,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636676118] [2020-11-29 22:14:37,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374912067] [2020-11-29 22:14:37,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bbf69287-8f32-4ed7-9427-d24461567326/bin/uautomizer/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 [2020-11-29 22:14:37,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:14:37,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 22:14:37,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:14:37,719 INFO L134 CoverageAnalysis]: Checked inductivity of 685 backedges. 401 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2020-11-29 22:14:37,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 22:14:37,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-29 22:14:37,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86388283] [2020-11-29 22:14:37,720 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:14:37,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:14:37,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:14:37,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 22:14:37,721 INFO L87 Difference]: Start difference. First operand 27484 states and 29449 transitions. Second operand 3 states. [2020-11-29 22:14:38,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:14:38,775 INFO L93 Difference]: Finished difference Result 53862 states and 57762 transitions. [2020-11-29 22:14:38,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:14:38,777 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 472 [2020-11-29 22:14:38,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:14:38,801 INFO L225 Difference]: With dead ends: 53862 [2020-11-29 22:14:38,801 INFO L226 Difference]: Without dead ends: 28220 [2020-11-29 22:14:38,912 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 471 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 22:14:38,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28220 states. [2020-11-29 22:14:39,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28220 to 27484. [2020-11-29 22:14:39,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27484 states. [2020-11-29 22:14:39,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27484 states to 27484 states and 29378 transitions. [2020-11-29 22:14:39,172 INFO L78 Accepts]: Start accepts. Automaton has 27484 states and 29378 transitions. Word has length 472 [2020-11-29 22:14:39,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:14:39,173 INFO L481 AbstractCegarLoop]: Abstraction has 27484 states and 29378 transitions. [2020-11-29 22:14:39,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:14:39,173 INFO L276 IsEmpty]: Start isEmpty. Operand 27484 states and 29378 transitions. [2020-11-29 22:14:39,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 524 [2020-11-29 22:14:39,188 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:14:39,189 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:14:39,404 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:14:39,405 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:14:39,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:14:39,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1142252983, now seen corresponding path program 1 times [2020-11-29 22:14:39,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:14:39,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318836941] [2020-11-29 22:14:39,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:14:39,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:14:40,378 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 599 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-11-29 22:14:40,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318836941] [2020-11-29 22:14:40,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:14:40,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 22:14:40,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984921149] [2020-11-29 22:14:40,379 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 22:14:40,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:14:40,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 22:14:40,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 22:14:40,380 INFO L87 Difference]: Start difference. First operand 27484 states and 29378 transitions. Second operand 6 states. [2020-11-29 22:14:42,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:14:42,801 INFO L93 Difference]: Finished difference Result 57665 states and 61624 transitions. [2020-11-29 22:14:42,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 22:14:42,802 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 523 [2020-11-29 22:14:42,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:14:42,843 INFO L225 Difference]: With dead ends: 57665 [2020-11-29 22:14:42,843 INFO L226 Difference]: Without dead ends: 33127 [2020-11-29 22:14:42,854 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-11-29 22:14:42,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33127 states. [2020-11-29 22:14:43,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33127 to 28590. [2020-11-29 22:14:43,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28590 states. [2020-11-29 22:14:43,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28590 states to 28590 states and 30573 transitions. [2020-11-29 22:14:43,176 INFO L78 Accepts]: Start accepts. Automaton has 28590 states and 30573 transitions. Word has length 523 [2020-11-29 22:14:43,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:14:43,177 INFO L481 AbstractCegarLoop]: Abstraction has 28590 states and 30573 transitions. [2020-11-29 22:14:43,177 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 22:14:43,177 INFO L276 IsEmpty]: Start isEmpty. Operand 28590 states and 30573 transitions. [2020-11-29 22:14:43,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2020-11-29 22:14:43,194 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:14:43,195 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:14:43,195 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-11-29 22:14:43,195 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:14:43,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:14:43,196 INFO L82 PathProgramCache]: Analyzing trace with hash 120676962, now seen corresponding path program 1 times [2020-11-29 22:14:43,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:14:43,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528832579] [2020-11-29 22:14:43,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:14:43,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:14:44,512 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 606 proven. 8 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-11-29 22:14:44,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528832579] [2020-11-29 22:14:44,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80817555] [2020-11-29 22:14:44,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bbf69287-8f32-4ed7-9427-d24461567326/bin/uautomizer/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 [2020-11-29 22:14:44,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:14:44,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 717 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 22:14:44,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:14:44,708 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:14:44,717 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:14:44,731 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:14:45,300 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 493 proven. 121 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-11-29 22:14:45,301 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 22:14:45,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2020-11-29 22:14:45,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140759151] [2020-11-29 22:14:45,302 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-29 22:14:45,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:14:45,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-29 22:14:45,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-11-29 22:14:45,302 INFO L87 Difference]: Start difference. First operand 28590 states and 30573 transitions. Second operand 9 states. [2020-11-29 22:14:50,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:14:50,336 INFO L93 Difference]: Finished difference Result 60069 states and 64182 transitions. [2020-11-29 22:14:50,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-29 22:14:50,337 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 533 [2020-11-29 22:14:50,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:14:50,366 INFO L225 Difference]: With dead ends: 60069 [2020-11-29 22:14:50,366 INFO L226 Difference]: Without dead ends: 34425 [2020-11-29 22:14:50,376 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 531 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2020-11-29 22:14:50,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34425 states. [2020-11-29 22:14:50,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34425 to 31902. [2020-11-29 22:14:50,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31902 states. [2020-11-29 22:14:50,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31902 states to 31902 states and 34040 transitions. [2020-11-29 22:14:50,725 INFO L78 Accepts]: Start accepts. Automaton has 31902 states and 34040 transitions. Word has length 533 [2020-11-29 22:14:50,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:14:50,725 INFO L481 AbstractCegarLoop]: Abstraction has 31902 states and 34040 transitions. [2020-11-29 22:14:50,725 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-29 22:14:50,725 INFO L276 IsEmpty]: Start isEmpty. Operand 31902 states and 34040 transitions. [2020-11-29 22:14:50,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 537 [2020-11-29 22:14:50,736 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:14:50,737 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-29 22:14:50,937 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-11-29 22:14:50,937 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:14:50,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:14:50,938 INFO L82 PathProgramCache]: Analyzing trace with hash 305292135, now seen corresponding path program 1 times [2020-11-29 22:14:50,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:14:50,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44568610] [2020-11-29 22:14:50,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:14:51,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:14:51,490 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 390 proven. 206 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2020-11-29 22:14:51,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44568610] [2020-11-29 22:14:51,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838866978] [2020-11-29 22:14:51,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bbf69287-8f32-4ed7-9427-d24461567326/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:14:51,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:14:51,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 717 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 22:14:51,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:14:51,670 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:14:51,673 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:14:51,686 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:14:51,754 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 22:14:51,755 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:14:51,757 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:14:51,759 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 22:14:51,769 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:14:51,773 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 22:14:51,783 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 22:14:51,789 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 22:14:52,683 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 341 proven. 255 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2020-11-29 22:14:52,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 22:14:52,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-11-29 22:14:52,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623703025] [2020-11-29 22:14:52,687 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 22:14:52,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:14:52,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 22:14:52,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-29 22:14:52,689 INFO L87 Difference]: Start difference. First operand 31902 states and 34040 transitions. Second operand 7 states. [2020-11-29 22:14:58,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:14:58,310 INFO L93 Difference]: Finished difference Result 76165 states and 81514 transitions. [2020-11-29 22:14:58,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 22:14:58,311 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 536 [2020-11-29 22:14:58,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:14:58,350 INFO L225 Difference]: With dead ends: 76165 [2020-11-29 22:14:58,350 INFO L226 Difference]: Without dead ends: 45001 [2020-11-29 22:14:58,362 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 540 GetRequests, 533 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-29 22:14:58,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45001 states. [2020-11-29 22:14:58,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45001 to 37624. [2020-11-29 22:14:58,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37624 states. [2020-11-29 22:14:58,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37624 states to 37624 states and 40190 transitions. [2020-11-29 22:14:58,940 INFO L78 Accepts]: Start accepts. Automaton has 37624 states and 40190 transitions. Word has length 536 [2020-11-29 22:14:58,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:14:58,941 INFO L481 AbstractCegarLoop]: Abstraction has 37624 states and 40190 transitions. [2020-11-29 22:14:58,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 22:14:58,941 INFO L276 IsEmpty]: Start isEmpty. Operand 37624 states and 40190 transitions. [2020-11-29 22:14:58,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2020-11-29 22:14:58,953 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:14:58,953 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:14:59,164 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2020-11-29 22:14:59,164 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:14:59,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:14:59,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1010392042, now seen corresponding path program 1 times [2020-11-29 22:14:59,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:14:59,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430306689] [2020-11-29 22:14:59,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:14:59,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:14:59,773 INFO L134 CoverageAnalysis]: Checked inductivity of 764 backedges. 408 proven. 206 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2020-11-29 22:14:59,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430306689] [2020-11-29 22:14:59,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745644722] [2020-11-29 22:14:59,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bbf69287-8f32-4ed7-9427-d24461567326/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:14:59,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:14:59,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 22:14:59,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:14:59,989 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 4, 1] term [2020-11-29 22:14:59,990 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-29 22:14:59,994 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:14:59,997 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 22:15:00,001 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:15:00,005 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 22:15:00,006 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 22:15:00,012 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:15:00,017 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:15:00,020 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:15:00,123 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:15:00,135 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:15:00,139 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:15:00,214 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:15:00,217 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 22:15:00,239 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 22:15:00,244 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:15:00,250 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:15:00,257 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:15:00,266 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 22:15:00,322 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:15:00,326 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:15:00,329 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:15:00,341 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 22:15:00,343 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 22:15:00,347 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:15:02,693 WARN L193 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 232 DAG size of output: 51 [2020-11-29 22:15:04,137 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-11-29 22:15:06,205 INFO L134 CoverageAnalysis]: Checked inductivity of 764 backedges. 352 proven. 49 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2020-11-29 22:15:06,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 22:15:06,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2020-11-29 22:15:06,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192300848] [2020-11-29 22:15:06,207 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-29 22:15:06,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:15:06,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-29 22:15:06,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=41, Unknown=1, NotChecked=0, Total=72 [2020-11-29 22:15:06,208 INFO L87 Difference]: Start difference. First operand 37624 states and 40190 transitions. Second operand 9 states. [2020-11-29 22:15:33,192 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 55 [2020-11-29 22:16:31,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:16:31,881 INFO L93 Difference]: Finished difference Result 87092 states and 92960 transitions. [2020-11-29 22:16:31,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-29 22:16:31,883 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 547 [2020-11-29 22:16:31,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:16:31,933 INFO L225 Difference]: With dead ends: 87092 [2020-11-29 22:16:31,933 INFO L226 Difference]: Without dead ends: 52046 [2020-11-29 22:16:31,949 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 561 GetRequests, 549 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=71, Invalid=110, Unknown=1, NotChecked=0, Total=182 [2020-11-29 22:16:31,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52046 states. [2020-11-29 22:16:32,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52046 to 39098. [2020-11-29 22:16:32,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39098 states. [2020-11-29 22:16:32,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39098 states to 39098 states and 41783 transitions. [2020-11-29 22:16:32,497 INFO L78 Accepts]: Start accepts. Automaton has 39098 states and 41783 transitions. Word has length 547 [2020-11-29 22:16:32,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:16:32,498 INFO L481 AbstractCegarLoop]: Abstraction has 39098 states and 41783 transitions. [2020-11-29 22:16:32,498 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-29 22:16:32,498 INFO L276 IsEmpty]: Start isEmpty. Operand 39098 states and 41783 transitions. [2020-11-29 22:16:32,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2020-11-29 22:16:32,509 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:16:32,510 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:16:32,718 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2020-11-29 22:16:32,718 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:16:32,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:16:32,719 INFO L82 PathProgramCache]: Analyzing trace with hash -79147182, now seen corresponding path program 1 times [2020-11-29 22:16:32,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:16:32,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178237533] [2020-11-29 22:16:32,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:16:32,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:16:33,435 INFO L134 CoverageAnalysis]: Checked inductivity of 815 backedges. 635 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-11-29 22:16:33,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178237533] [2020-11-29 22:16:33,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:16:33,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:16:33,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212049219] [2020-11-29 22:16:33,437 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 22:16:33,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:16:33,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 22:16:33,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:16:33,438 INFO L87 Difference]: Start difference. First operand 39098 states and 41783 transitions. Second operand 4 states. [2020-11-29 22:16:35,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:16:35,478 INFO L93 Difference]: Finished difference Result 80040 states and 85551 transitions. [2020-11-29 22:16:35,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 22:16:35,480 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 554 [2020-11-29 22:16:35,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:16:35,517 INFO L225 Difference]: With dead ends: 80040 [2020-11-29 22:16:35,517 INFO L226 Difference]: Without dead ends: 43520 [2020-11-29 22:16:35,532 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:16:35,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43520 states. [2020-11-29 22:16:36,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43520 to 41124. [2020-11-29 22:16:36,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41124 states. [2020-11-29 22:16:36,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41124 states to 41124 states and 43934 transitions. [2020-11-29 22:16:36,185 INFO L78 Accepts]: Start accepts. Automaton has 41124 states and 43934 transitions. Word has length 554 [2020-11-29 22:16:36,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:16:36,185 INFO L481 AbstractCegarLoop]: Abstraction has 41124 states and 43934 transitions. [2020-11-29 22:16:36,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 22:16:36,185 INFO L276 IsEmpty]: Start isEmpty. Operand 41124 states and 43934 transitions. [2020-11-29 22:16:36,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 631 [2020-11-29 22:16:36,200 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:16:36,200 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:16:36,200 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-11-29 22:16:36,200 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:16:36,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:16:36,201 INFO L82 PathProgramCache]: Analyzing trace with hash -197877669, now seen corresponding path program 1 times [2020-11-29 22:16:36,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:16:36,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187176410] [2020-11-29 22:16:36,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:16:36,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:16:36,706 INFO L134 CoverageAnalysis]: Checked inductivity of 1215 backedges. 901 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-11-29 22:16:36,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187176410] [2020-11-29 22:16:36,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:16:36,707 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 22:16:36,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216658914] [2020-11-29 22:16:36,707 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 22:16:36,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:16:36,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 22:16:36,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:16:36,708 INFO L87 Difference]: Start difference. First operand 41124 states and 43934 transitions. Second operand 4 states. [2020-11-29 22:16:39,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:16:39,311 INFO L93 Difference]: Finished difference Result 94607 states and 101034 transitions. [2020-11-29 22:16:39,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 22:16:39,312 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 630 [2020-11-29 22:16:39,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:16:39,362 INFO L225 Difference]: With dead ends: 94607 [2020-11-29 22:16:39,362 INFO L226 Difference]: Without dead ends: 54589 [2020-11-29 22:16:39,380 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:16:39,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54589 states. [2020-11-29 22:16:40,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54589 to 45744. [2020-11-29 22:16:40,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45744 states. [2020-11-29 22:16:40,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45744 states to 45744 states and 48707 transitions. [2020-11-29 22:16:40,065 INFO L78 Accepts]: Start accepts. Automaton has 45744 states and 48707 transitions. Word has length 630 [2020-11-29 22:16:40,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:16:40,065 INFO L481 AbstractCegarLoop]: Abstraction has 45744 states and 48707 transitions. [2020-11-29 22:16:40,065 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 22:16:40,065 INFO L276 IsEmpty]: Start isEmpty. Operand 45744 states and 48707 transitions. [2020-11-29 22:16:40,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 854 [2020-11-29 22:16:40,084 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:16:40,085 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 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] [2020-11-29 22:16:40,085 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-11-29 22:16:40,085 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:16:40,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:16:40,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1831335414, now seen corresponding path program 1 times [2020-11-29 22:16:40,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:16:40,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618835798] [2020-11-29 22:16:40,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:16:40,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:16:40,856 INFO L134 CoverageAnalysis]: Checked inductivity of 2469 backedges. 1737 proven. 0 refuted. 0 times theorem prover too weak. 732 trivial. 0 not checked. [2020-11-29 22:16:40,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618835798] [2020-11-29 22:16:40,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:16:40,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:16:40,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787859132] [2020-11-29 22:16:40,858 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:16:40,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:16:40,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:16:40,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:16:40,858 INFO L87 Difference]: Start difference. First operand 45744 states and 48707 transitions. Second operand 3 states. [2020-11-29 22:16:42,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:16:42,386 INFO L93 Difference]: Finished difference Result 88344 states and 94094 transitions. [2020-11-29 22:16:42,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:16:42,388 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 853 [2020-11-29 22:16:42,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:16:42,439 INFO L225 Difference]: With dead ends: 88344 [2020-11-29 22:16:42,439 INFO L226 Difference]: Without dead ends: 43890 [2020-11-29 22:16:42,455 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 [2020-11-29 22:16:42,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43890 states. [2020-11-29 22:16:43,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43890 to 41492. [2020-11-29 22:16:43,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41492 states. [2020-11-29 22:16:43,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41492 states to 41492 states and 44050 transitions. [2020-11-29 22:16:43,100 INFO L78 Accepts]: Start accepts. Automaton has 41492 states and 44050 transitions. Word has length 853 [2020-11-29 22:16:43,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:16:43,101 INFO L481 AbstractCegarLoop]: Abstraction has 41492 states and 44050 transitions. [2020-11-29 22:16:43,101 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:16:43,101 INFO L276 IsEmpty]: Start isEmpty. Operand 41492 states and 44050 transitions. [2020-11-29 22:16:43,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1135 [2020-11-29 22:16:43,121 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:16:43,122 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 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] [2020-11-29 22:16:43,122 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-11-29 22:16:43,122 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:16:43,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:16:43,122 INFO L82 PathProgramCache]: Analyzing trace with hash 308889373, now seen corresponding path program 1 times [2020-11-29 22:16:43,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:16:43,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619086625] [2020-11-29 22:16:43,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:16:43,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:16:44,295 INFO L134 CoverageAnalysis]: Checked inductivity of 3580 backedges. 2077 proven. 0 refuted. 0 times theorem prover too weak. 1503 trivial. 0 not checked. [2020-11-29 22:16:44,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619086625] [2020-11-29 22:16:44,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:16:44,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:16:44,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158957049] [2020-11-29 22:16:44,296 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:16:44,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:16:44,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:16:44,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:16:44,297 INFO L87 Difference]: Start difference. First operand 41492 states and 44050 transitions. Second operand 3 states. [2020-11-29 22:16:45,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:16:45,796 INFO L93 Difference]: Finished difference Result 76162 states and 80866 transitions. [2020-11-29 22:16:45,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:16:45,797 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1134 [2020-11-29 22:16:45,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:16:45,827 INFO L225 Difference]: With dead ends: 76162 [2020-11-29 22:16:45,827 INFO L226 Difference]: Without dead ends: 34856 [2020-11-29 22:16:45,843 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 [2020-11-29 22:16:45,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34856 states. [2020-11-29 22:16:46,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34856 to 30986. [2020-11-29 22:16:46,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30986 states. [2020-11-29 22:16:46,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30986 states to 30986 states and 32770 transitions. [2020-11-29 22:16:46,378 INFO L78 Accepts]: Start accepts. Automaton has 30986 states and 32770 transitions. Word has length 1134 [2020-11-29 22:16:46,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:16:46,379 INFO L481 AbstractCegarLoop]: Abstraction has 30986 states and 32770 transitions. [2020-11-29 22:16:46,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:16:46,379 INFO L276 IsEmpty]: Start isEmpty. Operand 30986 states and 32770 transitions. [2020-11-29 22:16:46,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1264 [2020-11-29 22:16:46,397 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:16:46,397 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-29 22:16:46,398 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-11-29 22:16:46,398 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:16:46,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:16:46,398 INFO L82 PathProgramCache]: Analyzing trace with hash 1717911347, now seen corresponding path program 1 times [2020-11-29 22:16:46,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:16:46,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412015874] [2020-11-29 22:16:46,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:16:46,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:16:49,447 INFO L134 CoverageAnalysis]: Checked inductivity of 4494 backedges. 2598 proven. 277 refuted. 0 times theorem prover too weak. 1619 trivial. 0 not checked. [2020-11-29 22:16:49,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412015874] [2020-11-29 22:16:49,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798120767] [2020-11-29 22:16:49,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bbf69287-8f32-4ed7-9427-d24461567326/bin/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:16:49,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:16:49,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 1587 conjuncts, 21 conjunts are in the unsatisfiable core [2020-11-29 22:16:49,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:16:49,923 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-29 22:16:49,925 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:16:49,957 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:16:49,959 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:16:49,970 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:16:50,136 INFO L603 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-11-29 22:16:50,137 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 22:16:50,140 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:16:50,142 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 22:16:52,783 INFO L134 CoverageAnalysis]: Checked inductivity of 4494 backedges. 2985 proven. 353 refuted. 0 times theorem prover too weak. 1156 trivial. 0 not checked. [2020-11-29 22:16:52,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 22:16:52,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8] total 9 [2020-11-29 22:16:52,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299620308] [2020-11-29 22:16:52,786 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 22:16:52,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:16:52,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 22:16:52,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-11-29 22:16:52,786 INFO L87 Difference]: Start difference. First operand 30986 states and 32770 transitions. Second operand 10 states. [2020-11-29 22:17:00,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:17:00,473 INFO L93 Difference]: Finished difference Result 61926 states and 65464 transitions. [2020-11-29 22:17:00,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-11-29 22:17:00,474 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1263 [2020-11-29 22:17:00,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:17:00,491 INFO L225 Difference]: With dead ends: 61926 [2020-11-29 22:17:00,491 INFO L226 Difference]: Without dead ends: 19891 [2020-11-29 22:17:00,504 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1280 GetRequests, 1258 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=144, Invalid=362, Unknown=0, NotChecked=0, Total=506 [2020-11-29 22:17:00,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19891 states. [2020-11-29 22:17:00,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19891 to 10901. [2020-11-29 22:17:00,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10901 states. [2020-11-29 22:17:00,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10901 states to 10901 states and 11309 transitions. [2020-11-29 22:17:00,664 INFO L78 Accepts]: Start accepts. Automaton has 10901 states and 11309 transitions. Word has length 1263 [2020-11-29 22:17:00,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:17:00,665 INFO L481 AbstractCegarLoop]: Abstraction has 10901 states and 11309 transitions. [2020-11-29 22:17:00,665 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 22:17:00,665 INFO L276 IsEmpty]: Start isEmpty. Operand 10901 states and 11309 transitions. [2020-11-29 22:17:00,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1377 [2020-11-29 22:17:00,677 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:17:00,677 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-29 22:17:00,879 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2020-11-29 22:17:00,880 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:17:00,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:17:00,880 INFO L82 PathProgramCache]: Analyzing trace with hash 100314702, now seen corresponding path program 1 times [2020-11-29 22:17:00,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:17:00,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989886514] [2020-11-29 22:17:00,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:17:00,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:17:04,472 INFO L134 CoverageAnalysis]: Checked inductivity of 5491 backedges. 3560 proven. 312 refuted. 0 times theorem prover too weak. 1619 trivial. 0 not checked. [2020-11-29 22:17:04,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989886514] [2020-11-29 22:17:04,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996383986] [2020-11-29 22:17:04,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bbf69287-8f32-4ed7-9427-d24461567326/bin/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:17:04,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:17:04,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 1724 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 22:17:04,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:17:06,292 INFO L134 CoverageAnalysis]: Checked inductivity of 5491 backedges. 3429 proven. 0 refuted. 0 times theorem prover too weak. 2062 trivial. 0 not checked. [2020-11-29 22:17:06,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 22:17:06,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2020-11-29 22:17:06,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593893082] [2020-11-29 22:17:06,294 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 22:17:06,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:17:06,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 22:17:06,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-11-29 22:17:06,295 INFO L87 Difference]: Start difference. First operand 10901 states and 11309 transitions. Second operand 4 states. [2020-11-29 22:17:07,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:17:07,484 INFO L93 Difference]: Finished difference Result 13314 states and 13775 transitions. [2020-11-29 22:17:07,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 22:17:07,485 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1376 [2020-11-29 22:17:07,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:17:07,486 INFO L225 Difference]: With dead ends: 13314 [2020-11-29 22:17:07,486 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 22:17:07,489 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1381 GetRequests, 1374 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-11-29 22:17:07,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 22:17:07,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 22:17:07,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 22:17:07,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 22:17:07,490 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1376 [2020-11-29 22:17:07,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:17:07,490 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:17:07,490 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 22:17:07,490 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 22:17:07,490 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 22:17:07,690 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:17:07,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 22:17:20,684 WARN L193 SmtUtils]: Spent 12.98 s on a formula simplification. DAG size of input: 2252 DAG size of output: 1661 [2020-11-29 22:17:32,635 WARN L193 SmtUtils]: Spent 11.94 s on a formula simplification. DAG size of input: 2249 DAG size of output: 1661 [2020-11-29 22:18:17,687 WARN L193 SmtUtils]: Spent 45.03 s on a formula simplification. DAG size of input: 1494 DAG size of output: 173 [2020-11-29 22:18:53,835 WARN L193 SmtUtils]: Spent 36.14 s on a formula simplification. DAG size of input: 1494 DAG size of output: 173 [2020-11-29 22:18:53,839 INFO L274 CegarLoopResult]: For program point L498(lines 498 509) no Hoare annotation was computed. [2020-11-29 22:18:53,839 INFO L274 CegarLoopResult]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,839 INFO L274 CegarLoopResult]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2020-11-29 22:18:53,839 INFO L274 CegarLoopResult]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,839 INFO L274 CegarLoopResult]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,839 INFO L274 CegarLoopResult]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,839 INFO L274 CegarLoopResult]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,839 INFO L274 CegarLoopResult]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,840 INFO L274 CegarLoopResult]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,840 INFO L274 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-11-29 22:18:53,840 INFO L274 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-11-29 22:18:53,840 INFO L274 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-11-29 22:18:53,840 INFO L274 CegarLoopResult]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,840 INFO L274 CegarLoopResult]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,840 INFO L274 CegarLoopResult]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,840 INFO L274 CegarLoopResult]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,840 INFO L274 CegarLoopResult]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,840 INFO L274 CegarLoopResult]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,840 INFO L274 CegarLoopResult]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,840 INFO L274 CegarLoopResult]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,840 INFO L274 CegarLoopResult]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,840 INFO L274 CegarLoopResult]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,840 INFO L274 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-11-29 22:18:53,840 INFO L274 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-11-29 22:18:53,840 INFO L274 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-11-29 22:18:53,840 INFO L274 CegarLoopResult]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,840 INFO L274 CegarLoopResult]: For program point L768(lines 768 778) no Hoare annotation was computed. [2020-11-29 22:18:53,840 INFO L274 CegarLoopResult]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2020-11-29 22:18:53,840 INFO L274 CegarLoopResult]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,840 INFO L274 CegarLoopResult]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,840 INFO L274 CegarLoopResult]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,840 INFO L274 CegarLoopResult]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,841 INFO L274 CegarLoopResult]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,841 INFO L274 CegarLoopResult]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,841 INFO L274 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-11-29 22:18:53,841 INFO L274 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-11-29 22:18:53,841 INFO L274 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-11-29 22:18:53,841 INFO L274 CegarLoopResult]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,841 INFO L274 CegarLoopResult]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,841 INFO L274 CegarLoopResult]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,841 INFO L270 CegarLoopResult]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse9 (= ~a4~0 1)) (.cse4 (= ~a25~0 12)) (.cse16 (<= ~a25~0 10)) (.cse27 (<= 115953 ~a29~0)) (.cse28 (+ ~a23~0 599772))) (let ((.cse7 (let ((.cse29 (<= .cse28 0))) (or (and (<= 260 ~a29~0) .cse29 .cse4) (and .cse16 .cse29 .cse27)))) (.cse25 (<= ~a23~0 312)) (.cse1 (<= 0 .cse28)) (.cse13 (= ~a25~0 13)) (.cse12 (<= 253 ~a29~0)) (.cse14 (<= 307 ~a23~0)) (.cse5 (<= 246 ~a29~0)) (.cse24 (<= 21782 ~a23~0)) (.cse26 (<= ~a29~0 245)) (.cse0 (<= ~a29~0 275)) (.cse21 (<= ~a4~0 0)) (.cse23 (< 140 ~a29~0)) (.cse11 (<= 130 ~a29~0)) (.cse22 (<= ~a29~0 130)) (.cse15 (<= ~a23~0 600000)) (.cse8 (= ~a25~0 10)) (.cse2 (<= ~a23~0 247)) (.cse10 (= ~a25~0 11)) (.cse17 (<= 0 (+ ~a29~0 589264))) (.cse18 (<= ~a29~0 140)) (.cse3 (= ~a8~0 15)) (.cse19 (not .cse9)) (.cse6 (= ~a3~0 1)) (.cse20 (<= (+ ~a23~0 55) 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse8 .cse9) (and .cse0 .cse10 .cse2 .cse11 .cse3 .cse9) (and .cse0 .cse10 .cse1 .cse2 .cse3 .cse12 .cse6) (and .cse13 .cse14 .cse3 .cse15 .cse9 .cse6) (and .cse16 .cse17 .cse18 .cse3 .cse19 .cse6 .cse20) (and .cse1 .cse21 (not (= 6 ULTIMATE.start_calculate_output_~input)) .cse17 .cse3 .cse4 (not (= 3 ULTIMATE.start_calculate_output_~input)) (<= (+ ~a29~0 580291) 0) .cse6 .cse20) (and .cse13 .cse2 .cse22 .cse3 .cse9) (and .cse0 .cse13 .cse23 .cse3 .cse15 .cse9 .cse6) (and .cse1 .cse2 .cse3 .cse4 .cse9 .cse6) (and (or (and .cse10 .cse23 .cse3 .cse24 .cse15 .cse9 .cse6) (and .cse23 .cse3 .cse24 .cse4 .cse15 .cse9 (<= ~a29~0 232) .cse6) (and .cse10 (<= 192 ~a29~0) .cse25 .cse3 .cse9 .cse6) (and .cse23 .cse14 .cse3 .cse4 (<= ~a29~0 220) .cse15 .cse9 .cse6)) .cse26) (and (= ~a25~0 9) (<= ~a23~0 306) .cse1 .cse18 .cse3 .cse9 .cse6) (and .cse8 .cse3 .cse15 .cse9 .cse6) (and .cse7 .cse3 .cse9 .cse6) (and .cse3 (or (and .cse1 .cse13 .cse25 (<= 93781 ~a29~0) .cse9) (and .cse16 .cse1 .cse2 .cse5 .cse9)) .cse6) (and .cse10 .cse3 .cse27 .cse15 .cse9 .cse6) (and .cse0 .cse1 .cse13 .cse2 .cse3 .cse12 .cse6) (and (<= 10250 ~a29~0) (<= ~a25~0 9) .cse2 .cse3 .cse6) (and .cse0 .cse2 .cse3 .cse19 .cse4 .cse12 .cse6) (and .cse16 .cse14 .cse3 .cse15 .cse9 .cse5 .cse6) (and .cse10 .cse14 .cse3 .cse15 .cse9 .cse5 .cse6) (and .cse0 .cse10 .cse3 .cse15 .cse9 .cse5 .cse6) (and .cse10 .cse2 .cse3 .cse27 .cse9) (and .cse0 .cse21 .cse11 .cse3 .cse4 .cse5 .cse6) (and .cse16 .cse3 .cse12 .cse15 .cse9 .cse6) (and .cse14 .cse3 .cse4 .cse15 .cse9 .cse5 .cse6) (and .cse16 .cse23 .cse3 .cse24 .cse26 .cse9 .cse6) (and .cse0 .cse21 .cse23 .cse11 .cse3 .cse4 .cse6 .cse20) (and .cse2 .cse3 (or (and .cse16 .cse22) (and .cse22 .cse4)) .cse9) (and (<= 312 ~a23~0) .cse3 .cse27 .cse15 .cse9 .cse6) (and .cse8 .cse2 .cse3 .cse9) (and .cse10 .cse17 .cse18 .cse3 .cse19 .cse6 .cse20)))) [2020-11-29 22:18:53,841 INFO L274 CegarLoopResult]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,841 INFO L274 CegarLoopResult]: For program point L705(lines 705 715) no Hoare annotation was computed. [2020-11-29 22:18:53,841 INFO L274 CegarLoopResult]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2020-11-29 22:18:53,841 INFO L274 CegarLoopResult]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,841 INFO L274 CegarLoopResult]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,842 INFO L274 CegarLoopResult]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,842 INFO L274 CegarLoopResult]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,842 INFO L274 CegarLoopResult]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,842 INFO L274 CegarLoopResult]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,842 INFO L274 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-11-29 22:18:53,842 INFO L274 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-11-29 22:18:53,842 INFO L274 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-11-29 22:18:53,842 INFO L277 CegarLoopResult]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2020-11-29 22:18:53,842 INFO L274 CegarLoopResult]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,842 INFO L274 CegarLoopResult]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,842 INFO L274 CegarLoopResult]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,842 INFO L274 CegarLoopResult]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,842 INFO L274 CegarLoopResult]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,842 INFO L274 CegarLoopResult]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,842 INFO L274 CegarLoopResult]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,842 INFO L274 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-11-29 22:18:53,842 INFO L274 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-11-29 22:18:53,842 INFO L274 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-11-29 22:18:53,842 INFO L274 CegarLoopResult]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,842 INFO L274 CegarLoopResult]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,842 INFO L274 CegarLoopResult]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,842 INFO L274 CegarLoopResult]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,842 INFO L274 CegarLoopResult]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,842 INFO L274 CegarLoopResult]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,842 INFO L274 CegarLoopResult]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,842 INFO L274 CegarLoopResult]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,842 INFO L274 CegarLoopResult]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,843 INFO L274 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-11-29 22:18:53,843 INFO L274 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-11-29 22:18:53,843 INFO L274 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-11-29 22:18:53,843 INFO L274 CegarLoopResult]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,843 INFO L270 CegarLoopResult]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse9 (= ~a4~0 1)) (.cse4 (= ~a25~0 12)) (.cse16 (<= ~a25~0 10)) (.cse27 (<= 115953 ~a29~0)) (.cse28 (+ ~a23~0 599772))) (let ((.cse7 (let ((.cse29 (<= .cse28 0))) (or (and (<= 260 ~a29~0) .cse29 .cse4) (and .cse16 .cse29 .cse27)))) (.cse25 (<= ~a23~0 312)) (.cse1 (<= 0 .cse28)) (.cse13 (= ~a25~0 13)) (.cse12 (<= 253 ~a29~0)) (.cse14 (<= 307 ~a23~0)) (.cse5 (<= 246 ~a29~0)) (.cse24 (<= 21782 ~a23~0)) (.cse26 (<= ~a29~0 245)) (.cse0 (<= ~a29~0 275)) (.cse21 (<= ~a4~0 0)) (.cse23 (< 140 ~a29~0)) (.cse11 (<= 130 ~a29~0)) (.cse22 (<= ~a29~0 130)) (.cse15 (<= ~a23~0 600000)) (.cse8 (= ~a25~0 10)) (.cse2 (<= ~a23~0 247)) (.cse10 (= ~a25~0 11)) (.cse17 (<= 0 (+ ~a29~0 589264))) (.cse18 (<= ~a29~0 140)) (.cse3 (= ~a8~0 15)) (.cse19 (not .cse9)) (.cse6 (= ~a3~0 1)) (.cse20 (<= (+ ~a23~0 55) 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse8 .cse9) (and .cse0 .cse10 .cse2 .cse11 .cse3 .cse9) (and .cse0 .cse10 .cse1 .cse2 .cse3 .cse12 .cse6) (and .cse13 .cse14 .cse3 .cse15 .cse9 .cse6) (and .cse16 .cse17 .cse18 .cse3 .cse19 .cse6 .cse20) (and .cse1 .cse21 (not (= 6 ULTIMATE.start_calculate_output_~input)) .cse17 .cse3 .cse4 (not (= 3 ULTIMATE.start_calculate_output_~input)) (<= (+ ~a29~0 580291) 0) .cse6 .cse20) (and .cse13 .cse2 .cse22 .cse3 .cse9) (and .cse0 .cse13 .cse23 .cse3 .cse15 .cse9 .cse6) (and .cse1 .cse2 .cse3 .cse4 .cse9 .cse6) (and (or (and .cse10 .cse23 .cse3 .cse24 .cse15 .cse9 .cse6) (and .cse23 .cse3 .cse24 .cse4 .cse15 .cse9 (<= ~a29~0 232) .cse6) (and .cse10 (<= 192 ~a29~0) .cse25 .cse3 .cse9 .cse6) (and .cse23 .cse14 .cse3 .cse4 (<= ~a29~0 220) .cse15 .cse9 .cse6)) .cse26) (and (= ~a25~0 9) (<= ~a23~0 306) .cse1 .cse18 .cse3 .cse9 .cse6) (and .cse8 .cse3 .cse15 .cse9 .cse6) (and .cse7 .cse3 .cse9 .cse6) (and .cse3 (or (and .cse1 .cse13 .cse25 (<= 93781 ~a29~0) .cse9) (and .cse16 .cse1 .cse2 .cse5 .cse9)) .cse6) (and .cse10 .cse3 .cse27 .cse15 .cse9 .cse6) (and .cse0 .cse1 .cse13 .cse2 .cse3 .cse12 .cse6) (and (<= 10250 ~a29~0) (<= ~a25~0 9) .cse2 .cse3 .cse6) (and .cse0 .cse2 .cse3 .cse19 .cse4 .cse12 .cse6) (and .cse16 .cse14 .cse3 .cse15 .cse9 .cse5 .cse6) (and .cse10 .cse14 .cse3 .cse15 .cse9 .cse5 .cse6) (and .cse0 .cse10 .cse3 .cse15 .cse9 .cse5 .cse6) (and .cse10 .cse2 .cse3 .cse27 .cse9) (and .cse0 .cse21 .cse11 .cse3 .cse4 .cse5 .cse6) (and .cse16 .cse3 .cse12 .cse15 .cse9 .cse6) (and .cse14 .cse3 .cse4 .cse15 .cse9 .cse5 .cse6) (and .cse16 .cse23 .cse3 .cse24 .cse26 .cse9 .cse6) (and .cse0 .cse21 .cse23 .cse11 .cse3 .cse4 .cse6 .cse20) (and .cse2 .cse3 (or (and .cse16 .cse22) (and .cse22 .cse4)) .cse9) (and (<= 312 ~a23~0) .cse3 .cse27 .cse15 .cse9 .cse6) (and .cse8 .cse2 .cse3 .cse9) (and .cse10 .cse17 .cse18 .cse3 .cse19 .cse6 .cse20)))) [2020-11-29 22:18:53,843 INFO L274 CegarLoopResult]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,843 INFO L274 CegarLoopResult]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,843 INFO L274 CegarLoopResult]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,843 INFO L274 CegarLoopResult]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,843 INFO L274 CegarLoopResult]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,843 INFO L274 CegarLoopResult]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,843 INFO L274 CegarLoopResult]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,843 INFO L274 CegarLoopResult]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,843 INFO L274 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-11-29 22:18:53,843 INFO L274 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-11-29 22:18:53,843 INFO L274 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-11-29 22:18:53,843 INFO L274 CegarLoopResult]: For program point L980(lines 980 990) no Hoare annotation was computed. [2020-11-29 22:18:53,844 INFO L274 CegarLoopResult]: For program point L914(lines 914 924) no Hoare annotation was computed. [2020-11-29 22:18:53,844 INFO L274 CegarLoopResult]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2020-11-29 22:18:53,844 INFO L274 CegarLoopResult]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2020-11-29 22:18:53,844 INFO L274 CegarLoopResult]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,844 INFO L274 CegarLoopResult]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,844 INFO L274 CegarLoopResult]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,844 INFO L274 CegarLoopResult]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,844 INFO L274 CegarLoopResult]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,844 INFO L274 CegarLoopResult]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,844 INFO L274 CegarLoopResult]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,844 INFO L274 CegarLoopResult]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,844 INFO L274 CegarLoopResult]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,844 INFO L274 CegarLoopResult]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,844 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 22:18:53,844 INFO L274 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-11-29 22:18:53,844 INFO L274 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-11-29 22:18:53,844 INFO L274 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-11-29 22:18:53,844 INFO L274 CegarLoopResult]: For program point L1049(line 1049) no Hoare annotation was computed. [2020-11-29 22:18:53,848 INFO L274 CegarLoopResult]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,848 INFO L274 CegarLoopResult]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,849 INFO L274 CegarLoopResult]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,849 INFO L274 CegarLoopResult]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,849 INFO L274 CegarLoopResult]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,849 INFO L274 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-11-29 22:18:53,849 INFO L274 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-11-29 22:18:53,849 INFO L274 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-11-29 22:18:53,849 INFO L274 CegarLoopResult]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,849 INFO L274 CegarLoopResult]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,850 INFO L274 CegarLoopResult]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,850 INFO L274 CegarLoopResult]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,850 INFO L274 CegarLoopResult]: For program point L525(lines 525 535) no Hoare annotation was computed. [2020-11-29 22:18:53,850 INFO L274 CegarLoopResult]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2020-11-29 22:18:53,850 INFO L274 CegarLoopResult]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,850 INFO L274 CegarLoopResult]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,850 INFO L274 CegarLoopResult]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,850 INFO L274 CegarLoopResult]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,851 INFO L274 CegarLoopResult]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,851 INFO L274 CegarLoopResult]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,851 INFO L274 CegarLoopResult]: For program point L658(lines 658 667) no Hoare annotation was computed. [2020-11-29 22:18:53,851 INFO L274 CegarLoopResult]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2020-11-29 22:18:53,851 INFO L274 CegarLoopResult]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,851 INFO L274 CegarLoopResult]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,851 INFO L274 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-11-29 22:18:53,851 INFO L274 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-11-29 22:18:53,852 INFO L274 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-11-29 22:18:53,852 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 22:18:53,852 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-29 22:18:53,852 INFO L274 CegarLoopResult]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,852 INFO L274 CegarLoopResult]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,852 INFO L274 CegarLoopResult]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,852 INFO L274 CegarLoopResult]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,852 INFO L274 CegarLoopResult]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,853 INFO L274 CegarLoopResult]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,853 INFO L274 CegarLoopResult]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,853 INFO L274 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-11-29 22:18:53,853 INFO L274 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-11-29 22:18:53,853 INFO L274 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-11-29 22:18:53,853 INFO L274 CegarLoopResult]: For program point L926(lines 926 936) no Hoare annotation was computed. [2020-11-29 22:18:53,853 INFO L274 CegarLoopResult]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2020-11-29 22:18:53,853 INFO L274 CegarLoopResult]: For program point L728(lines 728 740) no Hoare annotation was computed. [2020-11-29 22:18:53,854 INFO L274 CegarLoopResult]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2020-11-29 22:18:53,854 INFO L274 CegarLoopResult]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,854 INFO L274 CegarLoopResult]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,854 INFO L274 CegarLoopResult]: For program point L597(lines 597 607) no Hoare annotation was computed. [2020-11-29 22:18:53,854 INFO L274 CegarLoopResult]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2020-11-29 22:18:53,854 INFO L274 CegarLoopResult]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,854 INFO L274 CegarLoopResult]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,854 INFO L274 CegarLoopResult]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,854 INFO L274 CegarLoopResult]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,855 INFO L274 CegarLoopResult]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,855 INFO L274 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-11-29 22:18:53,855 INFO L274 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-11-29 22:18:53,855 INFO L274 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-11-29 22:18:53,855 INFO L274 CegarLoopResult]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,855 INFO L274 CegarLoopResult]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,855 INFO L274 CegarLoopResult]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,855 INFO L274 CegarLoopResult]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,856 INFO L274 CegarLoopResult]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,856 INFO L274 CegarLoopResult]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,856 INFO L274 CegarLoopResult]: For program point L205(line 205) no Hoare annotation was computed. [2020-11-29 22:18:53,856 INFO L274 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-11-29 22:18:53,856 INFO L274 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-11-29 22:18:53,856 INFO L274 CegarLoopResult]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,856 INFO L274 CegarLoopResult]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,856 INFO L274 CegarLoopResult]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,856 INFO L274 CegarLoopResult]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,857 INFO L274 CegarLoopResult]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,857 INFO L274 CegarLoopResult]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,857 INFO L274 CegarLoopResult]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,857 INFO L274 CegarLoopResult]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,857 INFO L274 CegarLoopResult]: For program point L208(line 208) no Hoare annotation was computed. [2020-11-29 22:18:53,857 INFO L274 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-11-29 22:18:53,857 INFO L274 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-11-29 22:18:53,857 INFO L274 CegarLoopResult]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,857 INFO L274 CegarLoopResult]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,858 INFO L274 CegarLoopResult]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,858 INFO L274 CegarLoopResult]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,858 INFO L274 CegarLoopResult]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,858 INFO L274 CegarLoopResult]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,858 INFO L274 CegarLoopResult]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,858 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-29 22:18:53,858 INFO L274 CegarLoopResult]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,858 INFO L274 CegarLoopResult]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,859 INFO L274 CegarLoopResult]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,859 INFO L274 CegarLoopResult]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,859 INFO L274 CegarLoopResult]: For program point L409(lines 409 420) no Hoare annotation was computed. [2020-11-29 22:18:53,859 INFO L274 CegarLoopResult]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2020-11-29 22:18:53,859 INFO L274 CegarLoopResult]: For program point L211(line 211) no Hoare annotation was computed. [2020-11-29 22:18:53,859 INFO L274 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-11-29 22:18:53,859 INFO L274 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-11-29 22:18:53,859 INFO L274 CegarLoopResult]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,859 INFO L274 CegarLoopResult]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,860 INFO L274 CegarLoopResult]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,860 INFO L274 CegarLoopResult]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,860 INFO L274 CegarLoopResult]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,860 INFO L274 CegarLoopResult]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,860 INFO L274 CegarLoopResult]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,860 INFO L274 CegarLoopResult]: For program point L214(line 214) no Hoare annotation was computed. [2020-11-29 22:18:53,860 INFO L274 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-11-29 22:18:53,860 INFO L274 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-11-29 22:18:53,860 INFO L274 CegarLoopResult]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,861 INFO L274 CegarLoopResult]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,861 INFO L274 CegarLoopResult]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,861 INFO L274 CegarLoopResult]: For program point L876(lines 876 885) no Hoare annotation was computed. [2020-11-29 22:18:53,861 INFO L274 CegarLoopResult]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2020-11-29 22:18:53,861 INFO L274 CegarLoopResult]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,861 INFO L274 CegarLoopResult]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,861 INFO L274 CegarLoopResult]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,861 INFO L274 CegarLoopResult]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,862 INFO L274 CegarLoopResult]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,862 INFO L274 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-11-29 22:18:53,862 INFO L274 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-11-29 22:18:53,862 INFO L274 CegarLoopResult]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,862 INFO L274 CegarLoopResult]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,862 INFO L274 CegarLoopResult]: For program point L614(lines 614 624) no Hoare annotation was computed. [2020-11-29 22:18:53,862 INFO L274 CegarLoopResult]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2020-11-29 22:18:53,862 INFO L274 CegarLoopResult]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,862 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 22:18:53,863 INFO L274 CegarLoopResult]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,863 INFO L274 CegarLoopResult]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,863 INFO L274 CegarLoopResult]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,863 INFO L274 CegarLoopResult]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,863 INFO L274 CegarLoopResult]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,863 INFO L274 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-11-29 22:18:53,863 INFO L274 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-11-29 22:18:53,863 INFO L274 CegarLoopResult]: For program point L815(lines 815 825) no Hoare annotation was computed. [2020-11-29 22:18:53,863 INFO L274 CegarLoopResult]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2020-11-29 22:18:53,864 INFO L274 CegarLoopResult]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,864 INFO L274 CegarLoopResult]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,864 INFO L274 CegarLoopResult]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,864 INFO L274 CegarLoopResult]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,864 INFO L274 CegarLoopResult]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,864 INFO L274 CegarLoopResult]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,864 INFO L274 CegarLoopResult]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,865 INFO L274 CegarLoopResult]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,865 INFO L274 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-11-29 22:18:53,866 INFO L274 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-11-29 22:18:53,866 INFO L274 CegarLoopResult]: For program point L950(lines 950 962) no Hoare annotation was computed. [2020-11-29 22:18:53,866 INFO L274 CegarLoopResult]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2020-11-29 22:18:53,867 INFO L274 CegarLoopResult]: For program point L488(lines 488 496) no Hoare annotation was computed. [2020-11-29 22:18:53,867 INFO L274 CegarLoopResult]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2020-11-29 22:18:53,867 INFO L274 CegarLoopResult]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,868 INFO L274 CegarLoopResult]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,868 INFO L274 CegarLoopResult]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,868 INFO L274 CegarLoopResult]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,871 INFO L274 CegarLoopResult]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,871 INFO L274 CegarLoopResult]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,871 INFO L274 CegarLoopResult]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,871 INFO L274 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-11-29 22:18:53,871 INFO L274 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-11-29 22:18:53,872 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 22:18:53,872 INFO L274 CegarLoopResult]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,873 INFO L274 CegarLoopResult]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,873 INFO L274 CegarLoopResult]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,873 INFO L274 CegarLoopResult]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,873 INFO L274 CegarLoopResult]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,873 INFO L274 CegarLoopResult]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,873 INFO L274 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-11-29 22:18:53,873 INFO L274 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-11-29 22:18:53,874 INFO L274 CegarLoopResult]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,874 INFO L274 CegarLoopResult]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,874 INFO L274 CegarLoopResult]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,874 INFO L274 CegarLoopResult]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,874 INFO L274 CegarLoopResult]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,874 INFO L274 CegarLoopResult]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,874 INFO L274 CegarLoopResult]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,874 INFO L274 CegarLoopResult]: For program point L33(lines 33 35) no Hoare annotation was computed. [2020-11-29 22:18:53,875 INFO L274 CegarLoopResult]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:18:53,875 INFO L274 CegarLoopResult]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,875 INFO L274 CegarLoopResult]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,875 INFO L274 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-11-29 22:18:53,875 INFO L274 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-11-29 22:18:53,875 INFO L274 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-11-29 22:18:53,875 INFO L274 CegarLoopResult]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2020-11-29 22:18:53,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 10:18:53 BoogieIcfgContainer [2020-11-29 22:18:53,952 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 22:18:53,953 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:18:53,953 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:18:53,953 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:18:53,954 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:13:25" (3/4) ... [2020-11-29 22:18:53,957 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 22:18:53,995 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 22:18:53,998 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 22:18:54,000 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 22:18:54,002 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 22:18:54,180 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_bbf69287-8f32-4ed7-9427-d24461567326/bin/uautomizer/witness.graphml [2020-11-29 22:18:54,180 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:18:54,181 INFO L168 Benchmark]: Toolchain (without parser) took 332424.16 ms. Allocated memory was 107.0 MB in the beginning and 4.2 GB in the end (delta: 4.1 GB). Free memory was 77.1 MB in the beginning and 3.3 GB in the end (delta: -3.2 GB). Peak memory consumption was 890.8 MB. Max. memory is 16.1 GB. [2020-11-29 22:18:54,182 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 107.0 MB. Free memory is still 62.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:18:54,182 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1032.21 ms. Allocated memory was 107.0 MB in the beginning and 136.3 MB in the end (delta: 29.4 MB). Free memory was 76.9 MB in the beginning and 106.4 MB in the end (delta: -29.5 MB). Peak memory consumption was 32.6 MB. Max. memory is 16.1 GB. [2020-11-29 22:18:54,183 INFO L168 Benchmark]: Boogie Procedure Inliner took 191.52 ms. Allocated memory is still 136.3 MB. Free memory was 106.4 MB in the beginning and 89.6 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-29 22:18:54,183 INFO L168 Benchmark]: Boogie Preprocessor took 183.43 ms. Allocated memory is still 136.3 MB. Free memory was 89.6 MB in the beginning and 79.1 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 22:18:54,184 INFO L168 Benchmark]: RCFGBuilder took 2364.35 ms. Allocated memory was 136.3 MB in the beginning and 197.1 MB in the end (delta: 60.8 MB). Free memory was 79.1 MB in the beginning and 133.6 MB in the end (delta: -54.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 16.1 GB. [2020-11-29 22:18:54,185 INFO L168 Benchmark]: TraceAbstraction took 328416.12 ms. Allocated memory was 197.1 MB in the beginning and 4.2 GB in the end (delta: 4.0 GB). Free memory was 132.5 MB in the beginning and 3.3 GB in the end (delta: -3.1 GB). Peak memory consumption was 3.0 GB. Max. memory is 16.1 GB. [2020-11-29 22:18:54,185 INFO L168 Benchmark]: Witness Printer took 227.95 ms. Allocated memory is still 4.2 GB. Free memory was 3.3 GB in the beginning and 3.3 GB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-11-29 22:18:54,187 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 107.0 MB. Free memory is still 62.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1032.21 ms. Allocated memory was 107.0 MB in the beginning and 136.3 MB in the end (delta: 29.4 MB). Free memory was 76.9 MB in the beginning and 106.4 MB in the end (delta: -29.5 MB). Peak memory consumption was 32.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 191.52 ms. Allocated memory is still 136.3 MB. Free memory was 106.4 MB in the beginning and 89.6 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 183.43 ms. Allocated memory is still 136.3 MB. Free memory was 89.6 MB in the beginning and 79.1 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2364.35 ms. Allocated memory was 136.3 MB in the beginning and 197.1 MB in the end (delta: 60.8 MB). Free memory was 79.1 MB in the beginning and 133.6 MB in the end (delta: -54.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 328416.12 ms. Allocated memory was 197.1 MB in the beginning and 4.2 GB in the end (delta: 4.0 GB). Free memory was 132.5 MB in the beginning and 3.3 GB in the end (delta: -3.1 GB). Peak memory consumption was 3.0 GB. Max. memory is 16.1 GB. * Witness Printer took 227.95 ms. Allocated memory is still 4.2 GB. Free memory was 3.3 GB in the beginning and 3.3 GB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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: 1038]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((a29 <= 275 && 0 <= a23 + 599772) && a23 <= 247) && a8 == 15) && a25 == 12) && 246 <= a29) && a3 == 1) || (((((260 <= a29 && a23 + 599772 <= 0) && a25 == 12) || ((a25 <= 10 && a23 + 599772 <= 0) && 115953 <= a29)) && a25 == 10) && a4 == 1)) || (((((a29 <= 275 && a25 == 11) && a23 <= 247) && 130 <= a29) && a8 == 15) && a4 == 1)) || ((((((a29 <= 275 && a25 == 11) && 0 <= a23 + 599772) && a23 <= 247) && a8 == 15) && 253 <= a29) && a3 == 1)) || (((((a25 == 13 && 307 <= a23) && a8 == 15) && a23 <= 600000) && a4 == 1) && a3 == 1)) || ((((((a25 <= 10 && 0 <= a29 + 589264) && a29 <= 140) && a8 == 15) && !(a4 == 1)) && a3 == 1) && a23 + 55 <= 0)) || (((((((((0 <= a23 + 599772 && a4 <= 0) && !(6 == input)) && 0 <= a29 + 589264) && a8 == 15) && a25 == 12) && !(3 == input)) && a29 + 580291 <= 0) && a3 == 1) && a23 + 55 <= 0)) || ((((a25 == 13 && a23 <= 247) && a29 <= 130) && a8 == 15) && a4 == 1)) || ((((((a29 <= 275 && a25 == 13) && 140 < a29) && a8 == 15) && a23 <= 600000) && a4 == 1) && a3 == 1)) || (((((0 <= a23 + 599772 && a23 <= 247) && a8 == 15) && a25 == 12) && a4 == 1) && a3 == 1)) || ((((((((((a25 == 11 && 140 < a29) && a8 == 15) && 21782 <= a23) && a23 <= 600000) && a4 == 1) && a3 == 1) || (((((((140 < a29 && a8 == 15) && 21782 <= a23) && a25 == 12) && a23 <= 600000) && a4 == 1) && a29 <= 232) && a3 == 1)) || (((((a25 == 11 && 192 <= a29) && a23 <= 312) && a8 == 15) && a4 == 1) && a3 == 1)) || (((((((140 < a29 && 307 <= a23) && a8 == 15) && a25 == 12) && a29 <= 220) && a23 <= 600000) && a4 == 1) && a3 == 1)) && a29 <= 245)) || ((((((a25 == 9 && a23 <= 306) && 0 <= a23 + 599772) && a29 <= 140) && a8 == 15) && a4 == 1) && a3 == 1)) || ((((a25 == 10 && a8 == 15) && a23 <= 600000) && a4 == 1) && a3 == 1)) || ((((((260 <= a29 && a23 + 599772 <= 0) && a25 == 12) || ((a25 <= 10 && a23 + 599772 <= 0) && 115953 <= a29)) && a8 == 15) && a4 == 1) && a3 == 1)) || ((a8 == 15 && (((((0 <= a23 + 599772 && a25 == 13) && a23 <= 312) && 93781 <= a29) && a4 == 1) || ((((a25 <= 10 && 0 <= a23 + 599772) && a23 <= 247) && 246 <= a29) && a4 == 1))) && a3 == 1)) || (((((a25 == 11 && a8 == 15) && 115953 <= a29) && a23 <= 600000) && a4 == 1) && a3 == 1)) || ((((((a29 <= 275 && 0 <= a23 + 599772) && a25 == 13) && a23 <= 247) && a8 == 15) && 253 <= a29) && a3 == 1)) || ((((10250 <= a29 && a25 <= 9) && a23 <= 247) && a8 == 15) && a3 == 1)) || ((((((a29 <= 275 && a23 <= 247) && a8 == 15) && !(a4 == 1)) && a25 == 12) && 253 <= a29) && a3 == 1)) || ((((((a25 <= 10 && 307 <= a23) && a8 == 15) && a23 <= 600000) && a4 == 1) && 246 <= a29) && a3 == 1)) || ((((((a25 == 11 && 307 <= a23) && a8 == 15) && a23 <= 600000) && a4 == 1) && 246 <= a29) && a3 == 1)) || ((((((a29 <= 275 && a25 == 11) && a8 == 15) && a23 <= 600000) && a4 == 1) && 246 <= a29) && a3 == 1)) || ((((a25 == 11 && a23 <= 247) && a8 == 15) && 115953 <= a29) && a4 == 1)) || ((((((a29 <= 275 && a4 <= 0) && 130 <= a29) && a8 == 15) && a25 == 12) && 246 <= a29) && a3 == 1)) || (((((a25 <= 10 && a8 == 15) && 253 <= a29) && a23 <= 600000) && a4 == 1) && a3 == 1)) || ((((((307 <= a23 && a8 == 15) && a25 == 12) && a23 <= 600000) && a4 == 1) && 246 <= a29) && a3 == 1)) || ((((((a25 <= 10 && 140 < a29) && a8 == 15) && 21782 <= a23) && a29 <= 245) && a4 == 1) && a3 == 1)) || (((((((a29 <= 275 && a4 <= 0) && 140 < a29) && 130 <= a29) && a8 == 15) && a25 == 12) && a3 == 1) && a23 + 55 <= 0)) || (((a23 <= 247 && a8 == 15) && ((a25 <= 10 && a29 <= 130) || (a29 <= 130 && a25 == 12))) && a4 == 1)) || (((((312 <= a23 && a8 == 15) && 115953 <= a29) && a23 <= 600000) && a4 == 1) && a3 == 1)) || (((a25 == 10 && a23 <= 247) && a8 == 15) && a4 == 1)) || ((((((a25 == 11 && 0 <= a29 + 589264) && a29 <= 140) && a8 == 15) && !(a4 == 1)) && a3 == 1) && a23 + 55 <= 0) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((a29 <= 275 && 0 <= a23 + 599772) && a23 <= 247) && a8 == 15) && a25 == 12) && 246 <= a29) && a3 == 1) || (((((260 <= a29 && a23 + 599772 <= 0) && a25 == 12) || ((a25 <= 10 && a23 + 599772 <= 0) && 115953 <= a29)) && a25 == 10) && a4 == 1)) || (((((a29 <= 275 && a25 == 11) && a23 <= 247) && 130 <= a29) && a8 == 15) && a4 == 1)) || ((((((a29 <= 275 && a25 == 11) && 0 <= a23 + 599772) && a23 <= 247) && a8 == 15) && 253 <= a29) && a3 == 1)) || (((((a25 == 13 && 307 <= a23) && a8 == 15) && a23 <= 600000) && a4 == 1) && a3 == 1)) || ((((((a25 <= 10 && 0 <= a29 + 589264) && a29 <= 140) && a8 == 15) && !(a4 == 1)) && a3 == 1) && a23 + 55 <= 0)) || (((((((((0 <= a23 + 599772 && a4 <= 0) && !(6 == input)) && 0 <= a29 + 589264) && a8 == 15) && a25 == 12) && !(3 == input)) && a29 + 580291 <= 0) && a3 == 1) && a23 + 55 <= 0)) || ((((a25 == 13 && a23 <= 247) && a29 <= 130) && a8 == 15) && a4 == 1)) || ((((((a29 <= 275 && a25 == 13) && 140 < a29) && a8 == 15) && a23 <= 600000) && a4 == 1) && a3 == 1)) || (((((0 <= a23 + 599772 && a23 <= 247) && a8 == 15) && a25 == 12) && a4 == 1) && a3 == 1)) || ((((((((((a25 == 11 && 140 < a29) && a8 == 15) && 21782 <= a23) && a23 <= 600000) && a4 == 1) && a3 == 1) || (((((((140 < a29 && a8 == 15) && 21782 <= a23) && a25 == 12) && a23 <= 600000) && a4 == 1) && a29 <= 232) && a3 == 1)) || (((((a25 == 11 && 192 <= a29) && a23 <= 312) && a8 == 15) && a4 == 1) && a3 == 1)) || (((((((140 < a29 && 307 <= a23) && a8 == 15) && a25 == 12) && a29 <= 220) && a23 <= 600000) && a4 == 1) && a3 == 1)) && a29 <= 245)) || ((((((a25 == 9 && a23 <= 306) && 0 <= a23 + 599772) && a29 <= 140) && a8 == 15) && a4 == 1) && a3 == 1)) || ((((a25 == 10 && a8 == 15) && a23 <= 600000) && a4 == 1) && a3 == 1)) || ((((((260 <= a29 && a23 + 599772 <= 0) && a25 == 12) || ((a25 <= 10 && a23 + 599772 <= 0) && 115953 <= a29)) && a8 == 15) && a4 == 1) && a3 == 1)) || ((a8 == 15 && (((((0 <= a23 + 599772 && a25 == 13) && a23 <= 312) && 93781 <= a29) && a4 == 1) || ((((a25 <= 10 && 0 <= a23 + 599772) && a23 <= 247) && 246 <= a29) && a4 == 1))) && a3 == 1)) || (((((a25 == 11 && a8 == 15) && 115953 <= a29) && a23 <= 600000) && a4 == 1) && a3 == 1)) || ((((((a29 <= 275 && 0 <= a23 + 599772) && a25 == 13) && a23 <= 247) && a8 == 15) && 253 <= a29) && a3 == 1)) || ((((10250 <= a29 && a25 <= 9) && a23 <= 247) && a8 == 15) && a3 == 1)) || ((((((a29 <= 275 && a23 <= 247) && a8 == 15) && !(a4 == 1)) && a25 == 12) && 253 <= a29) && a3 == 1)) || ((((((a25 <= 10 && 307 <= a23) && a8 == 15) && a23 <= 600000) && a4 == 1) && 246 <= a29) && a3 == 1)) || ((((((a25 == 11 && 307 <= a23) && a8 == 15) && a23 <= 600000) && a4 == 1) && 246 <= a29) && a3 == 1)) || ((((((a29 <= 275 && a25 == 11) && a8 == 15) && a23 <= 600000) && a4 == 1) && 246 <= a29) && a3 == 1)) || ((((a25 == 11 && a23 <= 247) && a8 == 15) && 115953 <= a29) && a4 == 1)) || ((((((a29 <= 275 && a4 <= 0) && 130 <= a29) && a8 == 15) && a25 == 12) && 246 <= a29) && a3 == 1)) || (((((a25 <= 10 && a8 == 15) && 253 <= a29) && a23 <= 600000) && a4 == 1) && a3 == 1)) || ((((((307 <= a23 && a8 == 15) && a25 == 12) && a23 <= 600000) && a4 == 1) && 246 <= a29) && a3 == 1)) || ((((((a25 <= 10 && 140 < a29) && a8 == 15) && 21782 <= a23) && a29 <= 245) && a4 == 1) && a3 == 1)) || (((((((a29 <= 275 && a4 <= 0) && 140 < a29) && 130 <= a29) && a8 == 15) && a25 == 12) && a3 == 1) && a23 + 55 <= 0)) || (((a23 <= 247 && a8 == 15) && ((a25 <= 10 && a29 <= 130) || (a29 <= 130 && a25 == 12))) && a4 == 1)) || (((((312 <= a23 && a8 == 15) && 115953 <= a29) && a23 <= 600000) && a4 == 1) && a3 == 1)) || (((a25 == 10 && a23 <= 247) && a8 == 15) && a4 == 1)) || ((((((a25 == 11 && 0 <= a29 + 589264) && a29 <= 140) && a8 == 15) && !(a4 == 1)) && a3 == 1) && a23 + 55 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 284 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 222.0s, OverallIterations: 35, TraceHistogramMax: 11, AutomataDifference: 168.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 106.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5133 SDtfs, 12444 SDslu, 1334 SDs, 0 SdLazy, 42108 SolverSat, 6028 SolverUnsat, 46 SolverUnknown, 0 SolverNotchecked, 127.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5981 GetRequests, 5832 SyntacticMatches, 7 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 8.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45744occurred in iteration=31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 12.5s AutomataMinimizationTime, 35 MinimizatonAttempts, 88591 StatesRemovedByMinimization, 33 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 353 NumberOfFragments, 1643 HoareAnnotationTreeSize, 3 FomulaSimplifications, 46481253 FormulaSimplificationTreeSizeReduction, 24.9s HoareSimplificationTime, 3 FomulaSimplificationsInter, 16667590 FormulaSimplificationTreeSizeReductionInter, 81.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.0s SsaConstructionTime, 3.4s SatisfiabilityAnalysisTime, 21.0s InterpolantComputationTime, 21177 NumberOfCodeBlocks, 21177 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 21133 ConstructedInterpolants, 50 QuantifiedInterpolants, 59530376 SizeOfPredicates, 19 NumberOfNonLiveVariables, 7680 ConjunctsInSsa, 67 ConjunctsInUnsatCore, 44 InterpolantComputations, 30 PerfectInterpolantSequences, 40063/42555 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! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...