./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label21.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_d9b56200-dd40-4a36-b8c1-c56432954abc/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d9b56200-dd40-4a36-b8c1-c56432954abc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d9b56200-dd40-4a36-b8c1-c56432954abc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d9b56200-dd40-4a36-b8c1-c56432954abc/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label21.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d9b56200-dd40-4a36-b8c1-c56432954abc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d9b56200-dd40-4a36-b8c1-c56432954abc/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 d3804549b6c7e3708a3a10405378969e3630e9ce ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 20:23:59,195 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:23:59,197 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:23:59,257 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:23:59,258 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:23:59,265 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:23:59,270 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:23:59,275 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:23:59,289 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:23:59,297 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:23:59,298 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:23:59,301 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:23:59,302 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:23:59,306 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:23:59,313 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:23:59,317 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:23:59,318 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:23:59,321 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:23:59,328 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:23:59,338 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:23:59,341 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:23:59,343 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:23:59,345 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:23:59,348 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:23:59,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:23:59,360 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:23:59,360 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:23:59,363 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:23:59,364 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:23:59,366 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:23:59,366 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:23:59,368 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:23:59,371 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:23:59,373 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:23:59,374 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:23:59,375 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:23:59,376 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:23:59,377 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:23:59,377 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:23:59,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:23:59,381 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:23:59,385 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d9b56200-dd40-4a36-b8c1-c56432954abc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 20:23:59,427 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:23:59,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:23:59,428 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:23:59,429 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:23:59,429 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:23:59,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:23:59,430 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:23:59,430 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:23:59,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:23:59,431 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:23:59,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 20:23:59,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:23:59,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 20:23:59,432 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:23:59,432 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:23:59,432 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:23:59,433 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 20:23:59,433 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:23:59,433 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:23:59,433 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:23:59,434 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 20:23:59,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:23:59,434 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:23:59,435 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:23:59,435 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 20:23:59,435 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:23:59,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 20:23:59,436 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 20:23:59,436 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:23:59,436 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_d9b56200-dd40-4a36-b8c1-c56432954abc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d9b56200-dd40-4a36-b8c1-c56432954abc/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3804549b6c7e3708a3a10405378969e3630e9ce [2020-11-29 20:23:59,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:23:59,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:23:59,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:23:59,897 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:23:59,899 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:23:59,900 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d9b56200-dd40-4a36-b8c1-c56432954abc/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem14_label21.c [2020-11-29 20:24:00,025 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d9b56200-dd40-4a36-b8c1-c56432954abc/bin/uautomizer/data/d6dc44c28/4f6461f8d5d54898a52bbbfc21776a4b/FLAGf45d7df07 [2020-11-29 20:24:00,970 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:24:00,970 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d9b56200-dd40-4a36-b8c1-c56432954abc/sv-benchmarks/c/eca-rers2012/Problem14_label21.c [2020-11-29 20:24:00,995 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d9b56200-dd40-4a36-b8c1-c56432954abc/bin/uautomizer/data/d6dc44c28/4f6461f8d5d54898a52bbbfc21776a4b/FLAGf45d7df07 [2020-11-29 20:24:01,120 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d9b56200-dd40-4a36-b8c1-c56432954abc/bin/uautomizer/data/d6dc44c28/4f6461f8d5d54898a52bbbfc21776a4b [2020-11-29 20:24:01,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:24:01,124 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:24:01,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:24:01,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:24:01,135 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:24:01,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:24:01" (1/1) ... [2020-11-29 20:24:01,139 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3994a893 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:01, skipping insertion in model container [2020-11-29 20:24:01,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:24:01" (1/1) ... [2020-11-29 20:24:01,153 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:24:01,234 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:24:01,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:24:01,851 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:24:02,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:24:02,115 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:24:02,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:02 WrapperNode [2020-11-29 20:24:02,118 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:24:02,119 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:24:02,120 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:24:02,120 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:24:02,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:02" (1/1) ... [2020-11-29 20:24:02,170 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:02" (1/1) ... [2020-11-29 20:24:02,285 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:24:02,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:24:02,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:24:02,289 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:24:02,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:02" (1/1) ... [2020-11-29 20:24:02,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:02" (1/1) ... [2020-11-29 20:24:02,317 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:02" (1/1) ... [2020-11-29 20:24:02,317 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:02" (1/1) ... [2020-11-29 20:24:02,374 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:02" (1/1) ... [2020-11-29 20:24:02,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:02" (1/1) ... [2020-11-29 20:24:02,402 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:02" (1/1) ... [2020-11-29 20:24:02,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:24:02,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:24:02,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:24:02,435 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:24:02,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d9b56200-dd40-4a36-b8c1-c56432954abc/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 20:24:02,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:24:02,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:24:02,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:24:02,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:24:04,755 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:24:04,755 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 20:24:04,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:24:04 BoogieIcfgContainer [2020-11-29 20:24:04,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:24:04,765 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 20:24:04,766 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 20:24:04,771 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 20:24:04,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 08:24:01" (1/3) ... [2020-11-29 20:24:04,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e36cbdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:24:04, skipping insertion in model container [2020-11-29 20:24:04,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:02" (2/3) ... [2020-11-29 20:24:04,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e36cbdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:24:04, skipping insertion in model container [2020-11-29 20:24:04,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:24:04" (3/3) ... [2020-11-29 20:24:04,775 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label21.c [2020-11-29 20:24:04,790 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 20:24:04,796 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 20:24:04,812 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 20:24:04,846 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 20:24:04,846 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 20:24:04,846 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 20:24:04,847 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:24:04,847 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:24:04,847 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 20:24:04,847 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:24:04,847 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 20:24:04,874 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states. [2020-11-29 20:24:04,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-11-29 20:24:04,882 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:24:04,884 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] [2020-11-29 20:24:04,884 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:24:04,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:04,892 INFO L82 PathProgramCache]: Analyzing trace with hash 1089129850, now seen corresponding path program 1 times [2020-11-29 20:24:04,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:24:04,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275260642] [2020-11-29 20:24:04,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:24:05,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:05,230 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 20:24:05,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275260642] [2020-11-29 20:24:05,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:24:05,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:24:05,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183134157] [2020-11-29 20:24:05,241 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:24:05,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:24:05,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:24:05,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:24:05,266 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 3 states. [2020-11-29 20:24:06,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:24:06,932 INFO L93 Difference]: Finished difference Result 670 states and 1201 transitions. [2020-11-29 20:24:06,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:24:06,935 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2020-11-29 20:24:06,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:24:06,978 INFO L225 Difference]: With dead ends: 670 [2020-11-29 20:24:06,979 INFO L226 Difference]: Without dead ends: 360 [2020-11-29 20:24:06,984 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 20:24:07,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-11-29 20:24:07,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2020-11-29 20:24:07,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-11-29 20:24:07,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 588 transitions. [2020-11-29 20:24:07,089 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 588 transitions. Word has length 34 [2020-11-29 20:24:07,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:24:07,090 INFO L481 AbstractCegarLoop]: Abstraction has 360 states and 588 transitions. [2020-11-29 20:24:07,090 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:24:07,091 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 588 transitions. [2020-11-29 20:24:07,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-11-29 20:24:07,101 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:24:07,102 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:24:07,103 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 20:24:07,103 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:24:07,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:07,108 INFO L82 PathProgramCache]: Analyzing trace with hash -524294510, now seen corresponding path program 1 times [2020-11-29 20:24:07,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:24:07,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241373201] [2020-11-29 20:24:07,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:24:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:07,414 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:24:07,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241373201] [2020-11-29 20:24:07,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:24:07,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:24:07,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334498322] [2020-11-29 20:24:07,418 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:24:07,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:24:07,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:24:07,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:24:07,420 INFO L87 Difference]: Start difference. First operand 360 states and 588 transitions. Second operand 3 states. [2020-11-29 20:24:08,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:24:08,850 INFO L93 Difference]: Finished difference Result 1076 states and 1760 transitions. [2020-11-29 20:24:08,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:24:08,851 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 99 [2020-11-29 20:24:08,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:24:08,857 INFO L225 Difference]: With dead ends: 1076 [2020-11-29 20:24:08,858 INFO L226 Difference]: Without dead ends: 718 [2020-11-29 20:24:08,861 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 20:24:08,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2020-11-29 20:24:08,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 716. [2020-11-29 20:24:08,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2020-11-29 20:24:08,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1017 transitions. [2020-11-29 20:24:08,941 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1017 transitions. Word has length 99 [2020-11-29 20:24:08,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:24:08,942 INFO L481 AbstractCegarLoop]: Abstraction has 716 states and 1017 transitions. [2020-11-29 20:24:08,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:24:08,943 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1017 transitions. [2020-11-29 20:24:08,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-11-29 20:24:08,953 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:24:08,954 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:24:08,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 20:24:08,955 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:24:08,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:08,958 INFO L82 PathProgramCache]: Analyzing trace with hash -1280429143, now seen corresponding path program 1 times [2020-11-29 20:24:08,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:24:08,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567002505] [2020-11-29 20:24:08,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:24:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:09,158 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:24:09,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567002505] [2020-11-29 20:24:09,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:24:09,160 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:24:09,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388050279] [2020-11-29 20:24:09,161 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:24:09,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:24:09,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:24:09,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:24:09,167 INFO L87 Difference]: Start difference. First operand 716 states and 1017 transitions. Second operand 3 states. [2020-11-29 20:24:10,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:24:10,599 INFO L93 Difference]: Finished difference Result 1608 states and 2324 transitions. [2020-11-29 20:24:10,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:24:10,600 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 100 [2020-11-29 20:24:10,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:24:10,605 INFO L225 Difference]: With dead ends: 1608 [2020-11-29 20:24:10,605 INFO L226 Difference]: Without dead ends: 894 [2020-11-29 20:24:10,609 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 20:24:10,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-11-29 20:24:10,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 894. [2020-11-29 20:24:10,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 894 states. [2020-11-29 20:24:10,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1189 transitions. [2020-11-29 20:24:10,649 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1189 transitions. Word has length 100 [2020-11-29 20:24:10,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:24:10,649 INFO L481 AbstractCegarLoop]: Abstraction has 894 states and 1189 transitions. [2020-11-29 20:24:10,650 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:24:10,650 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1189 transitions. [2020-11-29 20:24:10,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-11-29 20:24:10,651 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:24:10,652 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:24:10,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 20:24:10,652 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:24:10,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:10,653 INFO L82 PathProgramCache]: Analyzing trace with hash 788924808, now seen corresponding path program 1 times [2020-11-29 20:24:10,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:24:10,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91265374] [2020-11-29 20:24:10,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:24:10,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:10,882 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:24:10,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91265374] [2020-11-29 20:24:10,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:24:10,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:24:10,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531612629] [2020-11-29 20:24:10,884 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:24:10,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:24:10,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:24:10,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:24:10,886 INFO L87 Difference]: Start difference. First operand 894 states and 1189 transitions. Second operand 4 states. [2020-11-29 20:24:12,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:24:12,686 INFO L93 Difference]: Finished difference Result 2144 states and 2782 transitions. [2020-11-29 20:24:12,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:24:12,687 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 103 [2020-11-29 20:24:12,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:24:12,696 INFO L225 Difference]: With dead ends: 2144 [2020-11-29 20:24:12,697 INFO L226 Difference]: Without dead ends: 1252 [2020-11-29 20:24:12,699 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:24:12,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2020-11-29 20:24:12,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 1250. [2020-11-29 20:24:12,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1250 states. [2020-11-29 20:24:12,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1570 transitions. [2020-11-29 20:24:12,742 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1570 transitions. Word has length 103 [2020-11-29 20:24:12,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:24:12,743 INFO L481 AbstractCegarLoop]: Abstraction has 1250 states and 1570 transitions. [2020-11-29 20:24:12,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:24:12,743 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1570 transitions. [2020-11-29 20:24:12,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-11-29 20:24:12,745 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:24:12,746 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:24:12,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 20:24:12,746 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:24:12,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:12,747 INFO L82 PathProgramCache]: Analyzing trace with hash 225269606, now seen corresponding path program 1 times [2020-11-29 20:24:12,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:24:12,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500761608] [2020-11-29 20:24:12,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:24:12,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:13,041 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:24:13,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500761608] [2020-11-29 20:24:13,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:24:13,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:24:13,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114824797] [2020-11-29 20:24:13,043 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:24:13,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:24:13,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:24:13,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:24:13,045 INFO L87 Difference]: Start difference. First operand 1250 states and 1570 transitions. Second operand 4 states. [2020-11-29 20:24:14,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:24:14,490 INFO L93 Difference]: Finished difference Result 2885 states and 3573 transitions. [2020-11-29 20:24:14,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:24:14,491 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 114 [2020-11-29 20:24:14,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:24:14,502 INFO L225 Difference]: With dead ends: 2885 [2020-11-29 20:24:14,503 INFO L226 Difference]: Without dead ends: 1608 [2020-11-29 20:24:14,505 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 20:24:14,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1608 states. [2020-11-29 20:24:14,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1606. [2020-11-29 20:24:14,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1606 states. [2020-11-29 20:24:14,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1816 transitions. [2020-11-29 20:24:14,556 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1816 transitions. Word has length 114 [2020-11-29 20:24:14,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:24:14,558 INFO L481 AbstractCegarLoop]: Abstraction has 1606 states and 1816 transitions. [2020-11-29 20:24:14,558 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:24:14,558 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1816 transitions. [2020-11-29 20:24:14,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-11-29 20:24:14,562 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:24:14,562 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-29 20:24:14,563 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 20:24:14,563 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:24:14,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:14,564 INFO L82 PathProgramCache]: Analyzing trace with hash -489245868, now seen corresponding path program 1 times [2020-11-29 20:24:14,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:24:14,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311334725] [2020-11-29 20:24:14,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:24:14,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:14,838 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:24:14,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311334725] [2020-11-29 20:24:14,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:24:14,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:24:14,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446013527] [2020-11-29 20:24:14,841 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:24:14,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:24:14,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:24:14,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:24:14,844 INFO L87 Difference]: Start difference. First operand 1606 states and 1816 transitions. Second operand 3 states. [2020-11-29 20:24:15,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:24:15,983 INFO L93 Difference]: Finished difference Result 3922 states and 4494 transitions. [2020-11-29 20:24:15,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:24:15,984 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 208 [2020-11-29 20:24:15,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:24:16,000 INFO L225 Difference]: With dead ends: 3922 [2020-11-29 20:24:16,000 INFO L226 Difference]: Without dead ends: 2318 [2020-11-29 20:24:16,007 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 20:24:16,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2020-11-29 20:24:16,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2140. [2020-11-29 20:24:16,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2140 states. [2020-11-29 20:24:16,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2390 transitions. [2020-11-29 20:24:16,078 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2390 transitions. Word has length 208 [2020-11-29 20:24:16,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:24:16,083 INFO L481 AbstractCegarLoop]: Abstraction has 2140 states and 2390 transitions. [2020-11-29 20:24:16,084 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:24:16,084 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2390 transitions. [2020-11-29 20:24:16,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2020-11-29 20:24:16,090 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:24:16,091 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:24:16,092 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 20:24:16,092 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:24:16,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:16,093 INFO L82 PathProgramCache]: Analyzing trace with hash -984586193, now seen corresponding path program 1 times [2020-11-29 20:24:16,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:24:16,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340704701] [2020-11-29 20:24:16,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:24:16,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:16,633 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2020-11-29 20:24:16,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340704701] [2020-11-29 20:24:16,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:24:16,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:24:16,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727303423] [2020-11-29 20:24:16,635 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:24:16,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:24:16,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:24:16,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:24:16,638 INFO L87 Difference]: Start difference. First operand 2140 states and 2390 transitions. Second operand 4 states. [2020-11-29 20:24:17,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:24:17,974 INFO L93 Difference]: Finished difference Result 4336 states and 4860 transitions. [2020-11-29 20:24:17,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:24:17,979 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 325 [2020-11-29 20:24:17,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:24:17,994 INFO L225 Difference]: With dead ends: 4336 [2020-11-29 20:24:17,994 INFO L226 Difference]: Without dead ends: 2318 [2020-11-29 20:24:17,998 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 20:24:18,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2020-11-29 20:24:18,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2140. [2020-11-29 20:24:18,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2140 states. [2020-11-29 20:24:18,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2305 transitions. [2020-11-29 20:24:18,068 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2305 transitions. Word has length 325 [2020-11-29 20:24:18,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:24:18,069 INFO L481 AbstractCegarLoop]: Abstraction has 2140 states and 2305 transitions. [2020-11-29 20:24:18,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:24:18,070 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2305 transitions. [2020-11-29 20:24:18,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2020-11-29 20:24:18,080 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:24:18,081 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2020-11-29 20:24:18,081 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 20:24:18,081 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:24:18,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:18,082 INFO L82 PathProgramCache]: Analyzing trace with hash -846114252, now seen corresponding path program 1 times [2020-11-29 20:24:18,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:24:18,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015647296] [2020-11-29 20:24:18,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:24:18,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:18,509 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 333 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-11-29 20:24:18,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015647296] [2020-11-29 20:24:18,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:24:18,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:24:18,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273627995] [2020-11-29 20:24:18,511 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:24:18,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:24:18,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:24:18,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:24:18,513 INFO L87 Difference]: Start difference. First operand 2140 states and 2305 transitions. Second operand 3 states. [2020-11-29 20:24:19,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:24:19,632 INFO L93 Difference]: Finished difference Result 4456 states and 4866 transitions. [2020-11-29 20:24:19,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:24:19,642 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 420 [2020-11-29 20:24:19,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:24:19,659 INFO L225 Difference]: With dead ends: 4456 [2020-11-29 20:24:19,660 INFO L226 Difference]: Without dead ends: 2496 [2020-11-29 20:24:19,663 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 20:24:19,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2020-11-29 20:24:19,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 1962. [2020-11-29 20:24:19,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2020-11-29 20:24:19,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2113 transitions. [2020-11-29 20:24:19,730 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2113 transitions. Word has length 420 [2020-11-29 20:24:19,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:24:19,733 INFO L481 AbstractCegarLoop]: Abstraction has 1962 states and 2113 transitions. [2020-11-29 20:24:19,733 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:24:19,734 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2113 transitions. [2020-11-29 20:24:19,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2020-11-29 20:24:19,746 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:24:19,746 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:24:19,747 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 20:24:19,747 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:24:19,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:19,748 INFO L82 PathProgramCache]: Analyzing trace with hash 1481374449, now seen corresponding path program 1 times [2020-11-29 20:24:19,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:24:19,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237935314] [2020-11-29 20:24:19,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:24:19,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:20,285 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 333 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-11-29 20:24:20,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237935314] [2020-11-29 20:24:20,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:24:20,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:24:20,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266757257] [2020-11-29 20:24:20,288 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:24:20,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:24:20,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:24:20,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:24:20,298 INFO L87 Difference]: Start difference. First operand 1962 states and 2113 transitions. Second operand 3 states. [2020-11-29 20:24:21,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:24:21,412 INFO L93 Difference]: Finished difference Result 4456 states and 4867 transitions. [2020-11-29 20:24:21,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:24:21,412 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 427 [2020-11-29 20:24:21,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:24:21,428 INFO L225 Difference]: With dead ends: 4456 [2020-11-29 20:24:21,429 INFO L226 Difference]: Without dead ends: 2674 [2020-11-29 20:24:21,432 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 20:24:21,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2020-11-29 20:24:21,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2496. [2020-11-29 20:24:21,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2496 states. [2020-11-29 20:24:21,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2664 transitions. [2020-11-29 20:24:21,491 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2664 transitions. Word has length 427 [2020-11-29 20:24:21,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:24:21,492 INFO L481 AbstractCegarLoop]: Abstraction has 2496 states and 2664 transitions. [2020-11-29 20:24:21,492 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:24:21,492 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2664 transitions. [2020-11-29 20:24:21,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 583 [2020-11-29 20:24:21,506 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:24:21,506 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, 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, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:24:21,507 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-29 20:24:21,507 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:24:21,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:21,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1016041256, now seen corresponding path program 1 times [2020-11-29 20:24:21,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:24:21,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665092112] [2020-11-29 20:24:21,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:24:21,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:22,209 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2020-11-29 20:24:22,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665092112] [2020-11-29 20:24:22,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:24:22,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:24:22,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361479394] [2020-11-29 20:24:22,213 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:24:22,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:24:22,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:24:22,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:24:22,215 INFO L87 Difference]: Start difference. First operand 2496 states and 2664 transitions. Second operand 3 states. [2020-11-29 20:24:23,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:24:23,212 INFO L93 Difference]: Finished difference Result 5524 states and 5977 transitions. [2020-11-29 20:24:23,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:24:23,214 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 582 [2020-11-29 20:24:23,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:24:23,237 INFO L225 Difference]: With dead ends: 5524 [2020-11-29 20:24:23,237 INFO L226 Difference]: Without dead ends: 3208 [2020-11-29 20:24:23,241 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 20:24:23,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2020-11-29 20:24:23,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3208. [2020-11-29 20:24:23,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3208 states. [2020-11-29 20:24:23,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3417 transitions. [2020-11-29 20:24:23,339 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3417 transitions. Word has length 582 [2020-11-29 20:24:23,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:24:23,341 INFO L481 AbstractCegarLoop]: Abstraction has 3208 states and 3417 transitions. [2020-11-29 20:24:23,341 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:24:23,341 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3417 transitions. [2020-11-29 20:24:23,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 601 [2020-11-29 20:24:23,348 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:24:23,348 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, 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, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:24:23,349 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-29 20:24:23,349 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:24:23,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:23,350 INFO L82 PathProgramCache]: Analyzing trace with hash -794702859, now seen corresponding path program 1 times [2020-11-29 20:24:23,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:24:23,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781663547] [2020-11-29 20:24:23,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:24:23,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:24,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 725 proven. 0 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2020-11-29 20:24:24,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781663547] [2020-11-29 20:24:24,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:24:24,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:24:24,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204712336] [2020-11-29 20:24:24,020 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:24:24,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:24:24,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:24:24,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:24:24,021 INFO L87 Difference]: Start difference. First operand 3208 states and 3417 transitions. Second operand 3 states. [2020-11-29 20:24:25,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:24:25,032 INFO L93 Difference]: Finished difference Result 6948 states and 7475 transitions. [2020-11-29 20:24:25,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:24:25,033 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 600 [2020-11-29 20:24:25,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:24:25,055 INFO L225 Difference]: With dead ends: 6948 [2020-11-29 20:24:25,055 INFO L226 Difference]: Without dead ends: 3920 [2020-11-29 20:24:25,060 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 20:24:25,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2020-11-29 20:24:25,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3564. [2020-11-29 20:24:25,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3564 states. [2020-11-29 20:24:25,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3809 transitions. [2020-11-29 20:24:25,152 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3809 transitions. Word has length 600 [2020-11-29 20:24:25,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:24:25,154 INFO L481 AbstractCegarLoop]: Abstraction has 3564 states and 3809 transitions. [2020-11-29 20:24:25,154 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:24:25,154 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3809 transitions. [2020-11-29 20:24:25,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 624 [2020-11-29 20:24:25,161 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:24:25,162 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, 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, 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, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:24:25,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-29 20:24:25,163 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:24:25,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:25,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1424617051, now seen corresponding path program 1 times [2020-11-29 20:24:25,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:24:25,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532037595] [2020-11-29 20:24:25,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:24:25,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:25,930 INFO L134 CoverageAnalysis]: Checked inductivity of 1226 backedges. 802 proven. 110 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-11-29 20:24:25,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532037595] [2020-11-29 20:24:25,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [436020752] [2020-11-29 20:24:25,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d9b56200-dd40-4a36-b8c1-c56432954abc/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 20:24:26,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:26,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 804 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 20:24:26,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:24:26,820 INFO L134 CoverageAnalysis]: Checked inductivity of 1226 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 1067 trivial. 0 not checked. [2020-11-29 20:24:26,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 20:24:26,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-11-29 20:24:26,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232208496] [2020-11-29 20:24:26,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:24:26,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:24:26,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:24:26,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:24:26,825 INFO L87 Difference]: Start difference. First operand 3564 states and 3809 transitions. Second operand 3 states. [2020-11-29 20:24:28,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:24:28,044 INFO L93 Difference]: Finished difference Result 8016 states and 8557 transitions. [2020-11-29 20:24:28,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:24:28,045 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 623 [2020-11-29 20:24:28,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:24:28,071 INFO L225 Difference]: With dead ends: 8016 [2020-11-29 20:24:28,072 INFO L226 Difference]: Without dead ends: 3742 [2020-11-29 20:24:28,078 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 626 GetRequests, 623 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:24:28,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2020-11-29 20:24:28,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3564. [2020-11-29 20:24:28,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3564 states. [2020-11-29 20:24:28,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3787 transitions. [2020-11-29 20:24:28,191 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3787 transitions. Word has length 623 [2020-11-29 20:24:28,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:24:28,192 INFO L481 AbstractCegarLoop]: Abstraction has 3564 states and 3787 transitions. [2020-11-29 20:24:28,192 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:24:28,193 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3787 transitions. [2020-11-29 20:24:28,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 771 [2020-11-29 20:24:28,203 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:24:28,204 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 4, 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, 1, 1] [2020-11-29 20:24:28,429 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-11-29 20:24:28,429 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:24:28,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:28,430 INFO L82 PathProgramCache]: Analyzing trace with hash -1926861978, now seen corresponding path program 1 times [2020-11-29 20:24:28,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:24:28,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478847843] [2020-11-29 20:24:28,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:24:28,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:29,590 INFO L134 CoverageAnalysis]: Checked inductivity of 1715 backedges. 1214 proven. 155 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2020-11-29 20:24:29,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478847843] [2020-11-29 20:24:29,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636536899] [2020-11-29 20:24:29,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d9b56200-dd40-4a36-b8c1-c56432954abc/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 20:24:29,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:29,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 976 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 20:24:29,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:24:30,623 INFO L134 CoverageAnalysis]: Checked inductivity of 1715 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 1524 trivial. 0 not checked. [2020-11-29 20:24:30,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 20:24:30,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-11-29 20:24:30,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806570257] [2020-11-29 20:24:30,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:24:30,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:24:30,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:24:30,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:24:30,648 INFO L87 Difference]: Start difference. First operand 3564 states and 3787 transitions. Second operand 3 states. [2020-11-29 20:24:31,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:24:31,449 INFO L93 Difference]: Finished difference Result 4456 states and 4726 transitions. [2020-11-29 20:24:31,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:24:31,450 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 770 [2020-11-29 20:24:31,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:24:31,479 INFO L225 Difference]: With dead ends: 4456 [2020-11-29 20:24:31,479 INFO L226 Difference]: Without dead ends: 4454 [2020-11-29 20:24:31,481 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 773 GetRequests, 770 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:24:31,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2020-11-29 20:24:31,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 3564. [2020-11-29 20:24:31,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3564 states. [2020-11-29 20:24:31,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3786 transitions. [2020-11-29 20:24:31,571 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3786 transitions. Word has length 770 [2020-11-29 20:24:31,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:24:31,573 INFO L481 AbstractCegarLoop]: Abstraction has 3564 states and 3786 transitions. [2020-11-29 20:24:31,573 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:24:31,573 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3786 transitions. [2020-11-29 20:24:31,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 779 [2020-11-29 20:24:31,588 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:24:31,589 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 4, 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, 1, 1] [2020-11-29 20:24:31,809 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-11-29 20:24:31,809 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:24:31,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:31,810 INFO L82 PathProgramCache]: Analyzing trace with hash 2044035794, now seen corresponding path program 1 times [2020-11-29 20:24:31,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:24:31,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98536624] [2020-11-29 20:24:31,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:24:31,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:32,729 INFO L134 CoverageAnalysis]: Checked inductivity of 1755 backedges. 1254 proven. 155 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2020-11-29 20:24:32,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98536624] [2020-11-29 20:24:32,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388283346] [2020-11-29 20:24:32,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d9b56200-dd40-4a36-b8c1-c56432954abc/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 20:24:32,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:32,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 983 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 20:24:33,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:24:33,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1755 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 1564 trivial. 0 not checked. [2020-11-29 20:24:33,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 20:24:33,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-11-29 20:24:33,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047760256] [2020-11-29 20:24:33,444 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:24:33,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:24:33,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:24:33,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:24:33,446 INFO L87 Difference]: Start difference. First operand 3564 states and 3786 transitions. Second operand 3 states. [2020-11-29 20:24:34,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:24:34,406 INFO L93 Difference]: Finished difference Result 7836 states and 8345 transitions. [2020-11-29 20:24:34,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:24:34,407 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 778 [2020-11-29 20:24:34,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:24:34,409 INFO L225 Difference]: With dead ends: 7836 [2020-11-29 20:24:34,409 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 20:24:34,415 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 781 GetRequests, 778 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:24:34,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 20:24:34,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 20:24:34,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 20:24:34,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 20:24:34,416 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 778 [2020-11-29 20:24:34,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:24:34,417 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:24:34,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:24:34,417 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 20:24:34,418 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 20:24:34,644 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-11-29 20:24:34,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 20:24:35,088 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 34 [2020-11-29 20:24:35,362 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 34 [2020-11-29 20:24:35,365 INFO L274 CegarLoopResult]: For program point L762(lines 762 880) no Hoare annotation was computed. [2020-11-29 20:24:35,365 INFO L274 CegarLoopResult]: For program point L895(line 895) no Hoare annotation was computed. [2020-11-29 20:24:35,365 INFO L274 CegarLoopResult]: For program point L829(lines 829 880) no Hoare annotation was computed. [2020-11-29 20:24:35,366 INFO L274 CegarLoopResult]: For program point L631(lines 631 880) no Hoare annotation was computed. [2020-11-29 20:24:35,366 INFO L274 CegarLoopResult]: For program point L565(lines 565 880) no Hoare annotation was computed. [2020-11-29 20:24:35,366 INFO L274 CegarLoopResult]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,366 INFO L274 CegarLoopResult]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,366 INFO L274 CegarLoopResult]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,366 INFO L274 CegarLoopResult]: For program point L698(lines 698 880) no Hoare annotation was computed. [2020-11-29 20:24:35,366 INFO L274 CegarLoopResult]: For program point L500(lines 500 880) no Hoare annotation was computed. [2020-11-29 20:24:35,366 INFO L274 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-11-29 20:24:35,366 INFO L274 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-11-29 20:24:35,366 INFO L274 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-11-29 20:24:35,366 INFO L274 CegarLoopResult]: For program point L369(lines 369 880) no Hoare annotation was computed. [2020-11-29 20:24:35,366 INFO L274 CegarLoopResult]: For program point L303(lines 303 880) no Hoare annotation was computed. [2020-11-29 20:24:35,367 INFO L274 CegarLoopResult]: For program point L436(lines 436 880) no Hoare annotation was computed. [2020-11-29 20:24:35,367 INFO L274 CegarLoopResult]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,367 INFO L274 CegarLoopResult]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,367 INFO L274 CegarLoopResult]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,367 INFO L274 CegarLoopResult]: For program point L239(lines 239 880) no Hoare annotation was computed. [2020-11-29 20:24:35,367 INFO L274 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-11-29 20:24:35,367 INFO L274 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-11-29 20:24:35,367 INFO L274 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-11-29 20:24:35,367 INFO L274 CegarLoopResult]: For program point L768(lines 768 880) no Hoare annotation was computed. [2020-11-29 20:24:35,367 INFO L274 CegarLoopResult]: For program point L636(lines 636 880) no Hoare annotation was computed. [2020-11-29 20:24:35,367 INFO L274 CegarLoopResult]: For program point L835(lines 835 880) no Hoare annotation was computed. [2020-11-29 20:24:35,367 INFO L274 CegarLoopResult]: For program point L571(lines 571 880) no Hoare annotation was computed. [2020-11-29 20:24:35,367 INFO L274 CegarLoopResult]: For program point L505(lines 505 880) no Hoare annotation was computed. [2020-11-29 20:24:35,368 INFO L274 CegarLoopResult]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,368 INFO L274 CegarLoopResult]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,368 INFO L274 CegarLoopResult]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,368 INFO L274 CegarLoopResult]: For program point L704(lines 704 880) no Hoare annotation was computed. [2020-11-29 20:24:35,368 INFO L274 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-11-29 20:24:35,368 INFO L274 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-11-29 20:24:35,369 INFO L274 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-11-29 20:24:35,369 INFO L274 CegarLoopResult]: For program point L309(lines 309 880) no Hoare annotation was computed. [2020-11-29 20:24:35,369 INFO L274 CegarLoopResult]: For program point L442(lines 442 880) no Hoare annotation was computed. [2020-11-29 20:24:35,369 INFO L274 CegarLoopResult]: For program point L376(lines 376 880) no Hoare annotation was computed. [2020-11-29 20:24:35,369 INFO L274 CegarLoopResult]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,369 INFO L274 CegarLoopResult]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,369 INFO L274 CegarLoopResult]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,370 INFO L274 CegarLoopResult]: For program point L245(lines 245 880) no Hoare annotation was computed. [2020-11-29 20:24:35,370 INFO L274 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-11-29 20:24:35,370 INFO L274 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-11-29 20:24:35,370 INFO L274 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-11-29 20:24:35,370 INFO L274 CegarLoopResult]: For program point L774(lines 774 880) no Hoare annotation was computed. [2020-11-29 20:24:35,370 INFO L274 CegarLoopResult]: For program point L642(lines 642 880) no Hoare annotation was computed. [2020-11-29 20:24:35,371 INFO L274 CegarLoopResult]: For program point L510(lines 510 880) no Hoare annotation was computed. [2020-11-29 20:24:35,371 INFO L274 CegarLoopResult]: For program point L841(lines 841 880) no Hoare annotation was computed. [2020-11-29 20:24:35,371 INFO L274 CegarLoopResult]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,371 INFO L274 CegarLoopResult]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,371 INFO L274 CegarLoopResult]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,371 INFO L274 CegarLoopResult]: For program point L710(lines 710 880) no Hoare annotation was computed. [2020-11-29 20:24:35,372 INFO L274 CegarLoopResult]: For program point L578(lines 578 880) no Hoare annotation was computed. [2020-11-29 20:24:35,372 INFO L274 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-11-29 20:24:35,372 INFO L274 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-11-29 20:24:35,372 INFO L274 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-11-29 20:24:35,372 INFO L274 CegarLoopResult]: For program point L315(lines 315 880) no Hoare annotation was computed. [2020-11-29 20:24:35,372 INFO L274 CegarLoopResult]: For program point L448(lines 448 880) no Hoare annotation was computed. [2020-11-29 20:24:35,373 INFO L274 CegarLoopResult]: For program point L382(lines 382 880) no Hoare annotation was computed. [2020-11-29 20:24:35,373 INFO L274 CegarLoopResult]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,373 INFO L274 CegarLoopResult]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,373 INFO L274 CegarLoopResult]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,373 INFO L274 CegarLoopResult]: For program point L251(lines 251 880) no Hoare annotation was computed. [2020-11-29 20:24:35,373 INFO L274 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-11-29 20:24:35,373 INFO L274 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-11-29 20:24:35,374 INFO L274 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-11-29 20:24:35,374 INFO L274 CegarLoopResult]: For program point L648(lines 648 880) no Hoare annotation was computed. [2020-11-29 20:24:35,374 INFO L274 CegarLoopResult]: For program point L516(lines 516 880) no Hoare annotation was computed. [2020-11-29 20:24:35,374 INFO L274 CegarLoopResult]: For program point L847(lines 847 880) no Hoare annotation was computed. [2020-11-29 20:24:35,374 INFO L274 CegarLoopResult]: For program point L781(lines 781 880) no Hoare annotation was computed. [2020-11-29 20:24:35,374 INFO L274 CegarLoopResult]: For program point L583(lines 583 880) no Hoare annotation was computed. [2020-11-29 20:24:35,375 INFO L274 CegarLoopResult]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,375 INFO L274 CegarLoopResult]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,376 INFO L274 CegarLoopResult]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,376 INFO L274 CegarLoopResult]: For program point L716(lines 716 880) no Hoare annotation was computed. [2020-11-29 20:24:35,376 INFO L274 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-11-29 20:24:35,376 INFO L274 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-11-29 20:24:35,377 INFO L274 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-11-29 20:24:35,377 INFO L274 CegarLoopResult]: For program point L321(lines 321 880) no Hoare annotation was computed. [2020-11-29 20:24:35,377 INFO L274 CegarLoopResult]: For program point L454(lines 454 880) no Hoare annotation was computed. [2020-11-29 20:24:35,377 INFO L274 CegarLoopResult]: For program point L388(lines 388 880) no Hoare annotation was computed. [2020-11-29 20:24:35,377 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 20:24:35,377 INFO L274 CegarLoopResult]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,378 INFO L274 CegarLoopResult]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,378 INFO L274 CegarLoopResult]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,378 INFO L274 CegarLoopResult]: For program point L257(lines 257 880) no Hoare annotation was computed. [2020-11-29 20:24:35,378 INFO L274 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-11-29 20:24:35,378 INFO L274 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-11-29 20:24:35,378 INFO L274 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-11-29 20:24:35,379 INFO L274 CegarLoopResult]: For program point L852(lines 852 880) no Hoare annotation was computed. [2020-11-29 20:24:35,379 INFO L274 CegarLoopResult]: For program point L654(lines 654 880) no Hoare annotation was computed. [2020-11-29 20:24:35,379 INFO L274 CegarLoopResult]: For program point L522(lines 522 880) no Hoare annotation was computed. [2020-11-29 20:24:35,379 INFO L274 CegarLoopResult]: For program point L787(lines 787 880) no Hoare annotation was computed. [2020-11-29 20:24:35,379 INFO L274 CegarLoopResult]: For program point L589(lines 589 880) no Hoare annotation was computed. [2020-11-29 20:24:35,379 INFO L274 CegarLoopResult]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,380 INFO L274 CegarLoopResult]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,380 INFO L274 CegarLoopResult]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,380 INFO L274 CegarLoopResult]: For program point L722(lines 722 880) no Hoare annotation was computed. [2020-11-29 20:24:35,380 INFO L274 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-11-29 20:24:35,380 INFO L274 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-11-29 20:24:35,380 INFO L274 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-11-29 20:24:35,381 INFO L274 CegarLoopResult]: For program point L459(lines 459 880) no Hoare annotation was computed. [2020-11-29 20:24:35,381 INFO L274 CegarLoopResult]: For program point L327(lines 327 880) no Hoare annotation was computed. [2020-11-29 20:24:35,381 INFO L274 CegarLoopResult]: For program point L394(lines 394 880) no Hoare annotation was computed. [2020-11-29 20:24:35,381 INFO L274 CegarLoopResult]: For program point L262(lines 262 880) no Hoare annotation was computed. [2020-11-29 20:24:35,381 INFO L274 CegarLoopResult]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,381 INFO L274 CegarLoopResult]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,382 INFO L274 CegarLoopResult]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,382 INFO L274 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-11-29 20:24:35,382 INFO L274 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-11-29 20:24:35,382 INFO L274 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-11-29 20:24:35,382 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 20:24:35,384 INFO L274 CegarLoopResult]: For program point L858(lines 858 880) no Hoare annotation was computed. [2020-11-29 20:24:35,384 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-29 20:24:35,385 INFO L274 CegarLoopResult]: For program point L660(lines 660 880) no Hoare annotation was computed. [2020-11-29 20:24:35,385 INFO L274 CegarLoopResult]: For program point L528(lines 528 880) no Hoare annotation was computed. [2020-11-29 20:24:35,385 INFO L274 CegarLoopResult]: For program point L793(lines 793 880) no Hoare annotation was computed. [2020-11-29 20:24:35,385 INFO L274 CegarLoopResult]: For program point L595(lines 595 880) no Hoare annotation was computed. [2020-11-29 20:24:35,385 INFO L274 CegarLoopResult]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,385 INFO L274 CegarLoopResult]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,386 INFO L274 CegarLoopResult]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,386 INFO L274 CegarLoopResult]: For program point L728(lines 728 880) no Hoare annotation was computed. [2020-11-29 20:24:35,386 INFO L274 CegarLoopResult]: For program point L464(lines 464 880) no Hoare annotation was computed. [2020-11-29 20:24:35,386 INFO L274 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-11-29 20:24:35,386 INFO L274 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-11-29 20:24:35,386 INFO L274 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-11-29 20:24:35,387 INFO L274 CegarLoopResult]: For program point L333(lines 333 880) no Hoare annotation was computed. [2020-11-29 20:24:35,387 INFO L274 CegarLoopResult]: For program point L400(lines 400 880) no Hoare annotation was computed. [2020-11-29 20:24:35,387 INFO L274 CegarLoopResult]: For program point L268(lines 268 880) no Hoare annotation was computed. [2020-11-29 20:24:35,387 INFO L274 CegarLoopResult]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,387 INFO L274 CegarLoopResult]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,387 INFO L274 CegarLoopResult]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,387 INFO L274 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-11-29 20:24:35,388 INFO L274 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2020-11-29 20:24:35,388 INFO L274 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-11-29 20:24:35,388 INFO L274 CegarLoopResult]: For program point L864(lines 864 880) no Hoare annotation was computed. [2020-11-29 20:24:35,388 INFO L274 CegarLoopResult]: For program point L666(lines 666 880) no Hoare annotation was computed. [2020-11-29 20:24:35,388 INFO L274 CegarLoopResult]: For program point L534(lines 534 880) no Hoare annotation was computed. [2020-11-29 20:24:35,388 INFO L274 CegarLoopResult]: For program point L799(lines 799 880) no Hoare annotation was computed. [2020-11-29 20:24:35,389 INFO L274 CegarLoopResult]: For program point L601(lines 601 880) no Hoare annotation was computed. [2020-11-29 20:24:35,389 INFO L274 CegarLoopResult]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,389 INFO L274 CegarLoopResult]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,389 INFO L274 CegarLoopResult]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,389 INFO L274 CegarLoopResult]: For program point L734(lines 734 880) no Hoare annotation was computed. [2020-11-29 20:24:35,389 INFO L274 CegarLoopResult]: For program point L470(lines 470 880) no Hoare annotation was computed. [2020-11-29 20:24:35,389 INFO L274 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-11-29 20:24:35,389 INFO L274 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-11-29 20:24:35,389 INFO L274 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-11-29 20:24:35,389 INFO L274 CegarLoopResult]: For program point L339(lines 339 880) no Hoare annotation was computed. [2020-11-29 20:24:35,389 INFO L274 CegarLoopResult]: For program point L406(lines 406 880) no Hoare annotation was computed. [2020-11-29 20:24:35,389 INFO L274 CegarLoopResult]: For program point L274(lines 274 880) no Hoare annotation was computed. [2020-11-29 20:24:35,390 INFO L274 CegarLoopResult]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,390 INFO L274 CegarLoopResult]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,390 INFO L274 CegarLoopResult]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,390 INFO L274 CegarLoopResult]: For program point L869(lines 869 880) no Hoare annotation was computed. [2020-11-29 20:24:35,390 INFO L274 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-11-29 20:24:35,390 INFO L274 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-11-29 20:24:35,390 INFO L274 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-11-29 20:24:35,390 INFO L274 CegarLoopResult]: For program point L672(lines 672 880) no Hoare annotation was computed. [2020-11-29 20:24:35,390 INFO L274 CegarLoopResult]: For program point L540(lines 540 880) no Hoare annotation was computed. [2020-11-29 20:24:35,390 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-29 20:24:35,390 INFO L274 CegarLoopResult]: For program point L805(lines 805 880) no Hoare annotation was computed. [2020-11-29 20:24:35,390 INFO L274 CegarLoopResult]: For program point L607(lines 607 880) no Hoare annotation was computed. [2020-11-29 20:24:35,390 INFO L274 CegarLoopResult]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,390 INFO L274 CegarLoopResult]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,391 INFO L274 CegarLoopResult]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,391 INFO L274 CegarLoopResult]: For program point L740(lines 740 880) no Hoare annotation was computed. [2020-11-29 20:24:35,391 INFO L274 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-11-29 20:24:35,391 INFO L274 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-11-29 20:24:35,391 INFO L274 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-11-29 20:24:35,391 INFO L274 CegarLoopResult]: For program point L477(lines 477 880) no Hoare annotation was computed. [2020-11-29 20:24:35,391 INFO L274 CegarLoopResult]: For program point L345(lines 345 880) no Hoare annotation was computed. [2020-11-29 20:24:35,391 INFO L274 CegarLoopResult]: For program point L279(lines 279 880) no Hoare annotation was computed. [2020-11-29 20:24:35,391 INFO L274 CegarLoopResult]: For program point L412(lines 412 880) no Hoare annotation was computed. [2020-11-29 20:24:35,391 INFO L274 CegarLoopResult]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,391 INFO L274 CegarLoopResult]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,391 INFO L274 CegarLoopResult]: For program point L875(lines 875 880) no Hoare annotation was computed. [2020-11-29 20:24:35,391 INFO L274 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-11-29 20:24:35,391 INFO L274 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-11-29 20:24:35,392 INFO L274 CegarLoopResult]: For program point L678(lines 678 880) no Hoare annotation was computed. [2020-11-29 20:24:35,392 INFO L274 CegarLoopResult]: For program point L546(lines 546 880) no Hoare annotation was computed. [2020-11-29 20:24:35,392 INFO L274 CegarLoopResult]: For program point L811(lines 811 880) no Hoare annotation was computed. [2020-11-29 20:24:35,392 INFO L274 CegarLoopResult]: For program point L745(lines 745 880) no Hoare annotation was computed. [2020-11-29 20:24:35,392 INFO L274 CegarLoopResult]: For program point L613(lines 613 880) no Hoare annotation was computed. [2020-11-29 20:24:35,392 INFO L274 CegarLoopResult]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,392 INFO L274 CegarLoopResult]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,392 INFO L274 CegarLoopResult]: For program point L482(lines 482 880) no Hoare annotation was computed. [2020-11-29 20:24:35,392 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 20:24:35,392 INFO L274 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-11-29 20:24:35,392 INFO L274 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-11-29 20:24:35,392 INFO L274 CegarLoopResult]: For program point L351(lines 351 880) no Hoare annotation was computed. [2020-11-29 20:24:35,392 INFO L274 CegarLoopResult]: For program point L285(lines 285 880) no Hoare annotation was computed. [2020-11-29 20:24:35,393 INFO L274 CegarLoopResult]: For program point L418(lines 418 880) no Hoare annotation was computed. [2020-11-29 20:24:35,393 INFO L274 CegarLoopResult]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,393 INFO L274 CegarLoopResult]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,393 INFO L270 CegarLoopResult]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse3 (<= ~a15~0 5)) (.cse2 (<= ~a15~0 8)) (.cse0 (<= 7 ~a15~0)) (.cse1 (= ~a24~0 1))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse1) (and .cse3 (<= (+ ~a12~0 49) 0)) (and .cse0 .cse1 (<= 10 ~a21~0)) (and (< 0 (+ ~a12~0 43)) .cse1) (and (<= 9 ~a21~0) .cse1 .cse2 (<= ~a21~0 9)) (and .cse0 (<= 8 ~a21~0) .cse1 (<= ~a21~0 8)))) [2020-11-29 20:24:35,393 INFO L274 CegarLoopResult]: For program point L551(lines 551 880) no Hoare annotation was computed. [2020-11-29 20:24:35,394 INFO L274 CegarLoopResult]: For program point L221(lines 221 880) no Hoare annotation was computed. [2020-11-29 20:24:35,394 INFO L274 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-11-29 20:24:35,394 INFO L274 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-11-29 20:24:35,394 INFO L274 CegarLoopResult]: For program point L684(lines 684 880) no Hoare annotation was computed. [2020-11-29 20:24:35,394 INFO L274 CegarLoopResult]: For program point L817(lines 817 880) no Hoare annotation was computed. [2020-11-29 20:24:35,394 INFO L274 CegarLoopResult]: For program point L751(lines 751 880) no Hoare annotation was computed. [2020-11-29 20:24:35,395 INFO L274 CegarLoopResult]: For program point L619(lines 619 880) no Hoare annotation was computed. [2020-11-29 20:24:35,395 INFO L274 CegarLoopResult]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,395 INFO L274 CegarLoopResult]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,395 INFO L277 CegarLoopResult]: At program point L884(lines 884 900) the Hoare annotation is: true [2020-11-29 20:24:35,395 INFO L274 CegarLoopResult]: For program point L488(lines 488 880) no Hoare annotation was computed. [2020-11-29 20:24:35,395 INFO L274 CegarLoopResult]: For program point L290(lines 290 880) no Hoare annotation was computed. [2020-11-29 20:24:35,396 INFO L274 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-11-29 20:24:35,396 INFO L274 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-11-29 20:24:35,396 INFO L274 CegarLoopResult]: For program point L687(lines 687 880) no Hoare annotation was computed. [2020-11-29 20:24:35,396 INFO L274 CegarLoopResult]: For program point L357(lines 357 880) no Hoare annotation was computed. [2020-11-29 20:24:35,396 INFO L274 CegarLoopResult]: For program point L424(lines 424 880) no Hoare annotation was computed. [2020-11-29 20:24:35,396 INFO L274 CegarLoopResult]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,396 INFO L274 CegarLoopResult]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,396 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 20:24:35,396 INFO L274 CegarLoopResult]: For program point L557(lines 557 880) no Hoare annotation was computed. [2020-11-29 20:24:35,396 INFO L274 CegarLoopResult]: For program point L227(lines 227 880) no Hoare annotation was computed. [2020-11-29 20:24:35,396 INFO L274 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2020-11-29 20:24:35,396 INFO L274 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-11-29 20:24:35,397 INFO L274 CegarLoopResult]: For program point L757(lines 757 880) no Hoare annotation was computed. [2020-11-29 20:24:35,397 INFO L274 CegarLoopResult]: For program point L625(lines 625 880) no Hoare annotation was computed. [2020-11-29 20:24:35,397 INFO L274 CegarLoopResult]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,397 INFO L274 CegarLoopResult]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,397 INFO L274 CegarLoopResult]: For program point L31(lines 31 33) no Hoare annotation was computed. [2020-11-29 20:24:35,397 INFO L274 CegarLoopResult]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,397 INFO L274 CegarLoopResult]: For program point L824(lines 824 880) no Hoare annotation was computed. [2020-11-29 20:24:35,397 INFO L270 CegarLoopResult]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse3 (<= ~a15~0 5)) (.cse2 (<= ~a15~0 8)) (.cse0 (<= 7 ~a15~0)) (.cse1 (= ~a24~0 1))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse1) (and .cse3 (<= (+ ~a12~0 49) 0)) (and .cse0 .cse1 (<= 10 ~a21~0)) (and (< 0 (+ ~a12~0 43)) .cse1) (and (<= 9 ~a21~0) .cse1 .cse2 (<= ~a21~0 9)) (and .cse0 (<= 8 ~a21~0) .cse1 (<= ~a21~0 8)))) [2020-11-29 20:24:35,397 INFO L274 CegarLoopResult]: For program point L494(lines 494 880) no Hoare annotation was computed. [2020-11-29 20:24:35,397 INFO L274 CegarLoopResult]: For program point L296(lines 296 880) no Hoare annotation was computed. [2020-11-29 20:24:35,397 INFO L274 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-11-29 20:24:35,398 INFO L274 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-11-29 20:24:35,398 INFO L274 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-11-29 20:24:35,398 INFO L274 CegarLoopResult]: For program point L693(lines 693 880) no Hoare annotation was computed. [2020-11-29 20:24:35,398 INFO L274 CegarLoopResult]: For program point L363(lines 363 880) no Hoare annotation was computed. [2020-11-29 20:24:35,398 INFO L274 CegarLoopResult]: For program point L562(lines 562 880) no Hoare annotation was computed. [2020-11-29 20:24:35,398 INFO L274 CegarLoopResult]: For program point L430(lines 430 880) no Hoare annotation was computed. [2020-11-29 20:24:35,398 INFO L274 CegarLoopResult]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,398 INFO L274 CegarLoopResult]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,398 INFO L274 CegarLoopResult]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:24:35,398 INFO L274 CegarLoopResult]: For program point L233(lines 233 880) no Hoare annotation was computed. [2020-11-29 20:24:35,398 INFO L274 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2020-11-29 20:24:35,398 INFO L274 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-11-29 20:24:35,399 INFO L274 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-11-29 20:24:35,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 08:24:35 BoogieIcfgContainer [2020-11-29 20:24:35,428 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 20:24:35,428 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:24:35,429 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:24:35,429 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:24:35,430 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:24:04" (3/4) ... [2020-11-29 20:24:35,434 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 20:24:35,468 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 20:24:35,471 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 20:24:35,473 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 20:24:35,475 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 20:24:35,690 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d9b56200-dd40-4a36-b8c1-c56432954abc/bin/uautomizer/witness.graphml [2020-11-29 20:24:35,690 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:24:35,691 INFO L168 Benchmark]: Toolchain (without parser) took 34566.72 ms. Allocated memory was 83.9 MB in the beginning and 1.1 GB in the end (delta: 1.1 GB). Free memory was 51.3 MB in the beginning and 589.8 MB in the end (delta: -538.6 MB). Peak memory consumption was 522.6 MB. Max. memory is 16.1 GB. [2020-11-29 20:24:35,692 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 62.9 MB. Free memory was 25.1 MB in the beginning and 25.1 MB in the end (delta: 33.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:24:35,692 INFO L168 Benchmark]: CACSL2BoogieTranslator took 987.84 ms. Allocated memory is still 83.9 MB. Free memory was 50.9 MB in the beginning and 40.6 MB in the end (delta: 10.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 20:24:35,693 INFO L168 Benchmark]: Boogie Procedure Inliner took 166.35 ms. Allocated memory is still 83.9 MB. Free memory was 40.6 MB in the beginning and 31.0 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:24:35,693 INFO L168 Benchmark]: Boogie Preprocessor took 146.47 ms. Allocated memory is still 83.9 MB. Free memory was 31.0 MB in the beginning and 54.4 MB in the end (delta: -23.5 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. [2020-11-29 20:24:35,694 INFO L168 Benchmark]: RCFGBuilder took 2325.64 ms. Allocated memory was 83.9 MB in the beginning and 113.2 MB in the end (delta: 29.4 MB). Free memory was 54.0 MB in the beginning and 70.2 MB in the end (delta: -16.2 MB). Peak memory consumption was 52.3 MB. Max. memory is 16.1 GB. [2020-11-29 20:24:35,695 INFO L168 Benchmark]: TraceAbstraction took 30662.83 ms. Allocated memory was 113.2 MB in the beginning and 1.1 GB in the end (delta: 1.0 GB). Free memory was 70.2 MB in the beginning and 610.0 MB in the end (delta: -539.8 MB). Peak memory consumption was 491.6 MB. Max. memory is 16.1 GB. [2020-11-29 20:24:35,695 INFO L168 Benchmark]: Witness Printer took 261.85 ms. Allocated memory is still 1.1 GB. Free memory was 610.0 MB in the beginning and 589.8 MB in the end (delta: 20.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-29 20:24:35,698 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 ms. Allocated memory is still 62.9 MB. Free memory was 25.1 MB in the beginning and 25.1 MB in the end (delta: 33.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 987.84 ms. Allocated memory is still 83.9 MB. Free memory was 50.9 MB in the beginning and 40.6 MB in the end (delta: 10.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 166.35 ms. Allocated memory is still 83.9 MB. Free memory was 40.6 MB in the beginning and 31.0 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 146.47 ms. Allocated memory is still 83.9 MB. Free memory was 31.0 MB in the beginning and 54.4 MB in the end (delta: -23.5 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2325.64 ms. Allocated memory was 83.9 MB in the beginning and 113.2 MB in the end (delta: 29.4 MB). Free memory was 54.0 MB in the beginning and 70.2 MB in the end (delta: -16.2 MB). Peak memory consumption was 52.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 30662.83 ms. Allocated memory was 113.2 MB in the beginning and 1.1 GB in the end (delta: 1.0 GB). Free memory was 70.2 MB in the beginning and 610.0 MB in the end (delta: -539.8 MB). Peak memory consumption was 491.6 MB. Max. memory is 16.1 GB. * Witness Printer took 261.85 ms. Allocated memory is still 1.1 GB. Free memory was 610.0 MB in the beginning and 589.8 MB in the end (delta: 20.1 MB). Peak memory consumption was 21.0 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: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: (((((((7 <= a15 && a24 == 1) && a15 <= 8) || (a15 <= 5 && a24 == 1)) || (a15 <= 5 && a12 + 49 <= 0)) || ((7 <= a15 && a24 == 1) && 10 <= a21)) || (0 < a12 + 43 && a24 == 1)) || (((9 <= a21 && a24 == 1) && a15 <= 8) && a21 <= 9)) || (((7 <= a15 && 8 <= a21) && a24 == 1) && a21 <= 8) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((((7 <= a15 && a24 == 1) && a15 <= 8) || (a15 <= 5 && a24 == 1)) || (a15 <= 5 && a12 + 49 <= 0)) || ((7 <= a15 && a24 == 1) && 10 <= a21)) || (0 < a12 + 43 && a24 == 1)) || (((9 <= a21 && a24 == 1) && a15 <= 8) && a21 <= 9)) || (((7 <= a15 && 8 <= a21) && a24 == 1) && a21 <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 246 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 29.8s, OverallIterations: 14, TraceHistogramMax: 7, AutomataDifference: 17.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1908 SDtfs, 2045 SDslu, 79 SDs, 0 SdLazy, 7187 SolverSat, 959 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2211 GetRequests, 2187 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3564occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 14 MinimizatonAttempts, 2498 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 71 NumberOfFragments, 145 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1814 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 348 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 7354 NumberOfCodeBlocks, 7354 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 7337 ConstructedInterpolants, 0 QuantifiedInterpolants, 7862109 SizeOfPredicates, 3 NumberOfNonLiveVariables, 2763 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 17 InterpolantComputations, 14 PerfectInterpolantSequences, 13021/13441 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...