./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label48.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_7ca909ef-7813-4293-bf52-9434fefaa73e/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7ca909ef-7813-4293-bf52-9434fefaa73e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7ca909ef-7813-4293-bf52-9434fefaa73e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7ca909ef-7813-4293-bf52-9434fefaa73e/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label48.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7ca909ef-7813-4293-bf52-9434fefaa73e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7ca909ef-7813-4293-bf52-9434fefaa73e/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 a6df5da7fc1b0bb49b84edaa82fe6a86004a9b30 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 22:18:13,810 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:18:13,814 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:18:13,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:18:13,907 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:18:13,908 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:18:13,910 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:18:13,913 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:18:13,915 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:18:13,917 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:18:13,918 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:18:13,920 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:18:13,920 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:18:13,922 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:18:13,923 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:18:13,925 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:18:13,926 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:18:13,927 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:18:13,930 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:18:13,932 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:18:13,934 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:18:13,936 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:18:13,938 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:18:13,939 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:18:13,942 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:18:13,943 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:18:13,943 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:18:13,945 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:18:13,945 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:18:13,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:18:13,947 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:18:13,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:18:13,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:18:13,950 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:18:13,951 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:18:13,952 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:18:13,953 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:18:13,953 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:18:13,953 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:18:13,955 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:18:13,956 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:18:13,960 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7ca909ef-7813-4293-bf52-9434fefaa73e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 22:18:13,986 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:18:13,986 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:18:13,987 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:18:13,988 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:18:13,988 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:18:13,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:18:13,988 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:18:13,988 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:18:13,989 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:18:13,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:18:13,989 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 22:18:13,989 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 22:18:13,989 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 22:18:13,990 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:18:13,990 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:18:13,990 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:18:13,990 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 22:18:13,990 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:18:13,991 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:18:13,991 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 22:18:13,991 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 22:18:13,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 22:18:13,991 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:18:13,992 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 22:18:13,992 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 22:18:13,992 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:18:13,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 22:18:13,992 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 22:18:13,993 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:18:13,993 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_7ca909ef-7813-4293-bf52-9434fefaa73e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7ca909ef-7813-4293-bf52-9434fefaa73e/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6df5da7fc1b0bb49b84edaa82fe6a86004a9b30 [2020-11-29 22:18:14,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:18:14,245 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:18:14,247 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:18:14,248 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:18:14,249 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:18:14,250 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7ca909ef-7813-4293-bf52-9434fefaa73e/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem11_label48.c [2020-11-29 22:18:14,313 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7ca909ef-7813-4293-bf52-9434fefaa73e/bin/uautomizer/data/d20a5679c/074e3509529949b2aef2644d15f5e949/FLAGacc78adfe [2020-11-29 22:18:15,137 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:18:15,138 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7ca909ef-7813-4293-bf52-9434fefaa73e/sv-benchmarks/c/eca-rers2012/Problem11_label48.c [2020-11-29 22:18:15,153 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7ca909ef-7813-4293-bf52-9434fefaa73e/bin/uautomizer/data/d20a5679c/074e3509529949b2aef2644d15f5e949/FLAGacc78adfe [2020-11-29 22:18:15,325 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7ca909ef-7813-4293-bf52-9434fefaa73e/bin/uautomizer/data/d20a5679c/074e3509529949b2aef2644d15f5e949 [2020-11-29 22:18:15,328 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:18:15,336 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:18:15,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:18:15,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:18:15,345 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:18:15,347 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:18:15" (1/1) ... [2020-11-29 22:18:15,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28982d51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:18:15, skipping insertion in model container [2020-11-29 22:18:15,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:18:15" (1/1) ... [2020-11-29 22:18:15,361 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:18:15,450 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:18:16,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:18:16,037 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:18:16,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:18:16,263 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:18:16,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:18:16 WrapperNode [2020-11-29 22:18:16,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:18:16,265 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:18:16,265 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:18:16,265 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:18:16,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:18:16" (1/1) ... [2020-11-29 22:18:16,303 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:18:16" (1/1) ... [2020-11-29 22:18:16,455 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:18:16,456 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:18:16,456 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:18:16,457 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:18:16,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:18:16" (1/1) ... [2020-11-29 22:18:16,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:18:16" (1/1) ... [2020-11-29 22:18:16,478 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:18:16" (1/1) ... [2020-11-29 22:18:16,478 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:18:16" (1/1) ... [2020-11-29 22:18:16,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:18:16" (1/1) ... [2020-11-29 22:18:16,553 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:18:16" (1/1) ... [2020-11-29 22:18:16,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:18:16" (1/1) ... [2020-11-29 22:18:16,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:18:16,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:18:16,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:18:16,585 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:18:16,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:18:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ca909ef-7813-4293-bf52-9434fefaa73e/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 22:18:16,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 22:18:16,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:18:16,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:18:16,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:18:19,203 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:18:19,204 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 22:18:19,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:18:19 BoogieIcfgContainer [2020-11-29 22:18:19,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:18:19,208 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 22:18:19,208 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 22:18:19,215 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 22:18:19,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 10:18:15" (1/3) ... [2020-11-29 22:18:19,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bb9205d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:18:19, skipping insertion in model container [2020-11-29 22:18:19,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:18:16" (2/3) ... [2020-11-29 22:18:19,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bb9205d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:18:19, skipping insertion in model container [2020-11-29 22:18:19,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:18:19" (3/3) ... [2020-11-29 22:18:19,219 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label48.c [2020-11-29 22:18:19,232 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 22:18:19,237 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 22:18:19,250 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 22:18:19,297 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 22:18:19,297 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 22:18:19,297 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 22:18:19,297 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:18:19,298 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:18:19,298 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 22:18:19,298 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:18:19,298 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 22:18:19,330 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states. [2020-11-29 22:18:19,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-29 22:18:19,341 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:18:19,342 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:18:19,342 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:18:19,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:18:19,350 INFO L82 PathProgramCache]: Analyzing trace with hash 761214138, now seen corresponding path program 1 times [2020-11-29 22:18:19,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:18:19,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087383650] [2020-11-29 22:18:19,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:18:19,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:18:19,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:18:19,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087383650] [2020-11-29 22:18:19,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:18:19,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:18:19,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144050478] [2020-11-29 22:18:19,774 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:18:19,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:18:19,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:18:19,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:18:19,793 INFO L87 Difference]: Start difference. First operand 284 states. Second operand 3 states. [2020-11-29 22:18:21,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:18:21,710 INFO L93 Difference]: Finished difference Result 762 states and 1346 transitions. [2020-11-29 22:18:21,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:18:21,712 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2020-11-29 22:18:21,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:18:21,727 INFO L225 Difference]: With dead ends: 762 [2020-11-29 22:18:21,727 INFO L226 Difference]: Without dead ends: 413 [2020-11-29 22:18:21,732 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:18:21,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-11-29 22:18:21,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2020-11-29 22:18:21,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2020-11-29 22:18:21,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 599 transitions. [2020-11-29 22:18:21,813 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 599 transitions. Word has length 50 [2020-11-29 22:18:21,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:18:21,814 INFO L481 AbstractCegarLoop]: Abstraction has 413 states and 599 transitions. [2020-11-29 22:18:21,814 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:18:21,815 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 599 transitions. [2020-11-29 22:18:21,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-11-29 22:18:21,822 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:18:21,823 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:18:21,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 22:18:21,823 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:18:21,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:18:21,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1359138414, now seen corresponding path program 1 times [2020-11-29 22:18:21,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:18:21,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46930157] [2020-11-29 22:18:21,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:18:21,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:18:22,089 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:18:22,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46930157] [2020-11-29 22:18:22,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:18:22,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:18:22,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122166806] [2020-11-29 22:18:22,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:18:22,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:18:22,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:18:22,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:18:22,092 INFO L87 Difference]: Start difference. First operand 413 states and 599 transitions. Second operand 3 states. [2020-11-29 22:18:23,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:18:23,452 INFO L93 Difference]: Finished difference Result 1211 states and 1763 transitions. [2020-11-29 22:18:23,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:18:23,453 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2020-11-29 22:18:23,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:18:23,461 INFO L225 Difference]: With dead ends: 1211 [2020-11-29 22:18:23,461 INFO L226 Difference]: Without dead ends: 800 [2020-11-29 22:18:23,464 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:18:23,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2020-11-29 22:18:23,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 789. [2020-11-29 22:18:23,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 789 states. [2020-11-29 22:18:23,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1083 transitions. [2020-11-29 22:18:23,535 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1083 transitions. Word has length 118 [2020-11-29 22:18:23,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:18:23,535 INFO L481 AbstractCegarLoop]: Abstraction has 789 states and 1083 transitions. [2020-11-29 22:18:23,535 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:18:23,536 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1083 transitions. [2020-11-29 22:18:23,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-11-29 22:18:23,543 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:18:23,543 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:18:23,543 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 22:18:23,543 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:18:23,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:18:23,544 INFO L82 PathProgramCache]: Analyzing trace with hash -130037587, now seen corresponding path program 1 times [2020-11-29 22:18:23,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:18:23,545 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717117651] [2020-11-29 22:18:23,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:18:23,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:18:23,781 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:18:23,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717117651] [2020-11-29 22:18:23,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:18:23,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:18:23,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951974084] [2020-11-29 22:18:23,784 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:18:23,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:18:23,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:18:23,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:18:23,786 INFO L87 Difference]: Start difference. First operand 789 states and 1083 transitions. Second operand 3 states. [2020-11-29 22:18:25,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:18:25,195 INFO L93 Difference]: Finished difference Result 2314 states and 3181 transitions. [2020-11-29 22:18:25,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:18:25,196 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2020-11-29 22:18:25,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:18:25,208 INFO L225 Difference]: With dead ends: 2314 [2020-11-29 22:18:25,208 INFO L226 Difference]: Without dead ends: 1527 [2020-11-29 22:18:25,210 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:18:25,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2020-11-29 22:18:25,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 1526. [2020-11-29 22:18:25,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1526 states. [2020-11-29 22:18:25,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 1856 transitions. [2020-11-29 22:18:25,254 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 1856 transitions. Word has length 120 [2020-11-29 22:18:25,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:18:25,255 INFO L481 AbstractCegarLoop]: Abstraction has 1526 states and 1856 transitions. [2020-11-29 22:18:25,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:18:25,255 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 1856 transitions. [2020-11-29 22:18:25,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-11-29 22:18:25,260 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:18:25,261 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:18:25,261 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 22:18:25,261 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:18:25,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:18:25,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1034130319, now seen corresponding path program 1 times [2020-11-29 22:18:25,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:18:25,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198206899] [2020-11-29 22:18:25,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:18:25,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:18:25,571 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:18:25,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198206899] [2020-11-29 22:18:25,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:18:25,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:18:25,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097961321] [2020-11-29 22:18:25,572 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 22:18:25,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:18:25,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 22:18:25,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:18:25,573 INFO L87 Difference]: Start difference. First operand 1526 states and 1856 transitions. Second operand 4 states. [2020-11-29 22:18:27,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:18:27,936 INFO L93 Difference]: Finished difference Result 4184 states and 5339 transitions. [2020-11-29 22:18:27,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 22:18:27,937 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 177 [2020-11-29 22:18:27,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:18:27,956 INFO L225 Difference]: With dead ends: 4184 [2020-11-29 22:18:27,956 INFO L226 Difference]: Without dead ends: 2844 [2020-11-29 22:18:27,959 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:18:27,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2844 states. [2020-11-29 22:18:28,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2844 to 2843. [2020-11-29 22:18:28,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2843 states. [2020-11-29 22:18:28,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2843 states to 2843 states and 3569 transitions. [2020-11-29 22:18:28,045 INFO L78 Accepts]: Start accepts. Automaton has 2843 states and 3569 transitions. Word has length 177 [2020-11-29 22:18:28,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:18:28,049 INFO L481 AbstractCegarLoop]: Abstraction has 2843 states and 3569 transitions. [2020-11-29 22:18:28,049 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 22:18:28,049 INFO L276 IsEmpty]: Start isEmpty. Operand 2843 states and 3569 transitions. [2020-11-29 22:18:28,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-11-29 22:18:28,057 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:18:28,058 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-29 22:18:28,058 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 22:18:28,058 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:18:28,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:18:28,059 INFO L82 PathProgramCache]: Analyzing trace with hash 78650313, now seen corresponding path program 1 times [2020-11-29 22:18:28,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:18:28,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432324299] [2020-11-29 22:18:28,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:18:28,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:18:28,323 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-11-29 22:18:28,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432324299] [2020-11-29 22:18:28,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:18:28,323 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:18:28,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104919170] [2020-11-29 22:18:28,324 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:18:28,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:18:28,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:18:28,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:18:28,325 INFO L87 Difference]: Start difference. First operand 2843 states and 3569 transitions. Second operand 3 states. [2020-11-29 22:18:29,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:18:29,840 INFO L93 Difference]: Finished difference Result 6431 states and 8283 transitions. [2020-11-29 22:18:29,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:18:29,841 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 232 [2020-11-29 22:18:29,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:18:29,863 INFO L225 Difference]: With dead ends: 6431 [2020-11-29 22:18:29,863 INFO L226 Difference]: Without dead ends: 3958 [2020-11-29 22:18:29,867 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:18:29,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3958 states. [2020-11-29 22:18:29,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3958 to 3948. [2020-11-29 22:18:29,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3948 states. [2020-11-29 22:18:29,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3948 states to 3948 states and 4860 transitions. [2020-11-29 22:18:29,958 INFO L78 Accepts]: Start accepts. Automaton has 3948 states and 4860 transitions. Word has length 232 [2020-11-29 22:18:29,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:18:29,959 INFO L481 AbstractCegarLoop]: Abstraction has 3948 states and 4860 transitions. [2020-11-29 22:18:29,959 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:18:29,959 INFO L276 IsEmpty]: Start isEmpty. Operand 3948 states and 4860 transitions. [2020-11-29 22:18:29,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-11-29 22:18:29,964 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:18:29,964 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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 22:18:29,964 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 22:18:29,965 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:18:29,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:18:29,965 INFO L82 PathProgramCache]: Analyzing trace with hash 951444506, now seen corresponding path program 1 times [2020-11-29 22:18:29,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:18:29,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535886203] [2020-11-29 22:18:29,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:18:30,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:18:30,506 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 70 proven. 25 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-11-29 22:18:30,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535886203] [2020-11-29 22:18:30,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387822824] [2020-11-29 22:18:30,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ca909ef-7813-4293-bf52-9434fefaa73e/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:18:30,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:18:30,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 22:18:30,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:18:30,882 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:18:30,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 22:18:30,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-11-29 22:18:30,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762817750] [2020-11-29 22:18:30,885 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:18:30,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:18:30,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:18:30,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:18:30,886 INFO L87 Difference]: Start difference. First operand 3948 states and 4860 transitions. Second operand 3 states. [2020-11-29 22:18:32,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:18:32,342 INFO L93 Difference]: Finished difference Result 7542 states and 9363 transitions. [2020-11-29 22:18:32,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:18:32,344 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 238 [2020-11-29 22:18:32,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:18:32,378 INFO L225 Difference]: With dead ends: 7542 [2020-11-29 22:18:32,378 INFO L226 Difference]: Without dead ends: 3964 [2020-11-29 22:18:32,384 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 237 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:18:32,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3964 states. [2020-11-29 22:18:32,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3964 to 3947. [2020-11-29 22:18:32,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3947 states. [2020-11-29 22:18:32,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3947 states to 3947 states and 4743 transitions. [2020-11-29 22:18:32,519 INFO L78 Accepts]: Start accepts. Automaton has 3947 states and 4743 transitions. Word has length 238 [2020-11-29 22:18:32,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:18:32,520 INFO L481 AbstractCegarLoop]: Abstraction has 3947 states and 4743 transitions. [2020-11-29 22:18:32,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:18:32,521 INFO L276 IsEmpty]: Start isEmpty. Operand 3947 states and 4743 transitions. [2020-11-29 22:18:32,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-11-29 22:18:32,528 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:18:32,529 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:18:32,758 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-11-29 22:18:32,759 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:18:32,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:18:32,759 INFO L82 PathProgramCache]: Analyzing trace with hash -750332818, now seen corresponding path program 1 times [2020-11-29 22:18:32,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:18:32,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643616501] [2020-11-29 22:18:32,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:18:32,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:18:33,038 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-11-29 22:18:33,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643616501] [2020-11-29 22:18:33,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:18:33,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:18:33,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298354692] [2020-11-29 22:18:33,040 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:18:33,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:18:33,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:18:33,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:18:33,041 INFO L87 Difference]: Start difference. First operand 3947 states and 4743 transitions. Second operand 3 states. [2020-11-29 22:18:34,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:18:34,608 INFO L93 Difference]: Finished difference Result 8253 states and 10181 transitions. [2020-11-29 22:18:34,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:18:34,610 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 243 [2020-11-29 22:18:34,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:18:34,639 INFO L225 Difference]: With dead ends: 8253 [2020-11-29 22:18:34,639 INFO L226 Difference]: Without dead ends: 5234 [2020-11-29 22:18:34,645 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:18:34,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5234 states. [2020-11-29 22:18:34,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5234 to 3566. [2020-11-29 22:18:34,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3566 states. [2020-11-29 22:18:34,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3566 states to 3566 states and 4338 transitions. [2020-11-29 22:18:34,739 INFO L78 Accepts]: Start accepts. Automaton has 3566 states and 4338 transitions. Word has length 243 [2020-11-29 22:18:34,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:18:34,739 INFO L481 AbstractCegarLoop]: Abstraction has 3566 states and 4338 transitions. [2020-11-29 22:18:34,740 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:18:34,740 INFO L276 IsEmpty]: Start isEmpty. Operand 3566 states and 4338 transitions. [2020-11-29 22:18:34,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-11-29 22:18:34,745 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:18:34,745 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-29 22:18:34,745 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 22:18:34,746 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:18:34,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:18:34,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1068177515, now seen corresponding path program 1 times [2020-11-29 22:18:34,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:18:34,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891395744] [2020-11-29 22:18:34,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:18:34,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:18:34,954 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-11-29 22:18:34,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891395744] [2020-11-29 22:18:34,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:18:34,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:18:34,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452008204] [2020-11-29 22:18:34,955 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:18:34,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:18:34,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:18:34,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:18:34,957 INFO L87 Difference]: Start difference. First operand 3566 states and 4338 transitions. Second operand 3 states. [2020-11-29 22:18:36,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:18:36,131 INFO L93 Difference]: Finished difference Result 8637 states and 10680 transitions. [2020-11-29 22:18:36,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:18:36,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 244 [2020-11-29 22:18:36,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:18:36,156 INFO L225 Difference]: With dead ends: 8637 [2020-11-29 22:18:36,157 INFO L226 Difference]: Without dead ends: 5073 [2020-11-29 22:18:36,161 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:18:36,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5073 states. [2020-11-29 22:18:36,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5073 to 5068. [2020-11-29 22:18:36,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5068 states. [2020-11-29 22:18:36,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5068 states to 5068 states and 6200 transitions. [2020-11-29 22:18:36,268 INFO L78 Accepts]: Start accepts. Automaton has 5068 states and 6200 transitions. Word has length 244 [2020-11-29 22:18:36,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:18:36,269 INFO L481 AbstractCegarLoop]: Abstraction has 5068 states and 6200 transitions. [2020-11-29 22:18:36,269 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:18:36,269 INFO L276 IsEmpty]: Start isEmpty. Operand 5068 states and 6200 transitions. [2020-11-29 22:18:36,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2020-11-29 22:18:36,276 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:18:36,276 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:18:36,276 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 22:18:36,276 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:18:36,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:18:36,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1226390420, now seen corresponding path program 1 times [2020-11-29 22:18:36,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:18:36,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123165152] [2020-11-29 22:18:36,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:18:36,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:18:36,500 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:18:36,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123165152] [2020-11-29 22:18:36,502 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:18:36,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:18:36,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861949986] [2020-11-29 22:18:36,503 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:18:36,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:18:36,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:18:36,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:18:36,504 INFO L87 Difference]: Start difference. First operand 5068 states and 6200 transitions. Second operand 3 states. [2020-11-29 22:18:37,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:18:37,889 INFO L93 Difference]: Finished difference Result 14029 states and 17289 transitions. [2020-11-29 22:18:37,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:18:37,890 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 259 [2020-11-29 22:18:37,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:18:37,948 INFO L225 Difference]: With dead ends: 14029 [2020-11-29 22:18:37,948 INFO L226 Difference]: Without dead ends: 8963 [2020-11-29 22:18:37,956 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:18:37,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8963 states. [2020-11-29 22:18:38,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8963 to 8958. [2020-11-29 22:18:38,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8958 states. [2020-11-29 22:18:38,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8958 states to 8958 states and 10760 transitions. [2020-11-29 22:18:38,174 INFO L78 Accepts]: Start accepts. Automaton has 8958 states and 10760 transitions. Word has length 259 [2020-11-29 22:18:38,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:18:38,175 INFO L481 AbstractCegarLoop]: Abstraction has 8958 states and 10760 transitions. [2020-11-29 22:18:38,175 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:18:38,175 INFO L276 IsEmpty]: Start isEmpty. Operand 8958 states and 10760 transitions. [2020-11-29 22:18:38,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-11-29 22:18:38,183 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:18:38,184 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-29 22:18:38,184 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-29 22:18:38,184 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:18:38,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:18:38,185 INFO L82 PathProgramCache]: Analyzing trace with hash 785503469, now seen corresponding path program 1 times [2020-11-29 22:18:38,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:18:38,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504864019] [2020-11-29 22:18:38,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:18:38,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:18:38,529 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:18:38,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504864019] [2020-11-29 22:18:38,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:18:38,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 22:18:38,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735774524] [2020-11-29 22:18:38,532 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 22:18:38,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:18:38,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:18:38,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:18:38,533 INFO L87 Difference]: Start difference. First operand 8958 states and 10760 transitions. Second operand 5 states. [2020-11-29 22:18:41,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:18:41,180 INFO L93 Difference]: Finished difference Result 27342 states and 33268 transitions. [2020-11-29 22:18:41,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 22:18:41,182 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 269 [2020-11-29 22:18:41,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:18:41,227 INFO L225 Difference]: With dead ends: 27342 [2020-11-29 22:18:41,227 INFO L226 Difference]: Without dead ends: 18386 [2020-11-29 22:18:41,239 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:18:41,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18386 states. [2020-11-29 22:18:41,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18386 to 18356. [2020-11-29 22:18:41,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18356 states. [2020-11-29 22:18:41,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18356 states to 18356 states and 21677 transitions. [2020-11-29 22:18:41,690 INFO L78 Accepts]: Start accepts. Automaton has 18356 states and 21677 transitions. Word has length 269 [2020-11-29 22:18:41,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:18:41,691 INFO L481 AbstractCegarLoop]: Abstraction has 18356 states and 21677 transitions. [2020-11-29 22:18:41,691 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 22:18:41,691 INFO L276 IsEmpty]: Start isEmpty. Operand 18356 states and 21677 transitions. [2020-11-29 22:18:41,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2020-11-29 22:18:41,701 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:18:41,702 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:18:41,702 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-29 22:18:41,702 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:18:41,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:18:41,703 INFO L82 PathProgramCache]: Analyzing trace with hash 2025987779, now seen corresponding path program 1 times [2020-11-29 22:18:41,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:18:41,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063272897] [2020-11-29 22:18:41,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:18:41,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:18:42,111 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 95 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:18:42,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063272897] [2020-11-29 22:18:42,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274319131] [2020-11-29 22:18:42,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ca909ef-7813-4293-bf52-9434fefaa73e/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:18:42,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:18:42,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 22:18:42,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:18:42,503 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 200 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:18:42,503 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 22:18:42,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-29 22:18:42,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735030464] [2020-11-29 22:18:42,505 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:18:42,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:18:42,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:18:42,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-29 22:18:42,506 INFO L87 Difference]: Start difference. First operand 18356 states and 21677 transitions. Second operand 3 states. [2020-11-29 22:18:43,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:18:43,875 INFO L93 Difference]: Finished difference Result 37660 states and 44587 transitions. [2020-11-29 22:18:43,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:18:43,876 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 283 [2020-11-29 22:18:43,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:18:43,921 INFO L225 Difference]: With dead ends: 37660 [2020-11-29 22:18:43,921 INFO L226 Difference]: Without dead ends: 19674 [2020-11-29 22:18:43,944 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-29 22:18:43,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19674 states. [2020-11-29 22:18:44,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19674 to 19294. [2020-11-29 22:18:44,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19294 states. [2020-11-29 22:18:44,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19294 states to 19294 states and 22774 transitions. [2020-11-29 22:18:44,373 INFO L78 Accepts]: Start accepts. Automaton has 19294 states and 22774 transitions. Word has length 283 [2020-11-29 22:18:44,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:18:44,373 INFO L481 AbstractCegarLoop]: Abstraction has 19294 states and 22774 transitions. [2020-11-29 22:18:44,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:18:44,378 INFO L276 IsEmpty]: Start isEmpty. Operand 19294 states and 22774 transitions. [2020-11-29 22:18:44,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2020-11-29 22:18:44,397 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:18:44,398 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:18:44,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:18:44,623 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:18:44,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:18:44,623 INFO L82 PathProgramCache]: Analyzing trace with hash -636834231, now seen corresponding path program 1 times [2020-11-29 22:18:44,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:18:44,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137428637] [2020-11-29 22:18:44,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:18:44,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:18:44,830 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 308 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-11-29 22:18:44,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137428637] [2020-11-29 22:18:44,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:18:44,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:18:44,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403885282] [2020-11-29 22:18:44,832 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:18:44,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:18:44,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:18:44,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:18:44,833 INFO L87 Difference]: Start difference. First operand 19294 states and 22774 transitions. Second operand 3 states. [2020-11-29 22:18:46,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:18:46,367 INFO L93 Difference]: Finished difference Result 41742 states and 49525 transitions. [2020-11-29 22:18:46,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:18:46,368 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 309 [2020-11-29 22:18:46,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:18:46,428 INFO L225 Difference]: With dead ends: 41742 [2020-11-29 22:18:46,428 INFO L226 Difference]: Without dead ends: 22818 [2020-11-29 22:18:46,451 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:18:46,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22818 states. [2020-11-29 22:18:46,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22818 to 22606. [2020-11-29 22:18:46,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22606 states. [2020-11-29 22:18:46,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22606 states to 22606 states and 26493 transitions. [2020-11-29 22:18:46,874 INFO L78 Accepts]: Start accepts. Automaton has 22606 states and 26493 transitions. Word has length 309 [2020-11-29 22:18:46,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:18:46,875 INFO L481 AbstractCegarLoop]: Abstraction has 22606 states and 26493 transitions. [2020-11-29 22:18:46,875 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:18:46,875 INFO L276 IsEmpty]: Start isEmpty. Operand 22606 states and 26493 transitions. [2020-11-29 22:18:46,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2020-11-29 22:18:46,895 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:18:46,895 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:18:46,896 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-29 22:18:46,896 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:18:46,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:18:46,897 INFO L82 PathProgramCache]: Analyzing trace with hash 652259149, now seen corresponding path program 1 times [2020-11-29 22:18:46,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:18:46,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983859827] [2020-11-29 22:18:46,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:18:46,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:18:47,717 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 283 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-11-29 22:18:47,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983859827] [2020-11-29 22:18:47,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:18:47,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 22:18:47,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46363562] [2020-11-29 22:18:47,719 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 22:18:47,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:18:47,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:18:47,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:18:47,721 INFO L87 Difference]: Start difference. First operand 22606 states and 26493 transitions. Second operand 5 states. [2020-11-29 22:18:49,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:18:49,285 INFO L93 Difference]: Finished difference Result 40560 states and 47465 transitions. [2020-11-29 22:18:49,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 22:18:49,286 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 318 [2020-11-29 22:18:49,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:18:49,311 INFO L225 Difference]: With dead ends: 40560 [2020-11-29 22:18:49,311 INFO L226 Difference]: Without dead ends: 18298 [2020-11-29 22:18:49,323 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:18:49,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18298 states. [2020-11-29 22:18:49,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18298 to 16995. [2020-11-29 22:18:49,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16995 states. [2020-11-29 22:18:49,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16995 states to 16995 states and 19131 transitions. [2020-11-29 22:18:49,602 INFO L78 Accepts]: Start accepts. Automaton has 16995 states and 19131 transitions. Word has length 318 [2020-11-29 22:18:49,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:18:49,603 INFO L481 AbstractCegarLoop]: Abstraction has 16995 states and 19131 transitions. [2020-11-29 22:18:49,603 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 22:18:49,603 INFO L276 IsEmpty]: Start isEmpty. Operand 16995 states and 19131 transitions. [2020-11-29 22:18:49,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2020-11-29 22:18:49,731 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:18:49,732 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:18:49,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-29 22:18:49,732 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:18:49,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:18:49,733 INFO L82 PathProgramCache]: Analyzing trace with hash -1652826932, now seen corresponding path program 1 times [2020-11-29 22:18:49,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:18:49,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880990393] [2020-11-29 22:18:49,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:18:49,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:18:50,394 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 221 proven. 72 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2020-11-29 22:18:50,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880990393] [2020-11-29 22:18:50,395 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259866704] [2020-11-29 22:18:50,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ca909ef-7813-4293-bf52-9434fefaa73e/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:18:50,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:18:50,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 22:18:50,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:18:50,794 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 317 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-11-29 22:18:50,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 22:18:50,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-29 22:18:50,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992511122] [2020-11-29 22:18:50,795 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:18:50,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:18:50,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:18:50,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 22:18:50,797 INFO L87 Difference]: Start difference. First operand 16995 states and 19131 transitions. Second operand 3 states. [2020-11-29 22:18:51,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:18:51,873 INFO L93 Difference]: Finished difference Result 36200 states and 40712 transitions. [2020-11-29 22:18:51,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:18:51,874 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 337 [2020-11-29 22:18:51,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:18:51,898 INFO L225 Difference]: With dead ends: 36200 [2020-11-29 22:18:51,898 INFO L226 Difference]: Without dead ends: 19207 [2020-11-29 22:18:51,908 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 22:18:51,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19207 states. [2020-11-29 22:18:52,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19207 to 17363. [2020-11-29 22:18:52,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17363 states. [2020-11-29 22:18:52,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17363 states to 17363 states and 19477 transitions. [2020-11-29 22:18:52,273 INFO L78 Accepts]: Start accepts. Automaton has 17363 states and 19477 transitions. Word has length 337 [2020-11-29 22:18:52,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:18:52,274 INFO L481 AbstractCegarLoop]: Abstraction has 17363 states and 19477 transitions. [2020-11-29 22:18:52,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:18:52,274 INFO L276 IsEmpty]: Start isEmpty. Operand 17363 states and 19477 transitions. [2020-11-29 22:18:52,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2020-11-29 22:18:52,291 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:18:52,292 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:18:52,506 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-11-29 22:18:52,507 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:18:52,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:18:52,507 INFO L82 PathProgramCache]: Analyzing trace with hash 749818793, now seen corresponding path program 1 times [2020-11-29 22:18:52,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:18:52,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177471644] [2020-11-29 22:18:52,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:18:52,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:18:53,341 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 254 proven. 54 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2020-11-29 22:18:53,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177471644] [2020-11-29 22:18:53,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [598919259] [2020-11-29 22:18:53,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ca909ef-7813-4293-bf52-9434fefaa73e/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:18:53,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:18:53,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 22:18:53,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:18:53,870 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 338 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2020-11-29 22:18:53,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 22:18:53,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-29 22:18:53,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517245406] [2020-11-29 22:18:53,871 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:18:53,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:18:53,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:18:53,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 22:18:53,873 INFO L87 Difference]: Start difference. First operand 17363 states and 19477 transitions. Second operand 3 states. [2020-11-29 22:18:54,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:18:54,775 INFO L93 Difference]: Finished difference Result 34910 states and 39137 transitions. [2020-11-29 22:18:54,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:18:54,776 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 358 [2020-11-29 22:18:54,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:18:54,793 INFO L225 Difference]: With dead ends: 34910 [2020-11-29 22:18:54,793 INFO L226 Difference]: Without dead ends: 17733 [2020-11-29 22:18:54,803 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 358 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 22:18:54,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17733 states. [2020-11-29 22:18:55,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17733 to 15523. [2020-11-29 22:18:55,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15523 states. [2020-11-29 22:18:55,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15523 states to 15523 states and 17393 transitions. [2020-11-29 22:18:55,133 INFO L78 Accepts]: Start accepts. Automaton has 15523 states and 17393 transitions. Word has length 358 [2020-11-29 22:18:55,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:18:55,134 INFO L481 AbstractCegarLoop]: Abstraction has 15523 states and 17393 transitions. [2020-11-29 22:18:55,134 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:18:55,134 INFO L276 IsEmpty]: Start isEmpty. Operand 15523 states and 17393 transitions. [2020-11-29 22:18:55,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2020-11-29 22:18:55,154 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:18:55,155 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:18:55,377 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:18:55,378 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:18:55,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:18:55,378 INFO L82 PathProgramCache]: Analyzing trace with hash -578991041, now seen corresponding path program 1 times [2020-11-29 22:18:55,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:18:55,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807181076] [2020-11-29 22:18:55,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:18:55,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:18:56,186 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 267 proven. 78 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-11-29 22:18:56,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807181076] [2020-11-29 22:18:56,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094945955] [2020-11-29 22:18:56,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ca909ef-7813-4293-bf52-9434fefaa73e/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:18:56,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:18:56,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 22:18:56,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:18:56,472 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-11-29 22:18:56,473 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:18:56,479 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:18:56,506 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 22:18:56,559 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 22:18:56,989 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 202 proven. 143 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-11-29 22:18:56,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 22:18:56,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2020-11-29 22:18:56,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137613545] [2020-11-29 22:18:56,991 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 22:18:56,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:18:56,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 22:18:56,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-11-29 22:18:56,992 INFO L87 Difference]: Start difference. First operand 15523 states and 17393 transitions. Second operand 10 states. [2020-11-29 22:19:05,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:19:05,753 INFO L93 Difference]: Finished difference Result 37524 states and 41996 transitions. [2020-11-29 22:19:05,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-11-29 22:19:05,754 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 375 [2020-11-29 22:19:05,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:19:05,780 INFO L225 Difference]: With dead ends: 37524 [2020-11-29 22:19:05,780 INFO L226 Difference]: Without dead ends: 21267 [2020-11-29 22:19:05,790 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2020-11-29 22:19:05,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21267 states. [2020-11-29 22:19:06,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21267 to 14787. [2020-11-29 22:19:06,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14787 states. [2020-11-29 22:19:06,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14787 states to 14787 states and 16416 transitions. [2020-11-29 22:19:06,058 INFO L78 Accepts]: Start accepts. Automaton has 14787 states and 16416 transitions. Word has length 375 [2020-11-29 22:19:06,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:19:06,058 INFO L481 AbstractCegarLoop]: Abstraction has 14787 states and 16416 transitions. [2020-11-29 22:19:06,058 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 22:19:06,059 INFO L276 IsEmpty]: Start isEmpty. Operand 14787 states and 16416 transitions. [2020-11-29 22:19:06,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2020-11-29 22:19:06,077 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:19:06,078 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:19:06,284 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-11-29 22:19:06,284 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:19:06,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:19:06,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1086292137, now seen corresponding path program 1 times [2020-11-29 22:19:06,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:19:06,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021304600] [2020-11-29 22:19:06,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:19:06,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:19:06,900 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 143 proven. 202 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2020-11-29 22:19:06,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021304600] [2020-11-29 22:19:06,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723682857] [2020-11-29 22:19:06,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ca909ef-7813-4293-bf52-9434fefaa73e/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:19:07,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:19:07,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 22:19:07,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:19:07,072 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:19:07,104 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:19:07,116 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:19:07,465 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 395 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-11-29 22:19:07,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 22:19:07,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2020-11-29 22:19:07,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641639028] [2020-11-29 22:19:07,467 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 22:19:07,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:19:07,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:19:07,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-11-29 22:19:07,468 INFO L87 Difference]: Start difference. First operand 14787 states and 16416 transitions. Second operand 5 states. [2020-11-29 22:19:09,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:19:09,977 INFO L93 Difference]: Finished difference Result 30871 states and 34314 transitions. [2020-11-29 22:19:09,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 22:19:09,978 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 381 [2020-11-29 22:19:09,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:19:10,005 INFO L225 Difference]: With dead ends: 30871 [2020-11-29 22:19:10,006 INFO L226 Difference]: Without dead ends: 16454 [2020-11-29 22:19:10,016 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 378 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-11-29 22:19:10,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16454 states. [2020-11-29 22:19:10,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16454 to 14975. [2020-11-29 22:19:10,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14975 states. [2020-11-29 22:19:10,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14975 states to 14975 states and 16614 transitions. [2020-11-29 22:19:10,321 INFO L78 Accepts]: Start accepts. Automaton has 14975 states and 16614 transitions. Word has length 381 [2020-11-29 22:19:10,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:19:10,322 INFO L481 AbstractCegarLoop]: Abstraction has 14975 states and 16614 transitions. [2020-11-29 22:19:10,322 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 22:19:10,322 INFO L276 IsEmpty]: Start isEmpty. Operand 14975 states and 16614 transitions. [2020-11-29 22:19:10,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2020-11-29 22:19:10,340 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:19:10,340 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:19:10,566 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-11-29 22:19:10,567 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:19:10,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:19:10,567 INFO L82 PathProgramCache]: Analyzing trace with hash -985761281, now seen corresponding path program 1 times [2020-11-29 22:19:10,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:19:10,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351357482] [2020-11-29 22:19:10,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:19:10,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:19:11,316 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 143 proven. 211 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-11-29 22:19:11,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351357482] [2020-11-29 22:19:11,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660191752] [2020-11-29 22:19:11,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ca909ef-7813-4293-bf52-9434fefaa73e/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:19:11,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:19:11,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 22:19:11,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:19:11,777 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 354 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-11-29 22:19:11,777 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 22:19:11,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-29 22:19:11,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447920858] [2020-11-29 22:19:11,779 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:19:11,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:19:11,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:19:11,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-29 22:19:11,780 INFO L87 Difference]: Start difference. First operand 14975 states and 16614 transitions. Second operand 3 states. [2020-11-29 22:19:12,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:19:12,926 INFO L93 Difference]: Finished difference Result 32550 states and 36311 transitions. [2020-11-29 22:19:12,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:19:12,927 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 395 [2020-11-29 22:19:12,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:19:12,943 INFO L225 Difference]: With dead ends: 32550 [2020-11-29 22:19:12,943 INFO L226 Difference]: Without dead ends: 17945 [2020-11-29 22:19:12,949 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 394 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-29 22:19:12,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17945 states. [2020-11-29 22:19:13,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17945 to 16462. [2020-11-29 22:19:13,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16462 states. [2020-11-29 22:19:13,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16462 states to 16462 states and 18283 transitions. [2020-11-29 22:19:13,134 INFO L78 Accepts]: Start accepts. Automaton has 16462 states and 18283 transitions. Word has length 395 [2020-11-29 22:19:13,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:19:13,135 INFO L481 AbstractCegarLoop]: Abstraction has 16462 states and 18283 transitions. [2020-11-29 22:19:13,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:19:13,135 INFO L276 IsEmpty]: Start isEmpty. Operand 16462 states and 18283 transitions. [2020-11-29 22:19:13,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2020-11-29 22:19:13,146 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:19:13,147 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:19:13,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-11-29 22:19:13,347 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:19:13,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:19:13,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1674921645, now seen corresponding path program 1 times [2020-11-29 22:19:13,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:19:13,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713335239] [2020-11-29 22:19:13,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:19:13,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:19:13,640 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-11-29 22:19:13,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713335239] [2020-11-29 22:19:13,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:19:13,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:19:13,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387806535] [2020-11-29 22:19:13,642 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:19:13,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:19:13,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:19:13,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:19:13,644 INFO L87 Difference]: Start difference. First operand 16462 states and 18283 transitions. Second operand 3 states. [2020-11-29 22:19:14,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:19:14,979 INFO L93 Difference]: Finished difference Result 35687 states and 39600 transitions. [2020-11-29 22:19:14,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:19:14,980 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 405 [2020-11-29 22:19:14,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:19:14,998 INFO L225 Difference]: With dead ends: 35687 [2020-11-29 22:19:14,998 INFO L226 Difference]: Without dead ends: 19595 [2020-11-29 22:19:15,006 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:19:15,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19595 states. [2020-11-29 22:19:15,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19595 to 18666. [2020-11-29 22:19:15,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18666 states. [2020-11-29 22:19:15,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18666 states to 18666 states and 20547 transitions. [2020-11-29 22:19:15,202 INFO L78 Accepts]: Start accepts. Automaton has 18666 states and 20547 transitions. Word has length 405 [2020-11-29 22:19:15,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:19:15,202 INFO L481 AbstractCegarLoop]: Abstraction has 18666 states and 20547 transitions. [2020-11-29 22:19:15,202 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:19:15,202 INFO L276 IsEmpty]: Start isEmpty. Operand 18666 states and 20547 transitions. [2020-11-29 22:19:15,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2020-11-29 22:19:15,216 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:19:15,216 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:19:15,217 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-29 22:19:15,217 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:19:15,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:19:15,217 INFO L82 PathProgramCache]: Analyzing trace with hash -394519000, now seen corresponding path program 1 times [2020-11-29 22:19:15,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:19:15,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097691338] [2020-11-29 22:19:15,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:19:15,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:19:15,716 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 143 proven. 229 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2020-11-29 22:19:15,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097691338] [2020-11-29 22:19:15,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124929595] [2020-11-29 22:19:15,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ca909ef-7813-4293-bf52-9434fefaa73e/bin/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:19:15,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:19:15,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-29 22:19:15,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:19:16,023 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-29 22:19:16,037 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:19:16,040 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:19:16,060 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:19:16,067 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:19:16,746 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 248 proven. 230 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:19:16,746 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 22:19:16,746 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6] total 9 [2020-11-29 22:19:16,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662743906] [2020-11-29 22:19:16,747 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 22:19:16,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:19:16,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 22:19:16,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-11-29 22:19:16,748 INFO L87 Difference]: Start difference. First operand 18666 states and 20547 transitions. Second operand 10 states. [2020-11-29 22:19:24,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:19:24,753 INFO L93 Difference]: Finished difference Result 53831 states and 59064 transitions. [2020-11-29 22:19:24,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-29 22:19:24,755 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 417 [2020-11-29 22:19:24,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:19:24,804 INFO L225 Difference]: With dead ends: 53831 [2020-11-29 22:19:24,805 INFO L226 Difference]: Without dead ends: 35535 [2020-11-29 22:19:24,824 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 412 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2020-11-29 22:19:24,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35535 states. [2020-11-29 22:19:25,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35535 to 31578. [2020-11-29 22:19:25,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31578 states. [2020-11-29 22:19:25,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31578 states to 31578 states and 34640 transitions. [2020-11-29 22:19:25,255 INFO L78 Accepts]: Start accepts. Automaton has 31578 states and 34640 transitions. Word has length 417 [2020-11-29 22:19:25,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:19:25,255 INFO L481 AbstractCegarLoop]: Abstraction has 31578 states and 34640 transitions. [2020-11-29 22:19:25,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 22:19:25,255 INFO L276 IsEmpty]: Start isEmpty. Operand 31578 states and 34640 transitions. [2020-11-29 22:19:25,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2020-11-29 22:19:25,266 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:19:25,266 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:19:25,467 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:19:25,468 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:19:25,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:19:25,468 INFO L82 PathProgramCache]: Analyzing trace with hash -188128846, now seen corresponding path program 1 times [2020-11-29 22:19:25,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:19:25,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414028196] [2020-11-29 22:19:25,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:19:25,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:19:26,371 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 480 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:19:26,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414028196] [2020-11-29 22:19:26,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1097800414] [2020-11-29 22:19:26,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ca909ef-7813-4293-bf52-9434fefaa73e/bin/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:19:26,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:19:26,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 22:19:26,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:19:26,577 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 22:19:26,593 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:19:26,606 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:19:27,057 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 381 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-11-29 22:19:27,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 22:19:27,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2020-11-29 22:19:27,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101722912] [2020-11-29 22:19:27,058 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 22:19:27,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:19:27,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 22:19:27,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-11-29 22:19:27,059 INFO L87 Difference]: Start difference. First operand 31578 states and 34640 transitions. Second operand 4 states. [2020-11-29 22:19:28,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:19:28,938 INFO L93 Difference]: Finished difference Result 60019 states and 65937 transitions. [2020-11-29 22:19:28,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:19:28,939 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 433 [2020-11-29 22:19:28,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:19:28,967 INFO L225 Difference]: With dead ends: 60019 [2020-11-29 22:19:28,967 INFO L226 Difference]: Without dead ends: 31949 [2020-11-29 22:19:28,975 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 431 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-11-29 22:19:28,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31949 states. [2020-11-29 22:19:29,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31949 to 31946. [2020-11-29 22:19:29,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31946 states. [2020-11-29 22:19:29,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31946 states to 31946 states and 34999 transitions. [2020-11-29 22:19:29,336 INFO L78 Accepts]: Start accepts. Automaton has 31946 states and 34999 transitions. Word has length 433 [2020-11-29 22:19:29,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:19:29,336 INFO L481 AbstractCegarLoop]: Abstraction has 31946 states and 34999 transitions. [2020-11-29 22:19:29,336 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 22:19:29,337 INFO L276 IsEmpty]: Start isEmpty. Operand 31946 states and 34999 transitions. [2020-11-29 22:19:29,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2020-11-29 22:19:29,350 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:19:29,350 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:19:29,552 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:19:29,552 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:19:29,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:19:29,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1274936959, now seen corresponding path program 1 times [2020-11-29 22:19:29,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:19:29,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832047175] [2020-11-29 22:19:29,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:19:29,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:19:29,924 INFO L134 CoverageAnalysis]: Checked inductivity of 752 backedges. 492 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2020-11-29 22:19:29,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832047175] [2020-11-29 22:19:29,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:19:29,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:19:29,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716470718] [2020-11-29 22:19:29,925 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:19:29,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:19:29,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:19:29,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:19:29,927 INFO L87 Difference]: Start difference. First operand 31946 states and 34999 transitions. Second operand 3 states. [2020-11-29 22:19:31,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:19:31,264 INFO L93 Difference]: Finished difference Result 63695 states and 69955 transitions. [2020-11-29 22:19:31,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:19:31,268 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 477 [2020-11-29 22:19:31,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:19:31,302 INFO L225 Difference]: With dead ends: 63695 [2020-11-29 22:19:31,302 INFO L226 Difference]: Without dead ends: 34337 [2020-11-29 22:19:31,315 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:19:31,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34337 states. [2020-11-29 22:19:31,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34337 to 30639. [2020-11-29 22:19:31,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30639 states. [2020-11-29 22:19:31,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30639 states to 30639 states and 33406 transitions. [2020-11-29 22:19:31,670 INFO L78 Accepts]: Start accepts. Automaton has 30639 states and 33406 transitions. Word has length 477 [2020-11-29 22:19:31,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:19:31,671 INFO L481 AbstractCegarLoop]: Abstraction has 30639 states and 33406 transitions. [2020-11-29 22:19:31,671 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:19:31,671 INFO L276 IsEmpty]: Start isEmpty. Operand 30639 states and 33406 transitions. [2020-11-29 22:19:31,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2020-11-29 22:19:31,685 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:19:31,686 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:19:31,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-11-29 22:19:31,686 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:19:31,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:19:31,687 INFO L82 PathProgramCache]: Analyzing trace with hash 1076940731, now seen corresponding path program 1 times [2020-11-29 22:19:31,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:19:31,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650611301] [2020-11-29 22:19:31,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:19:31,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:19:32,096 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 517 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2020-11-29 22:19:32,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650611301] [2020-11-29 22:19:32,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:19:32,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:19:32,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917067354] [2020-11-29 22:19:32,097 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:19:32,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:19:32,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:19:32,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:19:32,098 INFO L87 Difference]: Start difference. First operand 30639 states and 33406 transitions. Second operand 3 states. [2020-11-29 22:19:33,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:19:33,420 INFO L93 Difference]: Finished difference Result 59997 states and 65524 transitions. [2020-11-29 22:19:33,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:19:33,421 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 511 [2020-11-29 22:19:33,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:19:33,462 INFO L225 Difference]: With dead ends: 59997 [2020-11-29 22:19:33,462 INFO L226 Difference]: Without dead ends: 31386 [2020-11-29 22:19:33,475 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:19:33,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31386 states. [2020-11-29 22:19:33,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31386 to 31007. [2020-11-29 22:19:33,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31007 states. [2020-11-29 22:19:33,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31007 states to 31007 states and 33762 transitions. [2020-11-29 22:19:33,966 INFO L78 Accepts]: Start accepts. Automaton has 31007 states and 33762 transitions. Word has length 511 [2020-11-29 22:19:33,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:19:33,967 INFO L481 AbstractCegarLoop]: Abstraction has 31007 states and 33762 transitions. [2020-11-29 22:19:33,967 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:19:33,967 INFO L276 IsEmpty]: Start isEmpty. Operand 31007 states and 33762 transitions. [2020-11-29 22:19:33,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 513 [2020-11-29 22:19:33,990 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:19:33,991 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:19:33,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-11-29 22:19:33,991 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:19:33,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:19:33,992 INFO L82 PathProgramCache]: Analyzing trace with hash 224526932, now seen corresponding path program 1 times [2020-11-29 22:19:33,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:19:33,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506723172] [2020-11-29 22:19:33,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:19:34,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:19:35,201 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 514 proven. 3 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2020-11-29 22:19:35,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506723172] [2020-11-29 22:19:35,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5279245] [2020-11-29 22:19:35,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ca909ef-7813-4293-bf52-9434fefaa73e/bin/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:19:35,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:19:35,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 22:19:35,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:19:35,900 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 517 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2020-11-29 22:19:35,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 22:19:35,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2020-11-29 22:19:35,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939697611] [2020-11-29 22:19:35,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 22:19:35,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:19:35,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 22:19:35,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-11-29 22:19:35,902 INFO L87 Difference]: Start difference. First operand 31007 states and 33762 transitions. Second operand 4 states. [2020-11-29 22:19:38,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:19:38,044 INFO L93 Difference]: Finished difference Result 62553 states and 68164 transitions. [2020-11-29 22:19:38,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 22:19:38,045 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 512 [2020-11-29 22:19:38,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:19:38,077 INFO L225 Difference]: With dead ends: 62553 [2020-11-29 22:19:38,077 INFO L226 Difference]: Without dead ends: 31732 [2020-11-29 22:19:38,088 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 516 GetRequests, 510 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-11-29 22:19:38,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31732 states. [2020-11-29 22:19:38,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31732 to 29340. [2020-11-29 22:19:38,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29340 states. [2020-11-29 22:19:38,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29340 states to 29340 states and 31825 transitions. [2020-11-29 22:19:38,412 INFO L78 Accepts]: Start accepts. Automaton has 29340 states and 31825 transitions. Word has length 512 [2020-11-29 22:19:38,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:19:38,412 INFO L481 AbstractCegarLoop]: Abstraction has 29340 states and 31825 transitions. [2020-11-29 22:19:38,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 22:19:38,412 INFO L276 IsEmpty]: Start isEmpty. Operand 29340 states and 31825 transitions. [2020-11-29 22:19:38,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 540 [2020-11-29 22:19:38,434 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:19:38,434 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:19:38,650 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:19:38,651 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:19:38,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:19:38,651 INFO L82 PathProgramCache]: Analyzing trace with hash 2045814226, now seen corresponding path program 1 times [2020-11-29 22:19:38,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:19:38,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791496360] [2020-11-29 22:19:38,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:19:38,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:19:39,961 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 609 proven. 259 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:19:39,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791496360] [2020-11-29 22:19:39,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72263606] [2020-11-29 22:19:39,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ca909ef-7813-4293-bf52-9434fefaa73e/bin/uautomizer/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:19:40,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:19:40,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 22:19:40,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:19:40,381 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 696 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2020-11-29 22:19:40,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 22:19:40,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2020-11-29 22:19:40,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463353402] [2020-11-29 22:19:40,382 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:19:40,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:19:40,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:19:40,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-11-29 22:19:40,382 INFO L87 Difference]: Start difference. First operand 29340 states and 31825 transitions. Second operand 3 states. [2020-11-29 22:19:41,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:19:41,643 INFO L93 Difference]: Finished difference Result 58687 states and 63627 transitions. [2020-11-29 22:19:41,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:19:41,644 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 539 [2020-11-29 22:19:41,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:19:41,673 INFO L225 Difference]: With dead ends: 58687 [2020-11-29 22:19:41,674 INFO L226 Difference]: Without dead ends: 31559 [2020-11-29 22:19:41,792 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 548 GetRequests, 539 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-11-29 22:19:41,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31559 states. [2020-11-29 22:19:42,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31559 to 29340. [2020-11-29 22:19:42,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29340 states. [2020-11-29 22:19:42,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29340 states to 29340 states and 31813 transitions. [2020-11-29 22:19:42,098 INFO L78 Accepts]: Start accepts. Automaton has 29340 states and 31813 transitions. Word has length 539 [2020-11-29 22:19:42,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:19:42,098 INFO L481 AbstractCegarLoop]: Abstraction has 29340 states and 31813 transitions. [2020-11-29 22:19:42,098 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:19:42,098 INFO L276 IsEmpty]: Start isEmpty. Operand 29340 states and 31813 transitions. [2020-11-29 22:19:42,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 541 [2020-11-29 22:19:42,113 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:19:42,113 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:19:42,315 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2020-11-29 22:19:42,315 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:19:42,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:19:42,316 INFO L82 PathProgramCache]: Analyzing trace with hash -1951502017, now seen corresponding path program 1 times [2020-11-29 22:19:42,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:19:42,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380386955] [2020-11-29 22:19:42,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:19:42,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:19:43,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 670 proven. 207 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2020-11-29 22:19:43,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380386955] [2020-11-29 22:19:43,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2135337689] [2020-11-29 22:19:43,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ca909ef-7813-4293-bf52-9434fefaa73e/bin/uautomizer/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:19:43,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:19:43,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 749 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 22:19:43,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:19:43,427 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:19:43,440 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:19:43,444 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:19:43,876 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 839 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2020-11-29 22:19:43,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 22:19:43,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2020-11-29 22:19:43,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602464621] [2020-11-29 22:19:43,878 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 22:19:43,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:19:43,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 22:19:43,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-11-29 22:19:43,879 INFO L87 Difference]: Start difference. First operand 29340 states and 31813 transitions. Second operand 4 states. [2020-11-29 22:19:46,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:19:46,715 INFO L93 Difference]: Finished difference Result 64575 states and 70006 transitions. [2020-11-29 22:19:46,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:19:46,716 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 540 [2020-11-29 22:19:46,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:19:46,752 INFO L225 Difference]: With dead ends: 64575 [2020-11-29 22:19:46,752 INFO L226 Difference]: Without dead ends: 35605 [2020-11-29 22:19:46,765 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 539 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-11-29 22:19:46,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35605 states. [2020-11-29 22:19:47,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35605 to 29155. [2020-11-29 22:19:47,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29155 states. [2020-11-29 22:19:47,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29155 states to 29155 states and 31507 transitions. [2020-11-29 22:19:47,140 INFO L78 Accepts]: Start accepts. Automaton has 29155 states and 31507 transitions. Word has length 540 [2020-11-29 22:19:47,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:19:47,140 INFO L481 AbstractCegarLoop]: Abstraction has 29155 states and 31507 transitions. [2020-11-29 22:19:47,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 22:19:47,141 INFO L276 IsEmpty]: Start isEmpty. Operand 29155 states and 31507 transitions. [2020-11-29 22:19:47,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2020-11-29 22:19:47,155 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:19:47,155 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:19:47,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2020-11-29 22:19:47,356 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:19:47,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:19:47,356 INFO L82 PathProgramCache]: Analyzing trace with hash 654193192, now seen corresponding path program 1 times [2020-11-29 22:19:47,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:19:47,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884960794] [2020-11-29 22:19:47,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:19:47,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:19:48,118 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 191 proven. 406 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2020-11-29 22:19:48,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884960794] [2020-11-29 22:19:48,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589726853] [2020-11-29 22:19:48,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ca909ef-7813-4293-bf52-9434fefaa73e/bin/uautomizer/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:19:48,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:19:48,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 753 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 22:19:48,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:19:48,353 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 22:19:48,357 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:19:48,387 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:19:49,913 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 241 proven. 454 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2020-11-29 22:19:49,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 22:19:49,913 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 6 [2020-11-29 22:19:49,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35844090] [2020-11-29 22:19:49,914 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 22:19:49,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:19:49,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 22:19:49,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-29 22:19:49,915 INFO L87 Difference]: Start difference. First operand 29155 states and 31507 transitions. Second operand 7 states. [2020-11-29 22:19:55,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:19:55,463 INFO L93 Difference]: Finished difference Result 45386 states and 48892 transitions. [2020-11-29 22:19:55,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 22:19:55,464 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 572 [2020-11-29 22:19:55,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:19:55,506 INFO L225 Difference]: With dead ends: 45386 [2020-11-29 22:19:55,506 INFO L226 Difference]: Without dead ends: 45384 [2020-11-29 22:19:55,514 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 575 GetRequests, 570 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-29 22:19:55,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45384 states. [2020-11-29 22:19:55,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45384 to 32111. [2020-11-29 22:19:55,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32111 states. [2020-11-29 22:19:55,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32111 states to 32111 states and 34665 transitions. [2020-11-29 22:19:55,955 INFO L78 Accepts]: Start accepts. Automaton has 32111 states and 34665 transitions. Word has length 572 [2020-11-29 22:19:55,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:19:55,956 INFO L481 AbstractCegarLoop]: Abstraction has 32111 states and 34665 transitions. [2020-11-29 22:19:55,956 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 22:19:55,956 INFO L276 IsEmpty]: Start isEmpty. Operand 32111 states and 34665 transitions. [2020-11-29 22:19:55,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 584 [2020-11-29 22:19:55,972 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:19:55,972 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:19:56,186 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-11-29 22:19:56,187 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:19:56,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:19:56,187 INFO L82 PathProgramCache]: Analyzing trace with hash -1556985748, now seen corresponding path program 1 times [2020-11-29 22:19:56,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:19:56,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296951777] [2020-11-29 22:19:56,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:19:56,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:19:57,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1213 backedges. 704 proven. 207 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2020-11-29 22:19:57,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296951777] [2020-11-29 22:19:57,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1962229735] [2020-11-29 22:19:57,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ca909ef-7813-4293-bf52-9434fefaa73e/bin/uautomizer/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:19:57,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:19:57,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 22:19:57,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:19:57,499 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 22:19:57,514 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:19:57,520 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:19:58,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1213 backedges. 875 proven. 48 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2020-11-29 22:19:58,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 22:19:58,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2020-11-29 22:19:58,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872488053] [2020-11-29 22:19:58,991 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 22:19:58,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:19:58,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 22:19:58,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-11-29 22:19:58,992 INFO L87 Difference]: Start difference. First operand 32111 states and 34665 transitions. Second operand 10 states. [2020-11-29 22:20:11,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:20:11,395 INFO L93 Difference]: Finished difference Result 80301 states and 86517 transitions. [2020-11-29 22:20:11,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-29 22:20:11,396 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 583 [2020-11-29 22:20:11,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:20:11,451 INFO L225 Difference]: With dead ends: 80301 [2020-11-29 22:20:11,451 INFO L226 Difference]: Without dead ends: 50032 [2020-11-29 22:20:11,469 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 612 GetRequests, 592 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=156, Invalid=306, Unknown=0, NotChecked=0, Total=462 [2020-11-29 22:20:11,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50032 states. [2020-11-29 22:20:12,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50032 to 28051. [2020-11-29 22:20:12,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28051 states. [2020-11-29 22:20:12,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28051 states to 28051 states and 30253 transitions. [2020-11-29 22:20:12,085 INFO L78 Accepts]: Start accepts. Automaton has 28051 states and 30253 transitions. Word has length 583 [2020-11-29 22:20:12,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:20:12,086 INFO L481 AbstractCegarLoop]: Abstraction has 28051 states and 30253 transitions. [2020-11-29 22:20:12,086 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 22:20:12,086 INFO L276 IsEmpty]: Start isEmpty. Operand 28051 states and 30253 transitions. [2020-11-29 22:20:12,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 587 [2020-11-29 22:20:12,100 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:20:12,100 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:20:12,301 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:20:12,301 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:20:12,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:20:12,302 INFO L82 PathProgramCache]: Analyzing trace with hash -346877491, now seen corresponding path program 1 times [2020-11-29 22:20:12,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:20:12,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110875823] [2020-11-29 22:20:12,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:20:12,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:20:12,882 INFO L134 CoverageAnalysis]: Checked inductivity of 1175 backedges. 902 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2020-11-29 22:20:12,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110875823] [2020-11-29 22:20:12,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:20:12,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:20:12,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786211888] [2020-11-29 22:20:12,884 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 22:20:12,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:20:12,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 22:20:12,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:20:12,884 INFO L87 Difference]: Start difference. First operand 28051 states and 30253 transitions. Second operand 4 states. [2020-11-29 22:20:15,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:20:15,446 INFO L93 Difference]: Finished difference Result 58516 states and 63016 transitions. [2020-11-29 22:20:15,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 22:20:15,448 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 586 [2020-11-29 22:20:15,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:20:15,479 INFO L225 Difference]: With dead ends: 58516 [2020-11-29 22:20:15,479 INFO L226 Difference]: Without dead ends: 31569 [2020-11-29 22:20:15,491 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:20:15,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31569 states. [2020-11-29 22:20:15,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31569 to 28049. [2020-11-29 22:20:15,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28049 states. [2020-11-29 22:20:15,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28049 states to 28049 states and 30219 transitions. [2020-11-29 22:20:15,859 INFO L78 Accepts]: Start accepts. Automaton has 28049 states and 30219 transitions. Word has length 586 [2020-11-29 22:20:15,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:20:15,860 INFO L481 AbstractCegarLoop]: Abstraction has 28049 states and 30219 transitions. [2020-11-29 22:20:15,860 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 22:20:15,860 INFO L276 IsEmpty]: Start isEmpty. Operand 28049 states and 30219 transitions. [2020-11-29 22:20:15,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 693 [2020-11-29 22:20:15,877 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:20:15,878 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:20:15,878 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-11-29 22:20:15,879 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:20:15,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:20:15,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1818050975, now seen corresponding path program 1 times [2020-11-29 22:20:15,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:20:15,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167981786] [2020-11-29 22:20:15,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:20:15,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:20:17,086 INFO L134 CoverageAnalysis]: Checked inductivity of 1713 backedges. 919 proven. 255 refuted. 0 times theorem prover too weak. 539 trivial. 0 not checked. [2020-11-29 22:20:17,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167981786] [2020-11-29 22:20:17,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756774271] [2020-11-29 22:20:17,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ca909ef-7813-4293-bf52-9434fefaa73e/bin/uautomizer/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:20:17,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:20:17,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 931 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 22:20:17,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:20:17,350 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:20:17,352 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:20:17,359 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:20:18,150 INFO L134 CoverageAnalysis]: Checked inductivity of 1713 backedges. 877 proven. 105 refuted. 0 times theorem prover too weak. 731 trivial. 0 not checked. [2020-11-29 22:20:18,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 22:20:18,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3] total 7 [2020-11-29 22:20:18,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175775662] [2020-11-29 22:20:18,152 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 22:20:18,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:20:18,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 22:20:18,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-11-29 22:20:18,152 INFO L87 Difference]: Start difference. First operand 28049 states and 30219 transitions. Second operand 8 states. [2020-11-29 22:20:26,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:20:26,949 INFO L93 Difference]: Finished difference Result 67180 states and 72293 transitions. [2020-11-29 22:20:26,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-29 22:20:26,950 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 692 [2020-11-29 22:20:26,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:20:26,989 INFO L225 Difference]: With dead ends: 67180 [2020-11-29 22:20:26,989 INFO L226 Difference]: Without dead ends: 39869 [2020-11-29 22:20:27,002 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 706 GetRequests, 691 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2020-11-29 22:20:27,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39869 states. [2020-11-29 22:20:27,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39869 to 32467. [2020-11-29 22:20:27,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32467 states. [2020-11-29 22:20:27,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32467 states to 32467 states and 34932 transitions. [2020-11-29 22:20:27,597 INFO L78 Accepts]: Start accepts. Automaton has 32467 states and 34932 transitions. Word has length 692 [2020-11-29 22:20:27,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:20:27,597 INFO L481 AbstractCegarLoop]: Abstraction has 32467 states and 34932 transitions. [2020-11-29 22:20:27,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 22:20:27,598 INFO L276 IsEmpty]: Start isEmpty. Operand 32467 states and 34932 transitions. [2020-11-29 22:20:27,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 733 [2020-11-29 22:20:27,622 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:20:27,622 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, 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, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:20:27,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:20:27,823 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:20:27,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:20:27,824 INFO L82 PathProgramCache]: Analyzing trace with hash 796720838, now seen corresponding path program 1 times [2020-11-29 22:20:27,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:20:27,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967644840] [2020-11-29 22:20:27,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:20:27,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:20:28,525 INFO L134 CoverageAnalysis]: Checked inductivity of 1676 backedges. 1111 proven. 0 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2020-11-29 22:20:28,525 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967644840] [2020-11-29 22:20:28,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:20:28,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:20:28,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318508406] [2020-11-29 22:20:28,527 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:20:28,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:20:28,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:20:28,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:20:28,527 INFO L87 Difference]: Start difference. First operand 32467 states and 34932 transitions. Second operand 3 states. [2020-11-29 22:20:30,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:20:30,164 INFO L93 Difference]: Finished difference Result 63463 states and 68227 transitions. [2020-11-29 22:20:30,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:20:30,166 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 732 [2020-11-29 22:20:30,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:20:30,199 INFO L225 Difference]: With dead ends: 63463 [2020-11-29 22:20:30,199 INFO L226 Difference]: Without dead ends: 33022 [2020-11-29 22:20:30,213 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:20:30,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33022 states. [2020-11-29 22:20:30,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33022 to 29335. [2020-11-29 22:20:30,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29335 states. [2020-11-29 22:20:30,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29335 states to 29335 states and 31499 transitions. [2020-11-29 22:20:30,765 INFO L78 Accepts]: Start accepts. Automaton has 29335 states and 31499 transitions. Word has length 732 [2020-11-29 22:20:30,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:20:30,765 INFO L481 AbstractCegarLoop]: Abstraction has 29335 states and 31499 transitions. [2020-11-29 22:20:30,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:20:30,765 INFO L276 IsEmpty]: Start isEmpty. Operand 29335 states and 31499 transitions. [2020-11-29 22:20:30,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 793 [2020-11-29 22:20:30,785 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:20:30,785 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, 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, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:20:30,785 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-11-29 22:20:30,785 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:20:30,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:20:30,786 INFO L82 PathProgramCache]: Analyzing trace with hash 395853350, now seen corresponding path program 1 times [2020-11-29 22:20:30,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:20:30,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816993224] [2020-11-29 22:20:30,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:20:30,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:20:31,435 INFO L134 CoverageAnalysis]: Checked inductivity of 1786 backedges. 1306 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2020-11-29 22:20:31,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816993224] [2020-11-29 22:20:31,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:20:31,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:20:31,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176734404] [2020-11-29 22:20:31,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:20:31,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:20:31,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:20:31,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:20:31,437 INFO L87 Difference]: Start difference. First operand 29335 states and 31499 transitions. Second operand 3 states. [2020-11-29 22:20:33,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:20:33,063 INFO L93 Difference]: Finished difference Result 59597 states and 64042 transitions. [2020-11-29 22:20:33,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:20:33,064 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 792 [2020-11-29 22:20:33,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:20:33,202 INFO L225 Difference]: With dead ends: 59597 [2020-11-29 22:20:33,202 INFO L226 Difference]: Without dead ends: 30632 [2020-11-29 22:20:33,208 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:20:33,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30632 states. [2020-11-29 22:20:33,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30632 to 20681. [2020-11-29 22:20:33,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20681 states. [2020-11-29 22:20:33,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20681 states to 20681 states and 22122 transitions. [2020-11-29 22:20:33,495 INFO L78 Accepts]: Start accepts. Automaton has 20681 states and 22122 transitions. Word has length 792 [2020-11-29 22:20:33,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:20:33,495 INFO L481 AbstractCegarLoop]: Abstraction has 20681 states and 22122 transitions. [2020-11-29 22:20:33,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:20:33,496 INFO L276 IsEmpty]: Start isEmpty. Operand 20681 states and 22122 transitions. [2020-11-29 22:20:33,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 856 [2020-11-29 22:20:33,512 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:20:33,512 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:20:33,513 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-11-29 22:20:33,513 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:20:33,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:20:33,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1766442720, now seen corresponding path program 1 times [2020-11-29 22:20:33,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:20:33,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082792939] [2020-11-29 22:20:33,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:20:33,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:20:34,379 INFO L134 CoverageAnalysis]: Checked inductivity of 2407 backedges. 1878 proven. 0 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2020-11-29 22:20:34,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082792939] [2020-11-29 22:20:34,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:20:34,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 22:20:34,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185575124] [2020-11-29 22:20:34,381 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 22:20:34,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:20:34,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 22:20:34,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:20:34,382 INFO L87 Difference]: Start difference. First operand 20681 states and 22122 transitions. Second operand 4 states. [2020-11-29 22:20:37,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:20:37,023 INFO L93 Difference]: Finished difference Result 49666 states and 53038 transitions. [2020-11-29 22:20:37,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 22:20:37,025 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 855 [2020-11-29 22:20:37,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:20:37,052 INFO L225 Difference]: With dead ends: 49666 [2020-11-29 22:20:37,052 INFO L226 Difference]: Without dead ends: 28803 [2020-11-29 22:20:37,064 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:20:37,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28803 states. [2020-11-29 22:20:37,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28803 to 22907. [2020-11-29 22:20:37,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22907 states. [2020-11-29 22:20:37,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22907 states to 22907 states and 24440 transitions. [2020-11-29 22:20:37,383 INFO L78 Accepts]: Start accepts. Automaton has 22907 states and 24440 transitions. Word has length 855 [2020-11-29 22:20:37,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:20:37,384 INFO L481 AbstractCegarLoop]: Abstraction has 22907 states and 24440 transitions. [2020-11-29 22:20:37,384 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 22:20:37,384 INFO L276 IsEmpty]: Start isEmpty. Operand 22907 states and 24440 transitions. [2020-11-29 22:20:37,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 878 [2020-11-29 22:20:37,399 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:20:37,400 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:20:37,400 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-11-29 22:20:37,400 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:20:37,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:20:37,401 INFO L82 PathProgramCache]: Analyzing trace with hash 22470354, now seen corresponding path program 1 times [2020-11-29 22:20:37,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:20:37,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003439698] [2020-11-29 22:20:37,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:20:37,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:20:38,613 INFO L134 CoverageAnalysis]: Checked inductivity of 2089 backedges. 1341 proven. 204 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2020-11-29 22:20:38,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003439698] [2020-11-29 22:20:38,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370962245] [2020-11-29 22:20:38,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ca909ef-7813-4293-bf52-9434fefaa73e/bin/uautomizer/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:20:38,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:20:38,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 1112 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 22:20:38,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:20:38,960 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 22:20:38,963 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:20:38,980 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 22:20:40,366 INFO L134 CoverageAnalysis]: Checked inductivity of 2089 backedges. 1391 proven. 252 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked. [2020-11-29 22:20:40,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 22:20:40,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 7 [2020-11-29 22:20:40,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961171550] [2020-11-29 22:20:40,368 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 22:20:40,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:20:40,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 22:20:40,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-29 22:20:40,369 INFO L87 Difference]: Start difference. First operand 22907 states and 24440 transitions. Second operand 7 states. [2020-11-29 22:20:45,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:20:45,156 INFO L93 Difference]: Finished difference Result 33599 states and 35700 transitions. [2020-11-29 22:20:45,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 22:20:45,158 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 877 [2020-11-29 22:20:45,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:20:45,188 INFO L225 Difference]: With dead ends: 33599 [2020-11-29 22:20:45,188 INFO L226 Difference]: Without dead ends: 33597 [2020-11-29 22:20:45,195 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 881 GetRequests, 875 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-29 22:20:45,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33597 states. [2020-11-29 22:20:45,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33597 to 19945. [2020-11-29 22:20:45,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19945 states. [2020-11-29 22:20:45,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19945 states to 19945 states and 21267 transitions. [2020-11-29 22:20:45,595 INFO L78 Accepts]: Start accepts. Automaton has 19945 states and 21267 transitions. Word has length 877 [2020-11-29 22:20:45,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:20:45,596 INFO L481 AbstractCegarLoop]: Abstraction has 19945 states and 21267 transitions. [2020-11-29 22:20:45,596 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 22:20:45,596 INFO L276 IsEmpty]: Start isEmpty. Operand 19945 states and 21267 transitions. [2020-11-29 22:20:45,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 918 [2020-11-29 22:20:45,611 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:20:45,611 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:20:45,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:20:45,812 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:20:45,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:20:45,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1475988593, now seen corresponding path program 1 times [2020-11-29 22:20:45,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:20:45,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455713520] [2020-11-29 22:20:45,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:20:45,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:20:46,860 INFO L134 CoverageAnalysis]: Checked inductivity of 2944 backedges. 2211 proven. 0 refuted. 0 times theorem prover too weak. 733 trivial. 0 not checked. [2020-11-29 22:20:46,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455713520] [2020-11-29 22:20:46,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:20:46,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 22:20:46,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839582573] [2020-11-29 22:20:46,862 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 22:20:46,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:20:46,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 22:20:46,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:20:46,863 INFO L87 Difference]: Start difference. First operand 19945 states and 21267 transitions. Second operand 4 states. [2020-11-29 22:20:49,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:20:49,495 INFO L93 Difference]: Finished difference Result 43755 states and 46627 transitions. [2020-11-29 22:20:49,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 22:20:49,496 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 917 [2020-11-29 22:20:49,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:20:49,517 INFO L225 Difference]: With dead ends: 43755 [2020-11-29 22:20:49,517 INFO L226 Difference]: Without dead ends: 23444 [2020-11-29 22:20:49,526 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:20:49,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23444 states. [2020-11-29 22:20:49,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23444 to 19393. [2020-11-29 22:20:49,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19393 states. [2020-11-29 22:20:49,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19393 states to 19393 states and 20695 transitions. [2020-11-29 22:20:49,806 INFO L78 Accepts]: Start accepts. Automaton has 19393 states and 20695 transitions. Word has length 917 [2020-11-29 22:20:49,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:20:49,807 INFO L481 AbstractCegarLoop]: Abstraction has 19393 states and 20695 transitions. [2020-11-29 22:20:49,807 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 22:20:49,807 INFO L276 IsEmpty]: Start isEmpty. Operand 19393 states and 20695 transitions. [2020-11-29 22:20:49,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1356 [2020-11-29 22:20:49,827 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:20:49,828 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:20:49,828 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-11-29 22:20:49,828 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:20:49,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:20:49,829 INFO L82 PathProgramCache]: Analyzing trace with hash 115678844, now seen corresponding path program 1 times [2020-11-29 22:20:49,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:20:49,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355863936] [2020-11-29 22:20:49,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:20:49,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:20:53,238 INFO L134 CoverageAnalysis]: Checked inductivity of 5854 backedges. 3516 proven. 206 refuted. 0 times theorem prover too weak. 2132 trivial. 0 not checked. [2020-11-29 22:20:53,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355863936] [2020-11-29 22:20:53,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072573537] [2020-11-29 22:20:53,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ca909ef-7813-4293-bf52-9434fefaa73e/bin/uautomizer/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:20:53,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:20:53,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 1737 conjuncts, 21 conjunts are in the unsatisfiable core [2020-11-29 22:20:53,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:20:53,698 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-29 22:20:53,699 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:20:53,720 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:20:53,724 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:20:53,736 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:20:53,892 INFO L603 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-11-29 22:20:53,893 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 22:20:53,895 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:20:53,898 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 22:20:57,083 INFO L134 CoverageAnalysis]: Checked inductivity of 5854 backedges. 3891 proven. 282 refuted. 0 times theorem prover too weak. 1681 trivial. 0 not checked. [2020-11-29 22:20:57,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 22:20:57,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8] total 9 [2020-11-29 22:20:57,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281754879] [2020-11-29 22:20:57,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 22:20:57,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:20:57,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 22:20:57,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-11-29 22:20:57,086 INFO L87 Difference]: Start difference. First operand 19393 states and 20695 transitions. Second operand 10 states. [2020-11-29 22:21:04,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:21:04,219 INFO L93 Difference]: Finished difference Result 39264 states and 41881 transitions. [2020-11-29 22:21:04,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-29 22:21:04,221 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1355 [2020-11-29 22:21:04,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:21:04,237 INFO L225 Difference]: With dead ends: 39264 [2020-11-29 22:21:04,238 INFO L226 Difference]: Without dead ends: 19505 [2020-11-29 22:21:04,245 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1371 GetRequests, 1350 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2020-11-29 22:21:04,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19505 states. [2020-11-29 22:21:04,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19505 to 16437. [2020-11-29 22:21:04,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16437 states. [2020-11-29 22:21:04,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16437 states to 16437 states and 17470 transitions. [2020-11-29 22:21:04,511 INFO L78 Accepts]: Start accepts. Automaton has 16437 states and 17470 transitions. Word has length 1355 [2020-11-29 22:21:04,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:21:04,511 INFO L481 AbstractCegarLoop]: Abstraction has 16437 states and 17470 transitions. [2020-11-29 22:21:04,512 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 22:21:04,512 INFO L276 IsEmpty]: Start isEmpty. Operand 16437 states and 17470 transitions. [2020-11-29 22:21:04,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1469 [2020-11-29 22:21:04,532 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:21:04,533 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-29 22:21:04,733 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2020-11-29 22:21:04,734 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:21:04,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:21:04,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1918978970, now seen corresponding path program 1 times [2020-11-29 22:21:04,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:21:04,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783790458] [2020-11-29 22:21:04,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:21:04,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:21:08,765 INFO L134 CoverageAnalysis]: Checked inductivity of 7001 backedges. 4628 proven. 241 refuted. 0 times theorem prover too weak. 2132 trivial. 0 not checked. [2020-11-29 22:21:08,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783790458] [2020-11-29 22:21:08,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493594196] [2020-11-29 22:21:08,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ca909ef-7813-4293-bf52-9434fefaa73e/bin/uautomizer/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:21:09,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:21:09,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 1874 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 22:21:09,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:21:10,869 INFO L134 CoverageAnalysis]: Checked inductivity of 7001 backedges. 4377 proven. 0 refuted. 0 times theorem prover too weak. 2624 trivial. 0 not checked. [2020-11-29 22:21:10,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 22:21:10,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2020-11-29 22:21:10,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351149176] [2020-11-29 22:21:10,871 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 22:21:10,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:21:10,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 22:21:10,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-11-29 22:21:10,872 INFO L87 Difference]: Start difference. First operand 16437 states and 17470 transitions. Second operand 4 states. [2020-11-29 22:21:12,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:21:12,560 INFO L93 Difference]: Finished difference Result 24008 states and 25410 transitions. [2020-11-29 22:21:12,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 22:21:12,561 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1468 [2020-11-29 22:21:12,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:21:12,562 INFO L225 Difference]: With dead ends: 24008 [2020-11-29 22:21:12,562 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 22:21:12,567 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1473 GetRequests, 1466 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-11-29 22:21:12,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 22:21:12,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 22:21:12,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 22:21:12,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 22:21:12,567 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1468 [2020-11-29 22:21:12,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:21:12,568 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:21:12,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 22:21:12,568 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 22:21:12,568 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 22:21:12,769 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2020-11-29 22:21:12,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 22:21:21,928 WARN L193 SmtUtils]: Spent 9.10 s on a formula simplification. DAG size of input: 1934 DAG size of output: 1589 [2020-11-29 22:21:30,243 WARN L193 SmtUtils]: Spent 8.30 s on a formula simplification. DAG size of input: 1931 DAG size of output: 1589 [2020-11-29 22:22:03,164 WARN L193 SmtUtils]: Spent 32.89 s on a formula simplification. DAG size of input: 1478 DAG size of output: 203 [2020-11-29 22:22:36,343 WARN L193 SmtUtils]: Spent 33.17 s on a formula simplification. DAG size of input: 1478 DAG size of output: 203 [2020-11-29 22:22:36,347 INFO L274 CegarLoopResult]: For program point L498(lines 498 509) no Hoare annotation was computed. [2020-11-29 22:22:36,347 INFO L274 CegarLoopResult]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,348 INFO L274 CegarLoopResult]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2020-11-29 22:22:36,348 INFO L274 CegarLoopResult]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,348 INFO L274 CegarLoopResult]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,348 INFO L274 CegarLoopResult]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,348 INFO L274 CegarLoopResult]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,348 INFO L274 CegarLoopResult]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,348 INFO L274 CegarLoopResult]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,348 INFO L274 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-11-29 22:22:36,348 INFO L274 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-11-29 22:22:36,348 INFO L274 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-11-29 22:22:36,348 INFO L274 CegarLoopResult]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,348 INFO L274 CegarLoopResult]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,348 INFO L274 CegarLoopResult]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,348 INFO L274 CegarLoopResult]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,348 INFO L274 CegarLoopResult]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,349 INFO L274 CegarLoopResult]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,349 INFO L274 CegarLoopResult]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,349 INFO L274 CegarLoopResult]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,349 INFO L274 CegarLoopResult]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,349 INFO L274 CegarLoopResult]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,349 INFO L274 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-11-29 22:22:36,349 INFO L274 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-11-29 22:22:36,349 INFO L274 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-11-29 22:22:36,349 INFO L274 CegarLoopResult]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,349 INFO L274 CegarLoopResult]: For program point L768(lines 768 778) no Hoare annotation was computed. [2020-11-29 22:22:36,349 INFO L274 CegarLoopResult]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2020-11-29 22:22:36,349 INFO L274 CegarLoopResult]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,349 INFO L274 CegarLoopResult]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,349 INFO L274 CegarLoopResult]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,349 INFO L274 CegarLoopResult]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,349 INFO L274 CegarLoopResult]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,350 INFO L274 CegarLoopResult]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,350 INFO L274 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-11-29 22:22:36,350 INFO L274 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-11-29 22:22:36,350 INFO L274 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-11-29 22:22:36,350 INFO L274 CegarLoopResult]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,350 INFO L274 CegarLoopResult]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,350 INFO L274 CegarLoopResult]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,351 INFO L270 CegarLoopResult]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse0 (< 306 ~a23~0)) (.cse17 (<= 0 (div (+ ~a29~0 (- 247)) 15))) (.cse18 (<= ~a29~0 275)) (.cse21 (<= 261 ~a29~0)) (.cse24 (<= ~a29~0 245)) (.cse7 (<= ~a23~0 312)) (.cse27 (<= ~a25~0 9)) (.cse31 (<= ~a23~0 138)) (.cse19 (= ~a25~0 13)) (.cse20 (<= ~a23~0 262)) (.cse14 (<= ~a29~0 220)) (.cse2 (<= 142 ~a29~0)) (.cse25 (<= ~a23~0 600000)) (.cse23 (<= 307 ~a23~0)) (.cse26 (<= 0 (+ ~a23~0 599913))) (.cse13 (= ~a25~0 12)) (.cse16 (<= 312 ~a23~0)) (.cse22 (< 140 ~a29~0)) (.cse9 (<= 130 ~a29~0)) (.cse10 (<= ~a29~0 274)) (.cse3 (= ~a4~0 1)) (.cse4 (<= ~a23~0 599997)) (.cse12 (<= 0 (+ ~a23~0 599772))) (.cse15 (<= (+ ~a23~0 55) 0)) (.cse6 (= ~a25~0 11)) (.cse28 (<= ~a29~0 140)) (.cse29 (<= (+ ~a23~0 43) 0)) (.cse8 (<= ~a25~0 10)) (.cse11 (= ~a4~0 0)) (.cse1 (= ~a8~0 15)) (.cse5 (= ~a3~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse1 (<= 99915 ~a29~0) .cse3 .cse5) (and .cse8 .cse9 .cse1 .cse10 .cse2 .cse3 .cse4 .cse5) (and .cse11 .cse12 (not (= 6 ULTIMATE.start_calculate_output_~input)) .cse1 .cse13 (not (= 3 ULTIMATE.start_calculate_output_~input)) .cse14 .cse5 .cse15) (and .cse16 .cse8 .cse1 .cse3 .cse4 .cse5) (and .cse1 .cse13 (or (and .cse11 .cse17 .cse9 .cse1 .cse13 .cse10) (and .cse18 .cse11 (<= 0 (div (+ ~a29~0 (- 260)) 15)))) .cse5) (and .cse19 .cse1 .cse20 .cse3 .cse21 .cse5) (and .cse8 .cse22 .cse23 .cse9 .cse1 .cse10 .cse24 .cse3 .cse5) (and .cse6 .cse17 .cse7 .cse1 .cse10 .cse3 .cse5) (and .cse8 .cse17 .cse1 .cse25 .cse3 .cse5) (and .cse6 .cse0 .cse17 .cse1 .cse25 .cse5 .cse3) (and .cse18 .cse6 .cse12 .cse7 .cse1 .cse21 .cse3 .cse5) (and .cse19 .cse1 (<= (+ ~a23~0 242) 0) .cse24 .cse3 .cse5) (and (<= 371191 ~a23~0) .cse1 .cse2 .cse25 .cse24 .cse3 .cse5) (and .cse12 .cse7 .cse1 .cse13 .cse3 .cse5) (and .cse26 .cse11 .cse27 .cse28 .cse1 .cse29 .cse5) (and .cse8 .cse28 .cse7 .cse1 .cse3 .cse5) (and .cse8 .cse1 .cse29 .cse3 .cse5) (and .cse11 .cse27 .cse1 .cse29 (exists ((aux_div_aux_mod_v_~a29~0_506_25_36 Int) (aux_div_v_~a29~0_506_25 Int)) (let ((.cse30 (* 299861 aux_div_aux_mod_v_~a29~0_506_25_36))) (and (<= (+ .cse30 10250) ~a29~0) (< .cse30 299861) (<= 0 .cse30) (< 140 (+ .cse30 (* 299861 aux_div_v_~a29~0_506_25)))))) .cse5) (and (= ~a25~0 9) .cse31 .cse1 .cse3 .cse5) (and (or .cse31 .cse28) .cse19 .cse1 .cse20 .cse14 .cse3 .cse5) (and (or (and .cse23 .cse1 .cse13 .cse2 .cse3) (and .cse16 .cse6 .cse9 .cse1 .cse10 .cse2 .cse3)) .cse25 .cse5) (and .cse23 .cse1 (<= 13 ~a25~0) .cse3 .cse4 .cse5) (and .cse26 .cse11 .cse22 .cse9 .cse1 .cse13 .cse10 .cse5 .cse15) (and .cse16 .cse6 .cse22 .cse9 .cse1 .cse10 .cse3 .cse5 .cse4) (and (or (and .cse8 .cse12 .cse11 .cse28 .cse1 .cse15) (and .cse6 .cse11 .cse28 .cse1 .cse29) (and .cse8 .cse11 (<= 10 ~a25~0) .cse1 (<= 0 (+ (div (+ (* ~a29~0 (- 1)) (- 28690)) 5) 49)) (<= (+ ~a23~0 119992) 0))) .cse5))) [2020-11-29 22:22:36,351 INFO L274 CegarLoopResult]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,351 INFO L274 CegarLoopResult]: For program point L705(lines 705 715) no Hoare annotation was computed. [2020-11-29 22:22:36,351 INFO L274 CegarLoopResult]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2020-11-29 22:22:36,351 INFO L274 CegarLoopResult]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,351 INFO L274 CegarLoopResult]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,351 INFO L274 CegarLoopResult]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,351 INFO L274 CegarLoopResult]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,351 INFO L274 CegarLoopResult]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,351 INFO L274 CegarLoopResult]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,351 INFO L274 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-11-29 22:22:36,351 INFO L274 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-11-29 22:22:36,351 INFO L274 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-11-29 22:22:36,352 INFO L277 CegarLoopResult]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2020-11-29 22:22:36,352 INFO L274 CegarLoopResult]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,352 INFO L274 CegarLoopResult]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,352 INFO L274 CegarLoopResult]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,352 INFO L274 CegarLoopResult]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,352 INFO L274 CegarLoopResult]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,352 INFO L274 CegarLoopResult]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,352 INFO L274 CegarLoopResult]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,352 INFO L274 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-11-29 22:22:36,352 INFO L274 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-11-29 22:22:36,352 INFO L274 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-11-29 22:22:36,352 INFO L274 CegarLoopResult]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,352 INFO L274 CegarLoopResult]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,352 INFO L274 CegarLoopResult]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,352 INFO L274 CegarLoopResult]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,352 INFO L274 CegarLoopResult]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,353 INFO L274 CegarLoopResult]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,353 INFO L274 CegarLoopResult]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,353 INFO L274 CegarLoopResult]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,353 INFO L274 CegarLoopResult]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,353 INFO L274 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-11-29 22:22:36,353 INFO L274 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-11-29 22:22:36,353 INFO L274 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-11-29 22:22:36,353 INFO L274 CegarLoopResult]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,354 INFO L270 CegarLoopResult]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse0 (< 306 ~a23~0)) (.cse17 (<= 0 (div (+ ~a29~0 (- 247)) 15))) (.cse18 (<= ~a29~0 275)) (.cse21 (<= 261 ~a29~0)) (.cse24 (<= ~a29~0 245)) (.cse7 (<= ~a23~0 312)) (.cse27 (<= ~a25~0 9)) (.cse31 (<= ~a23~0 138)) (.cse19 (= ~a25~0 13)) (.cse20 (<= ~a23~0 262)) (.cse14 (<= ~a29~0 220)) (.cse2 (<= 142 ~a29~0)) (.cse25 (<= ~a23~0 600000)) (.cse23 (<= 307 ~a23~0)) (.cse26 (<= 0 (+ ~a23~0 599913))) (.cse13 (= ~a25~0 12)) (.cse16 (<= 312 ~a23~0)) (.cse22 (< 140 ~a29~0)) (.cse9 (<= 130 ~a29~0)) (.cse10 (<= ~a29~0 274)) (.cse3 (= ~a4~0 1)) (.cse4 (<= ~a23~0 599997)) (.cse12 (<= 0 (+ ~a23~0 599772))) (.cse15 (<= (+ ~a23~0 55) 0)) (.cse6 (= ~a25~0 11)) (.cse28 (<= ~a29~0 140)) (.cse29 (<= (+ ~a23~0 43) 0)) (.cse8 (<= ~a25~0 10)) (.cse11 (= ~a4~0 0)) (.cse1 (= ~a8~0 15)) (.cse5 (= ~a3~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse1 (<= 99915 ~a29~0) .cse3 .cse5) (and .cse8 .cse9 .cse1 .cse10 .cse2 .cse3 .cse4 .cse5) (and .cse11 .cse12 (not (= 6 ULTIMATE.start_calculate_output_~input)) .cse1 .cse13 (not (= 3 ULTIMATE.start_calculate_output_~input)) .cse14 .cse5 .cse15) (and .cse16 .cse8 .cse1 .cse3 .cse4 .cse5) (and .cse1 .cse13 (or (and .cse11 .cse17 .cse9 .cse1 .cse13 .cse10) (and .cse18 .cse11 (<= 0 (div (+ ~a29~0 (- 260)) 15)))) .cse5) (and .cse19 .cse1 .cse20 .cse3 .cse21 .cse5) (and .cse8 .cse22 .cse23 .cse9 .cse1 .cse10 .cse24 .cse3 .cse5) (and .cse6 .cse17 .cse7 .cse1 .cse10 .cse3 .cse5) (and .cse8 .cse17 .cse1 .cse25 .cse3 .cse5) (and .cse6 .cse0 .cse17 .cse1 .cse25 .cse5 .cse3) (and .cse18 .cse6 .cse12 .cse7 .cse1 .cse21 .cse3 .cse5) (and .cse19 .cse1 (<= (+ ~a23~0 242) 0) .cse24 .cse3 .cse5) (and (<= 371191 ~a23~0) .cse1 .cse2 .cse25 .cse24 .cse3 .cse5) (and .cse12 .cse7 .cse1 .cse13 .cse3 .cse5) (and .cse26 .cse11 .cse27 .cse28 .cse1 .cse29 .cse5) (and .cse8 .cse28 .cse7 .cse1 .cse3 .cse5) (and .cse8 .cse1 .cse29 .cse3 .cse5) (and .cse11 .cse27 .cse1 .cse29 (exists ((aux_div_aux_mod_v_~a29~0_506_25_36 Int) (aux_div_v_~a29~0_506_25 Int)) (let ((.cse30 (* 299861 aux_div_aux_mod_v_~a29~0_506_25_36))) (and (<= (+ .cse30 10250) ~a29~0) (< .cse30 299861) (<= 0 .cse30) (< 140 (+ .cse30 (* 299861 aux_div_v_~a29~0_506_25)))))) .cse5) (and (= ~a25~0 9) .cse31 .cse1 .cse3 .cse5) (and (or .cse31 .cse28) .cse19 .cse1 .cse20 .cse14 .cse3 .cse5) (and (or (and .cse23 .cse1 .cse13 .cse2 .cse3) (and .cse16 .cse6 .cse9 .cse1 .cse10 .cse2 .cse3)) .cse25 .cse5) (and .cse23 .cse1 (<= 13 ~a25~0) .cse3 .cse4 .cse5) (and .cse26 .cse11 .cse22 .cse9 .cse1 .cse13 .cse10 .cse5 .cse15) (and .cse16 .cse6 .cse22 .cse9 .cse1 .cse10 .cse3 .cse5 .cse4) (and (or (and .cse8 .cse12 .cse11 .cse28 .cse1 .cse15) (and .cse6 .cse11 .cse28 .cse1 .cse29) (and .cse8 .cse11 (<= 10 ~a25~0) .cse1 (<= 0 (+ (div (+ (* ~a29~0 (- 1)) (- 28690)) 5) 49)) (<= (+ ~a23~0 119992) 0))) .cse5))) [2020-11-29 22:22:36,354 INFO L274 CegarLoopResult]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,354 INFO L274 CegarLoopResult]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,354 INFO L274 CegarLoopResult]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,354 INFO L274 CegarLoopResult]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,354 INFO L274 CegarLoopResult]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,354 INFO L274 CegarLoopResult]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,354 INFO L274 CegarLoopResult]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,355 INFO L274 CegarLoopResult]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,355 INFO L274 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-11-29 22:22:36,355 INFO L274 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-11-29 22:22:36,355 INFO L274 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-11-29 22:22:36,355 INFO L274 CegarLoopResult]: For program point L980(lines 980 990) no Hoare annotation was computed. [2020-11-29 22:22:36,355 INFO L274 CegarLoopResult]: For program point L914(lines 914 924) no Hoare annotation was computed. [2020-11-29 22:22:36,355 INFO L274 CegarLoopResult]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2020-11-29 22:22:36,355 INFO L274 CegarLoopResult]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2020-11-29 22:22:36,355 INFO L274 CegarLoopResult]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,355 INFO L274 CegarLoopResult]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,355 INFO L274 CegarLoopResult]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,355 INFO L274 CegarLoopResult]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,356 INFO L274 CegarLoopResult]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,356 INFO L274 CegarLoopResult]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,356 INFO L274 CegarLoopResult]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,356 INFO L274 CegarLoopResult]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,356 INFO L274 CegarLoopResult]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,356 INFO L274 CegarLoopResult]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,356 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 22:22:36,356 INFO L274 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-11-29 22:22:36,356 INFO L274 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-11-29 22:22:36,356 INFO L274 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-11-29 22:22:36,356 INFO L274 CegarLoopResult]: For program point L1049(line 1049) no Hoare annotation was computed. [2020-11-29 22:22:36,356 INFO L274 CegarLoopResult]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,356 INFO L274 CegarLoopResult]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,356 INFO L274 CegarLoopResult]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,356 INFO L274 CegarLoopResult]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,356 INFO L274 CegarLoopResult]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,357 INFO L274 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-11-29 22:22:36,357 INFO L274 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-11-29 22:22:36,357 INFO L274 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-11-29 22:22:36,357 INFO L274 CegarLoopResult]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,357 INFO L274 CegarLoopResult]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,357 INFO L274 CegarLoopResult]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,357 INFO L274 CegarLoopResult]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,357 INFO L274 CegarLoopResult]: For program point L525(lines 525 535) no Hoare annotation was computed. [2020-11-29 22:22:36,357 INFO L274 CegarLoopResult]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2020-11-29 22:22:36,357 INFO L274 CegarLoopResult]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,357 INFO L274 CegarLoopResult]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,357 INFO L274 CegarLoopResult]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,358 INFO L274 CegarLoopResult]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,358 INFO L274 CegarLoopResult]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,358 INFO L274 CegarLoopResult]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,358 INFO L274 CegarLoopResult]: For program point L658(lines 658 667) no Hoare annotation was computed. [2020-11-29 22:22:36,358 INFO L274 CegarLoopResult]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2020-11-29 22:22:36,358 INFO L274 CegarLoopResult]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,359 INFO L274 CegarLoopResult]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,359 INFO L274 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-11-29 22:22:36,359 INFO L274 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-11-29 22:22:36,359 INFO L274 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-11-29 22:22:36,359 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 22:22:36,359 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-29 22:22:36,359 INFO L274 CegarLoopResult]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,360 INFO L274 CegarLoopResult]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,360 INFO L274 CegarLoopResult]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,360 INFO L274 CegarLoopResult]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,360 INFO L274 CegarLoopResult]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,360 INFO L274 CegarLoopResult]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,360 INFO L274 CegarLoopResult]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,360 INFO L274 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-11-29 22:22:36,361 INFO L274 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-11-29 22:22:36,361 INFO L274 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-11-29 22:22:36,361 INFO L274 CegarLoopResult]: For program point L926(lines 926 936) no Hoare annotation was computed. [2020-11-29 22:22:36,361 INFO L274 CegarLoopResult]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2020-11-29 22:22:36,361 INFO L274 CegarLoopResult]: For program point L728(lines 728 740) no Hoare annotation was computed. [2020-11-29 22:22:36,361 INFO L274 CegarLoopResult]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2020-11-29 22:22:36,362 INFO L274 CegarLoopResult]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,362 INFO L274 CegarLoopResult]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,362 INFO L274 CegarLoopResult]: For program point L597(lines 597 607) no Hoare annotation was computed. [2020-11-29 22:22:36,362 INFO L274 CegarLoopResult]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2020-11-29 22:22:36,362 INFO L274 CegarLoopResult]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,362 INFO L274 CegarLoopResult]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,362 INFO L274 CegarLoopResult]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,363 INFO L274 CegarLoopResult]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,363 INFO L274 CegarLoopResult]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,363 INFO L274 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-11-29 22:22:36,363 INFO L274 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-11-29 22:22:36,363 INFO L274 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-11-29 22:22:36,363 INFO L274 CegarLoopResult]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,363 INFO L274 CegarLoopResult]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,364 INFO L274 CegarLoopResult]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,364 INFO L274 CegarLoopResult]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,364 INFO L274 CegarLoopResult]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,364 INFO L274 CegarLoopResult]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,364 INFO L274 CegarLoopResult]: For program point L205(line 205) no Hoare annotation was computed. [2020-11-29 22:22:36,364 INFO L274 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-11-29 22:22:36,365 INFO L274 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-11-29 22:22:36,365 INFO L274 CegarLoopResult]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,365 INFO L274 CegarLoopResult]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,365 INFO L274 CegarLoopResult]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,365 INFO L274 CegarLoopResult]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,365 INFO L274 CegarLoopResult]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,365 INFO L274 CegarLoopResult]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,366 INFO L274 CegarLoopResult]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,366 INFO L274 CegarLoopResult]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,366 INFO L274 CegarLoopResult]: For program point L208(line 208) no Hoare annotation was computed. [2020-11-29 22:22:36,366 INFO L274 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-11-29 22:22:36,366 INFO L274 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-11-29 22:22:36,366 INFO L274 CegarLoopResult]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,366 INFO L274 CegarLoopResult]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,367 INFO L274 CegarLoopResult]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,367 INFO L274 CegarLoopResult]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,367 INFO L274 CegarLoopResult]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,367 INFO L274 CegarLoopResult]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,367 INFO L274 CegarLoopResult]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,367 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-29 22:22:36,367 INFO L274 CegarLoopResult]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,368 INFO L274 CegarLoopResult]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,368 INFO L274 CegarLoopResult]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,368 INFO L274 CegarLoopResult]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,368 INFO L274 CegarLoopResult]: For program point L409(lines 409 420) no Hoare annotation was computed. [2020-11-29 22:22:36,368 INFO L274 CegarLoopResult]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2020-11-29 22:22:36,368 INFO L274 CegarLoopResult]: For program point L211(line 211) no Hoare annotation was computed. [2020-11-29 22:22:36,368 INFO L274 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-11-29 22:22:36,369 INFO L274 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-11-29 22:22:36,369 INFO L274 CegarLoopResult]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,369 INFO L274 CegarLoopResult]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,369 INFO L274 CegarLoopResult]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,369 INFO L274 CegarLoopResult]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,369 INFO L274 CegarLoopResult]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,370 INFO L274 CegarLoopResult]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,370 INFO L274 CegarLoopResult]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,370 INFO L274 CegarLoopResult]: For program point L214(line 214) no Hoare annotation was computed. [2020-11-29 22:22:36,370 INFO L274 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-11-29 22:22:36,370 INFO L274 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-11-29 22:22:36,370 INFO L274 CegarLoopResult]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,370 INFO L274 CegarLoopResult]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,371 INFO L274 CegarLoopResult]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,371 INFO L274 CegarLoopResult]: For program point L876(lines 876 885) no Hoare annotation was computed. [2020-11-29 22:22:36,371 INFO L274 CegarLoopResult]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2020-11-29 22:22:36,371 INFO L274 CegarLoopResult]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,371 INFO L274 CegarLoopResult]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,371 INFO L274 CegarLoopResult]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,371 INFO L274 CegarLoopResult]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,372 INFO L274 CegarLoopResult]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,372 INFO L274 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-11-29 22:22:36,372 INFO L274 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-11-29 22:22:36,372 INFO L274 CegarLoopResult]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,372 INFO L274 CegarLoopResult]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,372 INFO L274 CegarLoopResult]: For program point L614(lines 614 624) no Hoare annotation was computed. [2020-11-29 22:22:36,372 INFO L274 CegarLoopResult]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2020-11-29 22:22:36,373 INFO L274 CegarLoopResult]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,373 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 22:22:36,373 INFO L274 CegarLoopResult]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,373 INFO L274 CegarLoopResult]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,373 INFO L274 CegarLoopResult]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,373 INFO L274 CegarLoopResult]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,373 INFO L274 CegarLoopResult]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,374 INFO L274 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-11-29 22:22:36,374 INFO L274 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-11-29 22:22:36,374 INFO L274 CegarLoopResult]: For program point L815(lines 815 825) no Hoare annotation was computed. [2020-11-29 22:22:36,374 INFO L274 CegarLoopResult]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2020-11-29 22:22:36,374 INFO L274 CegarLoopResult]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,374 INFO L274 CegarLoopResult]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,374 INFO L274 CegarLoopResult]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,375 INFO L274 CegarLoopResult]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,375 INFO L274 CegarLoopResult]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,375 INFO L274 CegarLoopResult]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,375 INFO L274 CegarLoopResult]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,375 INFO L274 CegarLoopResult]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,375 INFO L274 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-11-29 22:22:36,376 INFO L274 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-11-29 22:22:36,376 INFO L274 CegarLoopResult]: For program point L950(lines 950 962) no Hoare annotation was computed. [2020-11-29 22:22:36,376 INFO L274 CegarLoopResult]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2020-11-29 22:22:36,376 INFO L274 CegarLoopResult]: For program point L488(lines 488 496) no Hoare annotation was computed. [2020-11-29 22:22:36,376 INFO L274 CegarLoopResult]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2020-11-29 22:22:36,376 INFO L274 CegarLoopResult]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,376 INFO L274 CegarLoopResult]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,377 INFO L274 CegarLoopResult]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,377 INFO L274 CegarLoopResult]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,377 INFO L274 CegarLoopResult]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,377 INFO L274 CegarLoopResult]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,377 INFO L274 CegarLoopResult]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,377 INFO L274 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-11-29 22:22:36,377 INFO L274 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-11-29 22:22:36,378 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 22:22:36,378 INFO L274 CegarLoopResult]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,378 INFO L274 CegarLoopResult]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,378 INFO L274 CegarLoopResult]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,378 INFO L274 CegarLoopResult]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,378 INFO L274 CegarLoopResult]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,379 INFO L274 CegarLoopResult]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,379 INFO L274 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-11-29 22:22:36,379 INFO L274 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-11-29 22:22:36,379 INFO L274 CegarLoopResult]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,379 INFO L274 CegarLoopResult]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,379 INFO L274 CegarLoopResult]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,379 INFO L274 CegarLoopResult]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,380 INFO L274 CegarLoopResult]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,380 INFO L274 CegarLoopResult]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,380 INFO L274 CegarLoopResult]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,380 INFO L274 CegarLoopResult]: For program point L33(lines 33 35) no Hoare annotation was computed. [2020-11-29 22:22:36,380 INFO L274 CegarLoopResult]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2020-11-29 22:22:36,380 INFO L274 CegarLoopResult]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,380 INFO L274 CegarLoopResult]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,381 INFO L274 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-11-29 22:22:36,381 INFO L274 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-11-29 22:22:36,381 INFO L274 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-11-29 22:22:36,381 INFO L274 CegarLoopResult]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2020-11-29 22:22:36,396 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] [2020-11-29 22:22:36,397 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] [2020-11-29 22:22:36,398 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] [2020-11-29 22:22:36,398 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] [2020-11-29 22:22:36,398 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a29~0_506_25,QUANTIFIED] [2020-11-29 22:22:36,415 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] [2020-11-29 22:22:36,416 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] [2020-11-29 22:22:36,416 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] [2020-11-29 22:22:36,416 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] [2020-11-29 22:22:36,416 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a29~0_506_25,QUANTIFIED] [2020-11-29 22:22:36,424 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] [2020-11-29 22:22:36,425 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] [2020-11-29 22:22:36,425 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] [2020-11-29 22:22:36,425 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] [2020-11-29 22:22:36,425 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a29~0_506_25,QUANTIFIED] [2020-11-29 22:22:36,431 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] [2020-11-29 22:22:36,432 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] [2020-11-29 22:22:36,432 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] [2020-11-29 22:22:36,432 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] [2020-11-29 22:22:36,432 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a29~0_506_25,QUANTIFIED] [2020-11-29 22:22:36,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 10:22:36 BoogieIcfgContainer [2020-11-29 22:22:36,438 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 22:22:36,439 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:22:36,439 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:22:36,439 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:22:36,440 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:18:19" (3/4) ... [2020-11-29 22:22:36,444 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 22:22:36,474 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 22:22:36,477 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 22:22:36,479 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 22:22:36,482 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 22:22:36,513 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((((((306 < a23 && a8 == 15) && 142 <= a29) && a4 == 1) && a23 <= 599997) && a3 == 1) || (((((a25 == 11 && a23 <= 312) && a8 == 15) && 99915 <= a29) && a4 == 1) && a3 == 1)) || (((((((a25 <= 10 && 130 <= a29) && a8 == 15) && a29 <= 274) && 142 <= a29) && a4 == 1) && a23 <= 599997) && a3 == 1)) || ((((((((a4 == 0 && 0 <= a23 + 599772) && !(6 == input)) && a8 == 15) && a25 == 12) && !(3 == input)) && a29 <= 220) && a3 == 1) && a23 + 55 <= 0)) || (((((312 <= a23 && a25 <= 10) && a8 == 15) && a4 == 1) && a23 <= 599997) && a3 == 1)) || (((a8 == 15 && a25 == 12) && ((((((a4 == 0 && 0 <= (a29 + -247) / 15) && 130 <= a29) && a8 == 15) && a25 == 12) && a29 <= 274) || ((a29 <= 275 && a4 == 0) && 0 <= (a29 + -260) / 15))) && a3 == 1)) || (((((a25 == 13 && a8 == 15) && a23 <= 262) && a4 == 1) && 261 <= a29) && a3 == 1)) || ((((((((a25 <= 10 && 140 < a29) && 307 <= a23) && 130 <= a29) && a8 == 15) && a29 <= 274) && a29 <= 245) && a4 == 1) && a3 == 1)) || ((((((a25 == 11 && 0 <= (a29 + -247) / 15) && a23 <= 312) && a8 == 15) && a29 <= 274) && a4 == 1) && a3 == 1)) || (((((a25 <= 10 && 0 <= (a29 + -247) / 15) && a8 == 15) && a23 <= 600000) && a4 == 1) && a3 == 1)) || ((((((a25 == 11 && 306 < a23) && 0 <= (a29 + -247) / 15) && a8 == 15) && a23 <= 600000) && a3 == 1) && a4 == 1)) || (((((((a29 <= 275 && a25 == 11) && 0 <= a23 + 599772) && a23 <= 312) && a8 == 15) && 261 <= a29) && a4 == 1) && a3 == 1)) || (((((a25 == 13 && a8 == 15) && a23 + 242 <= 0) && a29 <= 245) && a4 == 1) && a3 == 1)) || ((((((371191 <= a23 && a8 == 15) && 142 <= a29) && a23 <= 600000) && a29 <= 245) && a4 == 1) && a3 == 1)) || (((((0 <= a23 + 599772 && a23 <= 312) && a8 == 15) && a25 == 12) && a4 == 1) && a3 == 1)) || ((((((0 <= a23 + 599913 && a4 == 0) && a25 <= 9) && a29 <= 140) && a8 == 15) && a23 + 43 <= 0) && a3 == 1)) || (((((a25 <= 10 && a29 <= 140) && a23 <= 312) && a8 == 15) && a4 == 1) && a3 == 1)) || ((((a25 <= 10 && a8 == 15) && a23 + 43 <= 0) && a4 == 1) && a3 == 1)) || (((((a4 == 0 && a25 <= 9) && a8 == 15) && a23 + 43 <= 0) && (\exists aux_div_aux_mod_v_~a29~0_506_25_36 : int, aux_div_v_~a29~0_506_25 : int :: ((299861 * aux_div_aux_mod_v_~a29~0_506_25_36 + 10250 <= a29 && 299861 * aux_div_aux_mod_v_~a29~0_506_25_36 < 299861) && 0 <= 299861 * aux_div_aux_mod_v_~a29~0_506_25_36) && 140 < 299861 * aux_div_aux_mod_v_~a29~0_506_25_36 + 299861 * aux_div_v_~a29~0_506_25)) && a3 == 1)) || ((((a25 == 9 && a23 <= 138) && a8 == 15) && a4 == 1) && a3 == 1)) || (((((((a23 <= 138 || a29 <= 140) && a25 == 13) && a8 == 15) && a23 <= 262) && a29 <= 220) && a4 == 1) && a3 == 1)) || (((((((307 <= a23 && a8 == 15) && a25 == 12) && 142 <= a29) && a4 == 1) || ((((((312 <= a23 && a25 == 11) && 130 <= a29) && a8 == 15) && a29 <= 274) && 142 <= a29) && a4 == 1)) && a23 <= 600000) && a3 == 1)) || (((((307 <= a23 && a8 == 15) && 13 <= a25) && a4 == 1) && a23 <= 599997) && a3 == 1)) || ((((((((0 <= a23 + 599913 && a4 == 0) && 140 < a29) && 130 <= a29) && a8 == 15) && a25 == 12) && a29 <= 274) && a3 == 1) && a23 + 55 <= 0)) || ((((((((312 <= a23 && a25 == 11) && 140 < a29) && 130 <= a29) && a8 == 15) && a29 <= 274) && a4 == 1) && a3 == 1) && a23 <= 599997)) || ((((((((a25 <= 10 && 0 <= a23 + 599772) && a4 == 0) && a29 <= 140) && a8 == 15) && a23 + 55 <= 0) || ((((a25 == 11 && a4 == 0) && a29 <= 140) && a8 == 15) && a23 + 43 <= 0)) || (((((a25 <= 10 && a4 == 0) && 10 <= a25) && a8 == 15) && 0 <= (a29 * -1 + -28690) / 5 + 49) && a23 + 119992 <= 0)) && a3 == 1) [2020-11-29 22:22:36,517 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((((((306 < a23 && a8 == 15) && 142 <= a29) && a4 == 1) && a23 <= 599997) && a3 == 1) || (((((a25 == 11 && a23 <= 312) && a8 == 15) && 99915 <= a29) && a4 == 1) && a3 == 1)) || (((((((a25 <= 10 && 130 <= a29) && a8 == 15) && a29 <= 274) && 142 <= a29) && a4 == 1) && a23 <= 599997) && a3 == 1)) || ((((((((a4 == 0 && 0 <= a23 + 599772) && !(6 == input)) && a8 == 15) && a25 == 12) && !(3 == input)) && a29 <= 220) && a3 == 1) && a23 + 55 <= 0)) || (((((312 <= a23 && a25 <= 10) && a8 == 15) && a4 == 1) && a23 <= 599997) && a3 == 1)) || (((a8 == 15 && a25 == 12) && ((((((a4 == 0 && 0 <= (a29 + -247) / 15) && 130 <= a29) && a8 == 15) && a25 == 12) && a29 <= 274) || ((a29 <= 275 && a4 == 0) && 0 <= (a29 + -260) / 15))) && a3 == 1)) || (((((a25 == 13 && a8 == 15) && a23 <= 262) && a4 == 1) && 261 <= a29) && a3 == 1)) || ((((((((a25 <= 10 && 140 < a29) && 307 <= a23) && 130 <= a29) && a8 == 15) && a29 <= 274) && a29 <= 245) && a4 == 1) && a3 == 1)) || ((((((a25 == 11 && 0 <= (a29 + -247) / 15) && a23 <= 312) && a8 == 15) && a29 <= 274) && a4 == 1) && a3 == 1)) || (((((a25 <= 10 && 0 <= (a29 + -247) / 15) && a8 == 15) && a23 <= 600000) && a4 == 1) && a3 == 1)) || ((((((a25 == 11 && 306 < a23) && 0 <= (a29 + -247) / 15) && a8 == 15) && a23 <= 600000) && a3 == 1) && a4 == 1)) || (((((((a29 <= 275 && a25 == 11) && 0 <= a23 + 599772) && a23 <= 312) && a8 == 15) && 261 <= a29) && a4 == 1) && a3 == 1)) || (((((a25 == 13 && a8 == 15) && a23 + 242 <= 0) && a29 <= 245) && a4 == 1) && a3 == 1)) || ((((((371191 <= a23 && a8 == 15) && 142 <= a29) && a23 <= 600000) && a29 <= 245) && a4 == 1) && a3 == 1)) || (((((0 <= a23 + 599772 && a23 <= 312) && a8 == 15) && a25 == 12) && a4 == 1) && a3 == 1)) || ((((((0 <= a23 + 599913 && a4 == 0) && a25 <= 9) && a29 <= 140) && a8 == 15) && a23 + 43 <= 0) && a3 == 1)) || (((((a25 <= 10 && a29 <= 140) && a23 <= 312) && a8 == 15) && a4 == 1) && a3 == 1)) || ((((a25 <= 10 && a8 == 15) && a23 + 43 <= 0) && a4 == 1) && a3 == 1)) || (((((a4 == 0 && a25 <= 9) && a8 == 15) && a23 + 43 <= 0) && (\exists aux_div_aux_mod_v_~a29~0_506_25_36 : int, aux_div_v_~a29~0_506_25 : int :: ((299861 * aux_div_aux_mod_v_~a29~0_506_25_36 + 10250 <= a29 && 299861 * aux_div_aux_mod_v_~a29~0_506_25_36 < 299861) && 0 <= 299861 * aux_div_aux_mod_v_~a29~0_506_25_36) && 140 < 299861 * aux_div_aux_mod_v_~a29~0_506_25_36 + 299861 * aux_div_v_~a29~0_506_25)) && a3 == 1)) || ((((a25 == 9 && a23 <= 138) && a8 == 15) && a4 == 1) && a3 == 1)) || (((((((a23 <= 138 || a29 <= 140) && a25 == 13) && a8 == 15) && a23 <= 262) && a29 <= 220) && a4 == 1) && a3 == 1)) || (((((((307 <= a23 && a8 == 15) && a25 == 12) && 142 <= a29) && a4 == 1) || ((((((312 <= a23 && a25 == 11) && 130 <= a29) && a8 == 15) && a29 <= 274) && 142 <= a29) && a4 == 1)) && a23 <= 600000) && a3 == 1)) || (((((307 <= a23 && a8 == 15) && 13 <= a25) && a4 == 1) && a23 <= 599997) && a3 == 1)) || ((((((((0 <= a23 + 599913 && a4 == 0) && 140 < a29) && 130 <= a29) && a8 == 15) && a25 == 12) && a29 <= 274) && a3 == 1) && a23 + 55 <= 0)) || ((((((((312 <= a23 && a25 == 11) && 140 < a29) && 130 <= a29) && a8 == 15) && a29 <= 274) && a4 == 1) && a3 == 1) && a23 <= 599997)) || ((((((((a25 <= 10 && 0 <= a23 + 599772) && a4 == 0) && a29 <= 140) && a8 == 15) && a23 + 55 <= 0) || ((((a25 == 11 && a4 == 0) && a29 <= 140) && a8 == 15) && a23 + 43 <= 0)) || (((((a25 <= 10 && a4 == 0) && 10 <= a25) && a8 == 15) && 0 <= (a29 * -1 + -28690) / 5 + 49) && a23 + 119992 <= 0)) && a3 == 1) [2020-11-29 22:22:36,649 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7ca909ef-7813-4293-bf52-9434fefaa73e/bin/uautomizer/witness.graphml [2020-11-29 22:22:36,650 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:22:36,651 INFO L168 Benchmark]: Toolchain (without parser) took 261314.38 ms. Allocated memory was 104.9 MB in the beginning and 3.8 GB in the end (delta: 3.7 GB). Free memory was 72.9 MB in the beginning and 2.0 GB in the end (delta: -1.9 GB). Peak memory consumption was 1.7 GB. Max. memory is 16.1 GB. [2020-11-29 22:22:36,651 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 83.9 MB. Free memory was 41.4 MB in the beginning and 41.3 MB in the end (delta: 75.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:22:36,652 INFO L168 Benchmark]: CACSL2BoogieTranslator took 923.28 ms. Allocated memory is still 104.9 MB. Free memory was 72.9 MB in the beginning and 48.6 MB in the end (delta: 24.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:22:36,652 INFO L168 Benchmark]: Boogie Procedure Inliner took 190.65 ms. Allocated memory is still 104.9 MB. Free memory was 48.6 MB in the beginning and 68.4 MB in the end (delta: -19.8 MB). Peak memory consumption was 19.3 MB. Max. memory is 16.1 GB. [2020-11-29 22:22:36,653 INFO L168 Benchmark]: Boogie Preprocessor took 127.86 ms. Allocated memory is still 104.9 MB. Free memory was 68.4 MB in the beginning and 57.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 22:22:36,653 INFO L168 Benchmark]: RCFGBuilder took 2621.78 ms. Allocated memory was 104.9 MB in the beginning and 155.2 MB in the end (delta: 50.3 MB). Free memory was 57.9 MB in the beginning and 62.6 MB in the end (delta: -4.6 MB). Peak memory consumption was 48.5 MB. Max. memory is 16.1 GB. [2020-11-29 22:22:36,654 INFO L168 Benchmark]: TraceAbstraction took 257230.14 ms. Allocated memory was 155.2 MB in the beginning and 3.8 GB in the end (delta: 3.6 GB). Free memory was 62.6 MB in the beginning and 2.0 GB in the end (delta: -2.0 GB). Peak memory consumption was 2.5 GB. Max. memory is 16.1 GB. [2020-11-29 22:22:36,654 INFO L168 Benchmark]: Witness Printer took 210.71 ms. Allocated memory is still 3.8 GB. Free memory was 2.0 GB in the beginning and 2.0 GB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-11-29 22:22:36,656 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 83.9 MB. Free memory was 41.4 MB in the beginning and 41.3 MB in the end (delta: 75.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 923.28 ms. Allocated memory is still 104.9 MB. Free memory was 72.9 MB in the beginning and 48.6 MB in the end (delta: 24.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 190.65 ms. Allocated memory is still 104.9 MB. Free memory was 48.6 MB in the beginning and 68.4 MB in the end (delta: -19.8 MB). Peak memory consumption was 19.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 127.86 ms. Allocated memory is still 104.9 MB. Free memory was 68.4 MB in the beginning and 57.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2621.78 ms. Allocated memory was 104.9 MB in the beginning and 155.2 MB in the end (delta: 50.3 MB). Free memory was 57.9 MB in the beginning and 62.6 MB in the end (delta: -4.6 MB). Peak memory consumption was 48.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 257230.14 ms. Allocated memory was 155.2 MB in the beginning and 3.8 GB in the end (delta: 3.6 GB). Free memory was 62.6 MB in the beginning and 2.0 GB in the end (delta: -2.0 GB). Peak memory consumption was 2.5 GB. Max. memory is 16.1 GB. * Witness Printer took 210.71 ms. Allocated memory is still 3.8 GB. Free memory was 2.0 GB in the beginning and 2.0 GB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a29~0_506_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a29~0_506_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a29~0_506_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a29~0_506_25,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1044]: Loop Invariant [2020-11-29 22:22:36,666 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] [2020-11-29 22:22:36,667 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] [2020-11-29 22:22:36,667 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] [2020-11-29 22:22:36,667 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] [2020-11-29 22:22:36,667 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a29~0_506_25,QUANTIFIED] [2020-11-29 22:22:36,671 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] [2020-11-29 22:22:36,671 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] [2020-11-29 22:22:36,671 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] [2020-11-29 22:22:36,671 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] [2020-11-29 22:22:36,672 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a29~0_506_25,QUANTIFIED] Derived loop invariant: (((((((((((((((((((((((((((((306 < a23 && a8 == 15) && 142 <= a29) && a4 == 1) && a23 <= 599997) && a3 == 1) || (((((a25 == 11 && a23 <= 312) && a8 == 15) && 99915 <= a29) && a4 == 1) && a3 == 1)) || (((((((a25 <= 10 && 130 <= a29) && a8 == 15) && a29 <= 274) && 142 <= a29) && a4 == 1) && a23 <= 599997) && a3 == 1)) || ((((((((a4 == 0 && 0 <= a23 + 599772) && !(6 == input)) && a8 == 15) && a25 == 12) && !(3 == input)) && a29 <= 220) && a3 == 1) && a23 + 55 <= 0)) || (((((312 <= a23 && a25 <= 10) && a8 == 15) && a4 == 1) && a23 <= 599997) && a3 == 1)) || (((a8 == 15 && a25 == 12) && ((((((a4 == 0 && 0 <= (a29 + -247) / 15) && 130 <= a29) && a8 == 15) && a25 == 12) && a29 <= 274) || ((a29 <= 275 && a4 == 0) && 0 <= (a29 + -260) / 15))) && a3 == 1)) || (((((a25 == 13 && a8 == 15) && a23 <= 262) && a4 == 1) && 261 <= a29) && a3 == 1)) || ((((((((a25 <= 10 && 140 < a29) && 307 <= a23) && 130 <= a29) && a8 == 15) && a29 <= 274) && a29 <= 245) && a4 == 1) && a3 == 1)) || ((((((a25 == 11 && 0 <= (a29 + -247) / 15) && a23 <= 312) && a8 == 15) && a29 <= 274) && a4 == 1) && a3 == 1)) || (((((a25 <= 10 && 0 <= (a29 + -247) / 15) && a8 == 15) && a23 <= 600000) && a4 == 1) && a3 == 1)) || ((((((a25 == 11 && 306 < a23) && 0 <= (a29 + -247) / 15) && a8 == 15) && a23 <= 600000) && a3 == 1) && a4 == 1)) || (((((((a29 <= 275 && a25 == 11) && 0 <= a23 + 599772) && a23 <= 312) && a8 == 15) && 261 <= a29) && a4 == 1) && a3 == 1)) || (((((a25 == 13 && a8 == 15) && a23 + 242 <= 0) && a29 <= 245) && a4 == 1) && a3 == 1)) || ((((((371191 <= a23 && a8 == 15) && 142 <= a29) && a23 <= 600000) && a29 <= 245) && a4 == 1) && a3 == 1)) || (((((0 <= a23 + 599772 && a23 <= 312) && a8 == 15) && a25 == 12) && a4 == 1) && a3 == 1)) || ((((((0 <= a23 + 599913 && a4 == 0) && a25 <= 9) && a29 <= 140) && a8 == 15) && a23 + 43 <= 0) && a3 == 1)) || (((((a25 <= 10 && a29 <= 140) && a23 <= 312) && a8 == 15) && a4 == 1) && a3 == 1)) || ((((a25 <= 10 && a8 == 15) && a23 + 43 <= 0) && a4 == 1) && a3 == 1)) || (((((a4 == 0 && a25 <= 9) && a8 == 15) && a23 + 43 <= 0) && (\exists aux_div_aux_mod_v_~a29~0_506_25_36 : int, aux_div_v_~a29~0_506_25 : int :: ((299861 * aux_div_aux_mod_v_~a29~0_506_25_36 + 10250 <= a29 && 299861 * aux_div_aux_mod_v_~a29~0_506_25_36 < 299861) && 0 <= 299861 * aux_div_aux_mod_v_~a29~0_506_25_36) && 140 < 299861 * aux_div_aux_mod_v_~a29~0_506_25_36 + 299861 * aux_div_v_~a29~0_506_25)) && a3 == 1)) || ((((a25 == 9 && a23 <= 138) && a8 == 15) && a4 == 1) && a3 == 1)) || (((((((a23 <= 138 || a29 <= 140) && a25 == 13) && a8 == 15) && a23 <= 262) && a29 <= 220) && a4 == 1) && a3 == 1)) || (((((((307 <= a23 && a8 == 15) && a25 == 12) && 142 <= a29) && a4 == 1) || ((((((312 <= a23 && a25 == 11) && 130 <= a29) && a8 == 15) && a29 <= 274) && 142 <= a29) && a4 == 1)) && a23 <= 600000) && a3 == 1)) || (((((307 <= a23 && a8 == 15) && 13 <= a25) && a4 == 1) && a23 <= 599997) && a3 == 1)) || ((((((((0 <= a23 + 599913 && a4 == 0) && 140 < a29) && 130 <= a29) && a8 == 15) && a25 == 12) && a29 <= 274) && a3 == 1) && a23 + 55 <= 0)) || ((((((((312 <= a23 && a25 == 11) && 140 < a29) && 130 <= a29) && a8 == 15) && a29 <= 274) && a4 == 1) && a3 == 1) && a23 <= 599997)) || ((((((((a25 <= 10 && 0 <= a23 + 599772) && a4 == 0) && a29 <= 140) && a8 == 15) && a23 + 55 <= 0) || ((((a25 == 11 && a4 == 0) && a29 <= 140) && a8 == 15) && a23 + 43 <= 0)) || (((((a25 <= 10 && a4 == 0) && 10 <= a25) && a8 == 15) && 0 <= (a29 * -1 + -28690) / 5 + 49) && a23 + 119992 <= 0)) && a3 == 1) - InvariantResult [Line: 32]: Loop Invariant [2020-11-29 22:22:36,675 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] [2020-11-29 22:22:36,675 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] [2020-11-29 22:22:36,675 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] [2020-11-29 22:22:36,676 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] [2020-11-29 22:22:36,676 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a29~0_506_25,QUANTIFIED] [2020-11-29 22:22:36,678 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] [2020-11-29 22:22:36,679 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] [2020-11-29 22:22:36,679 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] [2020-11-29 22:22:36,679 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a29~0_506_25_36,QUANTIFIED] [2020-11-29 22:22:36,679 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a29~0_506_25,QUANTIFIED] Derived loop invariant: (((((((((((((((((((((((((((((306 < a23 && a8 == 15) && 142 <= a29) && a4 == 1) && a23 <= 599997) && a3 == 1) || (((((a25 == 11 && a23 <= 312) && a8 == 15) && 99915 <= a29) && a4 == 1) && a3 == 1)) || (((((((a25 <= 10 && 130 <= a29) && a8 == 15) && a29 <= 274) && 142 <= a29) && a4 == 1) && a23 <= 599997) && a3 == 1)) || ((((((((a4 == 0 && 0 <= a23 + 599772) && !(6 == input)) && a8 == 15) && a25 == 12) && !(3 == input)) && a29 <= 220) && a3 == 1) && a23 + 55 <= 0)) || (((((312 <= a23 && a25 <= 10) && a8 == 15) && a4 == 1) && a23 <= 599997) && a3 == 1)) || (((a8 == 15 && a25 == 12) && ((((((a4 == 0 && 0 <= (a29 + -247) / 15) && 130 <= a29) && a8 == 15) && a25 == 12) && a29 <= 274) || ((a29 <= 275 && a4 == 0) && 0 <= (a29 + -260) / 15))) && a3 == 1)) || (((((a25 == 13 && a8 == 15) && a23 <= 262) && a4 == 1) && 261 <= a29) && a3 == 1)) || ((((((((a25 <= 10 && 140 < a29) && 307 <= a23) && 130 <= a29) && a8 == 15) && a29 <= 274) && a29 <= 245) && a4 == 1) && a3 == 1)) || ((((((a25 == 11 && 0 <= (a29 + -247) / 15) && a23 <= 312) && a8 == 15) && a29 <= 274) && a4 == 1) && a3 == 1)) || (((((a25 <= 10 && 0 <= (a29 + -247) / 15) && a8 == 15) && a23 <= 600000) && a4 == 1) && a3 == 1)) || ((((((a25 == 11 && 306 < a23) && 0 <= (a29 + -247) / 15) && a8 == 15) && a23 <= 600000) && a3 == 1) && a4 == 1)) || (((((((a29 <= 275 && a25 == 11) && 0 <= a23 + 599772) && a23 <= 312) && a8 == 15) && 261 <= a29) && a4 == 1) && a3 == 1)) || (((((a25 == 13 && a8 == 15) && a23 + 242 <= 0) && a29 <= 245) && a4 == 1) && a3 == 1)) || ((((((371191 <= a23 && a8 == 15) && 142 <= a29) && a23 <= 600000) && a29 <= 245) && a4 == 1) && a3 == 1)) || (((((0 <= a23 + 599772 && a23 <= 312) && a8 == 15) && a25 == 12) && a4 == 1) && a3 == 1)) || ((((((0 <= a23 + 599913 && a4 == 0) && a25 <= 9) && a29 <= 140) && a8 == 15) && a23 + 43 <= 0) && a3 == 1)) || (((((a25 <= 10 && a29 <= 140) && a23 <= 312) && a8 == 15) && a4 == 1) && a3 == 1)) || ((((a25 <= 10 && a8 == 15) && a23 + 43 <= 0) && a4 == 1) && a3 == 1)) || (((((a4 == 0 && a25 <= 9) && a8 == 15) && a23 + 43 <= 0) && (\exists aux_div_aux_mod_v_~a29~0_506_25_36 : int, aux_div_v_~a29~0_506_25 : int :: ((299861 * aux_div_aux_mod_v_~a29~0_506_25_36 + 10250 <= a29 && 299861 * aux_div_aux_mod_v_~a29~0_506_25_36 < 299861) && 0 <= 299861 * aux_div_aux_mod_v_~a29~0_506_25_36) && 140 < 299861 * aux_div_aux_mod_v_~a29~0_506_25_36 + 299861 * aux_div_v_~a29~0_506_25)) && a3 == 1)) || ((((a25 == 9 && a23 <= 138) && a8 == 15) && a4 == 1) && a3 == 1)) || (((((((a23 <= 138 || a29 <= 140) && a25 == 13) && a8 == 15) && a23 <= 262) && a29 <= 220) && a4 == 1) && a3 == 1)) || (((((((307 <= a23 && a8 == 15) && a25 == 12) && 142 <= a29) && a4 == 1) || ((((((312 <= a23 && a25 == 11) && 130 <= a29) && a8 == 15) && a29 <= 274) && 142 <= a29) && a4 == 1)) && a23 <= 600000) && a3 == 1)) || (((((307 <= a23 && a8 == 15) && 13 <= a25) && a4 == 1) && a23 <= 599997) && a3 == 1)) || ((((((((0 <= a23 + 599913 && a4 == 0) && 140 < a29) && 130 <= a29) && a8 == 15) && a25 == 12) && a29 <= 274) && a3 == 1) && a23 + 55 <= 0)) || ((((((((312 <= a23 && a25 == 11) && 140 < a29) && 130 <= a29) && a8 == 15) && a29 <= 274) && a4 == 1) && a3 == 1) && a23 <= 599997)) || ((((((((a25 <= 10 && 0 <= a23 + 599772) && a4 == 0) && a29 <= 140) && a8 == 15) && a23 + 55 <= 0) || ((((a25 == 11 && a4 == 0) && a29 <= 140) && a8 == 15) && a23 + 43 <= 0)) || (((((a25 <= 10 && a4 == 0) && 10 <= a25) && a8 == 15) && 0 <= (a29 * -1 + -28690) / 5 + 49) && a23 + 119992 <= 0)) && a3 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 284 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 173.4s, OverallIterations: 37, TraceHistogramMax: 13, AutomataDifference: 108.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 83.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5715 SDtfs, 15787 SDslu, 1501 SDs, 0 SdLazy, 51089 SolverSat, 6869 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 65.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10562 GetRequests, 10363 SyntacticMatches, 10 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 5 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32467occurred in iteration=30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 10.8s AutomataMinimizationTime, 37 MinimizatonAttempts, 123647 StatesRemovedByMinimization, 35 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 161 NumberOfFragments, 1459 HoareAnnotationTreeSize, 3 FomulaSimplifications, 110600691 FormulaSimplificationTreeSizeReduction, 17.4s HoareSimplificationTime, 3 FomulaSimplificationsInter, 13563974 FormulaSimplificationTreeSizeReductionInter, 66.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.4s SsaConstructionTime, 4.9s SatisfiabilityAnalysisTime, 23.0s InterpolantComputationTime, 28324 NumberOfCodeBlocks, 28324 NumberOfCodeBlocksAsserted, 55 NumberOfCheckSat, 28269 ConstructedInterpolants, 149 QuantifiedInterpolants, 87763190 SizeOfPredicates, 21 NumberOfNonLiveVariables, 13915 ConjunctsInSsa, 96 ConjunctsInUnsatCore, 55 InterpolantComputations, 30 PerfectInterpolantSequences, 59303/63793 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...