./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_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_aa234ae0-664b-4483-8da7-af733c5e82ad/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_aa234ae0-664b-4483-8da7-af733c5e82ad/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_aa234ae0-664b-4483-8da7-af733c5e82ad/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_aa234ae0-664b-4483-8da7-af733c5e82ad/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label48.c -s /tmp/vcloud-vcloud-master/worker/run_dir_aa234ae0-664b-4483-8da7-af733c5e82ad/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_aa234ae0-664b-4483-8da7-af733c5e82ad/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 cf43e00e18ad1c61020b5197eeefd3b6814bc992 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:21:56,845 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:21:56,848 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:21:56,903 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:21:56,903 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:21:56,912 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:21:56,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:21:56,924 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:21:56,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:21:56,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:21:56,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:21:56,939 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:21:56,940 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:21:56,944 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:21:56,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:21:56,947 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:21:56,948 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:21:56,949 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:21:56,951 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:21:56,953 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:21:56,955 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:21:56,957 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:21:56,959 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:21:56,960 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:21:56,963 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:21:56,964 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:21:56,964 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:21:56,966 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:21:56,966 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:21:56,968 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:21:56,968 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:21:56,969 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:21:56,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:21:56,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:21:56,972 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:21:56,973 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:21:56,974 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:21:56,974 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:21:56,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:21:56,976 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:21:56,977 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:21:56,978 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_aa234ae0-664b-4483-8da7-af733c5e82ad/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:21:57,021 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:21:57,021 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:21:57,023 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:21:57,023 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:21:57,024 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:21:57,024 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:21:57,024 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:21:57,025 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:21:57,025 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:21:57,025 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:21:57,026 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:21:57,027 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:21:57,027 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:21:57,027 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:21:57,027 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:21:57,028 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:21:57,028 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:21:57,028 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:21:57,029 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:21:57,029 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:21:57,029 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:21:57,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:21:57,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:21:57,030 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:21:57,030 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:21:57,030 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:21:57,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:21:57,031 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:21:57,031 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:21:57,031 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_aa234ae0-664b-4483-8da7-af733c5e82ad/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_aa234ae0-664b-4483-8da7-af733c5e82ad/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf43e00e18ad1c61020b5197eeefd3b6814bc992 [2020-11-30 00:21:57,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:21:57,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:21:57,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:21:57,353 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:21:57,354 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:21:57,355 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_aa234ae0-664b-4483-8da7-af733c5e82ad/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem14_label48.c [2020-11-30 00:21:57,418 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aa234ae0-664b-4483-8da7-af733c5e82ad/bin/uautomizer/data/d009ffdbf/764c640376684192b4d7944833fb1346/FLAGfe8fc554e [2020-11-30 00:21:58,199 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:21:58,200 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_aa234ae0-664b-4483-8da7-af733c5e82ad/sv-benchmarks/c/eca-rers2012/Problem14_label48.c [2020-11-30 00:21:58,224 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aa234ae0-664b-4483-8da7-af733c5e82ad/bin/uautomizer/data/d009ffdbf/764c640376684192b4d7944833fb1346/FLAGfe8fc554e [2020-11-30 00:21:58,345 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_aa234ae0-664b-4483-8da7-af733c5e82ad/bin/uautomizer/data/d009ffdbf/764c640376684192b4d7944833fb1346 [2020-11-30 00:21:58,349 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:21:58,353 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:21:58,359 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:21:58,359 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:21:58,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:21:58,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:21:58" (1/1) ... [2020-11-30 00:21:58,375 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75d724cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:21:58, skipping insertion in model container [2020-11-30 00:21:58,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:21:58" (1/1) ... [2020-11-30 00:21:58,384 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:21:58,472 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:21:59,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:21:59,043 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:21:59,290 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:21:59,307 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:21:59,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:21:59 WrapperNode [2020-11-30 00:21:59,308 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:21:59,310 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:21:59,310 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:21:59,310 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:21:59,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:21:59" (1/1) ... [2020-11-30 00:21:59,356 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:21:59" (1/1) ... [2020-11-30 00:21:59,445 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:21:59,446 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:21:59,446 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:21:59,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:21:59,459 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:21:59" (1/1) ... [2020-11-30 00:21:59,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:21:59" (1/1) ... [2020-11-30 00:21:59,465 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:21:59" (1/1) ... [2020-11-30 00:21:59,470 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:21:59" (1/1) ... [2020-11-30 00:21:59,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:21:59" (1/1) ... [2020-11-30 00:21:59,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:21:59" (1/1) ... [2020-11-30 00:21:59,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:21:59" (1/1) ... [2020-11-30 00:21:59,609 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:21:59,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:21:59,611 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:21:59,611 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:21:59,613 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:21:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa234ae0-664b-4483-8da7-af733c5e82ad/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 [2020-11-30 00:21:59,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:21:59,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:21:59,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:21:59,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:22:01,208 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:22:01,208 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-30 00:22:01,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:22:01 BoogieIcfgContainer [2020-11-30 00:22:01,212 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:22:01,213 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:22:01,214 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:22:01,217 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:22:01,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:21:58" (1/3) ... [2020-11-30 00:22:01,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b7310ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:22:01, skipping insertion in model container [2020-11-30 00:22:01,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:21:59" (2/3) ... [2020-11-30 00:22:01,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b7310ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:22:01, skipping insertion in model container [2020-11-30 00:22:01,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:22:01" (3/3) ... [2020-11-30 00:22:01,220 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label48.c [2020-11-30 00:22:01,231 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:22:01,235 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:22:01,247 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:22:01,288 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:22:01,288 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:22:01,288 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:22:01,289 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:22:01,289 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:22:01,289 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:22:01,289 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:22:01,289 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:22:01,313 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states. [2020-11-30 00:22:01,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-11-30 00:22:01,321 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:01,322 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] [2020-11-30 00:22:01,323 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:01,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:01,329 INFO L82 PathProgramCache]: Analyzing trace with hash 323974986, now seen corresponding path program 1 times [2020-11-30 00:22:01,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:01,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113232721] [2020-11-30 00:22:01,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:01,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:01,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:22:01,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113232721] [2020-11-30 00:22:01,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:22:01,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:22:01,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992505585] [2020-11-30 00:22:01,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:22:01,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:01,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:22:01,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:01,626 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 3 states. [2020-11-30 00:22:02,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:02,920 INFO L93 Difference]: Finished difference Result 670 states and 1201 transitions. [2020-11-30 00:22:02,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:22:02,923 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2020-11-30 00:22:02,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:22:02,951 INFO L225 Difference]: With dead ends: 670 [2020-11-30 00:22:02,952 INFO L226 Difference]: Without dead ends: 360 [2020-11-30 00:22:02,956 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 [2020-11-30 00:22:02,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-11-30 00:22:03,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2020-11-30 00:22:03,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-11-30 00:22:03,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 546 transitions. [2020-11-30 00:22:03,038 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 546 transitions. Word has length 38 [2020-11-30 00:22:03,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:22:03,039 INFO L481 AbstractCegarLoop]: Abstraction has 360 states and 546 transitions. [2020-11-30 00:22:03,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:22:03,039 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 546 transitions. [2020-11-30 00:22:03,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-11-30 00:22:03,044 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:03,044 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:22:03,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:22:03,045 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:03,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:03,046 INFO L82 PathProgramCache]: Analyzing trace with hash 665765641, now seen corresponding path program 1 times [2020-11-30 00:22:03,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:03,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81304590] [2020-11-30 00:22:03,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:03,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:03,251 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:22:03,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81304590] [2020-11-30 00:22:03,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:22:03,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:22:03,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694862301] [2020-11-30 00:22:03,254 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:22:03,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:03,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:22:03,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:03,256 INFO L87 Difference]: Start difference. First operand 360 states and 546 transitions. Second operand 3 states. [2020-11-30 00:22:04,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:04,233 INFO L93 Difference]: Finished difference Result 1074 states and 1633 transitions. [2020-11-30 00:22:04,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:22:04,237 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 113 [2020-11-30 00:22:04,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:22:04,247 INFO L225 Difference]: With dead ends: 1074 [2020-11-30 00:22:04,247 INFO L226 Difference]: Without dead ends: 716 [2020-11-30 00:22:04,250 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 [2020-11-30 00:22:04,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-11-30 00:22:04,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2020-11-30 00:22:04,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2020-11-30 00:22:04,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 968 transitions. [2020-11-30 00:22:04,323 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 968 transitions. Word has length 113 [2020-11-30 00:22:04,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:22:04,325 INFO L481 AbstractCegarLoop]: Abstraction has 716 states and 968 transitions. [2020-11-30 00:22:04,325 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:22:04,325 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 968 transitions. [2020-11-30 00:22:04,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-11-30 00:22:04,331 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:04,332 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:22:04,332 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 00:22:04,332 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:04,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:04,332 INFO L82 PathProgramCache]: Analyzing trace with hash 707995391, now seen corresponding path program 1 times [2020-11-30 00:22:04,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:04,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584500392] [2020-11-30 00:22:04,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:04,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:04,624 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:22:04,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584500392] [2020-11-30 00:22:04,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:22:04,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:22:04,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782916352] [2020-11-30 00:22:04,626 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:22:04,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:04,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:22:04,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:22:04,628 INFO L87 Difference]: Start difference. First operand 716 states and 968 transitions. Second operand 4 states. [2020-11-30 00:22:06,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:06,090 INFO L93 Difference]: Finished difference Result 1964 states and 2570 transitions. [2020-11-30 00:22:06,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:22:06,091 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 117 [2020-11-30 00:22:06,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:22:06,098 INFO L225 Difference]: With dead ends: 1964 [2020-11-30 00:22:06,098 INFO L226 Difference]: Without dead ends: 1250 [2020-11-30 00:22:06,100 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:22:06,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2020-11-30 00:22:06,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2020-11-30 00:22:06,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1250 states. [2020-11-30 00:22:06,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1544 transitions. [2020-11-30 00:22:06,136 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1544 transitions. Word has length 117 [2020-11-30 00:22:06,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:22:06,136 INFO L481 AbstractCegarLoop]: Abstraction has 1250 states and 1544 transitions. [2020-11-30 00:22:06,136 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:22:06,137 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1544 transitions. [2020-11-30 00:22:06,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-11-30 00:22:06,140 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:06,141 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-30 00:22:06,141 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 00:22:06,141 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:06,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:06,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1175302573, now seen corresponding path program 1 times [2020-11-30 00:22:06,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:06,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387819516] [2020-11-30 00:22:06,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:06,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:06,444 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-11-30 00:22:06,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387819516] [2020-11-30 00:22:06,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:22:06,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:22:06,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718345058] [2020-11-30 00:22:06,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:22:06,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:06,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:22:06,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:22:06,447 INFO L87 Difference]: Start difference. First operand 1250 states and 1544 transitions. Second operand 4 states. [2020-11-30 00:22:07,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:07,577 INFO L93 Difference]: Finished difference Result 2705 states and 3353 transitions. [2020-11-30 00:22:07,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:22:07,578 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 197 [2020-11-30 00:22:07,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:22:07,587 INFO L225 Difference]: With dead ends: 2705 [2020-11-30 00:22:07,587 INFO L226 Difference]: Without dead ends: 1606 [2020-11-30 00:22:07,589 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 [2020-11-30 00:22:07,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2020-11-30 00:22:07,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1606. [2020-11-30 00:22:07,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1606 states. [2020-11-30 00:22:07,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1801 transitions. [2020-11-30 00:22:07,636 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1801 transitions. Word has length 197 [2020-11-30 00:22:07,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:22:07,638 INFO L481 AbstractCegarLoop]: Abstraction has 1606 states and 1801 transitions. [2020-11-30 00:22:07,638 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:22:07,638 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1801 transitions. [2020-11-30 00:22:07,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2020-11-30 00:22:07,644 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:07,645 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:22:07,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 00:22:07,645 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:07,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:07,646 INFO L82 PathProgramCache]: Analyzing trace with hash 600061856, now seen corresponding path program 1 times [2020-11-30 00:22:07,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:07,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393161501] [2020-11-30 00:22:07,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:07,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:08,210 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 155 proven. 130 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-11-30 00:22:08,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393161501] [2020-11-30 00:22:08,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154875508] [2020-11-30 00:22:08,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa234ae0-664b-4483-8da7-af733c5e82ad/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 [2020-11-30 00:22:08,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:08,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:22:08,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:22:08,771 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2020-11-30 00:22:08,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:22:08,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-11-30 00:22:08,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386398721] [2020-11-30 00:22:08,773 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:22:08,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:08,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:22:08,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:22:08,775 INFO L87 Difference]: Start difference. First operand 1606 states and 1801 transitions. Second operand 3 states. [2020-11-30 00:22:10,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:10,029 INFO L93 Difference]: Finished difference Result 3388 states and 3901 transitions. [2020-11-30 00:22:10,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:22:10,030 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 324 [2020-11-30 00:22:10,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:22:10,044 INFO L225 Difference]: With dead ends: 3388 [2020-11-30 00:22:10,045 INFO L226 Difference]: Without dead ends: 1962 [2020-11-30 00:22:10,049 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:22:10,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2020-11-30 00:22:10,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784. [2020-11-30 00:22:10,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1784 states. [2020-11-30 00:22:10,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2018 transitions. [2020-11-30 00:22:10,113 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2018 transitions. Word has length 324 [2020-11-30 00:22:10,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:22:10,114 INFO L481 AbstractCegarLoop]: Abstraction has 1784 states and 2018 transitions. [2020-11-30 00:22:10,114 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:22:10,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2018 transitions. [2020-11-30 00:22:10,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2020-11-30 00:22:10,121 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:10,121 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:22:10,334 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:22:10,335 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:10,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:10,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1180726294, now seen corresponding path program 1 times [2020-11-30 00:22:10,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:10,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040069390] [2020-11-30 00:22:10,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:10,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:10,888 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 238 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:22:10,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040069390] [2020-11-30 00:22:10,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292365806] [2020-11-30 00:22:10,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa234ae0-664b-4483-8da7-af733c5e82ad/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 [2020-11-30 00:22:11,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:11,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:22:11,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:22:11,240 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2020-11-30 00:22:11,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:22:11,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-11-30 00:22:11,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548403974] [2020-11-30 00:22:11,243 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:22:11,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:11,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:22:11,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:22:11,252 INFO L87 Difference]: Start difference. First operand 1784 states and 2018 transitions. Second operand 3 states. [2020-11-30 00:22:12,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:12,186 INFO L93 Difference]: Finished difference Result 3744 states and 4250 transitions. [2020-11-30 00:22:12,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:22:12,187 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 328 [2020-11-30 00:22:12,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:22:12,199 INFO L225 Difference]: With dead ends: 3744 [2020-11-30 00:22:12,199 INFO L226 Difference]: Without dead ends: 1962 [2020-11-30 00:22:12,202 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:22:12,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2020-11-30 00:22:12,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1606. [2020-11-30 00:22:12,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1606 states. [2020-11-30 00:22:12,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1799 transitions. [2020-11-30 00:22:12,251 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1799 transitions. Word has length 328 [2020-11-30 00:22:12,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:22:12,257 INFO L481 AbstractCegarLoop]: Abstraction has 1606 states and 1799 transitions. [2020-11-30 00:22:12,257 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:22:12,257 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1799 transitions. [2020-11-30 00:22:12,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2020-11-30 00:22:12,264 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:12,265 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2020-11-30 00:22:12,490 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:22:12,491 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:12,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:12,491 INFO L82 PathProgramCache]: Analyzing trace with hash 670020062, now seen corresponding path program 1 times [2020-11-30 00:22:12,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:12,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706549097] [2020-11-30 00:22:12,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:12,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:12,834 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-11-30 00:22:12,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706549097] [2020-11-30 00:22:12,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:22:12,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:22:12,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255684190] [2020-11-30 00:22:12,838 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:22:12,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:12,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:22:12,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:12,839 INFO L87 Difference]: Start difference. First operand 1606 states and 1799 transitions. Second operand 3 states. [2020-11-30 00:22:13,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:13,935 INFO L93 Difference]: Finished difference Result 3388 states and 3888 transitions. [2020-11-30 00:22:13,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:22:13,936 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 355 [2020-11-30 00:22:13,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:22:13,951 INFO L225 Difference]: With dead ends: 3388 [2020-11-30 00:22:13,951 INFO L226 Difference]: Without dead ends: 2140 [2020-11-30 00:22:13,954 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 [2020-11-30 00:22:13,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2020-11-30 00:22:14,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 1962. [2020-11-30 00:22:14,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2020-11-30 00:22:14,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2208 transitions. [2020-11-30 00:22:14,012 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2208 transitions. Word has length 355 [2020-11-30 00:22:14,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:22:14,013 INFO L481 AbstractCegarLoop]: Abstraction has 1962 states and 2208 transitions. [2020-11-30 00:22:14,013 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:22:14,014 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2208 transitions. [2020-11-30 00:22:14,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2020-11-30 00:22:14,023 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:14,023 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-30 00:22:14,024 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-30 00:22:14,024 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:14,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:14,025 INFO L82 PathProgramCache]: Analyzing trace with hash -2041450695, now seen corresponding path program 1 times [2020-11-30 00:22:14,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:14,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555048612] [2020-11-30 00:22:14,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:14,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:14,614 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 291 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:22:14,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555048612] [2020-11-30 00:22:14,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [450607093] [2020-11-30 00:22:14,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa234ae0-664b-4483-8da7-af733c5e82ad/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 [2020-11-30 00:22:14,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:14,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:22:14,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:22:14,875 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-11-30 00:22:14,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:22:14,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-11-30 00:22:14,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99691525] [2020-11-30 00:22:14,877 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:22:14,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:14,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:22:14,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:22:14,878 INFO L87 Difference]: Start difference. First operand 1962 states and 2208 transitions. Second operand 3 states. [2020-11-30 00:22:15,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:15,734 INFO L93 Difference]: Finished difference Result 2498 states and 2860 transitions. [2020-11-30 00:22:15,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:22:15,735 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 357 [2020-11-30 00:22:15,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:22:15,749 INFO L225 Difference]: With dead ends: 2498 [2020-11-30 00:22:15,749 INFO L226 Difference]: Without dead ends: 2496 [2020-11-30 00:22:15,750 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:22:15,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2020-11-30 00:22:15,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2318. [2020-11-30 00:22:15,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2318 states. [2020-11-30 00:22:15,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2674 transitions. [2020-11-30 00:22:15,803 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2674 transitions. Word has length 357 [2020-11-30 00:22:15,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:22:15,804 INFO L481 AbstractCegarLoop]: Abstraction has 2318 states and 2674 transitions. [2020-11-30 00:22:15,804 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:22:15,804 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2674 transitions. [2020-11-30 00:22:15,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2020-11-30 00:22:15,813 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:15,813 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:22:16,038 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:22:16,039 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:16,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:16,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1175052839, now seen corresponding path program 1 times [2020-11-30 00:22:16,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:16,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364335726] [2020-11-30 00:22:16,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:16,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:16,353 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 317 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-11-30 00:22:16,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364335726] [2020-11-30 00:22:16,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:22:16,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:22:16,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215767452] [2020-11-30 00:22:16,355 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:22:16,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:16,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:22:16,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:16,356 INFO L87 Difference]: Start difference. First operand 2318 states and 2674 transitions. Second operand 3 states. [2020-11-30 00:22:17,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:17,008 INFO L93 Difference]: Finished difference Result 4812 states and 5595 transitions. [2020-11-30 00:22:17,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:22:17,009 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 378 [2020-11-30 00:22:17,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:22:17,024 INFO L225 Difference]: With dead ends: 4812 [2020-11-30 00:22:17,025 INFO L226 Difference]: Without dead ends: 2674 [2020-11-30 00:22:17,028 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 [2020-11-30 00:22:17,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2020-11-30 00:22:17,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2674. [2020-11-30 00:22:17,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2674 states. [2020-11-30 00:22:17,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 3067 transitions. [2020-11-30 00:22:17,085 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 3067 transitions. Word has length 378 [2020-11-30 00:22:17,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:22:17,085 INFO L481 AbstractCegarLoop]: Abstraction has 2674 states and 3067 transitions. [2020-11-30 00:22:17,086 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:22:17,086 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 3067 transitions. [2020-11-30 00:22:17,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2020-11-30 00:22:17,089 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:17,090 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:22:17,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-30 00:22:17,091 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:17,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:17,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1408645404, now seen corresponding path program 1 times [2020-11-30 00:22:17,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:17,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994557588] [2020-11-30 00:22:17,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:17,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:17,674 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2020-11-30 00:22:17,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994557588] [2020-11-30 00:22:17,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1088204305] [2020-11-30 00:22:17,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa234ae0-664b-4483-8da7-af733c5e82ad/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 [2020-11-30 00:22:17,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:17,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:22:17,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:22:18,105 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2020-11-30 00:22:18,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:22:18,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-11-30 00:22:18,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668932649] [2020-11-30 00:22:18,107 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:22:18,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:18,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:22:18,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:22:18,108 INFO L87 Difference]: Start difference. First operand 2674 states and 3067 transitions. Second operand 3 states. [2020-11-30 00:22:18,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:18,786 INFO L93 Difference]: Finished difference Result 3388 states and 3885 transitions. [2020-11-30 00:22:18,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:22:18,786 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 407 [2020-11-30 00:22:18,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:22:18,802 INFO L225 Difference]: With dead ends: 3388 [2020-11-30 00:22:18,803 INFO L226 Difference]: Without dead ends: 3386 [2020-11-30 00:22:18,804 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 406 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:22:18,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2020-11-30 00:22:18,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 2496. [2020-11-30 00:22:18,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2496 states. [2020-11-30 00:22:18,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2815 transitions. [2020-11-30 00:22:18,858 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2815 transitions. Word has length 407 [2020-11-30 00:22:18,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:22:18,859 INFO L481 AbstractCegarLoop]: Abstraction has 2496 states and 2815 transitions. [2020-11-30 00:22:18,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:22:18,859 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2815 transitions. [2020-11-30 00:22:18,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2020-11-30 00:22:18,864 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:18,865 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-11-30 00:22:19,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:22:19,091 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:19,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:19,091 INFO L82 PathProgramCache]: Analyzing trace with hash -464613268, now seen corresponding path program 1 times [2020-11-30 00:22:19,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:19,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705187707] [2020-11-30 00:22:19,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:19,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:19,607 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 698 proven. 0 refuted. 0 times theorem prover too weak. 359 trivial. 0 not checked. [2020-11-30 00:22:19,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705187707] [2020-11-30 00:22:19,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:22:19,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:22:19,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582189396] [2020-11-30 00:22:19,608 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:22:19,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:19,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:22:19,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:22:19,610 INFO L87 Difference]: Start difference. First operand 2496 states and 2815 transitions. Second operand 4 states. [2020-11-30 00:22:20,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:20,481 INFO L93 Difference]: Finished difference Result 4841 states and 5481 transitions. [2020-11-30 00:22:20,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:22:20,484 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 519 [2020-11-30 00:22:20,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:22:20,495 INFO L225 Difference]: With dead ends: 4841 [2020-11-30 00:22:20,496 INFO L226 Difference]: Without dead ends: 2674 [2020-11-30 00:22:20,499 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 [2020-11-30 00:22:20,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2020-11-30 00:22:20,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2496. [2020-11-30 00:22:20,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2496 states. [2020-11-30 00:22:20,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2704 transitions. [2020-11-30 00:22:20,558 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2704 transitions. Word has length 519 [2020-11-30 00:22:20,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:22:20,559 INFO L481 AbstractCegarLoop]: Abstraction has 2496 states and 2704 transitions. [2020-11-30 00:22:20,559 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:22:20,559 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2704 transitions. [2020-11-30 00:22:20,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2020-11-30 00:22:20,566 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:20,566 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:22:20,567 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-30 00:22:20,567 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:20,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:20,568 INFO L82 PathProgramCache]: Analyzing trace with hash -1920602677, now seen corresponding path program 1 times [2020-11-30 00:22:20,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:20,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362434614] [2020-11-30 00:22:20,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:20,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:21,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1136 backedges. 775 proven. 11 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2020-11-30 00:22:21,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362434614] [2020-11-30 00:22:21,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716528553] [2020-11-30 00:22:21,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa234ae0-664b-4483-8da7-af733c5e82ad/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 [2020-11-30 00:22:21,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:21,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 724 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 00:22:21,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:22:22,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1136 backedges. 470 proven. 0 refuted. 0 times theorem prover too weak. 666 trivial. 0 not checked. [2020-11-30 00:22:22,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:22:22,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-11-30 00:22:22,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025073205] [2020-11-30 00:22:22,157 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:22:22,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:22,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:22:22,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:22:22,159 INFO L87 Difference]: Start difference. First operand 2496 states and 2704 transitions. Second operand 3 states. [2020-11-30 00:22:22,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:22,705 INFO L93 Difference]: Finished difference Result 4812 states and 5230 transitions. [2020-11-30 00:22:22,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:22:22,706 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 545 [2020-11-30 00:22:22,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:22:22,715 INFO L225 Difference]: With dead ends: 4812 [2020-11-30 00:22:22,715 INFO L226 Difference]: Without dead ends: 2496 [2020-11-30 00:22:22,717 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 548 GetRequests, 544 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:22:22,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2020-11-30 00:22:22,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2318. [2020-11-30 00:22:22,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2318 states. [2020-11-30 00:22:22,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2441 transitions. [2020-11-30 00:22:22,763 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2441 transitions. Word has length 545 [2020-11-30 00:22:22,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:22:22,764 INFO L481 AbstractCegarLoop]: Abstraction has 2318 states and 2441 transitions. [2020-11-30 00:22:22,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:22:22,764 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2441 transitions. [2020-11-30 00:22:22,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2020-11-30 00:22:22,770 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:22,770 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:22:22,986 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-11-30 00:22:22,986 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:22,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:22,987 INFO L82 PathProgramCache]: Analyzing trace with hash -1737894977, now seen corresponding path program 1 times [2020-11-30 00:22:22,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:22,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358870667] [2020-11-30 00:22:22,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:23,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:23,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 793 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2020-11-30 00:22:23,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358870667] [2020-11-30 00:22:23,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:22:23,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:22:23,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456622137] [2020-11-30 00:22:23,466 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:22:23,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:23,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:22:23,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:23,467 INFO L87 Difference]: Start difference. First operand 2318 states and 2441 transitions. Second operand 3 states. [2020-11-30 00:22:24,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:24,015 INFO L93 Difference]: Finished difference Result 4990 states and 5289 transitions. [2020-11-30 00:22:24,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:22:24,016 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 619 [2020-11-30 00:22:24,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:22:24,031 INFO L225 Difference]: With dead ends: 4990 [2020-11-30 00:22:24,031 INFO L226 Difference]: Without dead ends: 3030 [2020-11-30 00:22:24,033 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 [2020-11-30 00:22:24,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2020-11-30 00:22:24,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 3030. [2020-11-30 00:22:24,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2020-11-30 00:22:24,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3182 transitions. [2020-11-30 00:22:24,092 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3182 transitions. Word has length 619 [2020-11-30 00:22:24,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:22:24,093 INFO L481 AbstractCegarLoop]: Abstraction has 3030 states and 3182 transitions. [2020-11-30 00:22:24,093 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:22:24,093 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3182 transitions. [2020-11-30 00:22:24,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 742 [2020-11-30 00:22:24,123 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:24,125 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:22:24,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-30 00:22:24,126 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:24,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:24,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1081946354, now seen corresponding path program 1 times [2020-11-30 00:22:24,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:24,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343282227] [2020-11-30 00:22:24,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:24,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:25,295 INFO L134 CoverageAnalysis]: Checked inductivity of 1699 backedges. 1163 proven. 68 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2020-11-30 00:22:25,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343282227] [2020-11-30 00:22:25,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306449574] [2020-11-30 00:22:25,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa234ae0-664b-4483-8da7-af733c5e82ad/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 [2020-11-30 00:22:25,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:25,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 945 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 00:22:25,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:22:26,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1699 backedges. 1231 proven. 0 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2020-11-30 00:22:26,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:22:26,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-30 00:22:26,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012665751] [2020-11-30 00:22:26,191 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:22:26,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:26,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:22:26,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:22:26,192 INFO L87 Difference]: Start difference. First operand 3030 states and 3182 transitions. Second operand 4 states. [2020-11-30 00:22:26,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:26,904 INFO L93 Difference]: Finished difference Result 5702 states and 6003 transitions. [2020-11-30 00:22:26,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:22:26,904 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 741 [2020-11-30 00:22:26,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:22:26,917 INFO L225 Difference]: With dead ends: 5702 [2020-11-30 00:22:26,917 INFO L226 Difference]: Without dead ends: 3030 [2020-11-30 00:22:26,920 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 744 GetRequests, 739 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:22:26,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2020-11-30 00:22:26,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 2674. [2020-11-30 00:22:26,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2674 states. [2020-11-30 00:22:26,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 2821 transitions. [2020-11-30 00:22:26,959 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 2821 transitions. Word has length 741 [2020-11-30 00:22:26,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:22:26,960 INFO L481 AbstractCegarLoop]: Abstraction has 2674 states and 2821 transitions. [2020-11-30 00:22:26,960 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:22:26,961 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 2821 transitions. [2020-11-30 00:22:26,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 749 [2020-11-30 00:22:26,967 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:26,968 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:22:27,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:22:27,183 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:27,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:27,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1547984469, now seen corresponding path program 1 times [2020-11-30 00:22:27,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:27,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630833759] [2020-11-30 00:22:27,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:27,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:28,515 INFO L134 CoverageAnalysis]: Checked inductivity of 1713 backedges. 1152 proven. 93 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2020-11-30 00:22:28,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630833759] [2020-11-30 00:22:28,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268676970] [2020-11-30 00:22:28,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa234ae0-664b-4483-8da7-af733c5e82ad/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 [2020-11-30 00:22:28,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:28,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 952 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 00:22:28,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:22:29,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1713 backedges. 1245 proven. 0 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2020-11-30 00:22:29,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:22:29,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-30 00:22:29,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035936810] [2020-11-30 00:22:29,259 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:22:29,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:29,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:22:29,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:22:29,260 INFO L87 Difference]: Start difference. First operand 2674 states and 2821 transitions. Second operand 3 states. [2020-11-30 00:22:29,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:29,873 INFO L93 Difference]: Finished difference Result 5346 states and 5640 transitions. [2020-11-30 00:22:29,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:22:29,873 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 748 [2020-11-30 00:22:29,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:22:29,879 INFO L225 Difference]: With dead ends: 5346 [2020-11-30 00:22:29,879 INFO L226 Difference]: Without dead ends: 2674 [2020-11-30 00:22:29,882 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 751 GetRequests, 747 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:22:29,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2020-11-30 00:22:29,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2674. [2020-11-30 00:22:29,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2674 states. [2020-11-30 00:22:29,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 2807 transitions. [2020-11-30 00:22:29,916 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 2807 transitions. Word has length 748 [2020-11-30 00:22:29,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:22:29,917 INFO L481 AbstractCegarLoop]: Abstraction has 2674 states and 2807 transitions. [2020-11-30 00:22:29,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:22:29,917 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 2807 transitions. [2020-11-30 00:22:29,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 775 [2020-11-30 00:22:29,924 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:29,925 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:22:30,150 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-11-30 00:22:30,151 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:30,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:30,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1329126838, now seen corresponding path program 1 times [2020-11-30 00:22:30,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:30,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357082616] [2020-11-30 00:22:30,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:30,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:31,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1739 backedges. 1234 proven. 155 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2020-11-30 00:22:31,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357082616] [2020-11-30 00:22:31,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101578453] [2020-11-30 00:22:31,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa234ae0-664b-4483-8da7-af733c5e82ad/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 [2020-11-30 00:22:31,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:31,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 981 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 00:22:31,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:22:31,684 INFO L134 CoverageAnalysis]: Checked inductivity of 1739 backedges. 1234 proven. 155 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2020-11-30 00:22:31,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 00:22:31,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-11-30 00:22:31,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811526849] [2020-11-30 00:22:31,685 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:22:31,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:31,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:22:31,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:22:31,686 INFO L87 Difference]: Start difference. First operand 2674 states and 2807 transitions. Second operand 4 states. [2020-11-30 00:22:32,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:32,402 INFO L93 Difference]: Finished difference Result 5880 states and 6196 transitions. [2020-11-30 00:22:32,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:22:32,403 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 774 [2020-11-30 00:22:32,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:22:32,409 INFO L225 Difference]: With dead ends: 5880 [2020-11-30 00:22:32,409 INFO L226 Difference]: Without dead ends: 3208 [2020-11-30 00:22:32,412 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 777 GetRequests, 775 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:22:32,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2020-11-30 00:22:32,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3208. [2020-11-30 00:22:32,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3208 states. [2020-11-30 00:22:32,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3378 transitions. [2020-11-30 00:22:32,456 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3378 transitions. Word has length 774 [2020-11-30 00:22:32,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:22:32,458 INFO L481 AbstractCegarLoop]: Abstraction has 3208 states and 3378 transitions. [2020-11-30 00:22:32,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:22:32,458 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3378 transitions. [2020-11-30 00:22:32,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 847 [2020-11-30 00:22:32,466 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:32,467 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:22:32,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-11-30 00:22:32,687 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:32,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:32,687 INFO L82 PathProgramCache]: Analyzing trace with hash 2061623542, now seen corresponding path program 1 times [2020-11-30 00:22:32,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:32,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138932387] [2020-11-30 00:22:32,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:32,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:33,266 INFO L134 CoverageAnalysis]: Checked inductivity of 2206 backedges. 1415 proven. 0 refuted. 0 times theorem prover too weak. 791 trivial. 0 not checked. [2020-11-30 00:22:33,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138932387] [2020-11-30 00:22:33,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:22:33,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:22:33,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048098645] [2020-11-30 00:22:33,267 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:22:33,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:33,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:22:33,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:33,268 INFO L87 Difference]: Start difference. First operand 3208 states and 3378 transitions. Second operand 3 states. [2020-11-30 00:22:33,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:33,914 INFO L93 Difference]: Finished difference Result 7126 states and 7530 transitions. [2020-11-30 00:22:33,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:22:33,915 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 846 [2020-11-30 00:22:33,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:22:33,922 INFO L225 Difference]: With dead ends: 7126 [2020-11-30 00:22:33,922 INFO L226 Difference]: Without dead ends: 3920 [2020-11-30 00:22:33,926 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 [2020-11-30 00:22:33,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2020-11-30 00:22:33,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3920. [2020-11-30 00:22:33,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3920 states. [2020-11-30 00:22:33,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4129 transitions. [2020-11-30 00:22:33,979 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4129 transitions. Word has length 846 [2020-11-30 00:22:33,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:22:33,980 INFO L481 AbstractCegarLoop]: Abstraction has 3920 states and 4129 transitions. [2020-11-30 00:22:33,980 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:22:33,980 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4129 transitions. [2020-11-30 00:22:33,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 865 [2020-11-30 00:22:33,990 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:33,992 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-30 00:22:33,992 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-30 00:22:33,992 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:33,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:33,993 INFO L82 PathProgramCache]: Analyzing trace with hash -15941437, now seen corresponding path program 1 times [2020-11-30 00:22:33,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:33,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970944680] [2020-11-30 00:22:33,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:34,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:34,767 INFO L134 CoverageAnalysis]: Checked inductivity of 2224 backedges. 1576 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2020-11-30 00:22:34,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970944680] [2020-11-30 00:22:34,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:22:34,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:22:34,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8325720] [2020-11-30 00:22:34,768 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:22:34,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:34,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:22:34,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:34,769 INFO L87 Difference]: Start difference. First operand 3920 states and 4129 transitions. Second operand 3 states. [2020-11-30 00:22:35,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:35,376 INFO L93 Difference]: Finished difference Result 8372 states and 8840 transitions. [2020-11-30 00:22:35,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:22:35,376 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 864 [2020-11-30 00:22:35,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:22:35,384 INFO L225 Difference]: With dead ends: 8372 [2020-11-30 00:22:35,385 INFO L226 Difference]: Without dead ends: 4454 [2020-11-30 00:22:35,389 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 [2020-11-30 00:22:35,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2020-11-30 00:22:35,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 4454. [2020-11-30 00:22:35,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4454 states. [2020-11-30 00:22:35,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4680 transitions. [2020-11-30 00:22:35,467 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4680 transitions. Word has length 864 [2020-11-30 00:22:35,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:22:35,468 INFO L481 AbstractCegarLoop]: Abstraction has 4454 states and 4680 transitions. [2020-11-30 00:22:35,468 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:22:35,468 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4680 transitions. [2020-11-30 00:22:35,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 904 [2020-11-30 00:22:35,485 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:35,486 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, 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, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:22:35,486 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-30 00:22:35,486 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:35,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:35,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1893663550, now seen corresponding path program 1 times [2020-11-30 00:22:35,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:35,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017608340] [2020-11-30 00:22:35,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:35,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:36,304 INFO L134 CoverageAnalysis]: Checked inductivity of 2438 backedges. 1647 proven. 0 refuted. 0 times theorem prover too weak. 791 trivial. 0 not checked. [2020-11-30 00:22:36,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017608340] [2020-11-30 00:22:36,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:22:36,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:22:36,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748383470] [2020-11-30 00:22:36,305 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:22:36,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:36,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:22:36,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:36,306 INFO L87 Difference]: Start difference. First operand 4454 states and 4680 transitions. Second operand 3 states. [2020-11-30 00:22:36,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:36,800 INFO L93 Difference]: Finished difference Result 8728 states and 9178 transitions. [2020-11-30 00:22:36,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:22:36,801 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 903 [2020-11-30 00:22:36,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:22:36,809 INFO L225 Difference]: With dead ends: 8728 [2020-11-30 00:22:36,809 INFO L226 Difference]: Without dead ends: 4276 [2020-11-30 00:22:36,813 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 [2020-11-30 00:22:36,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2020-11-30 00:22:36,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2020-11-30 00:22:36,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4276 states. [2020-11-30 00:22:36,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4466 transitions. [2020-11-30 00:22:36,872 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4466 transitions. Word has length 903 [2020-11-30 00:22:36,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:22:36,872 INFO L481 AbstractCegarLoop]: Abstraction has 4276 states and 4466 transitions. [2020-11-30 00:22:36,873 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:22:36,873 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4466 transitions. [2020-11-30 00:22:36,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 942 [2020-11-30 00:22:36,882 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:36,883 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, 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, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-30 00:22:36,883 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-30 00:22:36,883 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:36,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:36,884 INFO L82 PathProgramCache]: Analyzing trace with hash -1842938513, now seen corresponding path program 1 times [2020-11-30 00:22:36,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:36,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067873148] [2020-11-30 00:22:36,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:37,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:37,800 INFO L134 CoverageAnalysis]: Checked inductivity of 2793 backedges. 1777 proven. 72 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2020-11-30 00:22:37,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067873148] [2020-11-30 00:22:37,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205978916] [2020-11-30 00:22:37,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa234ae0-664b-4483-8da7-af733c5e82ad/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 [2020-11-30 00:22:38,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:38,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 1193 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 00:22:38,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:22:38,128 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 00:22:38,165 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 00:22:38,179 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 00:22:41,681 INFO L134 CoverageAnalysis]: Checked inductivity of 2793 backedges. 1490 proven. 0 refuted. 0 times theorem prover too weak. 1303 trivial. 0 not checked. [2020-11-30 00:22:41,682 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:22:41,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2020-11-30 00:22:41,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672182808] [2020-11-30 00:22:41,683 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:22:41,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:41,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:22:41,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:22:41,684 INFO L87 Difference]: Start difference. First operand 4276 states and 4466 transitions. Second operand 4 states. [2020-11-30 00:22:44,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:44,306 INFO L93 Difference]: Finished difference Result 9796 states and 10220 transitions. [2020-11-30 00:22:44,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:22:44,306 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 941 [2020-11-30 00:22:44,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:22:44,315 INFO L225 Difference]: With dead ends: 9796 [2020-11-30 00:22:44,315 INFO L226 Difference]: Without dead ends: 5522 [2020-11-30 00:22:44,319 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 945 GetRequests, 940 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:22:44,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5522 states. [2020-11-30 00:22:44,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5522 to 4810. [2020-11-30 00:22:44,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4810 states. [2020-11-30 00:22:44,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 5011 transitions. [2020-11-30 00:22:44,391 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 5011 transitions. Word has length 941 [2020-11-30 00:22:44,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:22:44,392 INFO L481 AbstractCegarLoop]: Abstraction has 4810 states and 5011 transitions. [2020-11-30 00:22:44,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:22:44,392 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 5011 transitions. [2020-11-30 00:22:44,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1073 [2020-11-30 00:22:44,404 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:44,405 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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-11-30 00:22:44,630 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:22:44,630 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:44,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:44,631 INFO L82 PathProgramCache]: Analyzing trace with hash 547927890, now seen corresponding path program 1 times [2020-11-30 00:22:44,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:44,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159382902] [2020-11-30 00:22:44,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:44,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:46,633 INFO L134 CoverageAnalysis]: Checked inductivity of 3332 backedges. 1671 proven. 392 refuted. 0 times theorem prover too weak. 1269 trivial. 0 not checked. [2020-11-30 00:22:46,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159382902] [2020-11-30 00:22:46,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577962384] [2020-11-30 00:22:46,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa234ae0-664b-4483-8da7-af733c5e82ad/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 [2020-11-30 00:22:46,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:46,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 1325 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 00:22:46,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:22:47,896 INFO L134 CoverageAnalysis]: Checked inductivity of 3332 backedges. 2063 proven. 0 refuted. 0 times theorem prover too weak. 1269 trivial. 0 not checked. [2020-11-30 00:22:47,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:22:47,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-30 00:22:47,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541899180] [2020-11-30 00:22:47,897 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:22:47,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:47,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:22:47,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:22:47,898 INFO L87 Difference]: Start difference. First operand 4810 states and 5011 transitions. Second operand 4 states. [2020-11-30 00:22:48,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:48,852 INFO L93 Difference]: Finished difference Result 9796 states and 10199 transitions. [2020-11-30 00:22:48,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:22:48,852 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1072 [2020-11-30 00:22:48,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:22:48,860 INFO L225 Difference]: With dead ends: 9796 [2020-11-30 00:22:48,861 INFO L226 Difference]: Without dead ends: 4810 [2020-11-30 00:22:48,865 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1075 GetRequests, 1070 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:22:48,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2020-11-30 00:22:48,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4810. [2020-11-30 00:22:48,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4810 states. [2020-11-30 00:22:48,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 5003 transitions. [2020-11-30 00:22:48,949 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 5003 transitions. Word has length 1072 [2020-11-30 00:22:48,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:22:48,950 INFO L481 AbstractCegarLoop]: Abstraction has 4810 states and 5003 transitions. [2020-11-30 00:22:48,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:22:48,950 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 5003 transitions. [2020-11-30 00:22:48,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1102 [2020-11-30 00:22:48,969 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:48,970 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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 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, 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] [2020-11-30 00:22:49,194 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:22:49,195 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:49,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:49,195 INFO L82 PathProgramCache]: Analyzing trace with hash 93956985, now seen corresponding path program 1 times [2020-11-30 00:22:49,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:49,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827217321] [2020-11-30 00:22:49,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:49,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:50,371 INFO L134 CoverageAnalysis]: Checked inductivity of 3416 backedges. 1629 proven. 0 refuted. 0 times theorem prover too weak. 1787 trivial. 0 not checked. [2020-11-30 00:22:50,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827217321] [2020-11-30 00:22:50,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:22:50,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:22:50,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647364514] [2020-11-30 00:22:50,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:22:50,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:50,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:22:50,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:50,375 INFO L87 Difference]: Start difference. First operand 4810 states and 5003 transitions. Second operand 3 states. [2020-11-30 00:22:51,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:51,002 INFO L93 Difference]: Finished difference Result 9440 states and 9825 transitions. [2020-11-30 00:22:51,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:22:51,002 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1101 [2020-11-30 00:22:51,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:22:51,012 INFO L225 Difference]: With dead ends: 9440 [2020-11-30 00:22:51,012 INFO L226 Difference]: Without dead ends: 4810 [2020-11-30 00:22:51,016 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 [2020-11-30 00:22:51,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2020-11-30 00:22:51,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4810. [2020-11-30 00:22:51,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4810 states. [2020-11-30 00:22:51,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 4959 transitions. [2020-11-30 00:22:51,077 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 4959 transitions. Word has length 1101 [2020-11-30 00:22:51,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:22:51,078 INFO L481 AbstractCegarLoop]: Abstraction has 4810 states and 4959 transitions. [2020-11-30 00:22:51,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:22:51,078 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 4959 transitions. [2020-11-30 00:22:51,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1182 [2020-11-30 00:22:51,092 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:51,093 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 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, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:22:51,093 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-11-30 00:22:51,093 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:51,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:51,094 INFO L82 PathProgramCache]: Analyzing trace with hash -326342209, now seen corresponding path program 1 times [2020-11-30 00:22:51,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:51,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101223748] [2020-11-30 00:22:51,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:51,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:52,352 INFO L134 CoverageAnalysis]: Checked inductivity of 4567 backedges. 1883 proven. 0 refuted. 0 times theorem prover too weak. 2684 trivial. 0 not checked. [2020-11-30 00:22:52,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101223748] [2020-11-30 00:22:52,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:22:52,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:22:52,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273564587] [2020-11-30 00:22:52,354 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:22:52,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:52,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:22:52,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:52,355 INFO L87 Difference]: Start difference. First operand 4810 states and 4959 transitions. Second operand 3 states. [2020-11-30 00:22:52,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:52,884 INFO L93 Difference]: Finished difference Result 9440 states and 9737 transitions. [2020-11-30 00:22:52,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:22:52,885 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1181 [2020-11-30 00:22:52,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:22:52,890 INFO L225 Difference]: With dead ends: 9440 [2020-11-30 00:22:52,891 INFO L226 Difference]: Without dead ends: 4810 [2020-11-30 00:22:52,895 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 [2020-11-30 00:22:52,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2020-11-30 00:22:52,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4810. [2020-11-30 00:22:52,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4810 states. [2020-11-30 00:22:52,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 4954 transitions. [2020-11-30 00:22:52,961 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 4954 transitions. Word has length 1181 [2020-11-30 00:22:52,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:22:52,962 INFO L481 AbstractCegarLoop]: Abstraction has 4810 states and 4954 transitions. [2020-11-30 00:22:52,962 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:22:52,962 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 4954 transitions. [2020-11-30 00:22:52,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1602 [2020-11-30 00:22:52,985 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:52,986 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 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, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:22:52,986 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-11-30 00:22:52,986 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:52,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:52,987 INFO L82 PathProgramCache]: Analyzing trace with hash -1062440710, now seen corresponding path program 1 times [2020-11-30 00:22:52,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:52,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874652675] [2020-11-30 00:22:52,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:53,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:54,857 INFO L134 CoverageAnalysis]: Checked inductivity of 8211 backedges. 1435 proven. 0 refuted. 0 times theorem prover too weak. 6776 trivial. 0 not checked. [2020-11-30 00:22:54,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874652675] [2020-11-30 00:22:54,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:22:54,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:22:54,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856610889] [2020-11-30 00:22:54,858 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:22:54,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:54,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:22:54,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:54,859 INFO L87 Difference]: Start difference. First operand 4810 states and 4954 transitions. Second operand 3 states. [2020-11-30 00:22:55,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:55,323 INFO L93 Difference]: Finished difference Result 9440 states and 9727 transitions. [2020-11-30 00:22:55,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:22:55,323 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1601 [2020-11-30 00:22:55,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:22:55,327 INFO L225 Difference]: With dead ends: 9440 [2020-11-30 00:22:55,327 INFO L226 Difference]: Without dead ends: 4810 [2020-11-30 00:22:55,330 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 [2020-11-30 00:22:55,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2020-11-30 00:22:55,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4810. [2020-11-30 00:22:55,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4810 states. [2020-11-30 00:22:55,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 4947 transitions. [2020-11-30 00:22:55,373 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 4947 transitions. Word has length 1601 [2020-11-30 00:22:55,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:22:55,375 INFO L481 AbstractCegarLoop]: Abstraction has 4810 states and 4947 transitions. [2020-11-30 00:22:55,375 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:22:55,375 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 4947 transitions. [2020-11-30 00:22:55,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1652 [2020-11-30 00:22:55,396 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:22:55,397 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 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, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 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, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:22:55,397 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-11-30 00:22:55,397 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:22:55,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:55,398 INFO L82 PathProgramCache]: Analyzing trace with hash 1322367379, now seen corresponding path program 1 times [2020-11-30 00:22:55,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:55,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180738497] [2020-11-30 00:22:55,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:55,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:58,306 INFO L134 CoverageAnalysis]: Checked inductivity of 8364 backedges. 1706 proven. 1045 refuted. 0 times theorem prover too weak. 5613 trivial. 0 not checked. [2020-11-30 00:22:58,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180738497] [2020-11-30 00:22:58,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538581069] [2020-11-30 00:22:58,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa234ae0-664b-4483-8da7-af733c5e82ad/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 [2020-11-30 00:22:58,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:58,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 2020 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:22:58,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:22:59,980 INFO L134 CoverageAnalysis]: Checked inductivity of 8364 backedges. 2751 proven. 0 refuted. 0 times theorem prover too weak. 5613 trivial. 0 not checked. [2020-11-30 00:22:59,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:22:59,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-30 00:22:59,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683384640] [2020-11-30 00:22:59,982 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:22:59,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:59,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:22:59,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:22:59,982 INFO L87 Difference]: Start difference. First operand 4810 states and 4947 transitions. Second operand 3 states. [2020-11-30 00:23:00,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:23:00,449 INFO L93 Difference]: Finished difference Result 9796 states and 10076 transitions. [2020-11-30 00:23:00,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:23:00,450 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1651 [2020-11-30 00:23:00,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:23:00,453 INFO L225 Difference]: With dead ends: 9796 [2020-11-30 00:23:00,453 INFO L226 Difference]: Without dead ends: 3920 [2020-11-30 00:23:00,457 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1654 GetRequests, 1650 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:23:00,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2020-11-30 00:23:00,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3920. [2020-11-30 00:23:00,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3920 states. [2020-11-30 00:23:00,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4015 transitions. [2020-11-30 00:23:00,495 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4015 transitions. Word has length 1651 [2020-11-30 00:23:00,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:23:00,496 INFO L481 AbstractCegarLoop]: Abstraction has 3920 states and 4015 transitions. [2020-11-30 00:23:00,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:23:00,497 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4015 transitions. [2020-11-30 00:23:00,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1723 [2020-11-30 00:23:00,521 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:23:00,522 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 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, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:23:00,726 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2020-11-30 00:23:00,727 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:23:00,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:23:00,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1942346132, now seen corresponding path program 1 times [2020-11-30 00:23:00,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:23:00,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086287495] [2020-11-30 00:23:00,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:23:00,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:23:04,178 INFO L134 CoverageAnalysis]: Checked inductivity of 9629 backedges. 1553 proven. 0 refuted. 0 times theorem prover too weak. 8076 trivial. 0 not checked. [2020-11-30 00:23:04,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086287495] [2020-11-30 00:23:04,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:23:04,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:23:04,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116507194] [2020-11-30 00:23:04,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 00:23:04,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:23:04,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:23:04,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:23:04,182 INFO L87 Difference]: Start difference. First operand 3920 states and 4015 transitions. Second operand 5 states. [2020-11-30 00:23:05,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:23:05,022 INFO L93 Difference]: Finished difference Result 5181 states and 5324 transitions. [2020-11-30 00:23:05,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:23:05,022 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1722 [2020-11-30 00:23:05,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:23:05,026 INFO L225 Difference]: With dead ends: 5181 [2020-11-30 00:23:05,026 INFO L226 Difference]: Without dead ends: 4988 [2020-11-30 00:23:05,027 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 [2020-11-30 00:23:05,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2020-11-30 00:23:05,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4454. [2020-11-30 00:23:05,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4454 states. [2020-11-30 00:23:05,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4580 transitions. [2020-11-30 00:23:05,064 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4580 transitions. Word has length 1722 [2020-11-30 00:23:05,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:23:05,064 INFO L481 AbstractCegarLoop]: Abstraction has 4454 states and 4580 transitions. [2020-11-30 00:23:05,064 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 00:23:05,065 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4580 transitions. [2020-11-30 00:23:05,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1728 [2020-11-30 00:23:05,085 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:23:05,086 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 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, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:23:05,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-11-30 00:23:05,086 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:23:05,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:23:05,087 INFO L82 PathProgramCache]: Analyzing trace with hash -583038648, now seen corresponding path program 1 times [2020-11-30 00:23:05,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:23:05,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438730848] [2020-11-30 00:23:05,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:23:05,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:23:08,787 INFO L134 CoverageAnalysis]: Checked inductivity of 9684 backedges. 503 proven. 0 refuted. 0 times theorem prover too weak. 9181 trivial. 0 not checked. [2020-11-30 00:23:08,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438730848] [2020-11-30 00:23:08,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:23:08,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:23:08,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588863206] [2020-11-30 00:23:08,789 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:23:08,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:23:08,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:23:08,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:23:08,790 INFO L87 Difference]: Start difference. First operand 4454 states and 4580 transitions. Second operand 4 states. [2020-11-30 00:23:09,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:23:09,418 INFO L93 Difference]: Finished difference Result 4646 states and 4772 transitions. [2020-11-30 00:23:09,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:23:09,418 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1727 [2020-11-30 00:23:09,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:23:09,421 INFO L225 Difference]: With dead ends: 4646 [2020-11-30 00:23:09,421 INFO L226 Difference]: Without dead ends: 4454 [2020-11-30 00:23:09,422 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 [2020-11-30 00:23:09,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2020-11-30 00:23:09,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 4454. [2020-11-30 00:23:09,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4454 states. [2020-11-30 00:23:09,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4576 transitions. [2020-11-30 00:23:09,466 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4576 transitions. Word has length 1727 [2020-11-30 00:23:09,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:23:09,468 INFO L481 AbstractCegarLoop]: Abstraction has 4454 states and 4576 transitions. [2020-11-30 00:23:09,468 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:23:09,468 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4576 transitions. [2020-11-30 00:23:09,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1728 [2020-11-30 00:23:09,492 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:23:09,493 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 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, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:23:09,493 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-11-30 00:23:09,493 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:23:09,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:23:09,494 INFO L82 PathProgramCache]: Analyzing trace with hash 557381907, now seen corresponding path program 1 times [2020-11-30 00:23:09,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:23:09,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064548645] [2020-11-30 00:23:09,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:23:09,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:23:12,104 INFO L134 CoverageAnalysis]: Checked inductivity of 9651 backedges. 6507 proven. 0 refuted. 0 times theorem prover too weak. 3144 trivial. 0 not checked. [2020-11-30 00:23:12,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064548645] [2020-11-30 00:23:12,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:23:12,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:23:12,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056650300] [2020-11-30 00:23:12,107 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:23:12,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:23:12,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:23:12,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:23:12,108 INFO L87 Difference]: Start difference. First operand 4454 states and 4576 transitions. Second operand 4 states. [2020-11-30 00:23:13,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:23:13,042 INFO L93 Difference]: Finished difference Result 8728 states and 8971 transitions. [2020-11-30 00:23:13,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:23:13,043 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1727 [2020-11-30 00:23:13,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:23:13,047 INFO L225 Difference]: With dead ends: 8728 [2020-11-30 00:23:13,047 INFO L226 Difference]: Without dead ends: 4454 [2020-11-30 00:23:13,049 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 [2020-11-30 00:23:13,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2020-11-30 00:23:13,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 4454. [2020-11-30 00:23:13,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4454 states. [2020-11-30 00:23:13,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4534 transitions. [2020-11-30 00:23:13,107 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4534 transitions. Word has length 1727 [2020-11-30 00:23:13,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:23:13,108 INFO L481 AbstractCegarLoop]: Abstraction has 4454 states and 4534 transitions. [2020-11-30 00:23:13,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:23:13,108 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4534 transitions. [2020-11-30 00:23:13,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2025 [2020-11-30 00:23:13,140 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:23:13,141 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 11, 11, 11, 10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 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, 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] [2020-11-30 00:23:13,141 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-11-30 00:23:13,141 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:23:13,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:23:13,142 INFO L82 PathProgramCache]: Analyzing trace with hash -382046615, now seen corresponding path program 1 times [2020-11-30 00:23:13,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:23:13,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563108877] [2020-11-30 00:23:13,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:23:13,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:23:15,834 INFO L134 CoverageAnalysis]: Checked inductivity of 13033 backedges. 1789 proven. 0 refuted. 0 times theorem prover too weak. 11244 trivial. 0 not checked. [2020-11-30 00:23:15,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563108877] [2020-11-30 00:23:15,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:23:15,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:23:15,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312908510] [2020-11-30 00:23:15,835 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:23:15,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:23:15,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:23:15,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:23:15,836 INFO L87 Difference]: Start difference. First operand 4454 states and 4534 transitions. Second operand 4 states. [2020-11-30 00:23:16,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:23:16,444 INFO L93 Difference]: Finished difference Result 4467 states and 4547 transitions. [2020-11-30 00:23:16,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:23:16,445 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 2024 [2020-11-30 00:23:16,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:23:16,446 INFO L225 Difference]: With dead ends: 4467 [2020-11-30 00:23:16,446 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 00:23:16,447 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 [2020-11-30 00:23:16,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 00:23:16,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 00:23:16,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 00:23:16,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 00:23:16,448 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2024 [2020-11-30 00:23:16,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:23:16,448 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:23:16,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:23:16,449 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:23:16,449 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:23:16,449 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-11-30 00:23:16,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 00:23:16,607 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 113 [2020-11-30 00:23:17,470 WARN L193 SmtUtils]: Spent 762.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 75 [2020-11-30 00:23:18,126 WARN L193 SmtUtils]: Spent 654.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 75 [2020-11-30 00:23:18,130 INFO L274 CegarLoopResult]: For program point L762(lines 762 880) no Hoare annotation was computed. [2020-11-30 00:23:18,130 INFO L274 CegarLoopResult]: For program point L895(line 895) no Hoare annotation was computed. [2020-11-30 00:23:18,130 INFO L274 CegarLoopResult]: For program point L829(lines 829 880) no Hoare annotation was computed. [2020-11-30 00:23:18,130 INFO L274 CegarLoopResult]: For program point L631(lines 631 880) no Hoare annotation was computed. [2020-11-30 00:23:18,130 INFO L274 CegarLoopResult]: For program point L565(lines 565 880) no Hoare annotation was computed. [2020-11-30 00:23:18,130 INFO L274 CegarLoopResult]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,130 INFO L274 CegarLoopResult]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,131 INFO L274 CegarLoopResult]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,131 INFO L274 CegarLoopResult]: For program point L698(lines 698 880) no Hoare annotation was computed. [2020-11-30 00:23:18,131 INFO L274 CegarLoopResult]: For program point L500(lines 500 880) no Hoare annotation was computed. [2020-11-30 00:23:18,131 INFO L274 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-11-30 00:23:18,131 INFO L274 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-11-30 00:23:18,131 INFO L274 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-11-30 00:23:18,131 INFO L274 CegarLoopResult]: For program point L369(lines 369 880) no Hoare annotation was computed. [2020-11-30 00:23:18,131 INFO L274 CegarLoopResult]: For program point L303(lines 303 880) no Hoare annotation was computed. [2020-11-30 00:23:18,131 INFO L274 CegarLoopResult]: For program point L436(lines 436 880) no Hoare annotation was computed. [2020-11-30 00:23:18,131 INFO L274 CegarLoopResult]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,131 INFO L274 CegarLoopResult]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,131 INFO L274 CegarLoopResult]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,131 INFO L274 CegarLoopResult]: For program point L239(lines 239 880) no Hoare annotation was computed. [2020-11-30 00:23:18,131 INFO L274 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-11-30 00:23:18,131 INFO L274 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-11-30 00:23:18,131 INFO L274 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-11-30 00:23:18,132 INFO L274 CegarLoopResult]: For program point L768(lines 768 880) no Hoare annotation was computed. [2020-11-30 00:23:18,132 INFO L274 CegarLoopResult]: For program point L636(lines 636 880) no Hoare annotation was computed. [2020-11-30 00:23:18,132 INFO L274 CegarLoopResult]: For program point L835(lines 835 880) no Hoare annotation was computed. [2020-11-30 00:23:18,132 INFO L274 CegarLoopResult]: For program point L571(lines 571 880) no Hoare annotation was computed. [2020-11-30 00:23:18,132 INFO L274 CegarLoopResult]: For program point L505(lines 505 880) no Hoare annotation was computed. [2020-11-30 00:23:18,132 INFO L274 CegarLoopResult]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,132 INFO L274 CegarLoopResult]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,132 INFO L274 CegarLoopResult]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,132 INFO L274 CegarLoopResult]: For program point L704(lines 704 880) no Hoare annotation was computed. [2020-11-30 00:23:18,132 INFO L274 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-11-30 00:23:18,132 INFO L274 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-11-30 00:23:18,132 INFO L274 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-11-30 00:23:18,132 INFO L274 CegarLoopResult]: For program point L309(lines 309 880) no Hoare annotation was computed. [2020-11-30 00:23:18,132 INFO L274 CegarLoopResult]: For program point L442(lines 442 880) no Hoare annotation was computed. [2020-11-30 00:23:18,132 INFO L274 CegarLoopResult]: For program point L376(lines 376 880) no Hoare annotation was computed. [2020-11-30 00:23:18,132 INFO L274 CegarLoopResult]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,132 INFO L274 CegarLoopResult]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,132 INFO L274 CegarLoopResult]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,132 INFO L274 CegarLoopResult]: For program point L245(lines 245 880) no Hoare annotation was computed. [2020-11-30 00:23:18,132 INFO L274 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-11-30 00:23:18,132 INFO L274 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-11-30 00:23:18,133 INFO L274 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-11-30 00:23:18,133 INFO L274 CegarLoopResult]: For program point L774(lines 774 880) no Hoare annotation was computed. [2020-11-30 00:23:18,133 INFO L274 CegarLoopResult]: For program point L642(lines 642 880) no Hoare annotation was computed. [2020-11-30 00:23:18,133 INFO L274 CegarLoopResult]: For program point L510(lines 510 880) no Hoare annotation was computed. [2020-11-30 00:23:18,133 INFO L274 CegarLoopResult]: For program point L841(lines 841 880) no Hoare annotation was computed. [2020-11-30 00:23:18,133 INFO L274 CegarLoopResult]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,133 INFO L274 CegarLoopResult]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,133 INFO L274 CegarLoopResult]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,133 INFO L274 CegarLoopResult]: For program point L710(lines 710 880) no Hoare annotation was computed. [2020-11-30 00:23:18,133 INFO L274 CegarLoopResult]: For program point L578(lines 578 880) no Hoare annotation was computed. [2020-11-30 00:23:18,133 INFO L274 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-11-30 00:23:18,133 INFO L274 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-11-30 00:23:18,133 INFO L274 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-11-30 00:23:18,133 INFO L274 CegarLoopResult]: For program point L315(lines 315 880) no Hoare annotation was computed. [2020-11-30 00:23:18,133 INFO L274 CegarLoopResult]: For program point L448(lines 448 880) no Hoare annotation was computed. [2020-11-30 00:23:18,133 INFO L274 CegarLoopResult]: For program point L382(lines 382 880) no Hoare annotation was computed. [2020-11-30 00:23:18,134 INFO L274 CegarLoopResult]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,134 INFO L274 CegarLoopResult]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,134 INFO L274 CegarLoopResult]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,134 INFO L274 CegarLoopResult]: For program point L251(lines 251 880) no Hoare annotation was computed. [2020-11-30 00:23:18,134 INFO L274 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-11-30 00:23:18,134 INFO L274 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-11-30 00:23:18,134 INFO L274 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-11-30 00:23:18,134 INFO L274 CegarLoopResult]: For program point L648(lines 648 880) no Hoare annotation was computed. [2020-11-30 00:23:18,134 INFO L274 CegarLoopResult]: For program point L516(lines 516 880) no Hoare annotation was computed. [2020-11-30 00:23:18,134 INFO L274 CegarLoopResult]: For program point L847(lines 847 880) no Hoare annotation was computed. [2020-11-30 00:23:18,134 INFO L274 CegarLoopResult]: For program point L781(lines 781 880) no Hoare annotation was computed. [2020-11-30 00:23:18,134 INFO L274 CegarLoopResult]: For program point L583(lines 583 880) no Hoare annotation was computed. [2020-11-30 00:23:18,134 INFO L274 CegarLoopResult]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,134 INFO L274 CegarLoopResult]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,134 INFO L274 CegarLoopResult]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,135 INFO L274 CegarLoopResult]: For program point L716(lines 716 880) no Hoare annotation was computed. [2020-11-30 00:23:18,135 INFO L274 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-11-30 00:23:18,135 INFO L274 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-11-30 00:23:18,135 INFO L274 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-11-30 00:23:18,135 INFO L274 CegarLoopResult]: For program point L321(lines 321 880) no Hoare annotation was computed. [2020-11-30 00:23:18,135 INFO L274 CegarLoopResult]: For program point L454(lines 454 880) no Hoare annotation was computed. [2020-11-30 00:23:18,135 INFO L274 CegarLoopResult]: For program point L388(lines 388 880) no Hoare annotation was computed. [2020-11-30 00:23:18,135 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 00:23:18,135 INFO L274 CegarLoopResult]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,135 INFO L274 CegarLoopResult]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,135 INFO L274 CegarLoopResult]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,135 INFO L274 CegarLoopResult]: For program point L257(lines 257 880) no Hoare annotation was computed. [2020-11-30 00:23:18,135 INFO L274 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-11-30 00:23:18,136 INFO L274 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-11-30 00:23:18,136 INFO L274 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-11-30 00:23:18,136 INFO L274 CegarLoopResult]: For program point L852(lines 852 880) no Hoare annotation was computed. [2020-11-30 00:23:18,136 INFO L274 CegarLoopResult]: For program point L654(lines 654 880) no Hoare annotation was computed. [2020-11-30 00:23:18,136 INFO L274 CegarLoopResult]: For program point L522(lines 522 880) no Hoare annotation was computed. [2020-11-30 00:23:18,136 INFO L274 CegarLoopResult]: For program point L787(lines 787 880) no Hoare annotation was computed. [2020-11-30 00:23:18,136 INFO L274 CegarLoopResult]: For program point L589(lines 589 880) no Hoare annotation was computed. [2020-11-30 00:23:18,136 INFO L274 CegarLoopResult]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,136 INFO L274 CegarLoopResult]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,137 INFO L274 CegarLoopResult]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,137 INFO L274 CegarLoopResult]: For program point L722(lines 722 880) no Hoare annotation was computed. [2020-11-30 00:23:18,137 INFO L274 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-11-30 00:23:18,137 INFO L274 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-11-30 00:23:18,137 INFO L274 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-11-30 00:23:18,137 INFO L274 CegarLoopResult]: For program point L459(lines 459 880) no Hoare annotation was computed. [2020-11-30 00:23:18,137 INFO L274 CegarLoopResult]: For program point L327(lines 327 880) no Hoare annotation was computed. [2020-11-30 00:23:18,137 INFO L274 CegarLoopResult]: For program point L394(lines 394 880) no Hoare annotation was computed. [2020-11-30 00:23:18,138 INFO L274 CegarLoopResult]: For program point L262(lines 262 880) no Hoare annotation was computed. [2020-11-30 00:23:18,138 INFO L274 CegarLoopResult]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,138 INFO L274 CegarLoopResult]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,138 INFO L274 CegarLoopResult]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,138 INFO L274 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-11-30 00:23:18,138 INFO L274 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-11-30 00:23:18,138 INFO L274 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-11-30 00:23:18,138 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 00:23:18,138 INFO L274 CegarLoopResult]: For program point L858(lines 858 880) no Hoare annotation was computed. [2020-11-30 00:23:18,139 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 00:23:18,139 INFO L274 CegarLoopResult]: For program point L660(lines 660 880) no Hoare annotation was computed. [2020-11-30 00:23:18,139 INFO L274 CegarLoopResult]: For program point L528(lines 528 880) no Hoare annotation was computed. [2020-11-30 00:23:18,139 INFO L274 CegarLoopResult]: For program point L793(lines 793 880) no Hoare annotation was computed. [2020-11-30 00:23:18,139 INFO L274 CegarLoopResult]: For program point L595(lines 595 880) no Hoare annotation was computed. [2020-11-30 00:23:18,139 INFO L274 CegarLoopResult]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,139 INFO L274 CegarLoopResult]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,139 INFO L274 CegarLoopResult]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,140 INFO L274 CegarLoopResult]: For program point L728(lines 728 880) no Hoare annotation was computed. [2020-11-30 00:23:18,140 INFO L274 CegarLoopResult]: For program point L464(lines 464 880) no Hoare annotation was computed. [2020-11-30 00:23:18,140 INFO L274 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-11-30 00:23:18,140 INFO L274 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-11-30 00:23:18,140 INFO L274 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-11-30 00:23:18,140 INFO L274 CegarLoopResult]: For program point L333(lines 333 880) no Hoare annotation was computed. [2020-11-30 00:23:18,140 INFO L274 CegarLoopResult]: For program point L400(lines 400 880) no Hoare annotation was computed. [2020-11-30 00:23:18,140 INFO L274 CegarLoopResult]: For program point L268(lines 268 880) no Hoare annotation was computed. [2020-11-30 00:23:18,140 INFO L274 CegarLoopResult]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,141 INFO L274 CegarLoopResult]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,141 INFO L274 CegarLoopResult]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,141 INFO L274 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-11-30 00:23:18,141 INFO L274 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2020-11-30 00:23:18,141 INFO L274 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-11-30 00:23:18,141 INFO L274 CegarLoopResult]: For program point L864(lines 864 880) no Hoare annotation was computed. [2020-11-30 00:23:18,141 INFO L274 CegarLoopResult]: For program point L666(lines 666 880) no Hoare annotation was computed. [2020-11-30 00:23:18,141 INFO L274 CegarLoopResult]: For program point L534(lines 534 880) no Hoare annotation was computed. [2020-11-30 00:23:18,142 INFO L274 CegarLoopResult]: For program point L799(lines 799 880) no Hoare annotation was computed. [2020-11-30 00:23:18,142 INFO L274 CegarLoopResult]: For program point L601(lines 601 880) no Hoare annotation was computed. [2020-11-30 00:23:18,142 INFO L274 CegarLoopResult]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,142 INFO L274 CegarLoopResult]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,142 INFO L274 CegarLoopResult]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,142 INFO L274 CegarLoopResult]: For program point L734(lines 734 880) no Hoare annotation was computed. [2020-11-30 00:23:18,142 INFO L274 CegarLoopResult]: For program point L470(lines 470 880) no Hoare annotation was computed. [2020-11-30 00:23:18,142 INFO L274 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-11-30 00:23:18,142 INFO L274 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-11-30 00:23:18,143 INFO L274 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-11-30 00:23:18,143 INFO L274 CegarLoopResult]: For program point L339(lines 339 880) no Hoare annotation was computed. [2020-11-30 00:23:18,143 INFO L274 CegarLoopResult]: For program point L406(lines 406 880) no Hoare annotation was computed. [2020-11-30 00:23:18,143 INFO L274 CegarLoopResult]: For program point L274(lines 274 880) no Hoare annotation was computed. [2020-11-30 00:23:18,143 INFO L274 CegarLoopResult]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,143 INFO L274 CegarLoopResult]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,143 INFO L274 CegarLoopResult]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,143 INFO L274 CegarLoopResult]: For program point L869(lines 869 880) no Hoare annotation was computed. [2020-11-30 00:23:18,144 INFO L274 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-11-30 00:23:18,144 INFO L274 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-11-30 00:23:18,144 INFO L274 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-11-30 00:23:18,144 INFO L274 CegarLoopResult]: For program point L672(lines 672 880) no Hoare annotation was computed. [2020-11-30 00:23:18,144 INFO L274 CegarLoopResult]: For program point L540(lines 540 880) no Hoare annotation was computed. [2020-11-30 00:23:18,144 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-30 00:23:18,144 INFO L274 CegarLoopResult]: For program point L805(lines 805 880) no Hoare annotation was computed. [2020-11-30 00:23:18,144 INFO L274 CegarLoopResult]: For program point L607(lines 607 880) no Hoare annotation was computed. [2020-11-30 00:23:18,144 INFO L274 CegarLoopResult]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,145 INFO L274 CegarLoopResult]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,145 INFO L274 CegarLoopResult]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,145 INFO L274 CegarLoopResult]: For program point L740(lines 740 880) no Hoare annotation was computed. [2020-11-30 00:23:18,145 INFO L274 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-11-30 00:23:18,145 INFO L274 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-11-30 00:23:18,145 INFO L274 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-11-30 00:23:18,145 INFO L274 CegarLoopResult]: For program point L477(lines 477 880) no Hoare annotation was computed. [2020-11-30 00:23:18,145 INFO L274 CegarLoopResult]: For program point L345(lines 345 880) no Hoare annotation was computed. [2020-11-30 00:23:18,146 INFO L274 CegarLoopResult]: For program point L279(lines 279 880) no Hoare annotation was computed. [2020-11-30 00:23:18,146 INFO L274 CegarLoopResult]: For program point L412(lines 412 880) no Hoare annotation was computed. [2020-11-30 00:23:18,146 INFO L274 CegarLoopResult]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,146 INFO L274 CegarLoopResult]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,146 INFO L274 CegarLoopResult]: For program point L875(lines 875 880) no Hoare annotation was computed. [2020-11-30 00:23:18,146 INFO L274 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-11-30 00:23:18,146 INFO L274 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-11-30 00:23:18,146 INFO L274 CegarLoopResult]: For program point L678(lines 678 880) no Hoare annotation was computed. [2020-11-30 00:23:18,146 INFO L274 CegarLoopResult]: For program point L546(lines 546 880) no Hoare annotation was computed. [2020-11-30 00:23:18,147 INFO L274 CegarLoopResult]: For program point L811(lines 811 880) no Hoare annotation was computed. [2020-11-30 00:23:18,147 INFO L274 CegarLoopResult]: For program point L745(lines 745 880) no Hoare annotation was computed. [2020-11-30 00:23:18,147 INFO L274 CegarLoopResult]: For program point L613(lines 613 880) no Hoare annotation was computed. [2020-11-30 00:23:18,147 INFO L274 CegarLoopResult]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,147 INFO L274 CegarLoopResult]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,147 INFO L274 CegarLoopResult]: For program point L482(lines 482 880) no Hoare annotation was computed. [2020-11-30 00:23:18,147 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 00:23:18,147 INFO L274 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-11-30 00:23:18,148 INFO L274 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-11-30 00:23:18,148 INFO L274 CegarLoopResult]: For program point L351(lines 351 880) no Hoare annotation was computed. [2020-11-30 00:23:18,148 INFO L274 CegarLoopResult]: For program point L285(lines 285 880) no Hoare annotation was computed. [2020-11-30 00:23:18,148 INFO L274 CegarLoopResult]: For program point L418(lines 418 880) no Hoare annotation was computed. [2020-11-30 00:23:18,148 INFO L274 CegarLoopResult]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,148 INFO L274 CegarLoopResult]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,149 INFO L270 CegarLoopResult]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse0 (= ~a21~0 10)) (.cse4 (<= ~a21~0 6)) (.cse5 (<= ~a15~0 6)) (.cse10 (<= 7 ~a21~0)) (.cse11 (<= ~a12~0 599999)) (.cse2 (<= ~a15~0 7)) (.cse6 (<= ~a21~0 9)) (.cse3 (+ ~a12~0 43)) (.cse1 (= ~a24~0 1)) (.cse9 (<= ~a21~0 8))) (or (and .cse0 (<= (+ ~a12~0 397559) 0) .cse1) (and .cse2 .cse0 (< 80 ~a12~0) .cse1) (and (<= .cse3 0) .cse4 .cse5) (and (<= 9 ~a21~0) .cse1 .cse6 (<= ~a12~0 76)) (and (<= 8 ~a21~0) .cse1 (exists ((aux_div_v_~a12~0_439_31 Int) (aux_div_aux_mod_v_~a12~0_439_31_31 Int)) (let ((.cse8 (* 5 aux_div_aux_mod_v_~a12~0_439_31_31))) (let ((.cse7 (+ (* 5 aux_div_v_~a12~0_439_31) .cse8))) (and (<= .cse7 366413) (<= 0 .cse8) (< .cse8 5) (<= ~a12~0 aux_div_v_~a12~0_439_31) (< 366344 .cse7))))) .cse9) (and (<= (+ ~a12~0 49) 0) .cse1 .cse9) (and (<= ~a21~0 7) .cse10 .cse5) (and (<= ~a12~0 586307) .cse1 .cse4) (and (<= ~a24~0 1) .cse5) (and .cse10 .cse1 (<= 9 ~a15~0) .cse11) (and (<= 8 ~a15~0) .cse1 (<= 10 ~a21~0) .cse11) (and .cse2 .cse1 .cse6) (and (< 0 .cse3) (<= ~a12~0 11) .cse1 .cse9))) [2020-11-30 00:23:18,149 INFO L274 CegarLoopResult]: For program point L551(lines 551 880) no Hoare annotation was computed. [2020-11-30 00:23:18,149 INFO L274 CegarLoopResult]: For program point L221(lines 221 880) no Hoare annotation was computed. [2020-11-30 00:23:18,149 INFO L274 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-11-30 00:23:18,149 INFO L274 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-11-30 00:23:18,149 INFO L274 CegarLoopResult]: For program point L684(lines 684 880) no Hoare annotation was computed. [2020-11-30 00:23:18,149 INFO L274 CegarLoopResult]: For program point L817(lines 817 880) no Hoare annotation was computed. [2020-11-30 00:23:18,150 INFO L274 CegarLoopResult]: For program point L751(lines 751 880) no Hoare annotation was computed. [2020-11-30 00:23:18,150 INFO L274 CegarLoopResult]: For program point L619(lines 619 880) no Hoare annotation was computed. [2020-11-30 00:23:18,150 INFO L274 CegarLoopResult]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,150 INFO L274 CegarLoopResult]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,150 INFO L277 CegarLoopResult]: At program point L884(lines 884 900) the Hoare annotation is: true [2020-11-30 00:23:18,150 INFO L274 CegarLoopResult]: For program point L488(lines 488 880) no Hoare annotation was computed. [2020-11-30 00:23:18,150 INFO L274 CegarLoopResult]: For program point L290(lines 290 880) no Hoare annotation was computed. [2020-11-30 00:23:18,150 INFO L274 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-11-30 00:23:18,151 INFO L274 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-11-30 00:23:18,151 INFO L274 CegarLoopResult]: For program point L687(lines 687 880) no Hoare annotation was computed. [2020-11-30 00:23:18,151 INFO L274 CegarLoopResult]: For program point L357(lines 357 880) no Hoare annotation was computed. [2020-11-30 00:23:18,151 INFO L274 CegarLoopResult]: For program point L424(lines 424 880) no Hoare annotation was computed. [2020-11-30 00:23:18,151 INFO L274 CegarLoopResult]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,151 INFO L274 CegarLoopResult]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,151 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 00:23:18,151 INFO L274 CegarLoopResult]: For program point L557(lines 557 880) no Hoare annotation was computed. [2020-11-30 00:23:18,152 INFO L274 CegarLoopResult]: For program point L227(lines 227 880) no Hoare annotation was computed. [2020-11-30 00:23:18,152 INFO L274 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2020-11-30 00:23:18,152 INFO L274 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-11-30 00:23:18,152 INFO L274 CegarLoopResult]: For program point L757(lines 757 880) no Hoare annotation was computed. [2020-11-30 00:23:18,152 INFO L274 CegarLoopResult]: For program point L625(lines 625 880) no Hoare annotation was computed. [2020-11-30 00:23:18,152 INFO L274 CegarLoopResult]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,152 INFO L274 CegarLoopResult]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,152 INFO L274 CegarLoopResult]: For program point L31(lines 31 33) no Hoare annotation was computed. [2020-11-30 00:23:18,153 INFO L274 CegarLoopResult]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,153 INFO L274 CegarLoopResult]: For program point L824(lines 824 880) no Hoare annotation was computed. [2020-11-30 00:23:18,153 INFO L270 CegarLoopResult]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse0 (= ~a21~0 10)) (.cse4 (<= ~a21~0 6)) (.cse5 (<= ~a15~0 6)) (.cse10 (<= 7 ~a21~0)) (.cse11 (<= ~a12~0 599999)) (.cse2 (<= ~a15~0 7)) (.cse6 (<= ~a21~0 9)) (.cse3 (+ ~a12~0 43)) (.cse1 (= ~a24~0 1)) (.cse9 (<= ~a21~0 8))) (or (and .cse0 (<= (+ ~a12~0 397559) 0) .cse1) (and .cse2 .cse0 (< 80 ~a12~0) .cse1) (and (<= .cse3 0) .cse4 .cse5) (and (<= 9 ~a21~0) .cse1 .cse6 (<= ~a12~0 76)) (and (<= 8 ~a21~0) .cse1 (exists ((aux_div_v_~a12~0_439_31 Int) (aux_div_aux_mod_v_~a12~0_439_31_31 Int)) (let ((.cse8 (* 5 aux_div_aux_mod_v_~a12~0_439_31_31))) (let ((.cse7 (+ (* 5 aux_div_v_~a12~0_439_31) .cse8))) (and (<= .cse7 366413) (<= 0 .cse8) (< .cse8 5) (<= ~a12~0 aux_div_v_~a12~0_439_31) (< 366344 .cse7))))) .cse9) (and (<= (+ ~a12~0 49) 0) .cse1 .cse9) (and (<= ~a21~0 7) .cse10 .cse5) (and (<= ~a12~0 586307) .cse1 .cse4) (and (<= ~a24~0 1) .cse5) (and .cse10 .cse1 (<= 9 ~a15~0) .cse11) (and (<= 8 ~a15~0) .cse1 (<= 10 ~a21~0) .cse11) (and .cse2 .cse1 .cse6) (and (< 0 .cse3) (<= ~a12~0 11) .cse1 .cse9))) [2020-11-30 00:23:18,153 INFO L274 CegarLoopResult]: For program point L494(lines 494 880) no Hoare annotation was computed. [2020-11-30 00:23:18,153 INFO L274 CegarLoopResult]: For program point L296(lines 296 880) no Hoare annotation was computed. [2020-11-30 00:23:18,153 INFO L274 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-11-30 00:23:18,154 INFO L274 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-11-30 00:23:18,154 INFO L274 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-11-30 00:23:18,154 INFO L274 CegarLoopResult]: For program point L693(lines 693 880) no Hoare annotation was computed. [2020-11-30 00:23:18,154 INFO L274 CegarLoopResult]: For program point L363(lines 363 880) no Hoare annotation was computed. [2020-11-30 00:23:18,154 INFO L274 CegarLoopResult]: For program point L562(lines 562 880) no Hoare annotation was computed. [2020-11-30 00:23:18,154 INFO L274 CegarLoopResult]: For program point L430(lines 430 880) no Hoare annotation was computed. [2020-11-30 00:23:18,154 INFO L274 CegarLoopResult]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,154 INFO L274 CegarLoopResult]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,155 INFO L274 CegarLoopResult]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 00:23:18,155 INFO L274 CegarLoopResult]: For program point L233(lines 233 880) no Hoare annotation was computed. [2020-11-30 00:23:18,155 INFO L274 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2020-11-30 00:23:18,155 INFO L274 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-11-30 00:23:18,155 INFO L274 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-11-30 00:23:18,166 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 00:23:18,167 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 00:23:18,168 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 00:23:18,168 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 00:23:18,168 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 00:23:18,168 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 00:23:18,168 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 00:23:18,175 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 00:23:18,176 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 00:23:18,176 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 00:23:18,176 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 00:23:18,176 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 00:23:18,177 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 00:23:18,177 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 00:23:18,179 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 00:23:18,179 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 00:23:18,180 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 00:23:18,180 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 00:23:18,180 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 00:23:18,180 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 00:23:18,180 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 00:23:18,182 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 00:23:18,183 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 00:23:18,183 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 00:23:18,183 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 00:23:18,183 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 00:23:18,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 00:23:18,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 00:23:18,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:23:18 BoogieIcfgContainer [2020-11-30 00:23:18,187 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:23:18,187 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:23:18,188 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:23:18,188 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:23:18,188 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:22:01" (3/4) ... [2020-11-30 00:23:18,191 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:23:18,232 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-30 00:23:18,234 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 00:23:18,235 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:23:18,237 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:23:18,269 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((a21 == 10 && a12 + 397559 <= 0) && a24 == 1) || (((a15 <= 7 && a21 == 10) && 80 < a12) && a24 == 1)) || ((a12 + 43 <= 0 && a21 <= 6) && a15 <= 6)) || (((9 <= a21 && a24 == 1) && a21 <= 9) && a12 <= 76)) || (((8 <= a21 && a24 == 1) && (\exists aux_div_v_~a12~0_439_31 : int, aux_div_aux_mod_v_~a12~0_439_31_31 : int :: (((5 * aux_div_v_~a12~0_439_31 + 5 * aux_div_aux_mod_v_~a12~0_439_31_31 <= 366413 && 0 <= 5 * aux_div_aux_mod_v_~a12~0_439_31_31) && 5 * aux_div_aux_mod_v_~a12~0_439_31_31 < 5) && a12 <= aux_div_v_~a12~0_439_31) && 366344 < 5 * aux_div_v_~a12~0_439_31 + 5 * aux_div_aux_mod_v_~a12~0_439_31_31)) && a21 <= 8)) || ((a12 + 49 <= 0 && a24 == 1) && a21 <= 8)) || ((a21 <= 7 && 7 <= a21) && a15 <= 6)) || ((a12 <= 586307 && a24 == 1) && a21 <= 6)) || (a24 <= 1 && a15 <= 6)) || (((7 <= a21 && a24 == 1) && 9 <= a15) && a12 <= 599999)) || (((8 <= a15 && a24 == 1) && 10 <= a21) && a12 <= 599999)) || ((a15 <= 7 && a24 == 1) && a21 <= 9)) || (((0 < a12 + 43 && a12 <= 11) && a24 == 1) && a21 <= 8) [2020-11-30 00:23:18,276 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((a21 == 10 && a12 + 397559 <= 0) && a24 == 1) || (((a15 <= 7 && a21 == 10) && 80 < a12) && a24 == 1)) || ((a12 + 43 <= 0 && a21 <= 6) && a15 <= 6)) || (((9 <= a21 && a24 == 1) && a21 <= 9) && a12 <= 76)) || (((8 <= a21 && a24 == 1) && (\exists aux_div_v_~a12~0_439_31 : int, aux_div_aux_mod_v_~a12~0_439_31_31 : int :: (((5 * aux_div_v_~a12~0_439_31 + 5 * aux_div_aux_mod_v_~a12~0_439_31_31 <= 366413 && 0 <= 5 * aux_div_aux_mod_v_~a12~0_439_31_31) && 5 * aux_div_aux_mod_v_~a12~0_439_31_31 < 5) && a12 <= aux_div_v_~a12~0_439_31) && 366344 < 5 * aux_div_v_~a12~0_439_31 + 5 * aux_div_aux_mod_v_~a12~0_439_31_31)) && a21 <= 8)) || ((a12 + 49 <= 0 && a24 == 1) && a21 <= 8)) || ((a21 <= 7 && 7 <= a21) && a15 <= 6)) || ((a12 <= 586307 && a24 == 1) && a21 <= 6)) || (a24 <= 1 && a15 <= 6)) || (((7 <= a21 && a24 == 1) && 9 <= a15) && a12 <= 599999)) || (((8 <= a15 && a24 == 1) && 10 <= a21) && a12 <= 599999)) || ((a15 <= 7 && a24 == 1) && a21 <= 9)) || (((0 < a12 + 43 && a12 <= 11) && a24 == 1) && a21 <= 8) [2020-11-30 00:23:18,417 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_aa234ae0-664b-4483-8da7-af733c5e82ad/bin/uautomizer/witness.graphml [2020-11-30 00:23:18,417 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:23:18,419 INFO L168 Benchmark]: Toolchain (without parser) took 80065.12 ms. Allocated memory was 117.4 MB in the beginning and 4.2 GB in the end (delta: 4.1 GB). Free memory was 88.3 MB in the beginning and 2.3 GB in the end (delta: -2.2 GB). Peak memory consumption was 1.9 GB. Max. memory is 16.1 GB. [2020-11-30 00:23:18,419 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 83.9 MB. Free memory was 43.6 MB in the beginning and 43.5 MB in the end (delta: 100.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:23:18,420 INFO L168 Benchmark]: CACSL2BoogieTranslator took 950.26 ms. Allocated memory is still 117.4 MB. Free memory was 88.0 MB in the beginning and 70.4 MB in the end (delta: 17.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:23:18,420 INFO L168 Benchmark]: Boogie Procedure Inliner took 135.63 ms. Allocated memory is still 117.4 MB. Free memory was 70.4 MB in the beginning and 60.9 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:23:18,421 INFO L168 Benchmark]: Boogie Preprocessor took 163.39 ms. Allocated memory was 117.4 MB in the beginning and 169.9 MB in the end (delta: 52.4 MB). Free memory was 60.7 MB in the beginning and 140.0 MB in the end (delta: -79.4 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:23:18,421 INFO L168 Benchmark]: RCFGBuilder took 1601.42 ms. Allocated memory is still 169.9 MB. Free memory was 139.3 MB in the beginning and 131.7 MB in the end (delta: 7.6 MB). Peak memory consumption was 67.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:23:18,422 INFO L168 Benchmark]: TraceAbstraction took 76973.65 ms. Allocated memory was 169.9 MB in the beginning and 4.2 GB in the end (delta: 4.0 GB). Free memory was 130.7 MB in the beginning and 2.3 GB in the end (delta: -2.2 GB). Peak memory consumption was 1.9 GB. Max. memory is 16.1 GB. [2020-11-30 00:23:18,422 INFO L168 Benchmark]: Witness Printer took 230.06 ms. Allocated memory is still 4.2 GB. Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-30 00:23:18,424 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 83.9 MB. Free memory was 43.6 MB in the beginning and 43.5 MB in the end (delta: 100.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 950.26 ms. Allocated memory is still 117.4 MB. Free memory was 88.0 MB in the beginning and 70.4 MB in the end (delta: 17.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 135.63 ms. Allocated memory is still 117.4 MB. Free memory was 70.4 MB in the beginning and 60.9 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 163.39 ms. Allocated memory was 117.4 MB in the beginning and 169.9 MB in the end (delta: 52.4 MB). Free memory was 60.7 MB in the beginning and 140.0 MB in the end (delta: -79.4 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1601.42 ms. Allocated memory is still 169.9 MB. Free memory was 139.3 MB in the beginning and 131.7 MB in the end (delta: 7.6 MB). Peak memory consumption was 67.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 76973.65 ms. Allocated memory was 169.9 MB in the beginning and 4.2 GB in the end (delta: 4.0 GB). Free memory was 130.7 MB in the beginning and 2.3 GB in the end (delta: -2.2 GB). Peak memory consumption was 1.9 GB. Max. memory is 16.1 GB. * Witness Printer took 230.06 ms. Allocated memory is still 4.2 GB. Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 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_v_~a12~0_439_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,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: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant [2020-11-30 00:23:18,436 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 00:23:18,436 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 00:23:18,436 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 00:23:18,436 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 00:23:18,437 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 00:23:18,437 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 00:23:18,437 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 00:23:18,444 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 00:23:18,444 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 00:23:18,444 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 00:23:18,444 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 00:23:18,444 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 00:23:18,445 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 00:23:18,445 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] Derived loop invariant: (((((((((((((a21 == 10 && a12 + 397559 <= 0) && a24 == 1) || (((a15 <= 7 && a21 == 10) && 80 < a12) && a24 == 1)) || ((a12 + 43 <= 0 && a21 <= 6) && a15 <= 6)) || (((9 <= a21 && a24 == 1) && a21 <= 9) && a12 <= 76)) || (((8 <= a21 && a24 == 1) && (\exists aux_div_v_~a12~0_439_31 : int, aux_div_aux_mod_v_~a12~0_439_31_31 : int :: (((5 * aux_div_v_~a12~0_439_31 + 5 * aux_div_aux_mod_v_~a12~0_439_31_31 <= 366413 && 0 <= 5 * aux_div_aux_mod_v_~a12~0_439_31_31) && 5 * aux_div_aux_mod_v_~a12~0_439_31_31 < 5) && a12 <= aux_div_v_~a12~0_439_31) && 366344 < 5 * aux_div_v_~a12~0_439_31 + 5 * aux_div_aux_mod_v_~a12~0_439_31_31)) && a21 <= 8)) || ((a12 + 49 <= 0 && a24 == 1) && a21 <= 8)) || ((a21 <= 7 && 7 <= a21) && a15 <= 6)) || ((a12 <= 586307 && a24 == 1) && a21 <= 6)) || (a24 <= 1 && a15 <= 6)) || (((7 <= a21 && a24 == 1) && 9 <= a15) && a12 <= 599999)) || (((8 <= a15 && a24 == 1) && 10 <= a21) && a12 <= 599999)) || ((a15 <= 7 && a24 == 1) && a21 <= 9)) || (((0 < a12 + 43 && a12 <= 11) && a24 == 1) && a21 <= 8) - InvariantResult [Line: 30]: Loop Invariant [2020-11-30 00:23:18,451 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 00:23:18,452 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 00:23:18,452 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 00:23:18,452 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 00:23:18,452 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 00:23:18,452 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 00:23:18,453 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 00:23:18,456 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 00:23:18,456 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 00:23:18,456 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 00:23:18,456 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 00:23:18,456 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 00:23:18,457 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 00:23:18,457 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] Derived loop invariant: (((((((((((((a21 == 10 && a12 + 397559 <= 0) && a24 == 1) || (((a15 <= 7 && a21 == 10) && 80 < a12) && a24 == 1)) || ((a12 + 43 <= 0 && a21 <= 6) && a15 <= 6)) || (((9 <= a21 && a24 == 1) && a21 <= 9) && a12 <= 76)) || (((8 <= a21 && a24 == 1) && (\exists aux_div_v_~a12~0_439_31 : int, aux_div_aux_mod_v_~a12~0_439_31_31 : int :: (((5 * aux_div_v_~a12~0_439_31 + 5 * aux_div_aux_mod_v_~a12~0_439_31_31 <= 366413 && 0 <= 5 * aux_div_aux_mod_v_~a12~0_439_31_31) && 5 * aux_div_aux_mod_v_~a12~0_439_31_31 < 5) && a12 <= aux_div_v_~a12~0_439_31) && 366344 < 5 * aux_div_v_~a12~0_439_31 + 5 * aux_div_aux_mod_v_~a12~0_439_31_31)) && a21 <= 8)) || ((a12 + 49 <= 0 && a24 == 1) && a21 <= 8)) || ((a21 <= 7 && 7 <= a21) && a15 <= 6)) || ((a12 <= 586307 && a24 == 1) && a21 <= 6)) || (a24 <= 1 && a15 <= 6)) || (((7 <= a21 && a24 == 1) && 9 <= a15) && a12 <= 599999)) || (((8 <= a15 && a24 == 1) && 10 <= a21) && a12 <= 599999)) || ((a15 <= 7 && a24 == 1) && a21 <= 9)) || (((0 < a12 + 43 && a12 <= 11) && a24 == 1) && a21 <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 246 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 75.1s, OverallIterations: 29, TraceHistogramMax: 17, AutomataDifference: 25.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2821 SDtfs, 2780 SDslu, 172 SDs, 0 SdLazy, 15440 SolverSat, 1397 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 18.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7979 GetRequests, 7906 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4810occurred in iteration=20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 29 MinimizatonAttempts, 3738 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 85 NumberOfFragments, 369 HoareAnnotationTreeSize, 3 FomulaSimplifications, 4726 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1916 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.1s SsaConstructionTime, 3.7s SatisfiabilityAnalysisTime, 16.7s InterpolantComputationTime, 31808 NumberOfCodeBlocks, 31808 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 31768 ConstructedInterpolants, 257 QuantifiedInterpolants, 94885781 SizeOfPredicates, 4 NumberOfNonLiveVariables, 10083 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 40 InterpolantComputations, 28 PerfectInterpolantSequences, 110583/113012 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...