./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem03_label42.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem03_label42.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF --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 43b1e2ddb5478e4d8ee38477d15f5851a49b7cf223d0a089a3fdb9014fd7706f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:42:21,805 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:42:21,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:42:21,878 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:42:21,879 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:42:21,884 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:42:21,886 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:42:21,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:42:21,895 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:42:21,902 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:42:21,903 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:42:21,905 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:42:21,906 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:42:21,909 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:42:21,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:42:21,921 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:42:21,924 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:42:21,925 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:42:21,928 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:42:21,938 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:42:21,941 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:42:21,943 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:42:21,947 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:42:21,948 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:42:21,960 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:42:21,960 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:42:21,961 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:42:21,963 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:42:21,964 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:42:21,966 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:42:21,967 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:42:21,968 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:42:21,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:42:21,972 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:42:21,974 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:42:21,975 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:42:21,976 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:42:21,976 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:42:21,976 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:42:21,978 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:42:21,979 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:42:21,980 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 06:42:22,033 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:42:22,033 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:42:22,034 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:42:22,035 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:42:22,043 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:42:22,044 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:42:22,045 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:42:22,045 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:42:22,046 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:42:22,046 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:42:22,048 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 06:42:22,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:42:22,048 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 06:42:22,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:42:22,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:42:22,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:42:22,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:42:22,050 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 06:42:22,050 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:42:22,050 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:42:22,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:42:22,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:42:22,051 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:42:22,052 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:42:22,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:42:22,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:42:22,053 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:42:22,053 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:42:22,053 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:42:22,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 06:42:22,056 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:42:22,056 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:42:22,057 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:42:22,057 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:42:22,057 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_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43b1e2ddb5478e4d8ee38477d15f5851a49b7cf223d0a089a3fdb9014fd7706f [2021-11-20 06:42:22,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:42:22,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:42:22,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:42:22,449 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:42:22,450 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:42:22,452 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/eca-rers2012/Problem03_label42.c [2021-11-20 06:42:22,572 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/data/54a35e370/96c92eeb2caf4da19bddc7825c05b2f0/FLAGdd203db28 [2021-11-20 06:42:23,322 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:42:23,324 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/sv-benchmarks/c/eca-rers2012/Problem03_label42.c [2021-11-20 06:42:23,357 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/data/54a35e370/96c92eeb2caf4da19bddc7825c05b2f0/FLAGdd203db28 [2021-11-20 06:42:23,421 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/data/54a35e370/96c92eeb2caf4da19bddc7825c05b2f0 [2021-11-20 06:42:23,425 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:42:23,428 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:42:23,432 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:42:23,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:42:23,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:42:23,439 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:42:23" (1/1) ... [2021-11-20 06:42:23,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70964e90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:42:23, skipping insertion in model container [2021-11-20 06:42:23,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:42:23" (1/1) ... [2021-11-20 06:42:23,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:42:23,569 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:42:24,440 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/sv-benchmarks/c/eca-rers2012/Problem03_label42.c[60691,60704] [2021-11-20 06:42:24,487 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:42:24,507 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:42:24,873 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/sv-benchmarks/c/eca-rers2012/Problem03_label42.c[60691,60704] [2021-11-20 06:42:24,881 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:42:24,901 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:42:24,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:42:24 WrapperNode [2021-11-20 06:42:24,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:42:24,903 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:42:24,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:42:24,904 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:42:24,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:42:24" (1/1) ... [2021-11-20 06:42:24,963 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:42:24" (1/1) ... [2021-11-20 06:42:25,063 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1771 [2021-11-20 06:42:25,064 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:42:25,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:42:25,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:42:25,065 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:42:25,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:42:24" (1/1) ... [2021-11-20 06:42:25,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:42:24" (1/1) ... [2021-11-20 06:42:25,081 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:42:24" (1/1) ... [2021-11-20 06:42:25,082 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:42:24" (1/1) ... [2021-11-20 06:42:25,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:42:24" (1/1) ... [2021-11-20 06:42:25,164 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:42:24" (1/1) ... [2021-11-20 06:42:25,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:42:24" (1/1) ... [2021-11-20 06:42:25,188 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:42:25,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:42:25,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:42:25,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:42:25,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:42:24" (1/1) ... [2021-11-20 06:42:25,199 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:42:25,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:42:25,233 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:42:25,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:42:25,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:42:25,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 06:42:25,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:42:25,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:42:25,477 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:42:25,493 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:42:27,705 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:42:27,733 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:42:27,733 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 06:42:27,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:42:27 BoogieIcfgContainer [2021-11-20 06:42:27,738 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:42:27,741 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:42:27,741 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:42:27,745 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:42:27,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:42:23" (1/3) ... [2021-11-20 06:42:27,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27dc2a92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:42:27, skipping insertion in model container [2021-11-20 06:42:27,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:42:24" (2/3) ... [2021-11-20 06:42:27,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27dc2a92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:42:27, skipping insertion in model container [2021-11-20 06:42:27,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:42:27" (3/3) ... [2021-11-20 06:42:27,749 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem03_label42.c [2021-11-20 06:42:27,759 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:42:27,759 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 06:42:27,834 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:42:27,843 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 06:42:27,844 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 06:42:27,879 INFO L276 IsEmpty]: Start isEmpty. Operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:27,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-11-20 06:42:27,922 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:42:27,923 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:42:27,924 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:42:27,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:42:27,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1065786898, now seen corresponding path program 1 times [2021-11-20 06:42:27,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:42:27,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084974734] [2021-11-20 06:42:27,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:42:27,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:42:28,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:28,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:42:28,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:42:28,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084974734] [2021-11-20 06:42:28,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084974734] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:42:28,809 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:42:28,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 06:42:28,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190149594] [2021-11-20 06:42:28,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:42:28,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:42:28,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:42:28,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:42:28,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:42:28,849 INFO L87 Difference]: Start difference. First operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:30,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:42:30,162 INFO L93 Difference]: Finished difference Result 833 states and 1474 transitions. [2021-11-20 06:42:30,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:42:30,166 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 196 [2021-11-20 06:42:30,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:42:30,199 INFO L225 Difference]: With dead ends: 833 [2021-11-20 06:42:30,199 INFO L226 Difference]: Without dead ends: 454 [2021-11-20 06:42:30,211 INFO L932 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 [2021-11-20 06:42:30,216 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 95 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:42:30,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 163 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-20 06:42:30,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2021-11-20 06:42:30,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 450. [2021-11-20 06:42:30,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 449 states have (on average 1.55902004454343) internal successors, (700), 449 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:30,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 700 transitions. [2021-11-20 06:42:30,334 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 700 transitions. Word has length 196 [2021-11-20 06:42:30,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:42:30,335 INFO L470 AbstractCegarLoop]: Abstraction has 450 states and 700 transitions. [2021-11-20 06:42:30,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:30,336 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 700 transitions. [2021-11-20 06:42:30,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-11-20 06:42:30,341 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:42:30,349 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:42:30,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 06:42:30,350 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:42:30,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:42:30,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1852788322, now seen corresponding path program 1 times [2021-11-20 06:42:30,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:42:30,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959308058] [2021-11-20 06:42:30,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:42:30,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:42:30,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:30,535 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:42:30,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:42:30,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959308058] [2021-11-20 06:42:30,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959308058] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:42:30,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:42:30,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 06:42:30,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233058313] [2021-11-20 06:42:30,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:42:30,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:42:30,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:42:30,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:42:30,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:42:30,545 INFO L87 Difference]: Start difference. First operand 450 states and 700 transitions. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 2 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:31,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:42:31,606 INFO L93 Difference]: Finished difference Result 1337 states and 2085 transitions. [2021-11-20 06:42:31,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:42:31,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 2 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 202 [2021-11-20 06:42:31,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:42:31,621 INFO L225 Difference]: With dead ends: 1337 [2021-11-20 06:42:31,621 INFO L226 Difference]: Without dead ends: 889 [2021-11-20 06:42:31,630 INFO L932 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 [2021-11-20 06:42:31,633 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 285 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:42:31,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 104 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-20 06:42:31,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2021-11-20 06:42:31,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 885. [2021-11-20 06:42:31,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 885 states, 884 states have (on average 1.5429864253393666) internal successors, (1364), 884 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:31,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1364 transitions. [2021-11-20 06:42:31,717 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1364 transitions. Word has length 202 [2021-11-20 06:42:31,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:42:31,718 INFO L470 AbstractCegarLoop]: Abstraction has 885 states and 1364 transitions. [2021-11-20 06:42:31,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 2 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:31,719 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1364 transitions. [2021-11-20 06:42:31,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-20 06:42:31,724 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:42:31,724 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:42:31,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 06:42:31,725 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:42:31,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:42:31,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1185748617, now seen corresponding path program 1 times [2021-11-20 06:42:31,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:42:31,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884367882] [2021-11-20 06:42:31,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:42:31,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:42:31,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:31,846 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:42:31,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:42:31,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884367882] [2021-11-20 06:42:31,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884367882] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:42:31,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:42:31,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:42:31,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694949374] [2021-11-20 06:42:31,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:42:31,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:42:31,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:42:31,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:42:31,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:42:31,855 INFO L87 Difference]: Start difference. First operand 885 states and 1364 transitions. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:32,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:42:32,851 INFO L93 Difference]: Finished difference Result 2599 states and 4012 transitions. [2021-11-20 06:42:32,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:42:32,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 209 [2021-11-20 06:42:32,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:42:32,864 INFO L225 Difference]: With dead ends: 2599 [2021-11-20 06:42:32,865 INFO L226 Difference]: Without dead ends: 1716 [2021-11-20 06:42:32,867 INFO L932 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 [2021-11-20 06:42:32,876 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 256 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-20 06:42:32,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [256 Valid, 136 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-20 06:42:32,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2021-11-20 06:42:32,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 1714. [2021-11-20 06:42:32,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1714 states, 1713 states have (on average 1.4676007005253942) internal successors, (2514), 1713 states have internal predecessors, (2514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:32,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1714 states to 1714 states and 2514 transitions. [2021-11-20 06:42:32,955 INFO L78 Accepts]: Start accepts. Automaton has 1714 states and 2514 transitions. Word has length 209 [2021-11-20 06:42:32,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:42:32,956 INFO L470 AbstractCegarLoop]: Abstraction has 1714 states and 2514 transitions. [2021-11-20 06:42:32,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:32,957 INFO L276 IsEmpty]: Start isEmpty. Operand 1714 states and 2514 transitions. [2021-11-20 06:42:32,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-20 06:42:32,966 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:42:32,967 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:42:32,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 06:42:32,968 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:42:32,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:42:32,970 INFO L85 PathProgramCache]: Analyzing trace with hash -515189889, now seen corresponding path program 1 times [2021-11-20 06:42:32,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:42:32,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45455880] [2021-11-20 06:42:32,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:42:32,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:42:33,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:33,110 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:42:33,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:42:33,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45455880] [2021-11-20 06:42:33,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45455880] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:42:33,111 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:42:33,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 06:42:33,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430435026] [2021-11-20 06:42:33,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:42:33,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:42:33,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:42:33,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:42:33,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:42:33,115 INFO L87 Difference]: Start difference. First operand 1714 states and 2514 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 2 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:34,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:42:34,189 INFO L93 Difference]: Finished difference Result 5090 states and 7487 transitions. [2021-11-20 06:42:34,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:42:34,190 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 2 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2021-11-20 06:42:34,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:42:34,210 INFO L225 Difference]: With dead ends: 5090 [2021-11-20 06:42:34,210 INFO L226 Difference]: Without dead ends: 3378 [2021-11-20 06:42:34,213 INFO L932 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 [2021-11-20 06:42:34,222 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 247 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:42:34,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 119 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-20 06:42:34,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3378 states. [2021-11-20 06:42:34,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3378 to 3345. [2021-11-20 06:42:34,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3345 states, 3344 states have (on average 1.4342105263157894) internal successors, (4796), 3344 states have internal predecessors, (4796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:34,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3345 states to 3345 states and 4796 transitions. [2021-11-20 06:42:34,322 INFO L78 Accepts]: Start accepts. Automaton has 3345 states and 4796 transitions. Word has length 210 [2021-11-20 06:42:34,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:42:34,323 INFO L470 AbstractCegarLoop]: Abstraction has 3345 states and 4796 transitions. [2021-11-20 06:42:34,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 2 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:34,324 INFO L276 IsEmpty]: Start isEmpty. Operand 3345 states and 4796 transitions. [2021-11-20 06:42:34,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-11-20 06:42:34,334 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:42:34,334 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:42:34,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 06:42:34,335 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:42:34,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:42:34,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1167965794, now seen corresponding path program 1 times [2021-11-20 06:42:34,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:42:34,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185514890] [2021-11-20 06:42:34,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:42:34,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:42:34,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:34,439 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-20 06:42:34,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:42:34,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185514890] [2021-11-20 06:42:34,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185514890] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:42:34,441 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:42:34,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 06:42:34,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833200554] [2021-11-20 06:42:34,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:42:34,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:42:34,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:42:34,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:42:34,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:42:34,445 INFO L87 Difference]: Start difference. First operand 3345 states and 4796 transitions. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 2 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:35,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:42:35,509 INFO L93 Difference]: Finished difference Result 9144 states and 13135 transitions. [2021-11-20 06:42:35,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:42:35,510 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 2 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2021-11-20 06:42:35,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:42:35,550 INFO L225 Difference]: With dead ends: 9144 [2021-11-20 06:42:35,550 INFO L226 Difference]: Without dead ends: 5801 [2021-11-20 06:42:35,558 INFO L932 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 [2021-11-20 06:42:35,559 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 243 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-20 06:42:35,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [243 Valid, 166 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-20 06:42:35,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5801 states. [2021-11-20 06:42:35,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5801 to 5795. [2021-11-20 06:42:35,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5795 states, 5794 states have (on average 1.387124611667242) internal successors, (8037), 5794 states have internal predecessors, (8037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:35,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5795 states to 5795 states and 8037 transitions. [2021-11-20 06:42:35,817 INFO L78 Accepts]: Start accepts. Automaton has 5795 states and 8037 transitions. Word has length 223 [2021-11-20 06:42:35,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:42:35,818 INFO L470 AbstractCegarLoop]: Abstraction has 5795 states and 8037 transitions. [2021-11-20 06:42:35,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 2 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:35,823 INFO L276 IsEmpty]: Start isEmpty. Operand 5795 states and 8037 transitions. [2021-11-20 06:42:35,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-11-20 06:42:35,844 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:42:35,844 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:42:35,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 06:42:35,846 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:42:35,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:42:35,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1965311044, now seen corresponding path program 1 times [2021-11-20 06:42:35,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:42:35,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810677468] [2021-11-20 06:42:35,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:42:35,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:42:35,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:35,977 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-20 06:42:35,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:42:35,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810677468] [2021-11-20 06:42:35,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810677468] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:42:35,978 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:42:35,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:42:35,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660074233] [2021-11-20 06:42:35,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:42:35,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:42:35,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:42:35,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:42:35,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:42:35,981 INFO L87 Difference]: Start difference. First operand 5795 states and 8037 transitions. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:37,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:42:37,211 INFO L93 Difference]: Finished difference Result 14453 states and 19967 transitions. [2021-11-20 06:42:37,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:42:37,212 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 224 [2021-11-20 06:42:37,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:42:37,271 INFO L225 Difference]: With dead ends: 14453 [2021-11-20 06:42:37,271 INFO L226 Difference]: Without dead ends: 8660 [2021-11-20 06:42:37,280 INFO L932 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 [2021-11-20 06:42:37,282 INFO L933 BasicCegarLoop]: 364 mSDtfsCounter, 214 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:42:37,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 385 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-20 06:42:37,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8660 states. [2021-11-20 06:42:37,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8660 to 8637. [2021-11-20 06:42:37,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8637 states, 8636 states have (on average 1.3243399722093563) internal successors, (11437), 8636 states have internal predecessors, (11437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:37,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8637 states to 8637 states and 11437 transitions. [2021-11-20 06:42:37,559 INFO L78 Accepts]: Start accepts. Automaton has 8637 states and 11437 transitions. Word has length 224 [2021-11-20 06:42:37,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:42:37,563 INFO L470 AbstractCegarLoop]: Abstraction has 8637 states and 11437 transitions. [2021-11-20 06:42:37,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:37,564 INFO L276 IsEmpty]: Start isEmpty. Operand 8637 states and 11437 transitions. [2021-11-20 06:42:37,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-11-20 06:42:37,588 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:42:37,588 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:42:37,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 06:42:37,589 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:42:37,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:42:37,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1623070180, now seen corresponding path program 1 times [2021-11-20 06:42:37,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:42:37,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772197420] [2021-11-20 06:42:37,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:42:37,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:42:37,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:37,698 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-20 06:42:37,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:42:37,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772197420] [2021-11-20 06:42:37,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772197420] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:42:37,699 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:42:37,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:42:37,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319646745] [2021-11-20 06:42:37,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:42:37,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:42:37,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:42:37,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:42:37,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:42:37,702 INFO L87 Difference]: Start difference. First operand 8637 states and 11437 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:38,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:42:38,800 INFO L93 Difference]: Finished difference Result 23583 states and 31178 transitions. [2021-11-20 06:42:38,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:42:38,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 237 [2021-11-20 06:42:38,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:42:38,881 INFO L225 Difference]: With dead ends: 23583 [2021-11-20 06:42:38,882 INFO L226 Difference]: Without dead ends: 14948 [2021-11-20 06:42:38,895 INFO L932 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 [2021-11-20 06:42:38,896 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 216 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:42:38,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 407 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-20 06:42:38,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14948 states. [2021-11-20 06:42:39,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14948 to 14535. [2021-11-20 06:42:39,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14535 states, 14534 states have (on average 1.2664097977157012) internal successors, (18406), 14534 states have internal predecessors, (18406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:39,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14535 states to 14535 states and 18406 transitions. [2021-11-20 06:42:39,340 INFO L78 Accepts]: Start accepts. Automaton has 14535 states and 18406 transitions. Word has length 237 [2021-11-20 06:42:39,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:42:39,341 INFO L470 AbstractCegarLoop]: Abstraction has 14535 states and 18406 transitions. [2021-11-20 06:42:39,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:39,342 INFO L276 IsEmpty]: Start isEmpty. Operand 14535 states and 18406 transitions. [2021-11-20 06:42:39,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-11-20 06:42:39,377 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:42:39,378 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:42:39,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 06:42:39,378 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:42:39,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:42:39,380 INFO L85 PathProgramCache]: Analyzing trace with hash 452388191, now seen corresponding path program 1 times [2021-11-20 06:42:39,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:42:39,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315887704] [2021-11-20 06:42:39,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:42:39,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:42:39,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:39,522 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:42:39,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:42:39,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315887704] [2021-11-20 06:42:39,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315887704] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:42:39,523 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:42:39,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:42:39,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349091197] [2021-11-20 06:42:39,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:42:39,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:42:39,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:42:39,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:42:39,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:42:39,526 INFO L87 Difference]: Start difference. First operand 14535 states and 18406 transitions. Second operand has 4 states, 4 states have (on average 60.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:41,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:42:41,453 INFO L93 Difference]: Finished difference Result 28298 states and 35915 transitions. [2021-11-20 06:42:41,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:42:41,455 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 240 [2021-11-20 06:42:41,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:42:41,492 INFO L225 Difference]: With dead ends: 28298 [2021-11-20 06:42:41,493 INFO L226 Difference]: Without dead ends: 14577 [2021-11-20 06:42:41,510 INFO L932 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 [2021-11-20 06:42:41,511 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 410 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1150 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 1150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-20 06:42:41,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [410 Valid, 163 Invalid, 1365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 1150 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-20 06:42:41,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14577 states. [2021-11-20 06:42:41,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14577 to 13926. [2021-11-20 06:42:41,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13926 states, 13925 states have (on average 1.2690843806104128) internal successors, (17672), 13925 states have internal predecessors, (17672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:41,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13926 states to 13926 states and 17672 transitions. [2021-11-20 06:42:41,962 INFO L78 Accepts]: Start accepts. Automaton has 13926 states and 17672 transitions. Word has length 240 [2021-11-20 06:42:41,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:42:41,963 INFO L470 AbstractCegarLoop]: Abstraction has 13926 states and 17672 transitions. [2021-11-20 06:42:41,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:41,964 INFO L276 IsEmpty]: Start isEmpty. Operand 13926 states and 17672 transitions. [2021-11-20 06:42:42,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2021-11-20 06:42:42,050 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:42:42,050 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:42:42,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 06:42:42,052 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:42:42,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:42:42,053 INFO L85 PathProgramCache]: Analyzing trace with hash -7650806, now seen corresponding path program 1 times [2021-11-20 06:42:42,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:42:42,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728167916] [2021-11-20 06:42:42,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:42:42,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:42:42,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:42,186 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 56 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-20 06:42:42,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:42:42,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728167916] [2021-11-20 06:42:42,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728167916] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:42:42,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1042134759] [2021-11-20 06:42:42,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:42:42,188 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:42:42,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:42:42,195 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:42:42,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 06:42:42,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:42,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 06:42:42,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:42:43,500 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-20 06:42:43,500 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:42:43,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1042134759] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:42:43,505 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:42:43,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-11-20 06:42:43,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369925653] [2021-11-20 06:42:43,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:42:43,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:42:43,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:42:43,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:42:43,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:42:43,510 INFO L87 Difference]: Start difference. First operand 13926 states and 17672 transitions. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:44,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:42:44,762 INFO L93 Difference]: Finished difference Result 37395 states and 47512 transitions. [2021-11-20 06:42:44,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:42:44,762 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 247 [2021-11-20 06:42:44,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:42:44,815 INFO L225 Difference]: With dead ends: 37395 [2021-11-20 06:42:44,815 INFO L226 Difference]: Without dead ends: 23471 [2021-11-20 06:42:44,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:42:44,834 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 39 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:42:44,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 417 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-20 06:42:44,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23471 states. [2021-11-20 06:42:45,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23471 to 21843. [2021-11-20 06:42:45,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21843 states, 21842 states have (on average 1.1970057687024998) internal successors, (26145), 21842 states have internal predecessors, (26145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:45,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21843 states to 21843 states and 26145 transitions. [2021-11-20 06:42:45,547 INFO L78 Accepts]: Start accepts. Automaton has 21843 states and 26145 transitions. Word has length 247 [2021-11-20 06:42:45,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:42:45,548 INFO L470 AbstractCegarLoop]: Abstraction has 21843 states and 26145 transitions. [2021-11-20 06:42:45,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:45,549 INFO L276 IsEmpty]: Start isEmpty. Operand 21843 states and 26145 transitions. [2021-11-20 06:42:45,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2021-11-20 06:42:45,621 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:42:45,621 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:42:45,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 06:42:45,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:42:45,848 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:42:45,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:42:45,849 INFO L85 PathProgramCache]: Analyzing trace with hash 760934303, now seen corresponding path program 1 times [2021-11-20 06:42:45,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:42:45,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493840217] [2021-11-20 06:42:45,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:42:45,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:42:45,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:46,016 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-20 06:42:46,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:42:46,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493840217] [2021-11-20 06:42:46,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493840217] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:42:46,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:42:46,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 06:42:46,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196429675] [2021-11-20 06:42:46,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:42:46,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:42:46,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:42:46,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:42:46,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:42:46,024 INFO L87 Difference]: Start difference. First operand 21843 states and 26145 transitions. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 2 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:47,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:42:47,420 INFO L93 Difference]: Finished difference Result 46954 states and 56019 transitions. [2021-11-20 06:42:47,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:42:47,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 2 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 250 [2021-11-20 06:42:47,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:42:47,475 INFO L225 Difference]: With dead ends: 46954 [2021-11-20 06:42:47,475 INFO L226 Difference]: Without dead ends: 26331 [2021-11-20 06:42:47,495 INFO L932 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 [2021-11-20 06:42:47,496 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 186 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:42:47,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 181 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-20 06:42:47,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26331 states. [2021-11-20 06:42:48,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26331 to 25916. [2021-11-20 06:42:48,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25916 states, 25915 states have (on average 1.1864171329345938) internal successors, (30746), 25915 states have internal predecessors, (30746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:48,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25916 states to 25916 states and 30746 transitions. [2021-11-20 06:42:48,263 INFO L78 Accepts]: Start accepts. Automaton has 25916 states and 30746 transitions. Word has length 250 [2021-11-20 06:42:48,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:42:48,264 INFO L470 AbstractCegarLoop]: Abstraction has 25916 states and 30746 transitions. [2021-11-20 06:42:48,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 2 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:48,265 INFO L276 IsEmpty]: Start isEmpty. Operand 25916 states and 30746 transitions. [2021-11-20 06:42:48,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2021-11-20 06:42:48,328 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:42:48,328 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:42:48,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-20 06:42:48,329 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:42:48,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:42:48,330 INFO L85 PathProgramCache]: Analyzing trace with hash 233812618, now seen corresponding path program 1 times [2021-11-20 06:42:48,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:42:48,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088766573] [2021-11-20 06:42:48,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:42:48,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:42:48,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:48,459 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-20 06:42:48,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:42:48,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088766573] [2021-11-20 06:42:48,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088766573] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:42:48,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:42:48,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:42:48,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858158352] [2021-11-20 06:42:48,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:42:48,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:42:48,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:42:48,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:42:48,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:42:48,463 INFO L87 Difference]: Start difference. First operand 25916 states and 30746 transitions. Second operand has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:49,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:42:49,171 INFO L93 Difference]: Finished difference Result 47906 states and 56582 transitions. [2021-11-20 06:42:49,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:42:49,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 257 [2021-11-20 06:42:49,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:42:49,225 INFO L225 Difference]: With dead ends: 47906 [2021-11-20 06:42:49,225 INFO L226 Difference]: Without dead ends: 23616 [2021-11-20 06:42:49,243 INFO L932 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 [2021-11-20 06:42:49,244 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 329 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 06:42:49,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [329 Valid, 31 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 06:42:49,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23616 states. [2021-11-20 06:42:49,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23616 to 23616. [2021-11-20 06:42:49,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23616 states, 23615 states have (on average 1.1614651704425154) internal successors, (27428), 23615 states have internal predecessors, (27428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:49,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23616 states to 23616 states and 27428 transitions. [2021-11-20 06:42:49,992 INFO L78 Accepts]: Start accepts. Automaton has 23616 states and 27428 transitions. Word has length 257 [2021-11-20 06:42:49,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:42:49,992 INFO L470 AbstractCegarLoop]: Abstraction has 23616 states and 27428 transitions. [2021-11-20 06:42:49,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:49,993 INFO L276 IsEmpty]: Start isEmpty. Operand 23616 states and 27428 transitions. [2021-11-20 06:42:50,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2021-11-20 06:42:50,025 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:42:50,025 INFO L514 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:42:50,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-20 06:42:50,026 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:42:50,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:42:50,027 INFO L85 PathProgramCache]: Analyzing trace with hash 638284128, now seen corresponding path program 1 times [2021-11-20 06:42:50,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:42:50,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079014068] [2021-11-20 06:42:50,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:42:50,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:42:50,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:50,146 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-20 06:42:50,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:42:50,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079014068] [2021-11-20 06:42:50,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079014068] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:42:50,147 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:42:50,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 06:42:50,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537255068] [2021-11-20 06:42:50,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:42:50,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:42:50,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:42:50,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:42:50,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:42:50,150 INFO L87 Difference]: Start difference. First operand 23616 states and 27428 transitions. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 2 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:51,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:42:51,505 INFO L93 Difference]: Finished difference Result 55171 states and 63944 transitions. [2021-11-20 06:42:51,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:42:51,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 2 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 285 [2021-11-20 06:42:51,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:42:51,572 INFO L225 Difference]: With dead ends: 55171 [2021-11-20 06:42:51,573 INFO L226 Difference]: Without dead ends: 33181 [2021-11-20 06:42:51,589 INFO L932 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 [2021-11-20 06:42:51,589 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 217 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:42:51,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [217 Valid, 119 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-20 06:42:51,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33181 states. [2021-11-20 06:42:52,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33181 to 33177. [2021-11-20 06:42:52,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33177 states, 33176 states have (on average 1.1559561128526645) internal successors, (38350), 33176 states have internal predecessors, (38350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:52,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33177 states to 33177 states and 38350 transitions. [2021-11-20 06:42:52,384 INFO L78 Accepts]: Start accepts. Automaton has 33177 states and 38350 transitions. Word has length 285 [2021-11-20 06:42:52,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:42:52,385 INFO L470 AbstractCegarLoop]: Abstraction has 33177 states and 38350 transitions. [2021-11-20 06:42:52,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 2 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:52,385 INFO L276 IsEmpty]: Start isEmpty. Operand 33177 states and 38350 transitions. [2021-11-20 06:42:52,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2021-11-20 06:42:52,441 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:42:52,441 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:42:52,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-20 06:42:52,442 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:42:52,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:42:52,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1028161034, now seen corresponding path program 1 times [2021-11-20 06:42:52,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:42:52,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615580574] [2021-11-20 06:42:52,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:42:52,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:42:52,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:52,607 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:42:52,608 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:42:52,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615580574] [2021-11-20 06:42:52,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615580574] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:42:52,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:42:52,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 06:42:52,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596512768] [2021-11-20 06:42:52,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:42:52,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:42:52,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:42:52,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:42:52,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:42:52,611 INFO L87 Difference]: Start difference. First operand 33177 states and 38350 transitions. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 2 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:53,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:42:53,807 INFO L93 Difference]: Finished difference Result 69797 states and 81566 transitions. [2021-11-20 06:42:53,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:42:53,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 2 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 286 [2021-11-20 06:42:53,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:42:53,863 INFO L225 Difference]: With dead ends: 69797 [2021-11-20 06:42:53,864 INFO L226 Difference]: Without dead ends: 36825 [2021-11-20 06:42:53,888 INFO L932 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 [2021-11-20 06:42:53,889 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 127 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-20 06:42:53,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 149 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-20 06:42:53,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36825 states. [2021-11-20 06:42:54,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36825 to 32968. [2021-11-20 06:42:54,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32968 states, 32967 states have (on average 1.1297964631297965) internal successors, (37246), 32967 states have internal predecessors, (37246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:54,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32968 states to 32968 states and 37246 transitions. [2021-11-20 06:42:54,781 INFO L78 Accepts]: Start accepts. Automaton has 32968 states and 37246 transitions. Word has length 286 [2021-11-20 06:42:54,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:42:54,782 INFO L470 AbstractCegarLoop]: Abstraction has 32968 states and 37246 transitions. [2021-11-20 06:42:54,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 2 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:54,783 INFO L276 IsEmpty]: Start isEmpty. Operand 32968 states and 37246 transitions. [2021-11-20 06:42:54,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2021-11-20 06:42:54,822 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:42:54,823 INFO L514 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:42:54,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-20 06:42:54,824 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:42:54,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:42:54,825 INFO L85 PathProgramCache]: Analyzing trace with hash 664285702, now seen corresponding path program 1 times [2021-11-20 06:42:54,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:42:54,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977479578] [2021-11-20 06:42:54,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:42:54,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:42:55,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:55,129 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-11-20 06:42:55,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:42:55,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977479578] [2021-11-20 06:42:55,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977479578] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:42:55,130 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:42:55,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 06:42:55,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661326466] [2021-11-20 06:42:55,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:42:55,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:42:55,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:42:55,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:42:55,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:42:55,132 INFO L87 Difference]: Start difference. First operand 32968 states and 37246 transitions. Second operand has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 2 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:56,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:42:56,176 INFO L93 Difference]: Finished difference Result 64723 states and 73505 transitions. [2021-11-20 06:42:56,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:42:56,177 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 2 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 332 [2021-11-20 06:42:56,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:42:56,224 INFO L225 Difference]: With dead ends: 64723 [2021-11-20 06:42:56,225 INFO L226 Difference]: Without dead ends: 39284 [2021-11-20 06:42:56,243 INFO L932 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 [2021-11-20 06:42:56,244 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 158 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-20 06:42:56,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 148 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-20 06:42:56,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39284 states. [2021-11-20 06:42:56,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39284 to 37850. [2021-11-20 06:42:56,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37850 states, 37849 states have (on average 1.1412718962191868) internal successors, (43196), 37849 states have internal predecessors, (43196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:56,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37850 states to 37850 states and 43196 transitions. [2021-11-20 06:42:56,979 INFO L78 Accepts]: Start accepts. Automaton has 37850 states and 43196 transitions. Word has length 332 [2021-11-20 06:42:56,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:42:56,979 INFO L470 AbstractCegarLoop]: Abstraction has 37850 states and 43196 transitions. [2021-11-20 06:42:56,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 2 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:56,980 INFO L276 IsEmpty]: Start isEmpty. Operand 37850 states and 43196 transitions. [2021-11-20 06:42:57,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2021-11-20 06:42:57,046 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:42:57,047 INFO L514 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:42:57,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-20 06:42:57,047 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:42:57,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:42:57,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1040535542, now seen corresponding path program 1 times [2021-11-20 06:42:57,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:42:57,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090297125] [2021-11-20 06:42:57,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:42:57,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:42:57,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:42:57,239 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-20 06:42:57,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:42:57,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090297125] [2021-11-20 06:42:57,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090297125] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:42:57,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:42:57,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:42:57,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888190227] [2021-11-20 06:42:57,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:42:57,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:42:57,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:42:57,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:42:57,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:42:57,245 INFO L87 Difference]: Start difference. First operand 37850 states and 43196 transitions. Second operand has 4 states, 4 states have (on average 74.75) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:59,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:42:59,132 INFO L93 Difference]: Finished difference Result 71439 states and 81588 transitions. [2021-11-20 06:42:59,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:42:59,132 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 74.75) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 353 [2021-11-20 06:42:59,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:42:59,173 INFO L225 Difference]: With dead ends: 71439 [2021-11-20 06:42:59,173 INFO L226 Difference]: Without dead ends: 41933 [2021-11-20 06:42:59,195 INFO L932 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 [2021-11-20 06:42:59,196 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 335 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1125 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 1125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-20 06:42:59,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [335 Valid, 107 Invalid, 1334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 1125 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-20 06:42:59,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41933 states. [2021-11-20 06:42:59,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41933 to 38463. [2021-11-20 06:42:59,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38463 states, 38462 states have (on average 1.1416722999324007) internal successors, (43911), 38462 states have internal predecessors, (43911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:59,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38463 states to 38463 states and 43911 transitions. [2021-11-20 06:42:59,943 INFO L78 Accepts]: Start accepts. Automaton has 38463 states and 43911 transitions. Word has length 353 [2021-11-20 06:42:59,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:42:59,943 INFO L470 AbstractCegarLoop]: Abstraction has 38463 states and 43911 transitions. [2021-11-20 06:42:59,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.75) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:42:59,944 INFO L276 IsEmpty]: Start isEmpty. Operand 38463 states and 43911 transitions. [2021-11-20 06:42:59,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2021-11-20 06:42:59,973 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:42:59,973 INFO L514 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:42:59,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-20 06:42:59,973 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:42:59,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:42:59,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1499436243, now seen corresponding path program 1 times [2021-11-20 06:42:59,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:42:59,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512435799] [2021-11-20 06:42:59,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:42:59,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:43:00,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:00,174 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-11-20 06:43:00,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:43:00,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512435799] [2021-11-20 06:43:00,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512435799] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:43:00,175 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:43:00,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:43:00,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975355233] [2021-11-20 06:43:00,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:43:00,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:43:00,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:43:00,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:43:00,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:43:00,178 INFO L87 Difference]: Start difference. First operand 38463 states and 43911 transitions. Second operand has 4 states, 4 states have (on average 75.25) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:43:01,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:43:01,236 INFO L93 Difference]: Finished difference Result 71234 states and 81180 transitions. [2021-11-20 06:43:01,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:43:01,236 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 75.25) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 360 [2021-11-20 06:43:01,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:43:01,269 INFO L225 Difference]: With dead ends: 71234 [2021-11-20 06:43:01,270 INFO L226 Difference]: Without dead ends: 35630 [2021-11-20 06:43:01,285 INFO L932 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 [2021-11-20 06:43:01,286 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 696 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-20 06:43:01,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [696 Valid, 50 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-20 06:43:01,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35630 states. [2021-11-20 06:43:01,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35630 to 31762. [2021-11-20 06:43:01,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31762 states, 31761 states have (on average 1.092408929189887) internal successors, (34696), 31761 states have internal predecessors, (34696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:43:01,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31762 states to 31762 states and 34696 transitions. [2021-11-20 06:43:01,968 INFO L78 Accepts]: Start accepts. Automaton has 31762 states and 34696 transitions. Word has length 360 [2021-11-20 06:43:01,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:43:01,968 INFO L470 AbstractCegarLoop]: Abstraction has 31762 states and 34696 transitions. [2021-11-20 06:43:01,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.25) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:43:01,969 INFO L276 IsEmpty]: Start isEmpty. Operand 31762 states and 34696 transitions. [2021-11-20 06:43:01,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2021-11-20 06:43:01,994 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:43:01,995 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:43:01,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-20 06:43:01,995 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:43:01,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:43:01,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1123440841, now seen corresponding path program 1 times [2021-11-20 06:43:01,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:43:01,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180928530] [2021-11-20 06:43:01,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:43:01,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:43:02,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:02,217 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 188 proven. 6 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-20 06:43:02,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:43:02,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180928530] [2021-11-20 06:43:02,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180928530] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:43:02,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79373097] [2021-11-20 06:43:02,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:43:02,218 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:43:02,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:43:02,223 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:43:02,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 06:43:02,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:02,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 06:43:02,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:43:03,454 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-11-20 06:43:03,455 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:43:03,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79373097] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:43:03,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:43:03,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-11-20 06:43:03,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805874534] [2021-11-20 06:43:03,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:43:03,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:43:03,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:43:03,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:43:03,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:43:03,458 INFO L87 Difference]: Start difference. First operand 31762 states and 34696 transitions. Second operand has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 2 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:43:04,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:43:04,048 INFO L93 Difference]: Finished difference Result 82863 states and 90363 transitions. [2021-11-20 06:43:04,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:43:04,049 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 2 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 381 [2021-11-20 06:43:04,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:43:04,097 INFO L225 Difference]: With dead ends: 82863 [2021-11-20 06:43:04,097 INFO L226 Difference]: Without dead ends: 52324 [2021-11-20 06:43:04,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:43:04,113 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 179 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:43:04,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 474 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 06:43:04,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52324 states. [2021-11-20 06:43:04,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52324 to 49470. [2021-11-20 06:43:04,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49470 states, 49469 states have (on average 1.0892680264408012) internal successors, (53885), 49469 states have internal predecessors, (53885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:43:05,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49470 states to 49470 states and 53885 transitions. [2021-11-20 06:43:05,051 INFO L78 Accepts]: Start accepts. Automaton has 49470 states and 53885 transitions. Word has length 381 [2021-11-20 06:43:05,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:43:05,052 INFO L470 AbstractCegarLoop]: Abstraction has 49470 states and 53885 transitions. [2021-11-20 06:43:05,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 2 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:43:05,052 INFO L276 IsEmpty]: Start isEmpty. Operand 49470 states and 53885 transitions. [2021-11-20 06:43:05,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2021-11-20 06:43:05,091 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:43:05,092 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:43:05,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 06:43:05,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-20 06:43:05,311 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:43:05,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:43:05,312 INFO L85 PathProgramCache]: Analyzing trace with hash 851386247, now seen corresponding path program 1 times [2021-11-20 06:43:05,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:43:05,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118279798] [2021-11-20 06:43:05,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:43:05,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:43:05,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:05,869 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 182 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:43:05,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:43:05,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118279798] [2021-11-20 06:43:05,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118279798] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:43:05,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860639982] [2021-11-20 06:43:05,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:43:05,871 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:43:05,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:43:05,872 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:43:05,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 06:43:06,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:06,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 06:43:06,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:43:07,021 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-11-20 06:43:07,021 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:43:07,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [860639982] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:43:07,022 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:43:07,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2021-11-20 06:43:07,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285966476] [2021-11-20 06:43:07,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:43:07,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:43:07,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:43:07,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:43:07,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:43:07,026 INFO L87 Difference]: Start difference. First operand 49470 states and 53885 transitions. Second operand has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:43:07,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:43:07,926 INFO L93 Difference]: Finished difference Result 95085 states and 103732 transitions. [2021-11-20 06:43:07,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:43:07,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 381 [2021-11-20 06:43:07,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:43:08,329 INFO L225 Difference]: With dead ends: 95085 [2021-11-20 06:43:08,329 INFO L226 Difference]: Without dead ends: 48666 [2021-11-20 06:43:08,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:43:08,340 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 67 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 06:43:08,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 275 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 06:43:08,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48666 states. [2021-11-20 06:43:08,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48666 to 47643. [2021-11-20 06:43:08,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47643 states, 47642 states have (on average 1.0824482599387095) internal successors, (51570), 47642 states have internal predecessors, (51570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:43:08,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47643 states to 47643 states and 51570 transitions. [2021-11-20 06:43:08,891 INFO L78 Accepts]: Start accepts. Automaton has 47643 states and 51570 transitions. Word has length 381 [2021-11-20 06:43:08,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:43:08,892 INFO L470 AbstractCegarLoop]: Abstraction has 47643 states and 51570 transitions. [2021-11-20 06:43:08,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:43:08,893 INFO L276 IsEmpty]: Start isEmpty. Operand 47643 states and 51570 transitions. [2021-11-20 06:43:08,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2021-11-20 06:43:08,919 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:43:08,920 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:43:08,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 06:43:09,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-20 06:43:09,122 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:43:09,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:43:09,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1902302396, now seen corresponding path program 1 times [2021-11-20 06:43:09,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:43:09,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386573241] [2021-11-20 06:43:09,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:43:09,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:43:09,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:09,627 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 228 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2021-11-20 06:43:09,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:43:09,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386573241] [2021-11-20 06:43:09,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386573241] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:43:09,628 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:43:09,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 06:43:09,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258805919] [2021-11-20 06:43:09,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:43:09,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:43:09,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:43:09,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:43:09,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:43:09,633 INFO L87 Difference]: Start difference. First operand 47643 states and 51570 transitions. Second operand has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 2 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:43:10,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:43:10,630 INFO L93 Difference]: Finished difference Result 111799 states and 121356 transitions. [2021-11-20 06:43:10,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:43:10,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 2 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 447 [2021-11-20 06:43:10,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:43:10,700 INFO L225 Difference]: With dead ends: 111799 [2021-11-20 06:43:10,700 INFO L226 Difference]: Without dead ends: 67613 [2021-11-20 06:43:10,724 INFO L932 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 [2021-11-20 06:43:10,725 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 111 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 06:43:10,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 119 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-20 06:43:10,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67613 states. [2021-11-20 06:43:11,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67613 to 61318. [2021-11-20 06:43:11,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61318 states, 61317 states have (on average 1.0908720257024969) internal successors, (66889), 61317 states have internal predecessors, (66889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:43:11,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61318 states to 61318 states and 66889 transitions. [2021-11-20 06:43:11,732 INFO L78 Accepts]: Start accepts. Automaton has 61318 states and 66889 transitions. Word has length 447 [2021-11-20 06:43:11,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:43:11,732 INFO L470 AbstractCegarLoop]: Abstraction has 61318 states and 66889 transitions. [2021-11-20 06:43:11,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 2 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:43:11,733 INFO L276 IsEmpty]: Start isEmpty. Operand 61318 states and 66889 transitions. [2021-11-20 06:43:11,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2021-11-20 06:43:11,764 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:43:11,764 INFO L514 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:43:11,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-20 06:43:11,765 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:43:11,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:43:11,765 INFO L85 PathProgramCache]: Analyzing trace with hash -41546951, now seen corresponding path program 1 times [2021-11-20 06:43:11,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:43:11,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632742685] [2021-11-20 06:43:11,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:43:11,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:43:11,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:11,978 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 242 proven. 6 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2021-11-20 06:43:11,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:43:11,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632742685] [2021-11-20 06:43:11,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632742685] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:43:11,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868044201] [2021-11-20 06:43:11,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:43:11,979 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:43:11,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:43:11,983 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:43:12,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 06:43:12,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:12,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 707 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 06:43:12,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:43:13,602 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2021-11-20 06:43:13,604 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:43:13,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1868044201] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:43:13,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:43:13,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-11-20 06:43:13,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888877500] [2021-11-20 06:43:13,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:43:13,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:43:13,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:43:13,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:43:13,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:43:13,614 INFO L87 Difference]: Start difference. First operand 61318 states and 66889 transitions. Second operand has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 2 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:43:14,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:43:14,531 INFO L93 Difference]: Finished difference Result 151962 states and 166488 transitions. [2021-11-20 06:43:14,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:43:14,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 2 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 454 [2021-11-20 06:43:14,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:43:14,640 INFO L225 Difference]: With dead ends: 151962 [2021-11-20 06:43:14,640 INFO L226 Difference]: Without dead ends: 94304 [2021-11-20 06:43:14,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 453 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:43:14,675 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 158 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:43:14,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 389 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 06:43:14,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94304 states. [2021-11-20 06:43:16,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94304 to 93894. [2021-11-20 06:43:16,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93894 states, 93893 states have (on average 1.0963330599725218) internal successors, (102938), 93893 states have internal predecessors, (102938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:43:16,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93894 states to 93894 states and 102938 transitions. [2021-11-20 06:43:16,279 INFO L78 Accepts]: Start accepts. Automaton has 93894 states and 102938 transitions. Word has length 454 [2021-11-20 06:43:16,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:43:16,280 INFO L470 AbstractCegarLoop]: Abstraction has 93894 states and 102938 transitions. [2021-11-20 06:43:16,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 2 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:43:16,281 INFO L276 IsEmpty]: Start isEmpty. Operand 93894 states and 102938 transitions. [2021-11-20 06:43:16,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2021-11-20 06:43:16,358 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:43:16,359 INFO L514 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:43:16,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 06:43:16,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:43:16,588 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:43:16,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:43:16,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1606815490, now seen corresponding path program 1 times [2021-11-20 06:43:16,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:43:16,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979093921] [2021-11-20 06:43:16,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:43:16,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:43:17,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:17,772 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 265 proven. 131 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:43:17,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:43:17,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979093921] [2021-11-20 06:43:17,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979093921] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:43:17,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [417786333] [2021-11-20 06:43:17,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:43:17,773 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:43:17,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:43:17,774 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:43:17,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 06:43:18,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:18,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 707 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 06:43:18,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:43:19,113 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 265 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2021-11-20 06:43:19,113 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:43:19,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [417786333] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:43:19,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:43:19,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2021-11-20 06:43:19,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828869873] [2021-11-20 06:43:19,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:43:19,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:43:19,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:43:19,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:43:19,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:43:19,121 INFO L87 Difference]: Start difference. First operand 93894 states and 102938 transitions. Second operand has 3 states, 3 states have (on average 113.0) internal successors, (339), 2 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:43:20,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:43:20,834 INFO L93 Difference]: Finished difference Result 216300 states and 237902 transitions. [2021-11-20 06:43:20,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:43:20,835 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 113.0) internal successors, (339), 2 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 462 [2021-11-20 06:43:20,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:43:20,835 INFO L225 Difference]: With dead ends: 216300 [2021-11-20 06:43:20,835 INFO L226 Difference]: Without dead ends: 0 [2021-11-20 06:43:20,864 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 461 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:43:20,865 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 113 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 06:43:20,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 92 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-20 06:43:20,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-20 06:43:20,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-20 06:43:20,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:43:20,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-20 06:43:20,866 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 462 [2021-11-20 06:43:20,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:43:20,867 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 06:43:20,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.0) internal successors, (339), 2 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:43:20,867 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-20 06:43:20,867 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-20 06:43:20,870 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 06:43:20,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-20 06:43:21,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-11-20 06:43:21,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-20 06:43:34,054 WARN L227 SmtUtils]: Spent 12.96s on a formula simplification that was a NOOP. DAG size: 966 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-20 06:43:44,351 WARN L227 SmtUtils]: Spent 10.29s on a formula simplification that was a NOOP. DAG size: 966 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-20 06:43:57,137 WARN L227 SmtUtils]: Spent 12.77s on a formula simplification. DAG size of input: 966 DAG size of output: 71 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2021-11-20 06:44:09,419 WARN L227 SmtUtils]: Spent 12.28s on a formula simplification. DAG size of input: 966 DAG size of output: 71 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2021-11-20 06:44:09,422 INFO L858 garLoopResultBuilder]: For program point L1621(line 1621) no Hoare annotation was computed. [2021-11-20 06:44:09,422 INFO L858 garLoopResultBuilder]: For program point L1555(line 1555) no Hoare annotation was computed. [2021-11-20 06:44:09,422 INFO L858 garLoopResultBuilder]: For program point L498(lines 498 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,422 INFO L858 garLoopResultBuilder]: For program point L1489(line 1489) no Hoare annotation was computed. [2021-11-20 06:44:09,423 INFO L858 garLoopResultBuilder]: For program point L432(lines 432 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,423 INFO L858 garLoopResultBuilder]: For program point L366(lines 366 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,423 INFO L858 garLoopResultBuilder]: For program point L763(lines 763 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,423 INFO L858 garLoopResultBuilder]: For program point L632(lines 632 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,423 INFO L858 garLoopResultBuilder]: For program point L566(lines 566 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,423 INFO L858 garLoopResultBuilder]: For program point L1623-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,423 INFO L858 garLoopResultBuilder]: For program point L1557-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,424 INFO L858 garLoopResultBuilder]: For program point L1491-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,424 INFO L858 garLoopResultBuilder]: For program point L302(lines 302 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,424 INFO L858 garLoopResultBuilder]: For program point L1293(lines 1293 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,424 INFO L858 garLoopResultBuilder]: For program point L1624(line 1624) no Hoare annotation was computed. [2021-11-20 06:44:09,424 INFO L858 garLoopResultBuilder]: For program point L1558(line 1558) no Hoare annotation was computed. [2021-11-20 06:44:09,424 INFO L858 garLoopResultBuilder]: For program point L1492(line 1492) no Hoare annotation was computed. [2021-11-20 06:44:09,424 INFO L858 garLoopResultBuilder]: For program point L1360(lines 1360 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,424 INFO L858 garLoopResultBuilder]: For program point L1294(lines 1294 1313) no Hoare annotation was computed. [2021-11-20 06:44:09,424 INFO L858 garLoopResultBuilder]: For program point L1294-2(lines 1294 1313) no Hoare annotation was computed. [2021-11-20 06:44:09,424 INFO L858 garLoopResultBuilder]: For program point L1162(lines 1162 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,425 INFO L858 garLoopResultBuilder]: For program point L105(lines 105 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,425 INFO L858 garLoopResultBuilder]: For program point L1096(lines 1096 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,425 INFO L858 garLoopResultBuilder]: For program point L1031(lines 1031 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,425 INFO L858 garLoopResultBuilder]: For program point L965(lines 965 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,425 INFO L858 garLoopResultBuilder]: For program point L899(lines 899 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,425 INFO L858 garLoopResultBuilder]: For program point L1626-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,425 INFO L858 garLoopResultBuilder]: For program point L1560-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,426 INFO L858 garLoopResultBuilder]: For program point L1494-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,426 INFO L858 garLoopResultBuilder]: For program point L1627(line 1627) no Hoare annotation was computed. [2021-11-20 06:44:09,426 INFO L858 garLoopResultBuilder]: For program point L1561(line 1561) no Hoare annotation was computed. [2021-11-20 06:44:09,426 INFO L858 garLoopResultBuilder]: For program point L1495(line 1495) no Hoare annotation was computed. [2021-11-20 06:44:09,426 INFO L858 garLoopResultBuilder]: For program point L174(lines 174 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,426 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,426 INFO L858 garLoopResultBuilder]: For program point L1629-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,427 INFO L858 garLoopResultBuilder]: For program point L1563-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,427 INFO L858 garLoopResultBuilder]: For program point L1497-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,427 INFO L858 garLoopResultBuilder]: For program point L771(lines 771 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,427 INFO L858 garLoopResultBuilder]: For program point L1630(line 1630) no Hoare annotation was computed. [2021-11-20 06:44:09,427 INFO L858 garLoopResultBuilder]: For program point L1564(line 1564) no Hoare annotation was computed. [2021-11-20 06:44:09,427 INFO L858 garLoopResultBuilder]: For program point L507(lines 507 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,428 INFO L858 garLoopResultBuilder]: For program point L1498(line 1498) no Hoare annotation was computed. [2021-11-20 06:44:09,428 INFO L858 garLoopResultBuilder]: For program point L243(lines 243 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,428 INFO L858 garLoopResultBuilder]: For program point L508(lines 508 521) no Hoare annotation was computed. [2021-11-20 06:44:09,428 INFO L858 garLoopResultBuilder]: For program point L508-2(lines 508 521) no Hoare annotation was computed. [2021-11-20 06:44:09,428 INFO L858 garLoopResultBuilder]: For program point L1433(lines 1433 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,428 INFO L858 garLoopResultBuilder]: For program point L376(lines 376 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,428 INFO L858 garLoopResultBuilder]: For program point L1632-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,429 INFO L858 garLoopResultBuilder]: For program point L1566-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,429 INFO L858 garLoopResultBuilder]: For program point L1500-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,429 INFO L858 garLoopResultBuilder]: For program point L311(lines 311 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,429 INFO L858 garLoopResultBuilder]: For program point L1236(lines 1236 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,429 INFO L858 garLoopResultBuilder]: For program point L1633(line 1633) no Hoare annotation was computed. [2021-11-20 06:44:09,429 INFO L858 garLoopResultBuilder]: For program point L576(lines 576 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,429 INFO L858 garLoopResultBuilder]: For program point L1567(line 1567) no Hoare annotation was computed. [2021-11-20 06:44:09,430 INFO L858 garLoopResultBuilder]: For program point L1501(line 1501) no Hoare annotation was computed. [2021-11-20 06:44:09,430 INFO L858 garLoopResultBuilder]: For program point L444(lines 444 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,430 INFO L858 garLoopResultBuilder]: For program point L1369(lines 1369 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,430 INFO L858 garLoopResultBuilder]: For program point L1105(lines 1105 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,430 INFO L858 garLoopResultBuilder]: For program point L643(lines 643 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,430 INFO L858 garLoopResultBuilder]: For program point L1370(lines 1370 1389) no Hoare annotation was computed. [2021-11-20 06:44:09,431 INFO L858 garLoopResultBuilder]: For program point L1370-2(lines 1370 1389) no Hoare annotation was computed. [2021-11-20 06:44:09,431 INFO L858 garLoopResultBuilder]: For program point L1172(lines 1172 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,431 INFO L858 garLoopResultBuilder]: For program point L115(lines 115 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,431 INFO L858 garLoopResultBuilder]: For program point L1635-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,431 INFO L858 garLoopResultBuilder]: For program point L1569-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,431 INFO L858 garLoopResultBuilder]: For program point L1503-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,431 INFO L858 garLoopResultBuilder]: For program point L248(lines 248 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,432 INFO L858 garLoopResultBuilder]: For program point L182(lines 182 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,432 INFO L858 garLoopResultBuilder]: For program point L1041(lines 1041 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,432 INFO L858 garLoopResultBuilder]: For program point L909(lines 909 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,432 INFO L858 garLoopResultBuilder]: For program point L711(lines 711 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,432 INFO L858 garLoopResultBuilder]: For program point L1636(line 1636) no Hoare annotation was computed. [2021-11-20 06:44:09,432 INFO L858 garLoopResultBuilder]: For program point L1570(line 1570) no Hoare annotation was computed. [2021-11-20 06:44:09,432 INFO L858 garLoopResultBuilder]: For program point L1504(line 1504) no Hoare annotation was computed. [2021-11-20 06:44:09,433 INFO L858 garLoopResultBuilder]: For program point L976(lines 976 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,433 INFO L858 garLoopResultBuilder]: For program point L779(lines 779 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,433 INFO L858 garLoopResultBuilder]: For program point L1638-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,433 INFO L858 garLoopResultBuilder]: For program point L1572-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,433 INFO L858 garLoopResultBuilder]: For program point L1506-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,433 INFO L858 garLoopResultBuilder]: For program point L846(lines 846 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,434 INFO L858 garLoopResultBuilder]: For program point L1639(line 1639) no Hoare annotation was computed. [2021-11-20 06:44:09,434 INFO L858 garLoopResultBuilder]: For program point L1573(line 1573) no Hoare annotation was computed. [2021-11-20 06:44:09,434 INFO L858 garLoopResultBuilder]: For program point L1507(line 1507) no Hoare annotation was computed. [2021-11-20 06:44:09,434 INFO L858 garLoopResultBuilder]: For program point L451(lines 451 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,434 INFO L858 garLoopResultBuilder]: For program point L1442(lines 1442 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,434 INFO L858 garLoopResultBuilder]: For program point L584(lines 584 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,434 INFO L858 garLoopResultBuilder]: For program point L1641-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,435 INFO L858 garLoopResultBuilder]: For program point L1575-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,435 INFO L858 garLoopResultBuilder]: For program point L1509-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,435 INFO L858 garLoopResultBuilder]: For program point L1642(line 1642) no Hoare annotation was computed. [2021-11-20 06:44:09,435 INFO L858 garLoopResultBuilder]: For program point L1576(line 1576) no Hoare annotation was computed. [2021-11-20 06:44:09,435 INFO L858 garLoopResultBuilder]: For program point L1510(line 1510) no Hoare annotation was computed. [2021-11-20 06:44:09,435 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,435 INFO L858 garLoopResultBuilder]: For program point L1114(lines 1114 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,436 INFO L858 garLoopResultBuilder]: For program point L1048(lines 1048 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,436 INFO L858 garLoopResultBuilder]: For program point L388(lines 388 405) no Hoare annotation was computed. [2021-11-20 06:44:09,436 INFO L858 garLoopResultBuilder]: For program point L322(lines 322 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,436 INFO L858 garLoopResultBuilder]: For program point L388-2(lines 388 405) no Hoare annotation was computed. [2021-11-20 06:44:09,436 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-20 06:44:09,436 INFO L858 garLoopResultBuilder]: For program point L1247(lines 1247 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,436 INFO L858 garLoopResultBuilder]: For program point L124(lines 124 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,437 INFO L858 garLoopResultBuilder]: For program point L1049(lines 1049 1069) no Hoare annotation was computed. [2021-11-20 06:44:09,437 INFO L858 garLoopResultBuilder]: For program point L1049-2(lines 1049 1069) no Hoare annotation was computed. [2021-11-20 06:44:09,437 INFO L858 garLoopResultBuilder]: For program point L917(lines 917 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,437 INFO L858 garLoopResultBuilder]: For program point L719(lines 719 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,437 INFO L858 garLoopResultBuilder]: For program point L653(lines 653 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,437 INFO L858 garLoopResultBuilder]: For program point L1644-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,438 INFO L858 garLoopResultBuilder]: For program point L1578-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,438 INFO L858 garLoopResultBuilder]: For program point L1512-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,438 INFO L858 garLoopResultBuilder]: For program point L191(lines 191 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,438 INFO L858 garLoopResultBuilder]: For program point L720(lines 720 741) no Hoare annotation was computed. [2021-11-20 06:44:09,438 INFO L858 garLoopResultBuilder]: For program point L720-2(lines 720 741) no Hoare annotation was computed. [2021-11-20 06:44:09,438 INFO L858 garLoopResultBuilder]: For program point L1645(line 1645) no Hoare annotation was computed. [2021-11-20 06:44:09,438 INFO L858 garLoopResultBuilder]: For program point L1579(line 1579) no Hoare annotation was computed. [2021-11-20 06:44:09,439 INFO L858 garLoopResultBuilder]: For program point L1513(line 1513) no Hoare annotation was computed. [2021-11-20 06:44:09,439 INFO L858 garLoopResultBuilder]: For program point L1315(lines 1315 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,439 INFO L858 garLoopResultBuilder]: For program point L258(lines 258 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,439 INFO L858 garLoopResultBuilder]: For program point L1183(lines 1183 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,439 INFO L858 garLoopResultBuilder]: For program point L985(lines 985 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,439 INFO L858 garLoopResultBuilder]: For program point L787(lines 787 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,439 INFO L858 garLoopResultBuilder]: For program point L523(lines 523 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,440 INFO L858 garLoopResultBuilder]: For program point L854(lines 854 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,440 INFO L858 garLoopResultBuilder]: For program point L1647-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,440 INFO L858 garLoopResultBuilder]: For program point L1581-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,440 INFO L858 garLoopResultBuilder]: For program point L1515-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,440 INFO L858 garLoopResultBuilder]: For program point L1648(line 1648) no Hoare annotation was computed. [2021-11-20 06:44:09,440 INFO L858 garLoopResultBuilder]: For program point L1582(line 1582) no Hoare annotation was computed. [2021-11-20 06:44:09,441 INFO L858 garLoopResultBuilder]: For program point L1516(line 1516) no Hoare annotation was computed. [2021-11-20 06:44:09,441 INFO L858 garLoopResultBuilder]: For program point L460(lines 460 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,441 INFO L858 garLoopResultBuilder]: For program point L593(lines 593 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,441 INFO L858 garLoopResultBuilder]: For program point L1650-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,441 INFO L858 garLoopResultBuilder]: For program point L1584-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,441 INFO L858 garLoopResultBuilder]: For program point L1518-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,442 INFO L858 garLoopResultBuilder]: For program point L1452(lines 1452 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,442 INFO L858 garLoopResultBuilder]: For program point L329(lines 329 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,442 INFO L858 garLoopResultBuilder]: For program point L1122(lines 1122 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,442 INFO L858 garLoopResultBuilder]: For program point L65(lines 65 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,442 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-20 06:44:09,442 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1633) no Hoare annotation was computed. [2021-11-20 06:44:09,443 INFO L858 garLoopResultBuilder]: For program point L1651(line 1651) no Hoare annotation was computed. [2021-11-20 06:44:09,443 INFO L858 garLoopResultBuilder]: For program point L1585(line 1585) no Hoare annotation was computed. [2021-11-20 06:44:09,443 INFO L858 garLoopResultBuilder]: For program point L1519(line 1519) no Hoare annotation was computed. [2021-11-20 06:44:09,443 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 81) no Hoare annotation was computed. [2021-11-20 06:44:09,443 INFO L858 garLoopResultBuilder]: For program point L66-2(lines 66 81) no Hoare annotation was computed. [2021-11-20 06:44:09,443 INFO L858 garLoopResultBuilder]: For program point L794(lines 794 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,443 INFO L858 garLoopResultBuilder]: For program point L1653-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,444 INFO L858 garLoopResultBuilder]: For program point L1587-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,444 INFO L858 garLoopResultBuilder]: For program point L1521-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,444 INFO L858 garLoopResultBuilder]: For program point L1323(lines 1323 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,444 INFO L858 garLoopResultBuilder]: For program point L993(lines 993 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,444 INFO L858 garLoopResultBuilder]: For program point L927(lines 927 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,444 INFO L858 garLoopResultBuilder]: For program point L663(lines 663 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,444 INFO L858 garLoopResultBuilder]: For program point L1654(line 1654) no Hoare annotation was computed. [2021-11-20 06:44:09,445 INFO L858 garLoopResultBuilder]: For program point L1588(line 1588) no Hoare annotation was computed. [2021-11-20 06:44:09,445 INFO L858 garLoopResultBuilder]: For program point L1522(line 1522) no Hoare annotation was computed. [2021-11-20 06:44:09,445 INFO L858 garLoopResultBuilder]: For program point L267(lines 267 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,445 INFO L858 garLoopResultBuilder]: For program point L201(lines 201 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,445 INFO L858 garLoopResultBuilder]: For program point L1192(lines 1192 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,445 INFO L858 garLoopResultBuilder]: For program point L928(lines 928 945) no Hoare annotation was computed. [2021-11-20 06:44:09,445 INFO L858 garLoopResultBuilder]: For program point L928-2(lines 928 945) no Hoare annotation was computed. [2021-11-20 06:44:09,446 INFO L858 garLoopResultBuilder]: For program point L532(lines 532 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,446 INFO L858 garLoopResultBuilder]: For program point L1391(lines 1391 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,446 INFO L858 garLoopResultBuilder]: For program point L1259(lines 1259 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,446 INFO L858 garLoopResultBuilder]: For program point L202(lines 202 221) no Hoare annotation was computed. [2021-11-20 06:44:09,446 INFO L858 garLoopResultBuilder]: For program point L136(lines 136 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,446 INFO L858 garLoopResultBuilder]: For program point L202-2(lines 202 221) no Hoare annotation was computed. [2021-11-20 06:44:09,447 INFO L858 garLoopResultBuilder]: For program point L863(lines 863 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,447 INFO L858 garLoopResultBuilder]: For program point L1656-1(lines 1656 1658) no Hoare annotation was computed. [2021-11-20 06:44:09,447 INFO L858 garLoopResultBuilder]: For program point L1590-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,447 INFO L858 garLoopResultBuilder]: For program point L1524-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,447 INFO L858 garLoopResultBuilder]: For program point L1392(lines 1392 1410) no Hoare annotation was computed. [2021-11-20 06:44:09,447 INFO L858 garLoopResultBuilder]: For program point L1392-2(lines 1392 1410) no Hoare annotation was computed. [2021-11-20 06:44:09,447 INFO L858 garLoopResultBuilder]: For program point L1260(lines 1260 1282) no Hoare annotation was computed. [2021-11-20 06:44:09,448 INFO L858 garLoopResultBuilder]: For program point L1260-2(lines 1260 1282) no Hoare annotation was computed. [2021-11-20 06:44:09,448 INFO L858 garLoopResultBuilder]: For program point L1657(line 1657) no Hoare annotation was computed. [2021-11-20 06:44:09,448 INFO L858 garLoopResultBuilder]: For program point L1591(line 1591) no Hoare annotation was computed. [2021-11-20 06:44:09,448 INFO L858 garLoopResultBuilder]: For program point L1525(line 1525) no Hoare annotation was computed. [2021-11-20 06:44:09,448 INFO L858 garLoopResultBuilder]: For program point L468(lines 468 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,448 INFO L858 garLoopResultBuilder]: For program point L1130(lines 1130 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,448 INFO L858 garLoopResultBuilder]: For program point L668(lines 668 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,449 INFO L854 garLoopResultBuilder]: At program point L1659(lines 64 1660) the Hoare annotation is: (let ((.cse11 (<= ~a7~0 0)) (.cse3 (= ~a16~0 1)) (.cse13 (= ~a26~0 ~a2~0)) (.cse7 (= ~a3~0 1)) (.cse9 (= ~a12~0 1)) (.cse5 (= ~a0~0 1)) (.cse0 (= ~a26~0 1)) (.cse2 (<= ~a3~0 0)) (.cse6 (= ~a11~0 ~a6~0)) (.cse4 (= ~a27~0 1)) (.cse1 (= ~a5~0 1)) (.cse12 (<= 2 ~a3~0)) (.cse10 (= ~a6~0 0)) (.cse8 (<= ~a12~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse1 .cse6 .cse7 .cse8) (and .cse1 .cse9 .cse2 .cse6 .cse4 .cse5) (and .cse1 .cse10 .cse8 .cse5) (and .cse11 .cse0 .cse1 .cse2 .cse4 .cse5) (and .cse0 .cse1 .cse12 .cse8 .cse4 .cse5) (and .cse0 .cse1 .cse2 .cse3 .cse8 .cse4) (and .cse0 .cse1 .cse7 .cse8 .cse4) (and .cse1 .cse6 .cse7 .cse5) (and .cse1 (not (= ~a11~0 1))) (and .cse1 .cse2 .cse6 .cse8 .cse4) (and .cse0 .cse1 .cse9 .cse10) (and (= ~a25~0 ~a11~0) .cse1 .cse6 .cse7) (and .cse11 .cse1 .cse9 .cse12 .cse6 .cse3 .cse4) (and .cse1 .cse12 .cse6 .cse8) (and .cse1 .cse2 .cse10 .cse8 .cse4) (and .cse0 .cse1 .cse12 .cse10 .cse4) (and .cse1 .cse3 .cse10 .cse8 .cse4) (and .cse1 .cse6 .cse8 .cse5 .cse13) (and .cse0 .cse1 .cse9 .cse2 .cse4) (and .cse0 .cse1 .cse9 .cse12 .cse4 .cse5) (and .cse1 .cse12 .cse10 .cse4 .cse5) (and .cse1 .cse12 .cse6 .cse13) (and .cse1 .cse10 .cse7 .cse4 .cse5) (and .cse0 .cse1 .cse9 .cse2 .cse6) (and .cse1 .cse12 .cse6 .cse5) (and .cse0 .cse1 .cse2 .cse6 .cse4) (and .cse1 .cse12 .cse10 .cse8))) [2021-11-20 06:44:09,449 INFO L858 garLoopResultBuilder]: For program point L602(lines 602 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,449 INFO L858 garLoopResultBuilder]: For program point L1593-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,449 INFO L858 garLoopResultBuilder]: For program point L1527-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,450 INFO L858 garLoopResultBuilder]: For program point L1594(line 1594) no Hoare annotation was computed. [2021-11-20 06:44:09,450 INFO L858 garLoopResultBuilder]: For program point L1528(line 1528) no Hoare annotation was computed. [2021-11-20 06:44:09,450 INFO L858 garLoopResultBuilder]: For program point L1462(lines 1462 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,450 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,450 INFO L858 garLoopResultBuilder]: For program point L1331(lines 1331 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,450 INFO L861 garLoopResultBuilder]: At program point L1662(lines 1662 1679) the Hoare annotation is: true [2021-11-20 06:44:09,451 INFO L858 garLoopResultBuilder]: For program point L539(lines 539 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,451 INFO L858 garLoopResultBuilder]: For program point L1596-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,451 INFO L858 garLoopResultBuilder]: For program point L1530-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,451 INFO L858 garLoopResultBuilder]: For program point L407(lines 407 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,451 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,451 INFO L858 garLoopResultBuilder]: For program point L1200(lines 1200 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,451 INFO L858 garLoopResultBuilder]: For program point L1597(line 1597) no Hoare annotation was computed. [2021-11-20 06:44:09,452 INFO L858 garLoopResultBuilder]: For program point L1531(line 1531) no Hoare annotation was computed. [2021-11-20 06:44:09,452 INFO L858 garLoopResultBuilder]: For program point L805(lines 805 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,452 INFO L858 garLoopResultBuilder]: For program point L145(lines 145 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,452 INFO L858 garLoopResultBuilder]: For program point L1004(lines 1004 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,452 INFO L858 garLoopResultBuilder]: For program point L1599-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,452 INFO L858 garLoopResultBuilder]: For program point L1533-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,452 INFO L858 garLoopResultBuilder]: For program point L1137(lines 1137 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,453 INFO L858 garLoopResultBuilder]: For program point L1071(lines 1071 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,453 INFO L858 garLoopResultBuilder]: For program point L873(lines 873 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,453 INFO L858 garLoopResultBuilder]: For program point L675(lines 675 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,453 INFO L858 garLoopResultBuilder]: For program point L1600(line 1600) no Hoare annotation was computed. [2021-11-20 06:44:09,453 INFO L858 garLoopResultBuilder]: For program point L1534(line 1534) no Hoare annotation was computed. [2021-11-20 06:44:09,453 INFO L858 garLoopResultBuilder]: For program point L477(lines 477 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,453 INFO L858 garLoopResultBuilder]: For program point L1336(lines 1336 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,454 INFO L858 garLoopResultBuilder]: For program point L478(lines 478 488) no Hoare annotation was computed. [2021-11-20 06:44:09,454 INFO L858 garLoopResultBuilder]: For program point L478-2(lines 478 488) no Hoare annotation was computed. [2021-11-20 06:44:09,454 INFO L858 garLoopResultBuilder]: For program point L743(lines 743 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,454 INFO L854 garLoopResultBuilder]: At program point L1668-2(lines 1668 1678) the Hoare annotation is: (let ((.cse11 (<= ~a7~0 0)) (.cse3 (= ~a16~0 1)) (.cse13 (= ~a26~0 ~a2~0)) (.cse7 (= ~a3~0 1)) (.cse9 (= ~a12~0 1)) (.cse5 (= ~a0~0 1)) (.cse0 (= ~a26~0 1)) (.cse2 (<= ~a3~0 0)) (.cse6 (= ~a11~0 ~a6~0)) (.cse4 (= ~a27~0 1)) (.cse1 (= ~a5~0 1)) (.cse12 (<= 2 ~a3~0)) (.cse10 (= ~a6~0 0)) (.cse8 (<= ~a12~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse1 .cse6 .cse7 .cse8) (and .cse1 .cse9 .cse2 .cse6 .cse4 .cse5) (and .cse1 .cse10 .cse8 .cse5) (and .cse11 .cse0 .cse1 .cse2 .cse4 .cse5) (and .cse0 .cse1 .cse12 .cse8 .cse4 .cse5) (and .cse0 .cse1 .cse2 .cse3 .cse8 .cse4) (and .cse0 .cse1 .cse7 .cse8 .cse4) (and .cse1 .cse6 .cse7 .cse5) (and .cse1 (not (= ~a11~0 1))) (and .cse1 .cse2 .cse6 .cse8 .cse4) (and .cse0 .cse1 .cse9 .cse10) (and (= ~a25~0 ~a11~0) .cse1 .cse6 .cse7) (and .cse11 .cse1 .cse9 .cse12 .cse6 .cse3 .cse4) (and .cse1 .cse12 .cse6 .cse8) (and .cse1 .cse2 .cse10 .cse8 .cse4) (and .cse0 .cse1 .cse12 .cse10 .cse4) (and .cse1 .cse3 .cse10 .cse8 .cse4) (and .cse1 .cse6 .cse8 .cse5 .cse13) (and .cse0 .cse1 .cse9 .cse2 .cse4) (and .cse0 .cse1 .cse9 .cse12 .cse4 .cse5) (and .cse1 .cse12 .cse10 .cse4 .cse5) (and .cse1 .cse12 .cse6 .cse13) (and .cse1 .cse10 .cse7 .cse4 .cse5) (and .cse0 .cse1 .cse9 .cse2 .cse6) (and .cse1 .cse12 .cse6 .cse5) (and .cse0 .cse1 .cse2 .cse6 .cse4) (and .cse1 .cse12 .cse10 .cse8))) [2021-11-20 06:44:09,454 INFO L858 garLoopResultBuilder]: For program point L1602-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,455 INFO L858 garLoopResultBuilder]: For program point L1536-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,455 INFO L858 garLoopResultBuilder]: For program point L1470(lines 1470 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,455 INFO L858 garLoopResultBuilder]: For program point L83(lines 83 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,455 INFO L858 garLoopResultBuilder]: For program point L1603(line 1603) no Hoare annotation was computed. [2021-11-20 06:44:09,455 INFO L858 garLoopResultBuilder]: For program point L1537(line 1537) no Hoare annotation was computed. [2021-11-20 06:44:09,455 INFO L858 garLoopResultBuilder]: For program point L613(lines 613 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,456 INFO L858 garLoopResultBuilder]: For program point L415(lines 415 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,456 INFO L858 garLoopResultBuilder]: For program point L349(lines 349 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,456 INFO L858 garLoopResultBuilder]: For program point L1142(lines 1142 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,456 INFO L858 garLoopResultBuilder]: For program point L1076(lines 1076 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,456 INFO L858 garLoopResultBuilder]: For program point L878(lines 878 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,456 INFO L858 garLoopResultBuilder]: For program point L1605-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,456 INFO L858 garLoopResultBuilder]: For program point L1539-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,457 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-20 06:44:09,457 INFO L858 garLoopResultBuilder]: For program point L879(lines 879 897) no Hoare annotation was computed. [2021-11-20 06:44:09,457 INFO L858 garLoopResultBuilder]: For program point L879-2(lines 879 897) no Hoare annotation was computed. [2021-11-20 06:44:09,457 INFO L858 garLoopResultBuilder]: For program point L1606(line 1606) no Hoare annotation was computed. [2021-11-20 06:44:09,457 INFO L858 garLoopResultBuilder]: For program point L549(lines 549 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,457 INFO L858 garLoopResultBuilder]: For program point L1540(line 1540) no Hoare annotation was computed. [2021-11-20 06:44:09,457 INFO L858 garLoopResultBuilder]: For program point L1210(lines 1210 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,458 INFO L858 garLoopResultBuilder]: For program point L814(lines 814 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,458 INFO L858 garLoopResultBuilder]: For program point L1673(line 1673) no Hoare annotation was computed. [2021-11-20 06:44:09,458 INFO L858 garLoopResultBuilder]: For program point L286(lines 286 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,458 INFO L858 garLoopResultBuilder]: For program point L1013(lines 1013 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,458 INFO L858 garLoopResultBuilder]: For program point L947(lines 947 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,458 INFO L858 garLoopResultBuilder]: For program point L1608-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,458 INFO L858 garLoopResultBuilder]: For program point L1542-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,458 INFO L858 garLoopResultBuilder]: For program point L1476(lines 1476 1478) no Hoare annotation was computed. [2021-11-20 06:44:09,458 INFO L858 garLoopResultBuilder]: For program point L1476-2(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,458 INFO L858 garLoopResultBuilder]: For program point L1609(line 1609) no Hoare annotation was computed. [2021-11-20 06:44:09,459 INFO L858 garLoopResultBuilder]: For program point L1543(line 1543) no Hoare annotation was computed. [2021-11-20 06:44:09,459 INFO L858 garLoopResultBuilder]: For program point L1477(line 1477) no Hoare annotation was computed. [2021-11-20 06:44:09,459 INFO L858 garLoopResultBuilder]: For program point L156(lines 156 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,459 INFO L858 garLoopResultBuilder]: For program point L685(lines 685 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,459 INFO L858 garLoopResultBuilder]: For program point L1412(lines 1412 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,459 INFO L858 garLoopResultBuilder]: For program point L1346(lines 1346 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,460 INFO L858 garLoopResultBuilder]: For program point L223(lines 223 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,460 INFO L858 garLoopResultBuilder]: For program point L1611-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,460 INFO L858 garLoopResultBuilder]: For program point L1545-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,460 INFO L858 garLoopResultBuilder]: For program point L1479-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,460 INFO L858 garLoopResultBuilder]: For program point L1413(lines 1413 1431) no Hoare annotation was computed. [2021-11-20 06:44:09,460 INFO L858 garLoopResultBuilder]: For program point L1413-2(lines 1413 1431) no Hoare annotation was computed. [2021-11-20 06:44:09,461 INFO L858 garLoopResultBuilder]: For program point L92(lines 92 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,461 INFO L858 garLoopResultBuilder]: For program point L753(lines 753 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,461 INFO L858 garLoopResultBuilder]: For program point L1612(line 1612) no Hoare annotation was computed. [2021-11-20 06:44:09,461 INFO L858 garLoopResultBuilder]: For program point L1546(line 1546) no Hoare annotation was computed. [2021-11-20 06:44:09,461 INFO L858 garLoopResultBuilder]: For program point L1480(line 1480) no Hoare annotation was computed. [2021-11-20 06:44:09,461 INFO L858 garLoopResultBuilder]: For program point L1084(lines 1084 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,461 INFO L858 garLoopResultBuilder]: For program point L556(lines 556 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,462 INFO L858 garLoopResultBuilder]: For program point L490(lines 490 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,462 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,462 INFO L858 garLoopResultBuilder]: For program point L358(lines 358 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,462 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-20 06:44:09,462 INFO L858 garLoopResultBuilder]: For program point L1614-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,462 INFO L858 garLoopResultBuilder]: For program point L1548-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,462 INFO L858 garLoopResultBuilder]: For program point L1482-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,463 INFO L858 garLoopResultBuilder]: For program point L1284(lines 1284 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,463 INFO L858 garLoopResultBuilder]: For program point L1152(lines 1152 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,463 INFO L858 garLoopResultBuilder]: For program point L624(lines 624 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,463 INFO L858 garLoopResultBuilder]: For program point L1615(line 1615) no Hoare annotation was computed. [2021-11-20 06:44:09,463 INFO L858 garLoopResultBuilder]: For program point L1549(line 1549) no Hoare annotation was computed. [2021-11-20 06:44:09,463 INFO L858 garLoopResultBuilder]: For program point L1483(line 1483) no Hoare annotation was computed. [2021-11-20 06:44:09,463 INFO L858 garLoopResultBuilder]: For program point L294(lines 294 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,464 INFO L858 garLoopResultBuilder]: For program point L1021(lines 1021 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,464 INFO L858 garLoopResultBuilder]: For program point L823(lines 823 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,464 INFO L858 garLoopResultBuilder]: For program point L1220(lines 1220 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,464 INFO L858 garLoopResultBuilder]: For program point L1617-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,464 INFO L858 garLoopResultBuilder]: For program point L1551-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,464 INFO L858 garLoopResultBuilder]: For program point L1485-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,465 INFO L858 garLoopResultBuilder]: For program point L1221(lines 1221 1234) no Hoare annotation was computed. [2021-11-20 06:44:09,465 INFO L858 garLoopResultBuilder]: For program point L1221-2(lines 1221 1234) no Hoare annotation was computed. [2021-11-20 06:44:09,465 INFO L858 garLoopResultBuilder]: For program point L957(lines 957 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,465 INFO L858 garLoopResultBuilder]: For program point L1618(line 1618) no Hoare annotation was computed. [2021-11-20 06:44:09,465 INFO L858 garLoopResultBuilder]: For program point L1552(line 1552) no Hoare annotation was computed. [2021-11-20 06:44:09,465 INFO L858 garLoopResultBuilder]: For program point L1486(line 1486) no Hoare annotation was computed. [2021-11-20 06:44:09,465 INFO L858 garLoopResultBuilder]: For program point L1354(lines 1354 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,466 INFO L858 garLoopResultBuilder]: For program point L165(lines 165 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,466 INFO L858 garLoopResultBuilder]: For program point L99(lines 99 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,466 INFO L858 garLoopResultBuilder]: For program point L694(lines 694 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,466 INFO L858 garLoopResultBuilder]: For program point L232(lines 232 1475) no Hoare annotation was computed. [2021-11-20 06:44:09,466 INFO L858 garLoopResultBuilder]: For program point L695(lines 695 709) no Hoare annotation was computed. [2021-11-20 06:44:09,466 INFO L858 garLoopResultBuilder]: For program point L695-2(lines 695 709) no Hoare annotation was computed. [2021-11-20 06:44:09,466 INFO L858 garLoopResultBuilder]: For program point L1620-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,467 INFO L858 garLoopResultBuilder]: For program point L1554-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,467 INFO L858 garLoopResultBuilder]: For program point L1488-1(lines 64 1660) no Hoare annotation was computed. [2021-11-20 06:44:09,470 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:44:09,472 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 06:44:09,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:44:09 BoogieIcfgContainer [2021-11-20 06:44:09,503 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 06:44:09,504 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:44:09,504 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:44:09,504 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:44:09,505 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:42:27" (3/4) ... [2021-11-20 06:44:09,508 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-20 06:44:09,545 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-20 06:44:09,562 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-20 06:44:09,566 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-20 06:44:09,570 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-20 06:44:09,799 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 06:44:09,799 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:44:09,800 INFO L158 Benchmark]: Toolchain (without parser) took 106372.52ms. Allocated memory was 102.8MB in the beginning and 12.4GB in the end (delta: 12.3GB). Free memory was 62.8MB in the beginning and 10.3GB in the end (delta: -10.2GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. [2021-11-20 06:44:09,804 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 102.8MB. Free memory was 58.0MB in the beginning and 57.9MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:44:09,805 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1469.75ms. Allocated memory was 102.8MB in the beginning and 132.1MB in the end (delta: 29.4MB). Free memory was 62.6MB in the beginning and 92.1MB in the end (delta: -29.5MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. [2021-11-20 06:44:09,805 INFO L158 Benchmark]: Boogie Procedure Inliner took 160.40ms. Allocated memory is still 132.1MB. Free memory was 92.1MB in the beginning and 77.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-20 06:44:09,806 INFO L158 Benchmark]: Boogie Preprocessor took 123.23ms. Allocated memory is still 132.1MB. Free memory was 77.4MB in the beginning and 67.7MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 06:44:09,806 INFO L158 Benchmark]: RCFGBuilder took 2548.77ms. Allocated memory was 132.1MB in the beginning and 182.5MB in the end (delta: 50.3MB). Free memory was 67.7MB in the beginning and 85.9MB in the end (delta: -18.3MB). Peak memory consumption was 36.5MB. Max. memory is 16.1GB. [2021-11-20 06:44:09,809 INFO L158 Benchmark]: TraceAbstraction took 101762.79ms. Allocated memory was 182.5MB in the beginning and 12.4GB in the end (delta: 12.2GB). Free memory was 84.9MB in the beginning and 10.3GB in the end (delta: -10.2GB). Peak memory consumption was 6.1GB. Max. memory is 16.1GB. [2021-11-20 06:44:09,809 INFO L158 Benchmark]: Witness Printer took 295.61ms. Allocated memory is still 12.4GB. Free memory was 10.3GB in the beginning and 10.3GB in the end (delta: 36.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2021-11-20 06:44:09,817 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 102.8MB. Free memory was 58.0MB in the beginning and 57.9MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1469.75ms. Allocated memory was 102.8MB in the beginning and 132.1MB in the end (delta: 29.4MB). Free memory was 62.6MB in the beginning and 92.1MB in the end (delta: -29.5MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 160.40ms. Allocated memory is still 132.1MB. Free memory was 92.1MB in the beginning and 77.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 123.23ms. Allocated memory is still 132.1MB. Free memory was 77.4MB in the beginning and 67.7MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 2548.77ms. Allocated memory was 132.1MB in the beginning and 182.5MB in the end (delta: 50.3MB). Free memory was 67.7MB in the beginning and 85.9MB in the end (delta: -18.3MB). Peak memory consumption was 36.5MB. Max. memory is 16.1GB. * TraceAbstraction took 101762.79ms. Allocated memory was 182.5MB in the beginning and 12.4GB in the end (delta: 12.2GB). Free memory was 84.9MB in the beginning and 10.3GB in the end (delta: -10.2GB). Peak memory consumption was 6.1GB. Max. memory is 16.1GB. * Witness Printer took 295.61ms. Allocated memory is still 12.4GB. Free memory was 10.3GB in the beginning and 10.3GB in the end (delta: 36.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1633]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 302 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 101.6s, OverallIterations: 21, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.8s, AutomataDifference: 26.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 48.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4681 SdHoareTripleChecker+Valid, 19.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4681 mSDsluCounter, 4194 SdHoareTripleChecker+Invalid, 16.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 828 mSDsCounter, 2076 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12567 IncrementalHoareTripleChecker+Invalid, 14643 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2076 mSolverCounterUnsat, 3366 mSDtfsCounter, 12567 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1980 GetRequests, 1940 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=93894occurred in iteration=20, InterpolantAutomatonStates: 66, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 11.9s AutomataMinimizationTime, 21 MinimizatonAttempts, 26394 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 1231 NumberOfFragments, 877 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 23.3s HoareSimplificationTime, 3 FomulaSimplificationsInter, 49850 FormulaSimplificationTreeSizeReductionInter, 25.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.6s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 8.6s InterpolantComputationTime, 8161 NumberOfCodeBlocks, 8161 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 8135 ConstructedInterpolants, 0 QuantifiedInterpolants, 29547 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3161 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 26 InterpolantComputations, 21 PerfectInterpolantSequences, 4129/4345 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1662]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((a26 == 1 && a5 == 1) && a3 <= 0) && a16 == 1) && a27 == 1) && a0 == 1) || (((a5 == 1 && a11 == a6) && a3 == 1) && a12 <= 0)) || (((((a5 == 1 && a12 == 1) && a3 <= 0) && a11 == a6) && a27 == 1) && a0 == 1)) || (((a5 == 1 && a6 == 0) && a12 <= 0) && a0 == 1)) || (((((a7 <= 0 && a26 == 1) && a5 == 1) && a3 <= 0) && a27 == 1) && a0 == 1)) || (((((a26 == 1 && a5 == 1) && 2 <= a3) && a12 <= 0) && a27 == 1) && a0 == 1)) || (((((a26 == 1 && a5 == 1) && a3 <= 0) && a16 == 1) && a12 <= 0) && a27 == 1)) || ((((a26 == 1 && a5 == 1) && a3 == 1) && a12 <= 0) && a27 == 1)) || (((a5 == 1 && a11 == a6) && a3 == 1) && a0 == 1)) || (a5 == 1 && !(a11 == 1))) || ((((a5 == 1 && a3 <= 0) && a11 == a6) && a12 <= 0) && a27 == 1)) || (((a26 == 1 && a5 == 1) && a12 == 1) && a6 == 0)) || (((a25 == a11 && a5 == 1) && a11 == a6) && a3 == 1)) || ((((((a7 <= 0 && a5 == 1) && a12 == 1) && 2 <= a3) && a11 == a6) && a16 == 1) && a27 == 1)) || (((a5 == 1 && 2 <= a3) && a11 == a6) && a12 <= 0)) || ((((a5 == 1 && a3 <= 0) && a6 == 0) && a12 <= 0) && a27 == 1)) || ((((a26 == 1 && a5 == 1) && 2 <= a3) && a6 == 0) && a27 == 1)) || ((((a5 == 1 && a16 == 1) && a6 == 0) && a12 <= 0) && a27 == 1)) || ((((a5 == 1 && a11 == a6) && a12 <= 0) && a0 == 1) && a26 == a2)) || ((((a26 == 1 && a5 == 1) && a12 == 1) && a3 <= 0) && a27 == 1)) || (((((a26 == 1 && a5 == 1) && a12 == 1) && 2 <= a3) && a27 == 1) && a0 == 1)) || ((((a5 == 1 && 2 <= a3) && a6 == 0) && a27 == 1) && a0 == 1)) || (((a5 == 1 && 2 <= a3) && a11 == a6) && a26 == a2)) || ((((a5 == 1 && a6 == 0) && a3 == 1) && a27 == 1) && a0 == 1)) || ((((a26 == 1 && a5 == 1) && a12 == 1) && a3 <= 0) && a11 == a6)) || (((a5 == 1 && 2 <= a3) && a11 == a6) && a0 == 1)) || ((((a26 == 1 && a5 == 1) && a3 <= 0) && a11 == a6) && a27 == 1)) || (((a5 == 1 && 2 <= a3) && a6 == 0) && a12 <= 0) - InvariantResult [Line: 1668]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((a26 == 1 && a5 == 1) && a3 <= 0) && a16 == 1) && a27 == 1) && a0 == 1) || (((a5 == 1 && a11 == a6) && a3 == 1) && a12 <= 0)) || (((((a5 == 1 && a12 == 1) && a3 <= 0) && a11 == a6) && a27 == 1) && a0 == 1)) || (((a5 == 1 && a6 == 0) && a12 <= 0) && a0 == 1)) || (((((a7 <= 0 && a26 == 1) && a5 == 1) && a3 <= 0) && a27 == 1) && a0 == 1)) || (((((a26 == 1 && a5 == 1) && 2 <= a3) && a12 <= 0) && a27 == 1) && a0 == 1)) || (((((a26 == 1 && a5 == 1) && a3 <= 0) && a16 == 1) && a12 <= 0) && a27 == 1)) || ((((a26 == 1 && a5 == 1) && a3 == 1) && a12 <= 0) && a27 == 1)) || (((a5 == 1 && a11 == a6) && a3 == 1) && a0 == 1)) || (a5 == 1 && !(a11 == 1))) || ((((a5 == 1 && a3 <= 0) && a11 == a6) && a12 <= 0) && a27 == 1)) || (((a26 == 1 && a5 == 1) && a12 == 1) && a6 == 0)) || (((a25 == a11 && a5 == 1) && a11 == a6) && a3 == 1)) || ((((((a7 <= 0 && a5 == 1) && a12 == 1) && 2 <= a3) && a11 == a6) && a16 == 1) && a27 == 1)) || (((a5 == 1 && 2 <= a3) && a11 == a6) && a12 <= 0)) || ((((a5 == 1 && a3 <= 0) && a6 == 0) && a12 <= 0) && a27 == 1)) || ((((a26 == 1 && a5 == 1) && 2 <= a3) && a6 == 0) && a27 == 1)) || ((((a5 == 1 && a16 == 1) && a6 == 0) && a12 <= 0) && a27 == 1)) || ((((a5 == 1 && a11 == a6) && a12 <= 0) && a0 == 1) && a26 == a2)) || ((((a26 == 1 && a5 == 1) && a12 == 1) && a3 <= 0) && a27 == 1)) || (((((a26 == 1 && a5 == 1) && a12 == 1) && 2 <= a3) && a27 == 1) && a0 == 1)) || ((((a5 == 1 && 2 <= a3) && a6 == 0) && a27 == 1) && a0 == 1)) || (((a5 == 1 && 2 <= a3) && a11 == a6) && a26 == a2)) || ((((a5 == 1 && a6 == 0) && a3 == 1) && a27 == 1) && a0 == 1)) || ((((a26 == 1 && a5 == 1) && a12 == 1) && a3 <= 0) && a11 == a6)) || (((a5 == 1 && 2 <= a3) && a11 == a6) && a0 == 1)) || ((((a26 == 1 && a5 == 1) && a3 <= 0) && a11 == a6) && a27 == 1)) || (((a5 == 1 && 2 <= a3) && a6 == 0) && a12 <= 0) RESULT: Ultimate proved your program to be correct! [2021-11-20 06:44:09,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b20354-f0a0-44db-8554-98b42d078064/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE