./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c01b47-e856-4778-b5e5-c5c9db019818/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c01b47-e856-4778-b5e5-c5c9db019818/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c01b47-e856-4778-b5e5-c5c9db019818/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c01b47-e856-4778-b5e5-c5c9db019818/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c01b47-e856-4778-b5e5-c5c9db019818/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c01b47-e856-4778-b5e5-c5c9db019818/bin/utaipan-EQgc7hIp5V --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bf75d7f1708750397c6bdac14ac08b964b10a95dcecc15b57a02c9969977c6ec --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:31:56,852 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:31:56,856 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:31:56,915 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:31:56,916 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:31:56,920 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:31:56,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:31:56,926 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:31:56,929 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:31:56,934 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:31:56,936 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:31:56,938 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:31:56,938 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:31:56,941 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:31:56,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:31:56,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:31:56,953 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:31:56,954 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:31:56,957 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:31:56,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:31:56,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:31:56,972 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:31:56,976 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:31:56,977 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:31:56,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:31:56,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:31:56,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:31:56,989 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:31:56,990 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:31:56,991 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:31:56,992 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:31:56,993 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:31:56,995 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:31:56,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:31:56,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:31:56,999 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:31:56,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:31:57,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:31:57,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:31:57,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:31:57,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:31:57,002 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c01b47-e856-4778-b5e5-c5c9db019818/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 02:31:57,048 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:31:57,048 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:31:57,049 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:31:57,049 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:31:57,050 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:31:57,051 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:31:57,051 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:31:57,051 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:31:57,051 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:31:57,052 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:31:57,053 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:31:57,053 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:31:57,053 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:31:57,054 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:31:57,054 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:31:57,054 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:31:57,054 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:31:57,055 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:31:57,055 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:31:57,056 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:31:57,056 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:31:57,057 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:31:57,057 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:31:57,057 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:31:57,057 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:31:57,058 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:31:57,060 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:31:57,060 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:31:57,060 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:31:57,061 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:31:57,061 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:31:57,061 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:31:57,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:31:57,062 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:31:57,062 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:31:57,062 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:31:57,062 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:31:57,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:31:57,063 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:31:57,063 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:31:57,063 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:31:57,064 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_b5c01b47-e856-4778-b5e5-c5c9db019818/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c01b47-e856-4778-b5e5-c5c9db019818/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf75d7f1708750397c6bdac14ac08b964b10a95dcecc15b57a02c9969977c6ec [2021-11-23 02:31:57,399 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:31:57,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:31:57,437 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:31:57,438 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:31:57,439 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:31:57,441 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c01b47-e856-4778-b5e5-c5c9db019818/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-1.c [2021-11-23 02:31:57,501 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c01b47-e856-4778-b5e5-c5c9db019818/bin/utaipan-EQgc7hIp5V/data/09de468f1/da10fb6dbb414e0a93abece06c99705a/FLAGe069e9557 [2021-11-23 02:31:58,101 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:31:58,103 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c01b47-e856-4778-b5e5-c5c9db019818/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-1.c [2021-11-23 02:31:58,121 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c01b47-e856-4778-b5e5-c5c9db019818/bin/utaipan-EQgc7hIp5V/data/09de468f1/da10fb6dbb414e0a93abece06c99705a/FLAGe069e9557 [2021-11-23 02:31:58,515 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c01b47-e856-4778-b5e5-c5c9db019818/bin/utaipan-EQgc7hIp5V/data/09de468f1/da10fb6dbb414e0a93abece06c99705a [2021-11-23 02:31:58,517 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:31:58,519 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:31:58,523 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:31:58,523 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:31:58,530 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:31:58,531 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:31:58" (1/1) ... [2021-11-23 02:31:58,532 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24029541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:58, skipping insertion in model container [2021-11-23 02:31:58,533 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:31:58" (1/1) ... [2021-11-23 02:31:58,541 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:31:58,607 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:31:58,907 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_b5c01b47-e856-4778-b5e5-c5c9db019818/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-1.c[29620,29633] [2021-11-23 02:31:58,910 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:31:58,929 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:31:59,050 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_b5c01b47-e856-4778-b5e5-c5c9db019818/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-1.c[29620,29633] [2021-11-23 02:31:59,050 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:31:59,075 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:31:59,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:59 WrapperNode [2021-11-23 02:31:59,075 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:31:59,076 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:31:59,077 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:31:59,077 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:31:59,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:59" (1/1) ... [2021-11-23 02:31:59,099 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:59" (1/1) ... [2021-11-23 02:31:59,168 INFO L137 Inliner]: procedures = 29, calls = 43, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 662 [2021-11-23 02:31:59,169 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:31:59,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:31:59,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:31:59,170 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:31:59,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:59" (1/1) ... [2021-11-23 02:31:59,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:59" (1/1) ... [2021-11-23 02:31:59,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:59" (1/1) ... [2021-11-23 02:31:59,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:59" (1/1) ... [2021-11-23 02:31:59,208 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:59" (1/1) ... [2021-11-23 02:31:59,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:59" (1/1) ... [2021-11-23 02:31:59,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:59" (1/1) ... [2021-11-23 02:31:59,225 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:31:59,226 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:31:59,226 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:31:59,226 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:31:59,227 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:59" (1/1) ... [2021-11-23 02:31:59,235 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:31:59,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c01b47-e856-4778-b5e5-c5c9db019818/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:31:59,268 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c01b47-e856-4778-b5e5-c5c9db019818/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:31:59,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c01b47-e856-4778-b5e5-c5c9db019818/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:31:59,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:31:59,310 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2021-11-23 02:31:59,310 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2021-11-23 02:31:59,311 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2021-11-23 02:31:59,311 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2021-11-23 02:31:59,311 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_CreateClose [2021-11-23 02:31:59,311 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_CreateClose [2021-11-23 02:31:59,311 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2021-11-23 02:31:59,312 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2021-11-23 02:31:59,312 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2021-11-23 02:31:59,312 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2021-11-23 02:31:59,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:31:59,312 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2021-11-23 02:31:59,312 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2021-11-23 02:31:59,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:31:59,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:31:59,313 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_DispatchPassThrough [2021-11-23 02:31:59,313 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_DispatchPassThrough [2021-11-23 02:31:59,509 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:31:59,511 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:31:59,687 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-23 02:31:59,694 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-23 02:31:59,698 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-23 02:31:59,707 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-23 02:31:59,710 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-23 02:32:00,278 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume !false; [2021-11-23 02:32:00,278 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##86: assume false; [2021-11-23 02:32:00,279 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##63: assume !false; [2021-11-23 02:32:00,279 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##62: assume false; [2021-11-23 02:32:00,279 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##129: assume false; [2021-11-23 02:32:00,279 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##130: assume !false; [2021-11-23 02:32:00,279 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2021-11-23 02:32:00,279 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2021-11-23 02:32:00,280 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##113: assume !false; [2021-11-23 02:32:00,280 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##112: assume false; [2021-11-23 02:32:00,300 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-23 02:32:00,340 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2021-11-23 02:32:00,341 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2021-11-23 02:32:00,352 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:32:00,595 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:32:00,596 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 02:32:00,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:32:00 BoogieIcfgContainer [2021-11-23 02:32:00,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:32:00,602 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:32:00,602 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:32:00,606 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:32:00,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:31:58" (1/3) ... [2021-11-23 02:32:00,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e771b66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:32:00, skipping insertion in model container [2021-11-23 02:32:00,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:59" (2/3) ... [2021-11-23 02:32:00,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e771b66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:32:00, skipping insertion in model container [2021-11-23 02:32:00,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:32:00" (3/3) ... [2021-11-23 02:32:00,610 INFO L111 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2.cil-1.c [2021-11-23 02:32:00,617 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:32:00,617 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:32:00,667 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:32:00,675 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=FINITE_AUTOMATA, 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 [2021-11-23 02:32:00,675 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:32:00,699 INFO L276 IsEmpty]: Start isEmpty. Operand has 136 states, 99 states have (on average 1.606060606060606) internal successors, (159), 116 states have internal predecessors, (159), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2021-11-23 02:32:00,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 02:32:00,707 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:32:00,707 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:32:00,708 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:32:00,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:32:00,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1069953189, now seen corresponding path program 1 times [2021-11-23 02:32:00,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:32:00,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424696696] [2021-11-23 02:32:00,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:32:00,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:32:00,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:32:00,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:32:00,932 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:32:00,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424696696] [2021-11-23 02:32:00,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424696696] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:32:00,933 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:32:00,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:32:00,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111879508] [2021-11-23 02:32:00,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:32:00,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:32:00,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:32:00,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:32:00,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:32:00,977 INFO L87 Difference]: Start difference. First operand has 136 states, 99 states have (on average 1.606060606060606) internal successors, (159), 116 states have internal predecessors, (159), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:32:01,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:32:01,191 INFO L93 Difference]: Finished difference Result 252 states and 394 transitions. [2021-11-23 02:32:01,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:32:01,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-23 02:32:01,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:32:01,206 INFO L225 Difference]: With dead ends: 252 [2021-11-23 02:32:01,207 INFO L226 Difference]: Without dead ends: 144 [2021-11-23 02:32:01,212 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 [2021-11-23 02:32:01,216 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 73 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:32:01,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 228 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:32:01,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-11-23 02:32:01,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 142. [2021-11-23 02:32:01,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 109 states have (on average 1.4036697247706422) internal successors, (153), 117 states have internal predecessors, (153), 25 states have call successors, (25), 11 states have call predecessors, (25), 7 states have return successors, (18), 16 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-23 02:32:01,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 196 transitions. [2021-11-23 02:32:01,306 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 196 transitions. Word has length 10 [2021-11-23 02:32:01,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:32:01,307 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 196 transitions. [2021-11-23 02:32:01,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:32:01,309 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 196 transitions. [2021-11-23 02:32:01,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 02:32:01,311 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:32:01,312 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:32:01,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:32:01,313 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:32:01,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:32:01,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1665386427, now seen corresponding path program 1 times [2021-11-23 02:32:01,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:32:01,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730697324] [2021-11-23 02:32:01,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:32:01,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:32:01,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:32:01,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:32:01,416 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:32:01,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730697324] [2021-11-23 02:32:01,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730697324] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:32:01,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:32:01,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:32:01,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094268205] [2021-11-23 02:32:01,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:32:01,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:32:01,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:32:01,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:32:01,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:32:01,426 INFO L87 Difference]: Start difference. First operand 142 states and 196 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:32:01,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:32:01,576 INFO L93 Difference]: Finished difference Result 227 states and 307 transitions. [2021-11-23 02:32:01,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:32:01,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-23 02:32:01,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:32:01,579 INFO L225 Difference]: With dead ends: 227 [2021-11-23 02:32:01,579 INFO L226 Difference]: Without dead ends: 173 [2021-11-23 02:32:01,580 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 [2021-11-23 02:32:01,582 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 142 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:32:01,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 192 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:32:01,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-11-23 02:32:01,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 155. [2021-11-23 02:32:01,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 125 states have (on average 1.376) internal successors, (172), 130 states have internal predecessors, (172), 21 states have call successors, (21), 11 states have call predecessors, (21), 8 states have return successors, (17), 14 states have call predecessors, (17), 16 states have call successors, (17) [2021-11-23 02:32:01,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 210 transitions. [2021-11-23 02:32:01,622 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 210 transitions. Word has length 11 [2021-11-23 02:32:01,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:32:01,623 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 210 transitions. [2021-11-23 02:32:01,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:32:01,623 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 210 transitions. [2021-11-23 02:32:01,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 02:32:01,624 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:32:01,624 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:32:01,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:32:01,625 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:32:01,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:32:01,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1334442572, now seen corresponding path program 1 times [2021-11-23 02:32:01,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:32:01,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751823348] [2021-11-23 02:32:01,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:32:01,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:32:01,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:32:01,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:32:01,681 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:32:01,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751823348] [2021-11-23 02:32:01,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751823348] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:32:01,683 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:32:01,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:32:01,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648739270] [2021-11-23 02:32:01,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:32:01,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:32:01,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:32:01,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:32:01,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:32:01,686 INFO L87 Difference]: Start difference. First operand 155 states and 210 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:32:01,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:32:01,754 INFO L93 Difference]: Finished difference Result 169 states and 227 transitions. [2021-11-23 02:32:01,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:32:01,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-23 02:32:01,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:32:01,762 INFO L225 Difference]: With dead ends: 169 [2021-11-23 02:32:01,762 INFO L226 Difference]: Without dead ends: 155 [2021-11-23 02:32:01,764 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 [2021-11-23 02:32:01,766 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 76 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:32:01,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 200 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:32:01,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-11-23 02:32:01,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2021-11-23 02:32:01,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 125 states have (on average 1.368) internal successors, (171), 130 states have internal predecessors, (171), 21 states have call successors, (21), 11 states have call predecessors, (21), 8 states have return successors, (17), 14 states have call predecessors, (17), 16 states have call successors, (17) [2021-11-23 02:32:01,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 209 transitions. [2021-11-23 02:32:01,789 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 209 transitions. Word has length 11 [2021-11-23 02:32:01,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:32:01,789 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 209 transitions. [2021-11-23 02:32:01,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:32:01,790 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 209 transitions. [2021-11-23 02:32:01,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 02:32:01,792 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:32:01,792 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:32:01,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:32:01,792 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:32:01,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:32:01,793 INFO L85 PathProgramCache]: Analyzing trace with hash -929395180, now seen corresponding path program 1 times [2021-11-23 02:32:01,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:32:01,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186838840] [2021-11-23 02:32:01,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:32:01,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:32:01,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:32:01,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:32:01,875 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:32:01,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186838840] [2021-11-23 02:32:01,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186838840] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:32:01,876 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:32:01,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:32:01,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610846984] [2021-11-23 02:32:01,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:32:01,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:32:01,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:32:01,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:32:01,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:32:01,894 INFO L87 Difference]: Start difference. First operand 155 states and 209 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:32:01,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:32:01,992 INFO L93 Difference]: Finished difference Result 158 states and 211 transitions. [2021-11-23 02:32:01,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:32:01,993 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-23 02:32:01,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:32:01,995 INFO L225 Difference]: With dead ends: 158 [2021-11-23 02:32:01,995 INFO L226 Difference]: Without dead ends: 154 [2021-11-23 02:32:01,996 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 [2021-11-23 02:32:01,997 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 13 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:32:01,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 218 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:32:01,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-11-23 02:32:02,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2021-11-23 02:32:02,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 125 states have (on average 1.352) internal successors, (169), 129 states have internal predecessors, (169), 20 states have call successors, (20), 11 states have call predecessors, (20), 8 states have return successors, (17), 14 states have call predecessors, (17), 16 states have call successors, (17) [2021-11-23 02:32:02,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 206 transitions. [2021-11-23 02:32:02,020 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 206 transitions. Word has length 16 [2021-11-23 02:32:02,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:32:02,021 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 206 transitions. [2021-11-23 02:32:02,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:32:02,021 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 206 transitions. [2021-11-23 02:32:02,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 02:32:02,033 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:32:02,034 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] [2021-11-23 02:32:02,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:32:02,034 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:32:02,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:32:02,035 INFO L85 PathProgramCache]: Analyzing trace with hash -2078191330, now seen corresponding path program 1 times [2021-11-23 02:32:02,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:32:02,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901996306] [2021-11-23 02:32:02,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:32:02,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:32:02,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:32:02,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:32:02,213 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:32:02,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901996306] [2021-11-23 02:32:02,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901996306] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:32:02,214 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:32:02,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:32:02,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173944303] [2021-11-23 02:32:02,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:32:02,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:32:02,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:32:02,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:32:02,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:32:02,216 INFO L87 Difference]: Start difference. First operand 154 states and 206 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:32:02,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:32:02,421 INFO L93 Difference]: Finished difference Result 183 states and 243 transitions. [2021-11-23 02:32:02,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:32:02,422 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-23 02:32:02,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:32:02,425 INFO L225 Difference]: With dead ends: 183 [2021-11-23 02:32:02,425 INFO L226 Difference]: Without dead ends: 154 [2021-11-23 02:32:02,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:32:02,433 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 163 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:32:02,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 179 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 02:32:02,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-11-23 02:32:02,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2021-11-23 02:32:02,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 125 states have (on average 1.336) internal successors, (167), 129 states have internal predecessors, (167), 20 states have call successors, (20), 11 states have call predecessors, (20), 8 states have return successors, (17), 14 states have call predecessors, (17), 16 states have call successors, (17) [2021-11-23 02:32:02,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 204 transitions. [2021-11-23 02:32:02,477 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 204 transitions. Word has length 22 [2021-11-23 02:32:02,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:32:02,477 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 204 transitions. [2021-11-23 02:32:02,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:32:02,478 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 204 transitions. [2021-11-23 02:32:02,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 02:32:02,485 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:32:02,486 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] [2021-11-23 02:32:02,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:32:02,486 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:32:02,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:32:02,487 INFO L85 PathProgramCache]: Analyzing trace with hash -46672306, now seen corresponding path program 1 times [2021-11-23 02:32:02,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:32:02,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372565813] [2021-11-23 02:32:02,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:32:02,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:32:02,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:32:02,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:32:02,624 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:32:02,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372565813] [2021-11-23 02:32:02,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372565813] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:32:02,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:32:02,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:32:02,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959229876] [2021-11-23 02:32:02,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:32:02,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:32:02,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:32:02,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:32:02,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:32:02,627 INFO L87 Difference]: Start difference. First operand 154 states and 204 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:32:02,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:32:02,809 INFO L93 Difference]: Finished difference Result 183 states and 241 transitions. [2021-11-23 02:32:02,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:32:02,810 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-23 02:32:02,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:32:02,813 INFO L225 Difference]: With dead ends: 183 [2021-11-23 02:32:02,813 INFO L226 Difference]: Without dead ends: 154 [2021-11-23 02:32:02,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:32:02,818 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 162 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:32:02,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 186 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:32:02,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-11-23 02:32:02,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2021-11-23 02:32:02,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 125 states have (on average 1.32) internal successors, (165), 129 states have internal predecessors, (165), 20 states have call successors, (20), 11 states have call predecessors, (20), 8 states have return successors, (17), 14 states have call predecessors, (17), 16 states have call successors, (17) [2021-11-23 02:32:02,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 202 transitions. [2021-11-23 02:32:02,842 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 202 transitions. Word has length 23 [2021-11-23 02:32:02,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:32:02,843 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 202 transitions. [2021-11-23 02:32:02,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:32:02,843 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 202 transitions. [2021-11-23 02:32:02,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 02:32:02,845 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:32:02,846 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] [2021-11-23 02:32:02,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 02:32:02,846 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:32:02,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:32:02,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1411188493, now seen corresponding path program 1 times [2021-11-23 02:32:02,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:32:02,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117635003] [2021-11-23 02:32:02,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:32:02,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:32:02,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:32:02,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:32:02,928 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:32:02,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117635003] [2021-11-23 02:32:02,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117635003] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:32:02,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:32:02,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:32:02,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462934797] [2021-11-23 02:32:02,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:32:02,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:32:02,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:32:02,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:32:02,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:32:02,931 INFO L87 Difference]: Start difference. First operand 154 states and 202 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 02:32:03,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:32:03,039 INFO L93 Difference]: Finished difference Result 192 states and 244 transitions. [2021-11-23 02:32:03,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:32:03,040 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2021-11-23 02:32:03,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:32:03,044 INFO L225 Difference]: With dead ends: 192 [2021-11-23 02:32:03,044 INFO L226 Difference]: Without dead ends: 153 [2021-11-23 02:32:03,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:32:03,048 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 179 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:32:03,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 279 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:32:03,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-11-23 02:32:03,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 138. [2021-11-23 02:32:03,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 111 states have (on average 1.2972972972972974) internal successors, (144), 115 states have internal predecessors, (144), 18 states have call successors, (18), 10 states have call predecessors, (18), 8 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-23 02:32:03,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 176 transitions. [2021-11-23 02:32:03,067 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 176 transitions. Word has length 24 [2021-11-23 02:32:03,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:32:03,068 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 176 transitions. [2021-11-23 02:32:03,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 02:32:03,068 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 176 transitions. [2021-11-23 02:32:03,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 02:32:03,071 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:32:03,071 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] [2021-11-23 02:32:03,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 02:32:03,073 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:32:03,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:32:03,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1213163261, now seen corresponding path program 1 times [2021-11-23 02:32:03,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:32:03,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398795854] [2021-11-23 02:32:03,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:32:03,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:32:03,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:32:03,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:32:03,138 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:32:03,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398795854] [2021-11-23 02:32:03,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398795854] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:32:03,139 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:32:03,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:32:03,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956717584] [2021-11-23 02:32:03,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:32:03,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:32:03,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:32:03,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:32:03,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:32:03,141 INFO L87 Difference]: Start difference. First operand 138 states and 176 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:32:03,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:32:03,194 INFO L93 Difference]: Finished difference Result 147 states and 187 transitions. [2021-11-23 02:32:03,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:32:03,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-23 02:32:03,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:32:03,195 INFO L225 Difference]: With dead ends: 147 [2021-11-23 02:32:03,195 INFO L226 Difference]: Without dead ends: 46 [2021-11-23 02:32:03,198 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 [2021-11-23 02:32:03,199 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 145 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:32:03,199 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 126 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:32:03,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-11-23 02:32:03,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-11-23 02:32:03,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 35 states have (on average 1.2) internal successors, (42), 37 states have internal predecessors, (42), 7 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 02:32:03,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2021-11-23 02:32:03,213 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 24 [2021-11-23 02:32:03,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:32:03,213 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2021-11-23 02:32:03,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:32:03,213 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2021-11-23 02:32:03,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-23 02:32:03,214 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:32:03,214 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] [2021-11-23 02:32:03,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 02:32:03,214 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:32:03,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:32:03,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1250659667, now seen corresponding path program 1 times [2021-11-23 02:32:03,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:32:03,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138972277] [2021-11-23 02:32:03,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:32:03,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:32:03,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:32:03,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:32:03,256 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:32:03,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138972277] [2021-11-23 02:32:03,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138972277] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:32:03,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:32:03,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:32:03,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687918984] [2021-11-23 02:32:03,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:32:03,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:32:03,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:32:03,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:32:03,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:32:03,258 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:32:03,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:32:03,291 INFO L93 Difference]: Finished difference Result 63 states and 71 transitions. [2021-11-23 02:32:03,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:32:03,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2021-11-23 02:32:03,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:32:03,293 INFO L225 Difference]: With dead ends: 63 [2021-11-23 02:32:03,293 INFO L226 Difference]: Without dead ends: 44 [2021-11-23 02:32:03,293 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 [2021-11-23 02:32:03,294 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:32:03,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 60 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:32:03,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-11-23 02:32:03,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-11-23 02:32:03,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 35 states have internal predecessors, (39), 6 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 02:32:03,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2021-11-23 02:32:03,300 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 28 [2021-11-23 02:32:03,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:32:03,300 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2021-11-23 02:32:03,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:32:03,301 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2021-11-23 02:32:03,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-23 02:32:03,301 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:32:03,301 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] [2021-11-23 02:32:03,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 02:32:03,302 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:32:03,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:32:03,302 INFO L85 PathProgramCache]: Analyzing trace with hash 482144993, now seen corresponding path program 1 times [2021-11-23 02:32:03,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:32:03,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221645942] [2021-11-23 02:32:03,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:32:03,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:32:03,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:32:03,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:32:03,337 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:32:03,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221645942] [2021-11-23 02:32:03,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221645942] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:32:03,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:32:03,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:32:03,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678395881] [2021-11-23 02:32:03,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:32:03,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:32:03,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:32:03,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:32:03,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:32:03,340 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:32:03,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:32:03,372 INFO L93 Difference]: Finished difference Result 56 states and 59 transitions. [2021-11-23 02:32:03,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:32:03,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2021-11-23 02:32:03,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:32:03,374 INFO L225 Difference]: With dead ends: 56 [2021-11-23 02:32:03,374 INFO L226 Difference]: Without dead ends: 53 [2021-11-23 02:32:03,374 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 [2021-11-23 02:32:03,375 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 8 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:32:03,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 66 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:32:03,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-11-23 02:32:03,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 46. [2021-11-23 02:32:03,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 37 states have internal predecessors, (41), 6 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 02:32:03,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2021-11-23 02:32:03,380 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 29 [2021-11-23 02:32:03,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:32:03,381 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2021-11-23 02:32:03,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:32:03,381 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2021-11-23 02:32:03,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 02:32:03,382 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:32:03,382 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] [2021-11-23 02:32:03,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-23 02:32:03,382 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:32:03,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:32:03,383 INFO L85 PathProgramCache]: Analyzing trace with hash -692307987, now seen corresponding path program 1 times [2021-11-23 02:32:03,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:32:03,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448014758] [2021-11-23 02:32:03,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:32:03,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:32:03,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:32:03,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:32:03,464 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:32:03,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448014758] [2021-11-23 02:32:03,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448014758] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:32:03,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:32:03,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:32:03,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287781755] [2021-11-23 02:32:03,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:32:03,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:32:03,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:32:03,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:32:03,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:32:03,466 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:32:03,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:32:03,511 INFO L93 Difference]: Finished difference Result 65 states and 71 transitions. [2021-11-23 02:32:03,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:32:03,512 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2021-11-23 02:32:03,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:32:03,512 INFO L225 Difference]: With dead ends: 65 [2021-11-23 02:32:03,513 INFO L226 Difference]: Without dead ends: 44 [2021-11-23 02:32:03,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:32:03,514 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 6 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:32:03,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 127 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:32:03,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-11-23 02:32:03,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-11-23 02:32:03,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 34 states have (on average 1.1176470588235294) internal successors, (38), 35 states have internal predecessors, (38), 6 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 02:32:03,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2021-11-23 02:32:03,519 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 30 [2021-11-23 02:32:03,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:32:03,520 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2021-11-23 02:32:03,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:32:03,520 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2021-11-23 02:32:03,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-23 02:32:03,521 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:32:03,521 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] [2021-11-23 02:32:03,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-23 02:32:03,521 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:32:03,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:32:03,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1297164998, now seen corresponding path program 1 times [2021-11-23 02:32:03,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:32:03,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790307548] [2021-11-23 02:32:03,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:32:03,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:32:03,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:32:03,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:32:03,573 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:32:03,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790307548] [2021-11-23 02:32:03,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790307548] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:32:03,573 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:32:03,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:32:03,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899559438] [2021-11-23 02:32:03,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:32:03,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:32:03,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:32:03,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:32:03,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:32:03,577 INFO L87 Difference]: Start difference. First operand 44 states and 47 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-23 02:32:03,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:32:03,644 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2021-11-23 02:32:03,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:32:03,644 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 34 [2021-11-23 02:32:03,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:32:03,645 INFO L225 Difference]: With dead ends: 63 [2021-11-23 02:32:03,645 INFO L226 Difference]: Without dead ends: 44 [2021-11-23 02:32:03,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:32:03,648 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 33 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:32:03,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 67 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:32:03,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-11-23 02:32:03,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-11-23 02:32:03,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 34 states have (on average 1.088235294117647) internal successors, (37), 35 states have internal predecessors, (37), 6 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 02:32:03,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 46 transitions. [2021-11-23 02:32:03,654 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 46 transitions. Word has length 34 [2021-11-23 02:32:03,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:32:03,656 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 46 transitions. [2021-11-23 02:32:03,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-23 02:32:03,657 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2021-11-23 02:32:03,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-23 02:32:03,657 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:32:03,658 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] [2021-11-23 02:32:03,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-23 02:32:03,658 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:32:03,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:32:03,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1488217942, now seen corresponding path program 1 times [2021-11-23 02:32:03,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:32:03,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951548752] [2021-11-23 02:32:03,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:32:03,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:32:03,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:32:03,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:32:03,937 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:32:03,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951548752] [2021-11-23 02:32:03,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951548752] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:32:03,938 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:32:03,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 02:32:03,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248141651] [2021-11-23 02:32:03,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:32:03,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 02:32:03,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:32:03,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 02:32:03,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:32:03,940 INFO L87 Difference]: Start difference. First operand 44 states and 46 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-23 02:32:04,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:32:04,130 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2021-11-23 02:32:04,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 02:32:04,131 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2021-11-23 02:32:04,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:32:04,132 INFO L225 Difference]: With dead ends: 51 [2021-11-23 02:32:04,132 INFO L226 Difference]: Without dead ends: 44 [2021-11-23 02:32:04,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-11-23 02:32:04,133 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 76 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:32:04,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 39 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:32:04,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-11-23 02:32:04,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-11-23 02:32:04,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 34 states have (on average 1.0588235294117647) internal successors, (36), 35 states have internal predecessors, (36), 6 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 02:32:04,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 45 transitions. [2021-11-23 02:32:04,140 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 45 transitions. Word has length 35 [2021-11-23 02:32:04,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:32:04,140 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 45 transitions. [2021-11-23 02:32:04,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-23 02:32:04,140 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 45 transitions. [2021-11-23 02:32:04,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-23 02:32:04,141 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:32:04,142 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] [2021-11-23 02:32:04,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-23 02:32:04,142 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:32:04,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:32:04,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1027817967, now seen corresponding path program 1 times [2021-11-23 02:32:04,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:32:04,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553292180] [2021-11-23 02:32:04,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:32:04,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:32:04,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:32:04,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:32:04,193 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:32:04,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553292180] [2021-11-23 02:32:04,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553292180] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:32:04,193 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:32:04,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:32:04,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482555669] [2021-11-23 02:32:04,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:32:04,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:32:04,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:32:04,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:32:04,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:32:04,195 INFO L87 Difference]: Start difference. First operand 44 states and 45 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-23 02:32:04,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:32:04,216 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2021-11-23 02:32:04,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:32:04,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2021-11-23 02:32:04,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:32:04,219 INFO L225 Difference]: With dead ends: 52 [2021-11-23 02:32:04,220 INFO L226 Difference]: Without dead ends: 40 [2021-11-23 02:32:04,220 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 [2021-11-23 02:32:04,221 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 13 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:32:04,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 40 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:32:04,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-11-23 02:32:04,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-11-23 02:32:04,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 31 states have (on average 1.0) internal successors, (31), 31 states have internal predecessors, (31), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 02:32:04,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 39 transitions. [2021-11-23 02:32:04,228 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 39 transitions. Word has length 35 [2021-11-23 02:32:04,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:32:04,228 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 39 transitions. [2021-11-23 02:32:04,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-23 02:32:04,229 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 39 transitions. [2021-11-23 02:32:04,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-23 02:32:04,229 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:32:04,229 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] [2021-11-23 02:32:04,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-23 02:32:04,230 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:32:04,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:32:04,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1339607755, now seen corresponding path program 1 times [2021-11-23 02:32:04,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:32:04,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037926408] [2021-11-23 02:32:04,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:32:04,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:32:04,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:32:04,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:32:04,333 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:32:04,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037926408] [2021-11-23 02:32:04,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037926408] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:32:04,333 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:32:04,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 02:32:04,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198543639] [2021-11-23 02:32:04,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:32:04,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 02:32:04,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:32:04,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 02:32:04,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-23 02:32:04,335 INFO L87 Difference]: Start difference. First operand 40 states and 39 transitions. Second operand has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-23 02:32:04,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:32:04,394 INFO L93 Difference]: Finished difference Result 40 states and 39 transitions. [2021-11-23 02:32:04,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 02:32:04,394 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2021-11-23 02:32:04,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:32:04,395 INFO L225 Difference]: With dead ends: 40 [2021-11-23 02:32:04,395 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 02:32:04,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:32:04,398 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 2 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:32:04,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 78 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:32:04,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 02:32:04,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 02:32:04,399 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) [2021-11-23 02:32:04,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 02:32:04,400 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2021-11-23 02:32:04,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:32:04,400 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 02:32:04,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-23 02:32:04,401 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 02:32:04,401 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 02:32:04,404 INFO L764 garLoopResultBuilder]: Registering result SAFE for location errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 02:32:04,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-23 02:32:04,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 02:32:05,821 INFO L861 garLoopResultBuilder]: At program point KbFilter_CompleteENTRY(lines 618 628) the Hoare annotation is: true [2021-11-23 02:32:05,822 INFO L858 garLoopResultBuilder]: For program point KbFilter_CompleteEXIT(lines 618 628) no Hoare annotation was computed. [2021-11-23 02:32:05,822 INFO L858 garLoopResultBuilder]: For program point L638(lines 638 656) no Hoare annotation was computed. [2021-11-23 02:32:05,822 INFO L858 garLoopResultBuilder]: For program point KbFilter_CreateCloseEXIT(lines 629 664) no Hoare annotation was computed. [2021-11-23 02:32:05,822 INFO L854 garLoopResultBuilder]: At program point L653(lines 641 655) the Hoare annotation is: (or (= 3 ~NP~0) (not (= ~SKIP1~0 3)) (not (= ~NP~0 |old(~s~0)|)) (not (= ~compRegistered~0 0)) (= ~pended~0 1) (= ~MPR1~0 3) (= ~s~0 ~NP~0)) [2021-11-23 02:32:05,822 INFO L854 garLoopResultBuilder]: At program point L645(lines 638 656) the Hoare annotation is: (or (= 3 ~NP~0) (not (= ~SKIP1~0 3)) (not (= ~NP~0 |old(~s~0)|)) (not (= ~compRegistered~0 0)) (= ~pended~0 1) (= ~MPR1~0 3) (= ~s~0 ~NP~0)) [2021-11-23 02:32:05,822 INFO L858 garLoopResultBuilder]: For program point L641(lines 641 655) no Hoare annotation was computed. [2021-11-23 02:32:05,822 INFO L854 garLoopResultBuilder]: At program point KbFilter_CreateCloseENTRY(lines 629 664) the Hoare annotation is: (or (= 3 ~NP~0) (not (= ~SKIP1~0 3)) (not (= ~NP~0 |old(~s~0)|)) (not (= ~compRegistered~0 0)) (= ~pended~0 1) (= ~MPR1~0 3) (= ~s~0 ~NP~0)) [2021-11-23 02:32:05,823 INFO L854 garLoopResultBuilder]: At program point L660(line 660) the Hoare annotation is: (or (= 3 ~NP~0) (not (= ~SKIP1~0 3)) (not (= ~NP~0 |old(~s~0)|)) (not (= ~compRegistered~0 0)) (= ~pended~0 1) (= ~MPR1~0 3) (= ~s~0 ~NP~0)) [2021-11-23 02:32:05,823 INFO L858 garLoopResultBuilder]: For program point L660-1(line 660) no Hoare annotation was computed. [2021-11-23 02:32:05,823 INFO L858 garLoopResultBuilder]: For program point L644(lines 644 654) no Hoare annotation was computed. [2021-11-23 02:32:05,823 INFO L858 garLoopResultBuilder]: For program point L562-1(lines 554 567) no Hoare annotation was computed. [2021-11-23 02:32:05,823 INFO L858 garLoopResultBuilder]: For program point L558(lines 558 564) no Hoare annotation was computed. [2021-11-23 02:32:05,823 INFO L854 garLoopResultBuilder]: At program point IofCompleteRequestENTRY(lines 554 567) the Hoare annotation is: (let ((.cse0 (= 3 ~NP~0)) (.cse1 (not (= ~SKIP1~0 3))) (.cse2 (not (= ~NP~0 |old(~s~0)|))) (.cse3 (= ~pended~0 1)) (.cse4 (= ~MPR1~0 3)) (.cse5 (= ~s~0 ~NP~0))) (and (or .cse0 .cse1 .cse2 (not (= ~compRegistered~0 0)) .cse3 .cse4 .cse5) (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (not (= ~compRegistered~0 1))))) [2021-11-23 02:32:05,823 INFO L858 garLoopResultBuilder]: For program point IofCompleteRequestEXIT(lines 554 567) no Hoare annotation was computed. [2021-11-23 02:32:05,823 INFO L854 garLoopResultBuilder]: At program point L562(line 562) the Hoare annotation is: (let ((.cse0 (= 3 ~NP~0)) (.cse1 (not (= ~SKIP1~0 3))) (.cse2 (not (= ~NP~0 |old(~s~0)|))) (.cse3 (= ~pended~0 1)) (.cse4 (= ~MPR1~0 3))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 (not (= ~compRegistered~0 1))) (or .cse0 .cse1 .cse2 (not (= ~compRegistered~0 0)) .cse3 .cse4))) [2021-11-23 02:32:05,824 INFO L861 garLoopResultBuilder]: At program point errorFnENTRY(lines 1009 1016) the Hoare annotation is: true [2021-11-23 02:32:05,824 INFO L858 garLoopResultBuilder]: For program point errorFnEXIT(lines 1009 1016) no Hoare annotation was computed. [2021-11-23 02:32:05,824 INFO L858 garLoopResultBuilder]: For program point errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1013) no Hoare annotation was computed. [2021-11-23 02:32:05,824 INFO L854 garLoopResultBuilder]: At program point L762(line 762) the Hoare annotation is: false [2021-11-23 02:32:05,824 INFO L858 garLoopResultBuilder]: For program point L432(lines 432 459) no Hoare annotation was computed. [2021-11-23 02:32:05,824 INFO L858 garLoopResultBuilder]: For program point L433(lines 433 439) no Hoare annotation was computed. [2021-11-23 02:32:05,824 INFO L858 garLoopResultBuilder]: For program point L896(lines 896 984) no Hoare annotation was computed. [2021-11-23 02:32:05,824 INFO L858 garLoopResultBuilder]: For program point L797(lines 797 817) no Hoare annotation was computed. [2021-11-23 02:32:05,824 INFO L858 garLoopResultBuilder]: For program point L434(lines 434 436) no Hoare annotation was computed. [2021-11-23 02:32:05,825 INFO L854 garLoopResultBuilder]: At program point L368(lines 368 409) the Hoare annotation is: (and (not (= ~MPR1~0 3)) (not (= ~pended~0 1)) (<= 0 |ULTIMATE.start_main_~status~1#1|) (not (= 3 ~NP~0)) (= ~s~0 ~NP~0) (= ~compRegistered~0 0) (= ~SKIP1~0 3)) [2021-11-23 02:32:05,825 INFO L854 garLoopResultBuilder]: At program point L269(lines 172 270) the Hoare annotation is: (and (let ((.cse0 (not (= ~MPR1~0 3))) (.cse1 (<= 0 |ULTIMATE.start_main_~status~1#1|)) (.cse2 (not (= 3 ~NP~0))) (.cse3 (= ~SKIP1~0 3))) (or (and (= ~compRegistered~0 1) .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 (= ~compRegistered~0 0) .cse3))) (not (= ~pended~0 1))) [2021-11-23 02:32:05,825 INFO L854 garLoopResultBuilder]: At program point L171(lines 117 288) the Hoare annotation is: (and (not (= ~MPR1~0 3)) (not (= ~pended~0 1)) (<= 0 |ULTIMATE.start_main_~status~1#1|) (not (= 3 ~NP~0)) (= ~s~0 ~NP~0) (= ~compRegistered~0 0) (= ~SKIP1~0 3)) [2021-11-23 02:32:05,825 INFO L854 garLoopResultBuilder]: At program point L997(line 997) the Hoare annotation is: (and (not (= ~MPR1~0 3)) (not (= ~pended~0 1)) (<= 0 |ULTIMATE.start_main_~status~1#1|) (not (= 3 ~NP~0)) (= ~s~0 ~NP~0) (= ~compRegistered~0 0) (= ~SKIP1~0 3)) [2021-11-23 02:32:05,825 INFO L858 garLoopResultBuilder]: For program point L997-1(line 997) no Hoare annotation was computed. [2021-11-23 02:32:05,825 INFO L858 garLoopResultBuilder]: For program point L931(lines 931 974) no Hoare annotation was computed. [2021-11-23 02:32:05,825 INFO L854 garLoopResultBuilder]: At program point L734(line 734) the Hoare annotation is: false [2021-11-23 02:32:05,825 INFO L858 garLoopResultBuilder]: For program point L734-1(lines 730 736) no Hoare annotation was computed. [2021-11-23 02:32:05,826 INFO L858 garLoopResultBuilder]: For program point L239(lines 239 245) no Hoare annotation was computed. [2021-11-23 02:32:05,826 INFO L854 garLoopResultBuilder]: At program point L108(lines 108 291) the Hoare annotation is: (and (not (= ~pended~0 1)) (<= 0 |ULTIMATE.start_main_~status~1#1|) (= ~s~0 ~NP~0) (= ~NP~0 1) (<= (+ ~NP~0 4) ~MPR1~0) (= ~compRegistered~0 0) (= ~SKIP1~0 3)) [2021-11-23 02:32:05,826 INFO L858 garLoopResultBuilder]: For program point L934(lines 934 973) no Hoare annotation was computed. [2021-11-23 02:32:05,826 INFO L854 garLoopResultBuilder]: At program point L373(lines 373 408) the Hoare annotation is: (and (not (= ~MPR1~0 3)) (not (= ~pended~0 1)) (<= 0 |ULTIMATE.start_main_~status~1#1|) (not (= 3 ~NP~0)) (= ~s~0 ~NP~0) (= ~compRegistered~0 0) (= ~SKIP1~0 3)) [2021-11-23 02:32:05,826 INFO L854 garLoopResultBuilder]: At program point L935(lines 875 990) the Hoare annotation is: (and (not (= ~MPR1~0 3)) (not (= ~pended~0 1)) (<= 0 |ULTIMATE.start_main_~status~1#1|) (not (= 3 ~NP~0)) (= ~s~0 ~NP~0) (= ~compRegistered~0 0) (= ~SKIP1~0 3)) [2021-11-23 02:32:05,826 INFO L858 garLoopResultBuilder]: For program point L903(lines 903 982) no Hoare annotation was computed. [2021-11-23 02:32:05,826 INFO L854 garLoopResultBuilder]: At program point L441(lines 432 459) the Hoare annotation is: (and (let ((.cse0 (not (= ~MPR1~0 3))) (.cse1 (not (= 3 ~NP~0))) (.cse2 (= ~SKIP1~0 3))) (or (and (= ~compRegistered~0 1) .cse0 .cse1 .cse2) (and .cse0 .cse1 (= ~compRegistered~0 0) .cse2))) (not (= ~pended~0 1))) [2021-11-23 02:32:05,826 INFO L854 garLoopResultBuilder]: At program point L243(line 243) the Hoare annotation is: false [2021-11-23 02:32:05,827 INFO L858 garLoopResultBuilder]: For program point L243-1(lines 239 245) no Hoare annotation was computed. [2021-11-23 02:32:05,827 INFO L858 garLoopResultBuilder]: For program point L177(lines 177 189) no Hoare annotation was computed. [2021-11-23 02:32:05,830 INFO L854 garLoopResultBuilder]: At program point L111(lines 111 290) the Hoare annotation is: (and (not (= ~MPR1~0 3)) (not (= ~pended~0 1)) (<= 0 |ULTIMATE.start_main_~status~1#1|) (not (= 3 ~NP~0)) (= ~s~0 ~NP~0) (= ~compRegistered~0 0) (= ~SKIP1~0 3)) [2021-11-23 02:32:05,830 INFO L854 garLoopResultBuilder]: At program point L1003(line 1003) the Hoare annotation is: (and (not (= ~MPR1~0 3)) (not (= ~pended~0 1)) (<= 0 |ULTIMATE.start_main_~status~1#1|) (not (= 3 ~NP~0)) (= ~s~0 ~NP~0) (= ~compRegistered~0 0) (= ~SKIP1~0 3)) [2021-11-23 02:32:05,830 INFO L858 garLoopResultBuilder]: For program point L1003-1(line 1003) no Hoare annotation was computed. [2021-11-23 02:32:05,832 INFO L858 garLoopResultBuilder]: For program point L443(lines 443 447) no Hoare annotation was computed. [2021-11-23 02:32:05,832 INFO L854 garLoopResultBuilder]: At program point L179(line 179) the Hoare annotation is: false [2021-11-23 02:32:05,832 INFO L854 garLoopResultBuilder]: At program point L1005(lines 822 1007) the Hoare annotation is: (and (not (= ~MPR1~0 3)) (not (= ~pended~0 1)) (<= 0 |ULTIMATE.start_main_~status~1#1|) (not (= 3 ~NP~0)) (= ~compRegistered~0 0) (= ~SKIP1~0 3)) [2021-11-23 02:32:05,832 INFO L854 garLoopResultBuilder]: At program point L972(lines 867 1006) the Hoare annotation is: (and (not (= ~MPR1~0 3)) (not (= ~pended~0 1)) (<= 0 |ULTIMATE.start_main_~status~1#1|) (not (= 3 ~NP~0)) (= ~s~0 ~NP~0) (= ~compRegistered~0 0) (= ~SKIP1~0 3)) [2021-11-23 02:32:05,833 INFO L854 garLoopResultBuilder]: At program point L114(lines 114 289) the Hoare annotation is: (and (not (= ~MPR1~0 3)) (not (= ~pended~0 1)) (<= 0 |ULTIMATE.start_main_~status~1#1|) (not (= 3 ~NP~0)) (= ~s~0 ~NP~0) (= ~compRegistered~0 0) (= ~SKIP1~0 3)) [2021-11-23 02:32:05,833 INFO L854 garLoopResultBuilder]: At program point L445(line 445) the Hoare annotation is: false [2021-11-23 02:32:05,833 INFO L858 garLoopResultBuilder]: For program point L875(lines 875 990) no Hoare annotation was computed. [2021-11-23 02:32:05,833 INFO L858 garLoopResultBuilder]: For program point L809(lines 809 816) no Hoare annotation was computed. [2021-11-23 02:32:05,833 INFO L858 garLoopResultBuilder]: For program point L380(line 380) no Hoare annotation was computed. [2021-11-23 02:32:05,833 INFO L858 garLoopResultBuilder]: For program point L347(lines 347 349) no Hoare annotation was computed. [2021-11-23 02:32:05,834 INFO L858 garLoopResultBuilder]: For program point L182(lines 182 188) no Hoare annotation was computed. [2021-11-23 02:32:05,834 INFO L858 garLoopResultBuilder]: For program point L182-1(lines 177 189) no Hoare annotation was computed. [2021-11-23 02:32:05,834 INFO L854 garLoopResultBuilder]: At program point L249(line 249) the Hoare annotation is: (and (not (= ~MPR1~0 3)) (not (= ~pended~0 1)) (<= 0 |ULTIMATE.start_main_~status~1#1|) (not (= 3 ~NP~0)) (= ~SKIP1~0 ~s~0) (= ~compRegistered~0 0) (= ~SKIP1~0 3)) [2021-11-23 02:32:05,834 INFO L858 garLoopResultBuilder]: For program point L249-1(line 249) no Hoare annotation was computed. [2021-11-23 02:32:05,834 INFO L858 garLoopResultBuilder]: For program point L910(lines 910 980) no Hoare annotation was computed. [2021-11-23 02:32:05,834 INFO L858 garLoopResultBuilder]: For program point L415(lines 415 419) no Hoare annotation was computed. [2021-11-23 02:32:05,835 INFO L854 garLoopResultBuilder]: At program point L184(line 184) the Hoare annotation is: false [2021-11-23 02:32:05,835 INFO L858 garLoopResultBuilder]: For program point L581(lines 581 600) no Hoare annotation was computed. [2021-11-23 02:32:05,835 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-11-23 02:32:05,835 INFO L854 garLoopResultBuilder]: At program point L218(line 218) the Hoare annotation is: (and (= ~compRegistered~0 1) (not (= ~MPR1~0 3)) (not (= ~pended~0 1)) (<= 0 |ULTIMATE.start_main_~status~1#1|) (not (= 3 ~NP~0)) (= ~s~0 ~NP~0) (= ~SKIP1~0 3)) [2021-11-23 02:32:05,835 INFO L858 garLoopResultBuilder]: For program point L582(lines 582 587) no Hoare annotation was computed. [2021-11-23 02:32:05,835 INFO L854 garLoopResultBuilder]: At program point L814(line 814) the Hoare annotation is: false [2021-11-23 02:32:05,836 INFO L854 garLoopResultBuilder]: At program point L814-1(lines 793 818) the Hoare annotation is: (and (not (= ~MPR1~0 3)) (not (= ~pended~0 1)) (<= 0 |ULTIMATE.start_main_~status~1#1|) (not (= 3 ~NP~0)) (= ~compRegistered~0 0) (= ~SKIP1~0 3)) [2021-11-23 02:32:05,836 INFO L858 garLoopResultBuilder]: For program point L385(line 385) no Hoare annotation was computed. [2021-11-23 02:32:05,836 INFO L858 garLoopResultBuilder]: For program point L353(lines 353 412) no Hoare annotation was computed. [2021-11-23 02:32:05,836 INFO L854 garLoopResultBuilder]: At program point L354(lines 353 412) the Hoare annotation is: (and (not (= ~MPR1~0 3)) (not (= ~pended~0 1)) (<= 0 |ULTIMATE.start_main_~status~1#1|) (not (= 3 ~NP~0)) (= ~s~0 ~NP~0) (= ~compRegistered~0 0) (= ~SKIP1~0 3)) [2021-11-23 02:32:05,837 INFO L854 garLoopResultBuilder]: At program point L883(lines 883 988) the Hoare annotation is: (and (not (= ~MPR1~0 3)) (not (= ~pended~0 1)) (<= 0 |ULTIMATE.start_main_~status~1#1|) (not (= 3 ~NP~0)) (= ~s~0 ~NP~0) (= ~compRegistered~0 0) (= ~SKIP1~0 3)) [2021-11-23 02:32:05,837 INFO L854 garLoopResultBuilder]: At program point L421(lines 414 463) the Hoare annotation is: (and (let ((.cse0 (not (= ~MPR1~0 3))) (.cse1 (not (= 3 ~NP~0))) (.cse2 (= ~SKIP1~0 3))) (or (and (= ~compRegistered~0 1) .cse0 .cse1 .cse2) (and .cse0 .cse1 (= ~compRegistered~0 0) .cse2))) (not (= ~pended~0 1))) [2021-11-23 02:32:05,837 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 02:32:05,837 INFO L858 garLoopResultBuilder]: For program point L223(lines 223 229) no Hoare annotation was computed. [2021-11-23 02:32:05,838 INFO L858 garLoopResultBuilder]: For program point L917(lines 917 978) no Hoare annotation was computed. [2021-11-23 02:32:05,838 INFO L858 garLoopResultBuilder]: For program point L423(lines 423 427) no Hoare annotation was computed. [2021-11-23 02:32:05,838 INFO L854 garLoopResultBuilder]: At program point L258(line 258) the Hoare annotation is: false [2021-11-23 02:32:05,838 INFO L858 garLoopResultBuilder]: For program point L258-1(lines 254 260) no Hoare annotation was computed. [2021-11-23 02:32:05,839 INFO L858 garLoopResultBuilder]: For program point L754(lines 754 766) no Hoare annotation was computed. [2021-11-23 02:32:05,839 INFO L854 garLoopResultBuilder]: At program point L754-1(lines 754 766) the Hoare annotation is: (and (not (= ~MPR1~0 3)) (not (= ~pended~0 1)) (<= 0 |ULTIMATE.start_main_~status~1#1|) (not (= 3 ~NP~0)) (= ~SKIP1~0 ~s~0) (= ~compRegistered~0 0) (= ~SKIP1~0 3)) [2021-11-23 02:32:05,839 INFO L854 garLoopResultBuilder]: At program point L589(lines 581 600) the Hoare annotation is: false [2021-11-23 02:32:05,840 INFO L858 garLoopResultBuilder]: For program point L358(lines 358 411) no Hoare annotation was computed. [2021-11-23 02:32:05,840 INFO L854 garLoopResultBuilder]: At program point L359(lines 358 411) the Hoare annotation is: (and (not (= ~MPR1~0 3)) (not (= ~pended~0 1)) (<= 0 |ULTIMATE.start_main_~status~1#1|) (not (= 3 ~NP~0)) (= ~s~0 ~NP~0) (= ~compRegistered~0 0) (= ~SKIP1~0 3)) [2021-11-23 02:32:05,840 INFO L854 garLoopResultBuilder]: At program point L227(line 227) the Hoare annotation is: false [2021-11-23 02:32:05,840 INFO L854 garLoopResultBuilder]: At program point L194(lines 194 195) the Hoare annotation is: (and (= ~compRegistered~0 1) (not (= ~pended~0 1)) (<= 0 |ULTIMATE.start_main_~status~1#1|) (= ~s~0 ~NP~0) (= ~NP~0 1) (<= (+ ~NP~0 4) ~MPR1~0) (= ~SKIP1~0 3)) [2021-11-23 02:32:05,841 INFO L858 garLoopResultBuilder]: For program point L227-1(lines 223 229) no Hoare annotation was computed. [2021-11-23 02:32:05,841 INFO L858 garLoopResultBuilder]: For program point L194-1(lines 194 195) no Hoare annotation was computed. [2021-11-23 02:32:05,841 INFO L854 garLoopResultBuilder]: At program point L789(lines 753 820) the Hoare annotation is: (and (not (= ~MPR1~0 3)) (not (= ~pended~0 1)) (<= 0 |ULTIMATE.start_main_~status~1#1|) (not (= 3 ~NP~0)) (= ~SKIP1~0 ~s~0) (= ~compRegistered~0 0) (= ~SKIP1~0 3)) [2021-11-23 02:32:05,841 INFO L854 garLoopResultBuilder]: At program point L756(line 756) the Hoare annotation is: false [2021-11-23 02:32:05,841 INFO L858 garLoopResultBuilder]: For program point L756-1(line 756) no Hoare annotation was computed. [2021-11-23 02:32:05,841 INFO L854 garLoopResultBuilder]: At program point L724(lines 699 743) the Hoare annotation is: (and (not (= ~MPR1~0 3)) (not (= ~pended~0 1)) (<= 0 |ULTIMATE.start_main_~status~1#1|) (not (= 3 ~NP~0)) (= ~s~0 ~NP~0) (= ~compRegistered~0 0) (= ~SKIP1~0 3)) [2021-11-23 02:32:05,842 INFO L858 garLoopResultBuilder]: For program point L924(lines 924 976) no Hoare annotation was computed. [2021-11-23 02:32:05,842 INFO L854 garLoopResultBuilder]: At program point L891(lines 891 986) the Hoare annotation is: (and (not (= ~MPR1~0 3)) (not (= ~pended~0 1)) (<= 0 |ULTIMATE.start_main_~status~1#1|) (not (= 3 ~NP~0)) (= ~s~0 ~NP~0) (= ~compRegistered~0 0) (= ~SKIP1~0 3)) [2021-11-23 02:32:05,842 INFO L858 garLoopResultBuilder]: For program point L594(lines 594 598) no Hoare annotation was computed. [2021-11-23 02:32:05,842 INFO L854 garLoopResultBuilder]: At program point L594-1(lines 581 600) the Hoare annotation is: (and (= ~compRegistered~0 1) (not (= ~MPR1~0 3)) (not (= ~pended~0 1)) (<= 0 |ULTIMATE.start_main_~status~1#1|) (not (= 3 ~NP~0)) (= ~s~0 ~NP~0) (= ~SKIP1~0 3)) [2021-11-23 02:32:05,842 INFO L854 garLoopResultBuilder]: At program point L429(lines 422 462) the Hoare annotation is: (and (let ((.cse0 (not (= ~MPR1~0 3))) (.cse1 (not (= 3 ~NP~0))) (.cse2 (= ~SKIP1~0 3))) (or (and (= ~compRegistered~0 1) .cse0 .cse1 .cse2) (and .cse0 .cse1 (= ~compRegistered~0 0) .cse2))) (not (= ~pended~0 1))) [2021-11-23 02:32:05,843 INFO L854 garLoopResultBuilder]: At program point L363(lines 363 410) the Hoare annotation is: (and (not (= ~pended~0 1)) (<= 0 |ULTIMATE.start_main_~status~1#1|) (= ~s~0 ~NP~0) (= ~NP~0 1) (<= (+ ~NP~0 4) ~MPR1~0) (= ~compRegistered~0 0) (= ~SKIP1~0 3)) [2021-11-23 02:32:05,843 INFO L854 garLoopResultBuilder]: At program point L330(lines 330 413) the Hoare annotation is: (and (not (= ~pended~0 1)) (<= 0 |ULTIMATE.start_main_~status~1#1|) (= ~NP~0 1) (<= (+ ~NP~0 4) ~MPR1~0) (= ~compRegistered~0 0) (not (= ~MPR3~0 ~s~0)) (= ~SKIP1~0 3)) [2021-11-23 02:32:05,843 INFO L854 garLoopResultBuilder]: At program point L330-1(lines 324 465) the Hoare annotation is: (and (let ((.cse0 (not (= ~MPR1~0 3))) (.cse1 (not (= 3 ~NP~0))) (.cse2 (= ~SKIP1~0 3))) (or (and (= ~compRegistered~0 1) .cse0 .cse1 .cse2) (and .cse0 .cse1 (= ~compRegistered~0 0) .cse2))) (not (= ~pended~0 1))) [2021-11-23 02:32:05,843 INFO L854 garLoopResultBuilder]: At program point L264(lines 264 265) the Hoare annotation is: (and (not (= ~MPR1~0 3)) (not (= ~pended~0 1)) (<= 0 |ULTIMATE.start_main_~status~1#1|) (not (= 3 ~NP~0)) (= ~SKIP1~0 ~s~0) (= ~compRegistered~0 0) (= ~SKIP1~0 3)) [2021-11-23 02:32:05,843 INFO L858 garLoopResultBuilder]: For program point L264-1(lines 264 265) no Hoare annotation was computed. [2021-11-23 02:32:05,843 INFO L858 garLoopResultBuilder]: For program point L760(lines 760 764) no Hoare annotation was computed. [2021-11-23 02:32:05,844 INFO L858 garLoopResultBuilder]: For program point L430(lines 414 463) no Hoare annotation was computed. [2021-11-23 02:32:05,844 INFO L858 garLoopResultBuilder]: For program point L199(lines 199 205) no Hoare annotation was computed. [2021-11-23 02:32:05,844 INFO L858 garLoopResultBuilder]: For program point L199-2(lines 172 268) no Hoare annotation was computed. [2021-11-23 02:32:05,844 INFO L854 garLoopResultBuilder]: At program point L596(line 596) the Hoare annotation is: false [2021-11-23 02:32:05,844 INFO L861 garLoopResultBuilder]: At program point L464(lines 295 466) the Hoare annotation is: true [2021-11-23 02:32:05,845 INFO L858 garLoopResultBuilder]: For program point L431(lines 431 460) no Hoare annotation was computed. [2021-11-23 02:32:05,845 INFO L854 garLoopResultBuilder]: At program point L233(lines 233 234) the Hoare annotation is: (and (not (= ~MPR1~0 3)) (not (= ~pended~0 1)) (<= 0 |ULTIMATE.start_main_~status~1#1|) (not (= 3 ~NP~0)) (= ~SKIP1~0 ~s~0) (= ~compRegistered~0 0) (= ~SKIP1~0 3)) [2021-11-23 02:32:05,846 INFO L858 garLoopResultBuilder]: For program point L233-1(lines 233 234) no Hoare annotation was computed. [2021-11-23 02:32:05,846 INFO L854 garLoopResultBuilder]: At program point KbFilter_DispatchPassThroughENTRY(lines 665 688) the Hoare annotation is: (or (= 3 ~NP~0) (not (= ~SKIP1~0 3)) (not (= ~NP~0 |old(~s~0)|)) (not (= ~compRegistered~0 0)) (= ~pended~0 1) (= ~MPR1~0 3) (= ~s~0 ~NP~0)) [2021-11-23 02:32:05,846 INFO L854 garLoopResultBuilder]: At program point L684(line 684) the Hoare annotation is: (or (= 3 ~NP~0) (not (= ~SKIP1~0 3)) (not (= ~NP~0 |old(~s~0)|)) (not (= ~compRegistered~0 0)) (= ~pended~0 1) (= ~MPR1~0 3) (= ~SKIP1~0 ~s~0)) [2021-11-23 02:32:05,846 INFO L858 garLoopResultBuilder]: For program point L684-1(line 684) no Hoare annotation was computed. [2021-11-23 02:32:05,846 INFO L854 garLoopResultBuilder]: At program point L678(line 678) the Hoare annotation is: (or (= 3 ~NP~0) (= ~pended~0 1) (not (= ~compRegistered~0 0)) (not (= |old(~s~0)| ~NP~0)) (= 3 ~MPR1~0) (not (= ~SKIP1~0 3))) [2021-11-23 02:32:05,846 INFO L858 garLoopResultBuilder]: For program point L678-1(lines 674 680) no Hoare annotation was computed. [2021-11-23 02:32:05,847 INFO L858 garLoopResultBuilder]: For program point KbFilter_DispatchPassThroughEXIT(lines 665 688) no Hoare annotation was computed. [2021-11-23 02:32:05,847 INFO L858 garLoopResultBuilder]: For program point L674(lines 674 680) no Hoare annotation was computed. [2021-11-23 02:32:05,849 INFO L858 garLoopResultBuilder]: For program point L532(lines 532 549) no Hoare annotation was computed. [2021-11-23 02:32:05,850 INFO L854 garLoopResultBuilder]: At program point IofCallDriverENTRY(lines 481 553) the Hoare annotation is: (let ((.cse0 (not (= ~SKIP1~0 3))) (.cse1 (= ~pended~0 1))) (and (or (not (= ~NP~0 1)) .cse0 .cse1 (not (<= (+ ~NP~0 4) ~MPR1~0)) (= ~s~0 ~NP~0) (not (<= |old(~s~0)| 1)) (not (< 0 |old(~s~0)|)) (not (= ~compRegistered~0 1))) (or (= 3 ~NP~0) .cse0 (not (= ~compRegistered~0 0)) .cse1 (= ~MPR1~0 3) (not (= 3 |old(~s~0)|)) (= ~SKIP1~0 ~s~0)))) [2021-11-23 02:32:05,850 INFO L858 garLoopResultBuilder]: For program point L495(lines 495 499) no Hoare annotation was computed. [2021-11-23 02:32:05,850 INFO L854 garLoopResultBuilder]: At program point L524(lines 488 552) the Hoare annotation is: (let ((.cse0 (not (= ~SKIP1~0 3))) (.cse1 (= ~pended~0 1))) (and (or (= 3 ~NP~0) .cse0 (not (= ~compRegistered~0 0)) .cse1 (= ~MPR1~0 3) (not (= 3 |old(~s~0)|)) (= ~SKIP1~0 ~s~0)) (or (not (= ~NP~0 1)) (and (= ~setEventCalled~0 1) (= ~MPR1~0 ~s~0) (= (+ IofCallDriver_~__cil_tmp7~0 1073741802) 0)) .cse0 .cse1 (not (<= (+ ~NP~0 4) ~MPR1~0)) (not (<= |old(~s~0)| 1)) (not (< 0 |old(~s~0)|)) (not (= ~compRegistered~0 1))))) [2021-11-23 02:32:05,850 INFO L854 garLoopResultBuilder]: At program point L491(line 491) the Hoare annotation is: (let ((.cse0 (not (= ~SKIP1~0 3))) (.cse1 (= ~pended~0 1))) (and (or (not (= ~NP~0 1)) .cse0 .cse1 (not (<= (+ ~NP~0 4) ~MPR1~0)) (= ~s~0 ~NP~0) (not (<= |old(~s~0)| 1)) (not (< 0 |old(~s~0)|)) (not (= ~compRegistered~0 1))) (or (= 3 ~NP~0) .cse0 (not (= ~compRegistered~0 0)) .cse1 (= ~MPR1~0 3) (not (= 3 |old(~s~0)|))))) [2021-11-23 02:32:05,851 INFO L858 garLoopResultBuilder]: For program point L491-1(line 491) no Hoare annotation was computed. [2021-11-23 02:32:05,851 INFO L858 garLoopResultBuilder]: For program point L541(lines 541 548) no Hoare annotation was computed. [2021-11-23 02:32:05,851 INFO L858 garLoopResultBuilder]: For program point IofCallDriverEXIT(lines 481 553) no Hoare annotation was computed. [2021-11-23 02:32:05,851 INFO L854 garLoopResultBuilder]: At program point L546(line 546) the Hoare annotation is: (let ((.cse0 (not (= ~SKIP1~0 3))) (.cse1 (= ~pended~0 1))) (and (or (not (= ~NP~0 1)) .cse0 .cse1 (not (<= (+ ~NP~0 4) ~MPR1~0)) (not (<= |old(~s~0)| 1)) (not (< 0 |old(~s~0)|)) (not (= ~compRegistered~0 1))) (or (= 3 ~NP~0) .cse0 (not (= ~compRegistered~0 0)) .cse1 (= ~MPR1~0 3) (not (= 3 |old(~s~0)|))))) [2021-11-23 02:32:05,851 INFO L858 garLoopResultBuilder]: For program point L546-1(lines 528 550) no Hoare annotation was computed. [2021-11-23 02:32:05,852 INFO L854 garLoopResultBuilder]: At program point L497(line 497) the Hoare annotation is: (let ((.cse0 (not (= ~SKIP1~0 3))) (.cse1 (= ~pended~0 1))) (and (or (not (= ~NP~0 1)) .cse0 .cse1 (not (<= (+ ~NP~0 4) ~MPR1~0)) (not (<= |old(~s~0)| 1)) (and (= ~setEventCalled~0 1) (= ~s~0 ~NP~0) (= (+ IofCallDriver_~__cil_tmp7~0 1073741802) 0)) (not (< 0 |old(~s~0)|)) (not (= ~compRegistered~0 1))) (or (= 3 ~NP~0) .cse0 (not (= ~compRegistered~0 0)) .cse1 (= ~MPR1~0 3) (not (= 3 |old(~s~0)|))))) [2021-11-23 02:32:05,852 INFO L858 garLoopResultBuilder]: For program point L489(lines 489 501) no Hoare annotation was computed. [2021-11-23 02:32:05,852 INFO L854 garLoopResultBuilder]: At program point L489-1(lines 489 501) the Hoare annotation is: (let ((.cse0 (not (= ~SKIP1~0 3))) (.cse1 (= ~pended~0 1))) (and (or (= 3 ~NP~0) .cse0 (not (= ~compRegistered~0 0)) .cse1 (= ~MPR1~0 3) (not (= 3 |old(~s~0)|)) (= ~SKIP1~0 ~s~0)) (or (not (= ~NP~0 1)) (and (= ~setEventCalled~0 1) (= ~MPR1~0 ~s~0) (= (+ IofCallDriver_~__cil_tmp7~0 1073741802) 0)) .cse0 .cse1 (not (<= (+ ~NP~0 4) ~MPR1~0)) (not (<= |old(~s~0)| 1)) (not (< 0 |old(~s~0)|)) (not (= ~compRegistered~0 1))))) [2021-11-23 02:32:05,852 INFO L854 garLoopResultBuilder]: At program point L475(line 475) the Hoare annotation is: (or (not (= ~NP~0 1)) (not (= ~SKIP1~0 3)) (= ~pended~0 1) (not (<= (+ ~NP~0 4) ~MPR1~0)) (not (<= |old(~s~0)| 1)) (not (= ~setEventCalled~0 1)) (not (< 0 |old(~s~0)|)) (not (= ~compRegistered~0 1))) [2021-11-23 02:32:05,852 INFO L858 garLoopResultBuilder]: For program point L475-1(lines 467 480) no Hoare annotation was computed. [2021-11-23 02:32:05,853 INFO L854 garLoopResultBuilder]: At program point stubMoreProcessingRequiredENTRY(lines 467 480) the Hoare annotation is: (or (not (= ~NP~0 1)) (not (= ~SKIP1~0 3)) (= ~pended~0 1) (not (<= (+ ~NP~0 4) ~MPR1~0)) (= ~s~0 ~NP~0) (not (<= |old(~s~0)| 1)) (not (= ~setEventCalled~0 1)) (not (< 0 |old(~s~0)|)) (not (= ~compRegistered~0 1))) [2021-11-23 02:32:05,853 INFO L858 garLoopResultBuilder]: For program point stubMoreProcessingRequiredEXIT(lines 467 480) no Hoare annotation was computed. [2021-11-23 02:32:05,858 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:32:05,862 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 02:32:05,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:32:05 BoogieIcfgContainer [2021-11-23 02:32:05,896 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 02:32:05,896 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 02:32:05,896 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 02:32:05,897 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 02:32:05,897 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:32:00" (3/4) ... [2021-11-23 02:32:05,900 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 02:32:05,906 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure KbFilter_Complete [2021-11-23 02:32:05,907 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure KbFilter_CreateClose [2021-11-23 02:32:05,907 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure IofCompleteRequest [2021-11-23 02:32:05,907 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure errorFn [2021-11-23 02:32:05,907 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure KbFilter_DispatchPassThrough [2021-11-23 02:32:05,907 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure IofCallDriver [2021-11-23 02:32:05,908 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure stubMoreProcessingRequired [2021-11-23 02:32:05,926 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 86 nodes and edges [2021-11-23 02:32:05,928 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-11-23 02:32:05,930 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-23 02:32:05,932 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 02:32:05,960 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((3 == NP || !(SKIP1 == 3)) || !(compRegistered == 0)) || pended == 1) || MPR1 == 3) || !(3 == \old(s))) || SKIP1 == s) && (((((((!(NP == 1) || ((setEventCalled == 1 && MPR1 == s) && __cil_tmp7 + 1073741802 == 0)) || !(SKIP1 == 3)) || pended == 1) || !(NP + 4 <= MPR1)) || !(\old(s) <= 1)) || !(0 < \old(s))) || !(compRegistered == 1)) [2021-11-23 02:32:05,962 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((3 == NP || !(SKIP1 == 3)) || !(compRegistered == 0)) || pended == 1) || MPR1 == 3) || !(3 == \old(s))) || SKIP1 == s) && (((((((!(NP == 1) || ((setEventCalled == 1 && MPR1 == s) && __cil_tmp7 + 1073741802 == 0)) || !(SKIP1 == 3)) || pended == 1) || !(NP + 4 <= MPR1)) || !(\old(s) <= 1)) || !(0 < \old(s))) || !(compRegistered == 1)) [2021-11-23 02:32:05,965 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((3 == NP || !(SKIP1 == 3)) || !(NP == \old(s))) || !(compRegistered == 0)) || pended == 1) || MPR1 == 3) || s == NP [2021-11-23 02:32:05,965 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((3 == NP || !(SKIP1 == 3)) || !(NP == \old(s))) || !(compRegistered == 0)) || pended == 1) || MPR1 == 3) || s == NP [2021-11-23 02:32:06,048 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c01b47-e856-4778-b5e5-c5c9db019818/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 02:32:06,048 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 02:32:06,049 INFO L158 Benchmark]: Toolchain (without parser) took 7530.03ms. Allocated memory was 94.4MB in the beginning and 121.6MB in the end (delta: 27.3MB). Free memory was 54.2MB in the beginning and 67.0MB in the end (delta: -12.8MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2021-11-23 02:32:06,049 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 94.4MB. Free memory was 71.5MB in the beginning and 71.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:32:06,050 INFO L158 Benchmark]: CACSL2BoogieTranslator took 552.45ms. Allocated memory was 94.4MB in the beginning and 121.6MB in the end (delta: 27.3MB). Free memory was 54.0MB in the beginning and 87.4MB in the end (delta: -33.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 02:32:06,050 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.84ms. Allocated memory is still 121.6MB. Free memory was 87.4MB in the beginning and 84.0MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 02:32:06,051 INFO L158 Benchmark]: Boogie Preprocessor took 54.83ms. Allocated memory is still 121.6MB. Free memory was 84.0MB in the beginning and 81.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:32:06,051 INFO L158 Benchmark]: RCFGBuilder took 1374.15ms. Allocated memory is still 121.6MB. Free memory was 81.3MB in the beginning and 84.9MB in the end (delta: -3.6MB). Peak memory consumption was 53.6MB. Max. memory is 16.1GB. [2021-11-23 02:32:06,051 INFO L158 Benchmark]: TraceAbstraction took 5293.95ms. Allocated memory is still 121.6MB. Free memory was 84.9MB in the beginning and 82.7MB in the end (delta: 2.1MB). Peak memory consumption was 56.5MB. Max. memory is 16.1GB. [2021-11-23 02:32:06,052 INFO L158 Benchmark]: Witness Printer took 152.08ms. Allocated memory is still 121.6MB. Free memory was 82.7MB in the beginning and 67.0MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 02:32:06,054 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 94.4MB. Free memory was 71.5MB in the beginning and 71.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 552.45ms. Allocated memory was 94.4MB in the beginning and 121.6MB in the end (delta: 27.3MB). Free memory was 54.0MB in the beginning and 87.4MB in the end (delta: -33.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.84ms. Allocated memory is still 121.6MB. Free memory was 87.4MB in the beginning and 84.0MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.83ms. Allocated memory is still 121.6MB. Free memory was 84.0MB in the beginning and 81.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1374.15ms. Allocated memory is still 121.6MB. Free memory was 81.3MB in the beginning and 84.9MB in the end (delta: -3.6MB). Peak memory consumption was 53.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5293.95ms. Allocated memory is still 121.6MB. Free memory was 84.9MB in the beginning and 82.7MB in the end (delta: 2.1MB). Peak memory consumption was 56.5MB. Max. memory is 16.1GB. * Witness Printer took 152.08ms. Allocated memory is still 121.6MB. Free memory was 82.7MB in the beginning and 67.0MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. 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: 1013]: 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 8 procedures, 136 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.2s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1102 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1091 mSDsluCounter, 2085 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 993 mSDsCounter, 89 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 944 IncrementalHoareTripleChecker+Invalid, 1033 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 89 mSolverCounterUnsat, 1279 mSDtfsCounter, 944 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=155occurred in iteration=2, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 15 MinimizatonAttempts, 42 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 65 LocationsWithAnnotation, 203 PreInvPairs, 243 NumberOfFragments, 1580 HoareAnnotationTreeSize, 203 FomulaSimplifications, 50 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 65 FomulaSimplificationsInter, 848 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 371 NumberOfCodeBlocks, 371 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 356 ConstructedInterpolants, 0 QuantifiedInterpolants, 836 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 0/0 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: 618]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 753]: Loop Invariant Derived loop invariant: (((((!(MPR1 == 3) && !(pended == 1)) && 0 <= status) && !(3 == NP)) && SKIP1 == s) && compRegistered == 0) && SKIP1 == 3 - InvariantResult [Line: 883]: Loop Invariant Derived loop invariant: (((((!(MPR1 == 3) && !(pended == 1)) && 0 <= status) && !(3 == NP)) && s == NP) && compRegistered == 0) && SKIP1 == 3 - InvariantResult [Line: 875]: Loop Invariant Derived loop invariant: (((((!(MPR1 == 3) && !(pended == 1)) && 0 <= status) && !(3 == NP)) && s == NP) && compRegistered == 0) && SKIP1 == 3 - InvariantResult [Line: 891]: Loop Invariant Derived loop invariant: (((((!(MPR1 == 3) && !(pended == 1)) && 0 <= status) && !(3 == NP)) && s == NP) && compRegistered == 0) && SKIP1 == 3 - InvariantResult [Line: 641]: Loop Invariant Derived loop invariant: (((((3 == NP || !(SKIP1 == 3)) || !(NP == \old(s))) || !(compRegistered == 0)) || pended == 1) || MPR1 == 3) || s == NP - InvariantResult [Line: 581]: Loop Invariant Derived loop invariant: (((((compRegistered == 1 && !(MPR1 == 3)) && !(pended == 1)) && 0 <= status) && !(3 == NP)) && s == NP) && SKIP1 == 3 - InvariantResult [Line: 295]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 368]: Loop Invariant Derived loop invariant: (((((!(MPR1 == 3) && !(pended == 1)) && 0 <= status) && !(3 == NP)) && s == NP) && compRegistered == 0) && SKIP1 == 3 - InvariantResult [Line: 117]: Loop Invariant Derived loop invariant: (((((!(MPR1 == 3) && !(pended == 1)) && 0 <= status) && !(3 == NP)) && s == NP) && compRegistered == 0) && SKIP1 == 3 - InvariantResult [Line: 324]: Loop Invariant Derived loop invariant: ((((compRegistered == 1 && !(MPR1 == 3)) && !(3 == NP)) && SKIP1 == 3) || (((!(MPR1 == 3) && !(3 == NP)) && compRegistered == 0) && SKIP1 == 3)) && !(pended == 1) - InvariantResult [Line: 581]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 793]: Loop Invariant Derived loop invariant: ((((!(MPR1 == 3) && !(pended == 1)) && 0 <= status) && !(3 == NP)) && compRegistered == 0) && SKIP1 == 3 - InvariantResult [Line: 422]: Loop Invariant Derived loop invariant: ((((compRegistered == 1 && !(MPR1 == 3)) && !(3 == NP)) && SKIP1 == 3) || (((!(MPR1 == 3) && !(3 == NP)) && compRegistered == 0) && SKIP1 == 3)) && !(pended == 1) - InvariantResult [Line: 488]: Loop Invariant Derived loop invariant: ((((((3 == NP || !(SKIP1 == 3)) || !(compRegistered == 0)) || pended == 1) || MPR1 == 3) || !(3 == \old(s))) || SKIP1 == s) && (((((((!(NP == 1) || ((setEventCalled == 1 && MPR1 == s) && __cil_tmp7 + 1073741802 == 0)) || !(SKIP1 == 3)) || pended == 1) || !(NP + 4 <= MPR1)) || !(\old(s) <= 1)) || !(0 < \old(s))) || !(compRegistered == 1)) - InvariantResult [Line: 754]: Loop Invariant Derived loop invariant: (((((!(MPR1 == 3) && !(pended == 1)) && 0 <= status) && !(3 == NP)) && SKIP1 == s) && compRegistered == 0) && SKIP1 == 3 - InvariantResult [Line: 867]: Loop Invariant Derived loop invariant: (((((!(MPR1 == 3) && !(pended == 1)) && 0 <= status) && !(3 == NP)) && s == NP) && compRegistered == 0) && SKIP1 == 3 - InvariantResult [Line: 330]: Loop Invariant Derived loop invariant: (((((!(pended == 1) && 0 <= status) && NP == 1) && NP + 4 <= MPR1) && compRegistered == 0) && !(MPR3 == s)) && SKIP1 == 3 - InvariantResult [Line: 373]: Loop Invariant Derived loop invariant: (((((!(MPR1 == 3) && !(pended == 1)) && 0 <= status) && !(3 == NP)) && s == NP) && compRegistered == 0) && SKIP1 == 3 - InvariantResult [Line: 822]: Loop Invariant Derived loop invariant: ((((!(MPR1 == 3) && !(pended == 1)) && 0 <= status) && !(3 == NP)) && compRegistered == 0) && SKIP1 == 3 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 114]: Loop Invariant Derived loop invariant: (((((!(MPR1 == 3) && !(pended == 1)) && 0 <= status) && !(3 == NP)) && s == NP) && compRegistered == 0) && SKIP1 == 3 - InvariantResult [Line: 699]: Loop Invariant Derived loop invariant: (((((!(MPR1 == 3) && !(pended == 1)) && 0 <= status) && !(3 == NP)) && s == NP) && compRegistered == 0) && SKIP1 == 3 - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: (((((!(MPR1 == 3) && !(pended == 1)) && 0 <= status) && !(3 == NP)) && s == NP) && compRegistered == 0) && SKIP1 == 3 - InvariantResult [Line: 432]: Loop Invariant Derived loop invariant: ((((compRegistered == 1 && !(MPR1 == 3)) && !(3 == NP)) && SKIP1 == 3) || (((!(MPR1 == 3) && !(3 == NP)) && compRegistered == 0) && SKIP1 == 3)) && !(pended == 1) - InvariantResult [Line: 108]: Loop Invariant Derived loop invariant: (((((!(pended == 1) && 0 <= status) && s == NP) && NP == 1) && NP + 4 <= MPR1) && compRegistered == 0) && SKIP1 == 3 - InvariantResult [Line: 489]: Loop Invariant Derived loop invariant: ((((((3 == NP || !(SKIP1 == 3)) || !(compRegistered == 0)) || pended == 1) || MPR1 == 3) || !(3 == \old(s))) || SKIP1 == s) && (((((((!(NP == 1) || ((setEventCalled == 1 && MPR1 == s) && __cil_tmp7 + 1073741802 == 0)) || !(SKIP1 == 3)) || pended == 1) || !(NP + 4 <= MPR1)) || !(\old(s) <= 1)) || !(0 < \old(s))) || !(compRegistered == 1)) - InvariantResult [Line: 353]: Loop Invariant Derived loop invariant: (((((!(MPR1 == 3) && !(pended == 1)) && 0 <= status) && !(3 == NP)) && s == NP) && compRegistered == 0) && SKIP1 == 3 - InvariantResult [Line: 638]: Loop Invariant Derived loop invariant: (((((3 == NP || !(SKIP1 == 3)) || !(NP == \old(s))) || !(compRegistered == 0)) || pended == 1) || MPR1 == 3) || s == NP - InvariantResult [Line: 358]: Loop Invariant Derived loop invariant: (((((!(MPR1 == 3) && !(pended == 1)) && 0 <= status) && !(3 == NP)) && s == NP) && compRegistered == 0) && SKIP1 == 3 - InvariantResult [Line: 414]: Loop Invariant Derived loop invariant: ((((compRegistered == 1 && !(MPR1 == 3)) && !(3 == NP)) && SKIP1 == 3) || (((!(MPR1 == 3) && !(3 == NP)) && compRegistered == 0) && SKIP1 == 3)) && !(pended == 1) - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: (((((compRegistered == 1 && !(MPR1 == 3)) && 0 <= status) && !(3 == NP)) && SKIP1 == 3) || ((((!(MPR1 == 3) && 0 <= status) && !(3 == NP)) && compRegistered == 0) && SKIP1 == 3)) && !(pended == 1) - InvariantResult [Line: 363]: Loop Invariant Derived loop invariant: (((((!(pended == 1) && 0 <= status) && s == NP) && NP == 1) && NP + 4 <= MPR1) && compRegistered == 0) && SKIP1 == 3 RESULT: Ultimate proved your program to be correct! [2021-11-23 02:32:06,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c01b47-e856-4778-b5e5-c5c9db019818/bin/utaipan-EQgc7hIp5V/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