./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-commit-tester/m0_sound-oss-opl3-ko--111_1a--42f9f8d-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_50b10074-24d0-42cc-832f-5e9f9aa2fc15/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b10074-24d0-42cc-832f-5e9f9aa2fc15/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_50b10074-24d0-42cc-832f-5e9f9aa2fc15/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b10074-24d0-42cc-832f-5e9f9aa2fc15/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-commit-tester/m0_sound-oss-opl3-ko--111_1a--42f9f8d-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b10074-24d0-42cc-832f-5e9f9aa2fc15/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b10074-24d0-42cc-832f-5e9f9aa2fc15/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 64bit --witnessprinter.graph.data.programhash 4fa8f711706c6827dfd46bfbbe473b8c8a578e07b4d272918901355226a20b94 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:00:39,924 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:00:39,927 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:00:39,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:00:39,982 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:00:39,987 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:00:39,989 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:00:39,993 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:00:39,996 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:00:40,001 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:00:40,003 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:00:40,004 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:00:40,005 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:00:40,008 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:00:40,010 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:00:40,018 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:00:40,020 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:00:40,021 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:00:40,024 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:00:40,032 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:00:40,034 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:00:40,036 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:00:40,040 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:00:40,041 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:00:40,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:00:40,050 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:00:40,051 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:00:40,053 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:00:40,054 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:00:40,055 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:00:40,056 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:00:40,057 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:00:40,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:00:40,061 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:00:40,063 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:00:40,063 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:00:40,064 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:00:40,064 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:00:40,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:00:40,066 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:00:40,067 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:00:40,068 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b10074-24d0-42cc-832f-5e9f9aa2fc15/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 02:00:40,097 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:00:40,097 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:00:40,098 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:00:40,098 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:00:40,099 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:00:40,099 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:00:40,099 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:00:40,100 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:00:40,100 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:00:40,100 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:00:40,100 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:00:40,100 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:00:40,101 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:00:40,101 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:00:40,101 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:00:40,101 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:00:40,102 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:00:40,102 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:00:40,103 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:00:40,103 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:00:40,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:00:40,104 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:00:40,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:00:40,104 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:00:40,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:00:40,105 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:00:40,105 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:00:40,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:00:40,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:00:40,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:00:40,106 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:00:40,106 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:00:40,107 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:00:40,107 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:00:40,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:00:40,107 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:00:40,107 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:00:40,108 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:00:40,108 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_50b10074-24d0-42cc-832f-5e9f9aa2fc15/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b10074-24d0-42cc-832f-5e9f9aa2fc15/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fa8f711706c6827dfd46bfbbe473b8c8a578e07b4d272918901355226a20b94 [2021-11-23 02:00:40,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:00:40,434 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:00:40,437 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:00:40,438 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:00:40,439 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:00:40,440 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b10074-24d0-42cc-832f-5e9f9aa2fc15/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-commit-tester/m0_sound-oss-opl3-ko--111_1a--42f9f8d-1.i [2021-11-23 02:00:40,548 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b10074-24d0-42cc-832f-5e9f9aa2fc15/bin/utaipan-EQgc7hIp5V/data/a8e49aff1/4e37fc9af9914bbeb90622156c3f2395/FLAGdd05c7f93 [2021-11-23 02:00:41,360 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:00:41,362 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b10074-24d0-42cc-832f-5e9f9aa2fc15/sv-benchmarks/c/ldv-commit-tester/m0_sound-oss-opl3-ko--111_1a--42f9f8d-1.i [2021-11-23 02:00:41,410 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b10074-24d0-42cc-832f-5e9f9aa2fc15/bin/utaipan-EQgc7hIp5V/data/a8e49aff1/4e37fc9af9914bbeb90622156c3f2395/FLAGdd05c7f93 [2021-11-23 02:00:41,900 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b10074-24d0-42cc-832f-5e9f9aa2fc15/bin/utaipan-EQgc7hIp5V/data/a8e49aff1/4e37fc9af9914bbeb90622156c3f2395 [2021-11-23 02:00:41,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:00:41,904 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:00:41,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:00:41,908 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:00:41,912 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:00:41,914 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:00:41" (1/1) ... [2021-11-23 02:00:41,915 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50c73740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:00:41, skipping insertion in model container [2021-11-23 02:00:41,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:00:41" (1/1) ... [2021-11-23 02:00:41,924 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:00:42,074 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:00:42,980 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_50b10074-24d0-42cc-832f-5e9f9aa2fc15/sv-benchmarks/c/ldv-commit-tester/m0_sound-oss-opl3-ko--111_1a--42f9f8d-1.i[322047,322060] [2021-11-23 02:00:43,001 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:00:43,158 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:00:43,483 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_50b10074-24d0-42cc-832f-5e9f9aa2fc15/sv-benchmarks/c/ldv-commit-tester/m0_sound-oss-opl3-ko--111_1a--42f9f8d-1.i[322047,322060] [2021-11-23 02:00:43,490 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:00:43,638 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:00:43,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:00:43 WrapperNode [2021-11-23 02:00:43,638 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:00:43,640 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:00:43,640 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:00:43,640 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:00:43,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:00:43" (1/1) ... [2021-11-23 02:00:43,734 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:00:43" (1/1) ... [2021-11-23 02:00:43,933 INFO L137 Inliner]: procedures = 101, calls = 3226, calls flagged for inlining = 40, calls inlined = 39, statements flattened = 4167 [2021-11-23 02:00:43,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:00:43,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:00:43,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:00:43,935 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:00:43,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:00:43" (1/1) ... [2021-11-23 02:00:43,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:00:43" (1/1) ... [2021-11-23 02:00:43,971 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:00:43" (1/1) ... [2021-11-23 02:00:43,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:00:43" (1/1) ... [2021-11-23 02:00:44,092 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:00:43" (1/1) ... [2021-11-23 02:00:44,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:00:43" (1/1) ... [2021-11-23 02:00:44,154 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:00:43" (1/1) ... [2021-11-23 02:00:44,174 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:00:44,175 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:00:44,175 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:00:44,176 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:00:44,177 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:00:43" (1/1) ... [2021-11-23 02:00:44,184 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:00:44,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b10074-24d0-42cc-832f-5e9f9aa2fc15/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:00:44,208 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b10074-24d0-42cc-832f-5e9f9aa2fc15/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:00:44,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b10074-24d0-42cc-832f-5e9f9aa2fc15/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:00:44,243 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_set_instr [2021-11-23 02:00:44,243 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_set_instr [2021-11-23 02:00:44,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 02:00:44,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-23 02:00:44,243 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-23 02:00:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_reset [2021-11-23 02:00:44,244 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_reset [2021-11-23 02:00:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 02:00:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 02:00:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:00:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_command [2021-11-23 02:00:44,244 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_command [2021-11-23 02:00:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 02:00:44,245 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 02:00:44,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 02:00:44,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 02:00:44,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_len [2021-11-23 02:00:44,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_len [2021-11-23 02:00:44,245 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-11-23 02:00:44,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-11-23 02:00:44,245 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 02:00:44,246 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 02:00:44,246 INFO L130 BoogieDeclarations]: Found specification of procedure set_voice_volume [2021-11-23 02:00:44,246 INFO L138 BoogieDeclarations]: Found implementation of procedure set_voice_volume [2021-11-23 02:00:44,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:00:44,246 INFO L130 BoogieDeclarations]: Found specification of procedure freq_to_fnum [2021-11-23 02:00:44,246 INFO L138 BoogieDeclarations]: Found implementation of procedure freq_to_fnum [2021-11-23 02:00:44,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__copy_from_user_1 [2021-11-23 02:00:44,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__copy_from_user_1 [2021-11-23 02:00:44,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 02:00:44,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 02:00:44,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:00:44,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:00:44,247 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_kill_note [2021-11-23 02:00:44,247 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_kill_note [2021-11-23 02:00:44,247 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-23 02:00:44,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-23 02:00:44,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:00:44,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:00:44,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:00:44,248 INFO L130 BoogieDeclarations]: Found specification of procedure compute_finetune [2021-11-23 02:00:44,248 INFO L138 BoogieDeclarations]: Found implementation of procedure compute_finetune [2021-11-23 02:00:44,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:00:44,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:00:44,249 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-23 02:00:44,249 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-23 02:00:44,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_copy_from_user_7 [2021-11-23 02:00:44,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_copy_from_user_7 [2021-11-23 02:00:44,249 INFO L130 BoogieDeclarations]: Found specification of procedure calc_vol [2021-11-23 02:00:44,249 INFO L138 BoogieDeclarations]: Found implementation of procedure calc_vol [2021-11-23 02:00:44,249 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-23 02:00:44,250 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-23 02:00:44,250 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-23 02:00:44,250 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-23 02:00:44,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:00:44,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2021-11-23 02:00:44,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2021-11-23 02:00:44,250 INFO L130 BoogieDeclarations]: Found specification of procedure store_instr [2021-11-23 02:00:44,250 INFO L138 BoogieDeclarations]: Found implementation of procedure store_instr [2021-11-23 02:00:44,251 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-11-23 02:00:44,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-11-23 02:00:44,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 02:00:44,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:00:44,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:00:44,251 INFO L130 BoogieDeclarations]: Found specification of procedure bend_pitch [2021-11-23 02:00:44,251 INFO L138 BoogieDeclarations]: Found implementation of procedure bend_pitch [2021-11-23 02:00:44,701 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:00:44,704 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:00:50,281 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:00:50,886 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:00:50,886 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 02:00:50,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:00:50 BoogieIcfgContainer [2021-11-23 02:00:50,892 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:00:50,896 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:00:50,896 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:00:50,900 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:00:50,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:00:41" (1/3) ... [2021-11-23 02:00:50,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5673f642 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:00:50, skipping insertion in model container [2021-11-23 02:00:50,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:00:43" (2/3) ... [2021-11-23 02:00:50,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5673f642 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:00:50, skipping insertion in model container [2021-11-23 02:00:50,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:00:50" (3/3) ... [2021-11-23 02:00:50,910 INFO L111 eAbstractionObserver]: Analyzing ICFG m0_sound-oss-opl3-ko--111_1a--42f9f8d-1.i [2021-11-23 02:00:50,919 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:00:50,920 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:00:50,989 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:00:50,998 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 02:00:50,998 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:00:51,046 INFO L276 IsEmpty]: Start isEmpty. Operand has 486 states, 307 states have (on average 1.4006514657980456) internal successors, (430), 321 states have internal predecessors, (430), 152 states have call successors, (152), 25 states have call predecessors, (152), 25 states have return successors, (152), 148 states have call predecessors, (152), 152 states have call successors, (152) [2021-11-23 02:00:51,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 02:00:51,064 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:00:51,065 INFO L514 BasicCegarLoop]: trace histogram [2, 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 02:00:51,065 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:00:51,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:00:51,072 INFO L85 PathProgramCache]: Analyzing trace with hash -953461904, now seen corresponding path program 1 times [2021-11-23 02:00:51,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:00:51,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264318858] [2021-11-23 02:00:51,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:00:51,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:00:51,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:00:51,982 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 02:00:51,982 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:00:51,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264318858] [2021-11-23 02:00:51,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264318858] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:00:51,984 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:00:51,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 02:00:51,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655806352] [2021-11-23 02:00:51,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:00:51,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:00:51,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:00:52,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:00:52,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:00:52,021 INFO L87 Difference]: Start difference. First operand has 486 states, 307 states have (on average 1.4006514657980456) internal successors, (430), 321 states have internal predecessors, (430), 152 states have call successors, (152), 25 states have call predecessors, (152), 25 states have return successors, (152), 148 states have call predecessors, (152), 152 states have call successors, (152) Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:00:53,936 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:00:55,968 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:00:57,992 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:01:00,017 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:01:02,044 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:01:03,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:01:03,258 INFO L93 Difference]: Finished difference Result 987 states and 1500 transitions. [2021-11-23 02:01:03,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 02:01:03,263 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2021-11-23 02:01:03,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:01:03,291 INFO L225 Difference]: With dead ends: 987 [2021-11-23 02:01:03,291 INFO L226 Difference]: Without dead ends: 496 [2021-11-23 02:01:03,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:01:03,312 INFO L933 BasicCegarLoop]: 651 mSDtfsCounter, 31 mSDsluCounter, 2923 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 20 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 3228 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:01:03,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 3228 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 467 Invalid, 4 Unknown, 0 Unchecked, 11.1s Time] [2021-11-23 02:01:03,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2021-11-23 02:01:03,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 496. [2021-11-23 02:01:03,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 312 states have (on average 1.3717948717948718) internal successors, (428), 325 states have internal predecessors, (428), 156 states have call successors, (156), 27 states have call predecessors, (156), 27 states have return successors, (156), 152 states have call predecessors, (156), 156 states have call successors, (156) [2021-11-23 02:01:03,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 740 transitions. [2021-11-23 02:01:03,487 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 740 transitions. Word has length 25 [2021-11-23 02:01:03,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:01:03,487 INFO L470 AbstractCegarLoop]: Abstraction has 496 states and 740 transitions. [2021-11-23 02:01:03,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:01:03,488 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 740 transitions. [2021-11-23 02:01:03,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 02:01:03,499 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:01:03,499 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:01:03,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:01:03,500 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:01:03,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:01:03,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1971791284, now seen corresponding path program 1 times [2021-11-23 02:01:03,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:01:03,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308060423] [2021-11-23 02:01:03,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:01:03,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:01:04,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 02:01:04,202 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 02:01:04,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 02:01:04,913 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-23 02:01:04,914 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 02:01:04,915 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 02:01:04,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:01:04,922 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-23 02:01:04,925 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 02:01:05,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:01:05 BoogieIcfgContainer [2021-11-23 02:01:05,050 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 02:01:05,051 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 02:01:05,051 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 02:01:05,051 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 02:01:05,052 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:00:50" (3/4) ... [2021-11-23 02:01:05,054 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 02:01:05,305 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b10074-24d0-42cc-832f-5e9f9aa2fc15/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 02:01:05,305 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 02:01:05,306 INFO L158 Benchmark]: Toolchain (without parser) took 23401.24ms. Allocated memory was 92.3MB in the beginning and 381.7MB in the end (delta: 289.4MB). Free memory was 51.9MB in the beginning and 184.5MB in the end (delta: -132.5MB). Peak memory consumption was 156.9MB. Max. memory is 16.1GB. [2021-11-23 02:01:05,306 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 92.3MB. Free memory is still 46.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:01:05,306 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1730.70ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 51.8MB in the beginning and 74.3MB in the end (delta: -22.5MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. [2021-11-23 02:01:05,307 INFO L158 Benchmark]: Boogie Procedure Inliner took 294.47ms. Allocated memory was 134.2MB in the beginning and 203.4MB in the end (delta: 69.2MB). Free memory was 74.3MB in the beginning and 137.9MB in the end (delta: -63.6MB). Peak memory consumption was 36.1MB. Max. memory is 16.1GB. [2021-11-23 02:01:05,307 INFO L158 Benchmark]: Boogie Preprocessor took 239.90ms. Allocated memory is still 203.4MB. Free memory was 137.9MB in the beginning and 112.8MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-11-23 02:01:05,307 INFO L158 Benchmark]: RCFGBuilder took 6716.73ms. Allocated memory was 203.4MB in the beginning and 381.7MB in the end (delta: 178.3MB). Free memory was 112.8MB in the beginning and 209.6MB in the end (delta: -96.9MB). Peak memory consumption was 143.4MB. Max. memory is 16.1GB. [2021-11-23 02:01:05,308 INFO L158 Benchmark]: TraceAbstraction took 14154.03ms. Allocated memory is still 381.7MB. Free memory was 209.6MB in the beginning and 230.2MB in the end (delta: -20.5MB). Peak memory consumption was 118.5MB. Max. memory is 16.1GB. [2021-11-23 02:01:05,308 INFO L158 Benchmark]: Witness Printer took 254.24ms. Allocated memory is still 381.7MB. Free memory was 230.2MB in the beginning and 184.5MB in the end (delta: 45.7MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2021-11-23 02:01:05,311 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 92.3MB. Free memory is still 46.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1730.70ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 51.8MB in the beginning and 74.3MB in the end (delta: -22.5MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 294.47ms. Allocated memory was 134.2MB in the beginning and 203.4MB in the end (delta: 69.2MB). Free memory was 74.3MB in the beginning and 137.9MB in the end (delta: -63.6MB). Peak memory consumption was 36.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 239.90ms. Allocated memory is still 203.4MB. Free memory was 137.9MB in the beginning and 112.8MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * RCFGBuilder took 6716.73ms. Allocated memory was 203.4MB in the beginning and 381.7MB in the end (delta: 178.3MB). Free memory was 112.8MB in the beginning and 209.6MB in the end (delta: -96.9MB). Peak memory consumption was 143.4MB. Max. memory is 16.1GB. * TraceAbstraction took 14154.03ms. Allocated memory is still 381.7MB. Free memory was 209.6MB in the beginning and 230.2MB in the end (delta: -20.5MB). Peak memory consumption was 118.5MB. Max. memory is 16.1GB. * Witness Printer took 254.24ms. Allocated memory is still 381.7MB. Free memory was 230.2MB in the beginning and 184.5MB in the end (delta: 45.7MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 - CounterExampleResult [Line: 6170]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L2600-L2618] static struct physical_voice_info pv_map[18U] = { {0U, 2U, 0U, {0U, 3U, 8U, 11U}}, {1U, 2U, 0U, {1U, 4U, 9U, 12U}}, {2U, 2U, 0U, {2U, 5U, 10U, 13U}}, {3U, 2U, 0U, {8U, 11U, 0U, 0U}}, {4U, 2U, 0U, {9U, 12U, 0U, 0U}}, {5U, 2U, 0U, {10U, 13U, 0U, 0U}}, {6U, 2U, 0U, {16U, 19U, 0U, 0U}}, {7U, 2U, 0U, {17U, 20U, 0U, 0U}}, {8U, 2U, 0U, {18U, 21U, 0U, 0U}}, {0U, 2U, 1U, {0U, 3U, 8U, 11U}}, {1U, 2U, 1U, {1U, 4U, 9U, 12U}}, {2U, 2U, 1U, {2U, 5U, 10U, 13U}}, {3U, 2U, 1U, {8U, 11U, 0U, 0U}}, {4U, 2U, 1U, {9U, 12U, 0U, 0U}}, {5U, 2U, 1U, {10U, 13U, 0U, 0U}}, {6U, 2U, 1U, {16U, 19U, 0U, 0U}}, {7U, 2U, 1U, {17U, 20U, 0U, 0U}}, {8U, 2U, 1U, {18U, 21U, 0U, 0U}}}; [L2619] static struct opl_devinfo *devc = 0; [L2620] static int detected_model ; [L2913-L2945] static char fm_volume_table[128U] = { -64, -48, -40, -35, -32, -29, -27, -26, -24, -23, -21, -20, -19, -18, -18, -17, -16, -15, -15, -14, -13, -13, -12, -12, -11, -11, -10, -10, -10, -9, -9, -8, -8, -8, -7, -7, -7, -6, -6, -6, -5, -5, -5, -5, -4, -4, -4, -4, -3, -3, -3, -3, -2, -2, -2, -2, -2, -1, -1, -1, -1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8}; [L3676-L5794] static struct synth_operations opl3_operations = {& __this_module, (char *)"OPL", 0, 0, 0, 0, & opl3_open, & opl3_close, & opl3_ioctl, & opl3_kill_note, & opl3_start_note, & opl3_set_instr, & opl3_reset, & opl3_hw_control, & opl3_load_patch, & opl3_aftertouch, & opl3_controller, & opl3_panning, & opl3_volume_method, & opl3_bender, & opl3_alloc_voice, & opl3_setup_voice, 0, {0, 0, 0, {(unsigned short)0, (unsigned short)0, (unsigned short)0, (unsigned short)0, (unsigned short)0, (unsigned short)0, (unsigned short)0, (unsigned short)0, (unsigned short)0, (unsigned short)0, (unsigned short)0, (unsigned short)0, (unsigned short)0, (unsigned short)0, (unsigned short)0, (unsigned short)0, (unsigned 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char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0}, 0}; [L5901] static int me ; [L5902] static int io = -1; [L5945] int LDV_IN_INTERRUPT ; [L5948] int var_opl3_open_12_p0 ; [L5949] int var_opl3_open_12_p1 ; [L5950] int res_opl3_open_12 ; [L5951] int var_opl3_close_13_p0 ; [L5952] int var_opl3_ioctl_1_p0 ; [L5953] unsigned int var_opl3_ioctl_1_p1 ; [L5954] void *var_opl3_ioctl_1_p2 ; [L5955] int var_opl3_kill_note_3_p0 ; [L5956] int var_opl3_kill_note_3_p1 ; [L5957] int var_opl3_kill_note_3_p2 ; [L5958] int var_opl3_kill_note_3_p3 ; [L5959] int var_opl3_start_note_8_p0 ; [L5960] int var_opl3_start_note_8_p1 ; [L5961] int var_opl3_start_note_8_p2 ; [L5962] int var_opl3_start_note_8_p3 ; [L5963] int var_opl3_set_instr_5_p0 ; [L5964] int var_opl3_set_instr_5_p1 ; [L5965] int var_opl3_set_instr_5_p2 ; [L5966] int var_opl3_reset_11_p0 ; [L5967] int var_opl3_hw_control_14_p0 ; [L5968] unsigned char *var_opl3_hw_control_14_p1 ; [L5969] int var_opl3_load_patch_15_p0 ; [L5970] int var_opl3_load_patch_15_p1 ; [L5971] char const *var_opl3_load_patch_15_p2 ; [L5972] int var_opl3_load_patch_15_p3 ; [L5973] int var_opl3_load_patch_15_p4 ; [L5974] int var_opl3_load_patch_15_p5 ; [L5975] int var_opl3_aftertouch_18_p0 ; [L5976] int var_opl3_aftertouch_18_p1 ; [L5977] int var_opl3_aftertouch_18_p2 ; [L5978] int var_opl3_controller_20_p0 ; [L5979] int var_opl3_controller_20_p1 ; [L5980] int var_opl3_controller_20_p2 ; [L5981] int var_opl3_controller_20_p3 ; [L5982] int var_opl3_panning_16_p0 ; [L5983] int var_opl3_panning_16_p1 ; [L5984] int var_opl3_panning_16_p2 ; [L5985] int var_opl3_volume_method_17_p0 ; [L5986] int var_opl3_volume_method_17_p1 ; [L5987] int var_opl3_bender_21_p0 ; [L5988] int var_opl3_bender_21_p1 ; [L5989] int var_opl3_bender_21_p2 ; [L5990] int var_opl3_alloc_voice_22_p0 ; [L5991] int var_opl3_alloc_voice_22_p1 ; [L5992] int var_opl3_alloc_voice_22_p2 ; [L5993] struct voice_alloc_info *var_opl3_alloc_voice_22_p3 ; [L5994] int var_opl3_setup_voice_23_p0 ; [L5995] int var_opl3_setup_voice_23_p1 ; [L5996] int var_opl3_setup_voice_23_p2 ; [L5997] int ldv_s_opl3_operations_synth_operations ; [L5998] int tmp ; [L5999] int tmp___0 ; [L6000] int tmp___1 ; [L6002] ldv_s_opl3_operations_synth_operations = 0 [L6003] LDV_IN_INTERRUPT = 1 [L6004] FCALL ldv_initialize() [L6005] FCALL ldv_handler_precall() VAL [__this_module={18446744073709551687:18446744073709551682}, detected_model=0, devc={0:0}, fm_volume_table={25:0}, io=-1, LDV_IN_INTERRUPT=1, ldv_s_opl3_operations_synth_operations=0, me=0, opl3_operations={26:0}, pv_map={24:0}] [L6006] CALL, EXPR init_opl3() [L5905] int tmp ; [L5908] COND FALSE !(io != -1) VAL [__this_module={18446744073709551687:18446744073709551682}, detected_model=0, devc={0:0}, fm_volume_table={25:0}, io=-1, LDV_IN_INTERRUPT=1, me=0, opl3_operations={26:0}, pv_map={24:0}] [L5917] return (0); VAL [\result=0, __this_module={18446744073709551687:18446744073709551682}, detected_model=0, devc={0:0}, fm_volume_table={25:0}, io=-1, LDV_IN_INTERRUPT=1, me=0, opl3_operations={26:0}, pv_map={24:0}] [L6006] RET, EXPR init_opl3() [L6006] tmp = init_opl3() [L6007] COND FALSE !(tmp != 0) VAL [__this_module={18446744073709551687:18446744073709551682}, detected_model=0, devc={0:0}, fm_volume_table={25:0}, io=-1, LDV_IN_INTERRUPT=1, ldv_s_opl3_operations_synth_operations=0, me=0, opl3_operations={26:0}, pv_map={24:0}, tmp=0] [L6102] tmp___1 = __VERIFIER_nondet_int() [L6103] COND TRUE tmp___1 != 0 || ldv_s_opl3_operations_synth_operations != 0 [L6013] tmp___0 = __VERIFIER_nondet_int() [L6015] case 0: [L6028] case 1: [L6036] case 2: [L6040] case 3: [L6045] case 4: [L6050] case 5: [L6054] case 6: [L6058] case 7: [L6062] case 8: VAL [__this_module={18446744073709551687:18446744073709551682}, detected_model=0, devc={0:0}, fm_volume_table={25:0}, io=-1, LDV_IN_INTERRUPT=1, ldv_s_opl3_operations_synth_operations=0, me=0, opl3_operations={26:0}, pv_map={24:0}, tmp=0, tmp___0=8, tmp___1=-22] [L6063] FCALL ldv_handler_precall() VAL [__this_module={18446744073709551687:18446744073709551682}, detected_model=0, devc={0:0}, fm_volume_table={25:0}, io=-1, LDV_IN_INTERRUPT=1, ldv_s_opl3_operations_synth_operations=0, me=0, opl3_operations={26:0}, pv_map={24:0}, tmp=0, tmp___0=8, tmp___1=-22] [L6064-L6065] CALL opl3_load_patch(var_opl3_load_patch_15_p0, var_opl3_load_patch_15_p1, var_opl3_load_patch_15_p2, var_opl3_load_patch_15_p3, var_opl3_load_patch_15_p4, var_opl3_load_patch_15_p5) [L3367] struct sbi_instrument ins ; [L3368] unsigned long tmp ; [L3369] int tmp___0 ; VAL [\old(count)=4294967336, \old(dev)=18446744073709551686, \old(format)=18446744073709551685, \old(offs)=18446744073709551681, \old(pmgr_flag)=18446744073709551684, __this_module={18446744073709551687:18446744073709551682}, addr={18446744073709551683:-65}, addr={18446744073709551683:-65}, count=4294967336, detected_model=0, dev=18446744073709551686, devc={0:0}, fm_volume_table={25:0}, format=18446744073709551685, ins={131:0}, io=-1, LDV_IN_INTERRUPT=1, me=0, offs=18446744073709551681, opl3_operations={26:0}, pmgr_flag=18446744073709551684, pv_map={24:0}] [L3371] COND FALSE !((unsigned int )count <= 39U) VAL [\old(count)=4294967336, \old(dev)=18446744073709551686, \old(format)=18446744073709551685, \old(offs)=18446744073709551681, \old(pmgr_flag)=18446744073709551684, __this_module={18446744073709551687:18446744073709551682}, addr={18446744073709551683:-65}, addr={18446744073709551683:-65}, count=4294967336, detected_model=0, dev=18446744073709551686, devc={0:0}, fm_volume_table={25:0}, format=18446744073709551685, ins={131:0}, io=-1, LDV_IN_INTERRUPT=1, me=0, offs=18446744073709551681, opl3_operations={26:0}, pmgr_flag=18446744073709551684, pv_map={24:0}] [L3376-L3377] CALL ldv_copy_from_user_7((void *)(& ins) + (unsigned long )offs, (void const *)addr + (unsigned long )offs, 40UL - (unsigned long )offs) VAL [__this_module={18446744073709551687:18446744073709551682}, detected_model=0, devc={0:0}, fm_volume_table={25:0}, io=-1, LDV_IN_INTERRUPT=1, me=0, opl3_operations={26:0}, pv_map={24:0}] [L6158] unsigned long tmp ; VAL [\old(n)=-18446744073709551641, __this_module={18446744073709551687:18446744073709551682}, detected_model=0, devc={0:0}, fm_volume_table={25:0}, from={18446744073709551683:0}, from={18446744073709551683:0}, io=-1, LDV_IN_INTERRUPT=1, me=0, n=-18446744073709551641, opl3_operations={26:0}, pv_map={24:0}, to={131:65}, to={131:65}] [L6160] CALL ldv_check_len((long )n) VAL [__this_module={18446744073709551687:18446744073709551682}, detected_model=0, devc={0:0}, fm_volume_table={25:0}, io=-1, LDV_IN_INTERRUPT=1, me=0, opl3_operations={26:0}, pv_map={24:0}] [L6213] COND FALSE !(n >= 0L) [L6215] CALL ldv_error() [L6170] reach_error() VAL [__this_module={18446744073709551687:18446744073709551682}, detected_model=0, devc={0:0}, fm_volume_table={25:0}, io=-1, LDV_IN_INTERRUPT=1, me=0, opl3_operations={26:0}, pv_map={24:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 26 procedures, 486 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.9s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 11.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 11.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 3228 SdHoareTripleChecker+Invalid, 10.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2923 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 467 IncrementalHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 651 mSDtfsCounter, 467 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=496occurred in iteration=1, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-23 02:01:05,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b10074-24d0-42cc-832f-5e9f9aa2fc15/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE